Effects of seed pretreatment with salicylic acid on germination of four fenugreek (Trigonella foenum-graecum L) landraces under salinity stress
H.
Farhadi
دانشجوی کارشناسی ارشد دانشگاه فردوسی مشهد
author
M.
Azizi
استاد دانشگاه فردوسی مشهد
author
text
article
2016
per
Background and purpose: Salinity is an environmental factor that all stages of plant growth and seed germination to fruit production of more or less affected. Germination, plant growth under salinity stress is one of the most critical stages.Under these conditions, Pretreatment a method of improving the germination and growth in environmental stress conditions. Seed treatment is a method by which the seeds before putting on her bed and exposure to environmental conditions, ecological, physiological and biochemical preparations find for germination. This study was carried out to evaluate the effect of pretreatment four landraces of fenugreek with salicylic acid on some germination indices, Fenugreek and identify the most tolerant landrace to salinity. Materials and Methods: In this study was conducted in a factorial arrangement in Completely Randomized Design with three replications in laboratory of ‘Unique Plants’ in Ferdowsi University of Mashhad in 2013. The treatments includes four levels of salinity (in four levels of 0, 60, 120 and 180 mM) of sodium chloride and salicylic acid (at a concentration of 0 and 1 mM), respectively. In this experiment were studied the effect of salicylic acid on germination of seed pretreatment with fenugreek four landraces under salinity stress. Traits measured were germination percentage, germination rate, root length, shoot length, root dry weight, shoot dry weight, seedling dry weight and root dry weight ratio were to shoot. Finding: The results showed that effect of population, salicylic acid and salinity on measured traits were significant at 1% level (p Conclusion: According to the results, all treatments was significant on the traits while the interaction between landrace and the salicylic acid on shoot length, landrace and interaction of salinity and salinity and salicylic acid on root to shoot ratio and triple interaction salicylic acid, salinity, and a landrace in the measured traits were not statistically significant. Landraces of Isfahan and Amol more tolerant growth stages of the landraces showed Hamadan and Yasooj. Based on the results of this study appear to landrace as the landraces of the two salt tolerance genes used to modify the landraces with high performance potential.
Journal of Plant Production Research
Gorgan University Of Agricultural Sciences and Natural Resources
2322-2050
23
v.
3
no.
2016
1
19
https://jopp.gau.ac.ir/article_3318_fc26a977c25c339f69de5a9409361bbb.pdf
dx.doi.org/10.22069/jopp.2017.5829.1525
The feeding rose flower (Rosa hybrid L. cv. Grian Bdprex) with Ammonium Fertilizers by Cultan method compared with nitrate fed plants
Vahed
Bagheri
دانشجوی دکتری-دانشگاه ولی عصر رفسنجان
author
Hamid Reza
Roosta
دانشیار-دانشگاه ولی عصر رفسنجان
author
Fatemeh
Mohsenzdeh
کارشناسی ارشد دانشگاه جیرفت
author
text
article
2016
per
Nitrogen fertilizers are one of the most important factors in the production of greenhouse rose flower. Nitrate and ammonium are main mineral nitrogen sources, that can be absorbed by higher plants roots. Plants can absorb both nitrate and ammonium ions, but some of species are not able to have an optimum growth with ammonium as a sole nitrogen source. The form and application of fertilizers not only affect nitrogen uptake but also improve the absorption of other nutrients. In this research, the effect of form of nitrogen and application of sulfuric acid on growth and some nutrient elements absorption was investigated by rose plants ( Rosa hybrid L. cv. Grian Bdprex). With attention to alkalinity soil in most of agricultural area in Iran, aims of this research was determination of the best fertilizer and its application method for this area and increasing of elements absorption by plant and practical recommendation for rose producers. The experiment was carried out as completely randomized design with 5 treatments and 4 replications. Treatments were organic fertilizer + sulfuric acid + ammonium sulfate, organic fertilizer + sulfuric acid + calcium nitrate, organic fertilizer + calcium nitrate + distilled water, organic fertilizer + ammonium sulfate + distilled water and control (without fertilizer or acid + water). Examined plants were 3-years-old rose cv Grian Bdprex. Plants irrigated every 4 days and used soil was clay loam. The results showed that, nutrition with Cultan method that was combination of organic fertilizers, ammonium, and sulfuric acid, in soil with high pH, led to an increase in vegetative growth (leaf fresh and dry weight, flower fresh and dry weight, stem fresh and dry weight, root fresh and dry weight, flower stem length) flower diameter, vise life, chlorophyll a, carotenoids and nitrogen, potassium and iron elements concentrations, and a decrease in zinc concentration in the plant. For instance, 85 percent increase was observed in leaf dry weight at nitrate calcium + acid treated plants compared to control. Application of nitrate fertilizer with acid in comparison with nitrate fertilizer increased vegetative growth, flower quality, iron, nitrogen and potassium elements concentration, but decreased Zn element concentration. Therefore, we concluded that due to positive effect of Cultan method on growth, nutrient concentration, chlorophyll a, rose flower yield, and vase life of cut flowers, this method could be used for growing rose flower ( Rosa hybrid L. cv. Grian Bdprex), especially in soils with high pH.
Journal of Plant Production Research
Gorgan University Of Agricultural Sciences and Natural Resources
2322-2050
23
v.
3
no.
2016
21
39
https://jopp.gau.ac.ir/article_3319_cbf999185d477dc7b8f031d55b081ba2.pdf
dx.doi.org/10.22069/jopp.2017.8237.1794
Optimization of Callus Induction and Somatic Embryogenesis in Two Genotypes of Medicinal Chavil Plant (Ferulago angulata L.)
E.
Sorbi
MSc student, yasouj university
author
A.
Moradi
عضو هیأت علمی دانشگاه یاسوج
author
A.
Masoumi Asal
استادیار دانشگاه یاسوج
author
H. R.
Baloochi
دانشیار دانشگاه یاسوج
author
text
article
2016
per
Background and objectives: In order to produce artificial seed, somatic embryogenesis has been introduced as one of the most effective methods to overcome the problems of cultivation, propagation and conservation of medicinal plants. For this reason, callus induction, embryogenesis and somatic embryos of Chavil (Ferulago angulata L.) were evaluated on diluted Murashige and Skoog growth medium ( MS) in three separate experiments. Materials and methods: The first experiment (callus induction) was done in a two factors factorial experiment consists of hormones combination (in 10 concentration combination of naphthalene acetic acid (NAA) and benzyl amino-purine (BAP)( and genotype (Koohgol and Chehel-Cheshmeh genotypes) based on a completely randomized design with three replications in the central laboratory of agricultural college, yasouj univeristy. Factors of the second experiment (somatic embryogenesis) were consisted of genotype, explant (root and shoot) and light (full light and dark). In the third study (assessment of somatic embryo), after seeing signs of torpedo embryo, number of globular, heart and torpedo embryos formed on the surface of embryogenic calluses in each genotype counted and were compared using T-test. Results: In callus induction experiment (first experiment), genotype and hormonal composition in combination had a great impact on callus induction, so that the interaction between the two treatment groups was significant at 1% probability level. Explants of root and shoot in both genotypes were produced pre-embryo in the same concentration (1.5 mg/l) of NAA and BAP. Under this condition, the lowest callus induction percentage (zero ) was observed in the control (hormone-free) and the treatments that high concentrations of auxin or cytokinin concentration was used and or one of the hormones was absent in the growth medium. In the embryogenesis experiment (second experiment) shoot and root explants have formed globular embryo in Koohgol and Chehel-cheshmeh genotypes, respectively. The results of this experiment also showed that under illumination condition, by decreasing auxin concentration the shoot explant in Koohgol and root explant in the Chehel-cheshmeh have produced calluses with white and brittle texture with capability to producing embryo. By transferring calluses with globular embryos to hormone-free medium, development of globular embryo to torpedo was continued. In the third study (assessment of somatic embryo), as embryogenic callus formation conditions were the same, so only two genotypes were compared in terms of the number of somatic embryo and observed that both genotypes answered similarly to somatic embryo formation. Conclusion: Overall results of this experiment showed that explant type is related to genotype and it is possible to produce somatic embryos and synthetic seed by using callus with white and brittle texture.
Journal of Plant Production Research
Gorgan University Of Agricultural Sciences and Natural Resources
2322-2050
23
v.
3
no.
2016
41
62
https://jopp.gau.ac.ir/article_3320_6812eaf547b8f5fd9e13d398f8611f23.pdf
dx.doi.org/10.22069/jopp.2017.8637.1839
Effect of Water Deficit Stress on Growth, Yield and Aloin Concentration of Aloe vera L. at different harvesting dates
S.
Hazrati
دانشگاه تربیت مدرس ، دانشکده کشاورزی گروه زراعت
author
Z.
Tahmasebi
دانشگاه تربیت مدرس ، دانشکده کشاورزی گروه زراعت
author
S.A.M.
Modares Sanevi
دانشگاه تربیت مدرس، دانشکده کشاورزی، گروه زراعت
author
A.
Mokhtasi
دانشگاه تربیت مدرس، دانشکده کشاورزی، گروه زراعت
author
text
article
2016
per
Abstract Background and objectives: Aloe vera is one of the most economically important medicinal plants in many countries which used in food, cosmetics and pharmaceutical industries; it is widely cultivated throughout the arid and semi-arid regions. Therefore, the current study was aimed to evaluate the effects of different water stress on growth, yield and aloin concentration during plant growth stages. Materials and methods: This study was conducted in research greenhouse of Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran. The experimental design was a randomized complete block design with a split plot in time arrangement of treatments in four replicates. Treatments including water deficit stress (irrigation after depleting of 20%, 40%, 60% and 80% field capacity (FC)) and harvesting dates ( 90, 180 and 270 days after imposing the irrigation treatments). Irrigation treatments and harvesting dates were considered as main- and sub-plots, respectively. Growth changes, yield and aloin concentration were evaluated during growing period. Results: The results demonstrated that the growth and yield values decreased with increasing water stress severity. Generally, the highest number, width and thickness of leaf were observed when the plants were irrigated at 20% FC, which was higher increased by 19, 22 and 16%, respectively compared with irrigation after depleting 80% of the field capacity, respectively. Irrigation at 40% FC increased plant height and leaf length by 16% and 21%, respectively, compared with the irrigation at 80% FC. The highest leaf and gel fresh weight were observed in 270 days after imposing the irrigation at 40% FC which increased by 44 and 49% compared with irrigation at 80% FC. Results also showed that the pup number decreased with increasing water stress, the maximum pup number was observed when plants were irrigated at 40% FC at 90 days after imposing the irrigation treatments. aloin concentration and Total Soluble Solids (TSS) increased in Aloe vera plants under severe water stress. The highest aloin and TSS content was observed when the plants were irrigated at 80% FC at 90 and 270 days after imposing the irrigation treatments, respectively. Conclusion: In general, severe water stress decreased leaf yield and plant growth while caused a significant increase in aloin concentration and TSS. Finally, irrigation after depleting of 40% of soil water content was the best treatment for growth and yield, also depleting of 80% of soil water content was the best treatment for aloin and TSS during all growth period. Keywords: Aloe vera, Growth, Field capacity, Yield, Harvest date
Journal of Plant Production Research
Gorgan University Of Agricultural Sciences and Natural Resources
2322-2050
23
v.
3
no.
2016
63
80
https://jopp.gau.ac.ir/article_3321_80efad30e20351e05c927332b43dd8de.pdf
dx.doi.org/10.22069/jopp.2017.9304.1886
Studing of genetic diversity of some Iranian acid lime (Citrus aurantifolia Swingle) genotypes via AFLP marker
S.
Jahangirzadeh Khiavi
PhD student, Department of Horticultural Sciences, Faculty of Agricultural Sciences, University of Guilan, Rasht, Iran
author
Y.
Hamidoghli
دانشیاری گروه علوم باغبانی، دانشکده کشاورزی، دانشگاه گیلان
author
B.
Golein
دانشیار موسسه تحقیقات مرکبات کشور (رامسر).
author
A.
Sabouri
استادیار گروه زراعت و اصلاح نباتات دانشگاه گیلان.
author
text
article
2016
per
Background and objectives: Citrus is one of the most important crops of semi-tropical regions in the world and acid lime (Citrus aurantifolia) constitute a great proportion of this group. Cultivation of limes are common in southern regions of Iran from many years ago and has an important role in the economy of this region. A large number of limes in these regions were affected and destroyed by many resons and knowledge about genetic of this plants for desining of breeding programs to find suitable plant is helpful. Therefore, in this survey, the genetic diversity of some acid lime genotypes were identified in major cultivation regions of this crop in south of Iran with comparison by six commercial cultivars. Materials and methods: After selecting young and well expanded leaves, their genomic DNA were extracted. AFLP method was done by using four primer combinations of EcoRI and MseI including ECGC/MAGA, ECCA/MAGA, ECCA/MAGT and ECGC/MAAG. Genetic relationship between 30 local genotypes from three regions Darab (Fars), Manoojan (Kerman), Minaab (Hormozgan) and six foreign cultivars were considered. Collected data was analysed by Jacard similarity coefficient and UPGMA algorithm. Results: The four combinations produced 126 scorable bands that had %70.63 polymorphism. Number of amplified bands for each primer combination were 26 to 37 (with average of 22 bands for each primer combination). The maximum number of polymorphic bands was observed 27 in ECCA-MAGT combination. Polymorphic information content (PIC) was measured 0.4 to 0.5 for all combinations with an average of 0.48. Similarity range obtained by Jacard similarity coefficient was observed 0.24 to 0.96. Minimum similarity was found between Sweet lime (Citrus limetta) and D8 genotype from Darab and maximum similarity was between two genotypes of Minaab region (M4-2 and M4-2). Cluster analysis arranged samples in four groups that this grouping was not consistent with studied regions. In other words, samples were not separated on basis of collection regions but samples of Minaab region had been shown high level genetic similarity with each other in comparison with samples of Manoojan and Darab regions. This is due to imitated cultivated citrus varieties in the region. Conclusion: Significant polymorphic percent and polymorphic information content (PIC) obtained from primer combinations used in this study showed ability of these markers to identify different genotypes of acid lime. By using these markers remarkable genetic diversity between genotypes of acid lime were found. But this diversity was not such that could make the difference between genotypes of various locations. It seems that this separation could be achieved by increasing the number of primer combinations and using other markers such as SSR and SNP. Also, results of this study showed that Iranian acid lime genotypes have high level of genetic diversity because they were propagated sexually.
Journal of Plant Production Research
Gorgan University Of Agricultural Sciences and Natural Resources
2322-2050
23
v.
3
no.
2016
81
96
https://jopp.gau.ac.ir/article_3322_a0fe7869916acf687daed9dc038bd861.pdf
dx.doi.org/10.22069/jopp.2017.9336.1892
The effect of micro- and nanoparticles of silicon dioxide (SiO2) on some qualitative characteristics and nutrient elements of strawberry fruit (Fragaria ananassa Duch.)
Rahman
Yousefi
گروه باغبانی دانشگاه بوعلی سینا همدان
author
Mahmood
Esna-Ashari
Member of Academic Staff, Department of Horticultural Sciences, Bu-Ali Sina University, Hamedan, Iran
author
text
article
2016
per
Background and objectives: Silicon (Si) is one of the beneficial nutrient elements for the most of the plants. Recent studies have shown that Si increases the yield and crop quality and plays an important role in plant resistance against the environmental stresses. Strawberries are the good resource of bioactive compounds being an important and valuable fruit in the world from the economical and commercial point of view. For the agricultural purposes, feeding strawberry plants by different nutrient elements such as silicon can affect nutritional value and fruit quality. With science development and nanoparticle production, their application in different industry such as agriculture introduced The aim of this study was to evaluate the effect of different concentrations of micro- and nano-SiO2 with two methods of usage including foliar spray and root feeding applied through the growth stage of strawberry plants on some qualitative characteristics and nutrient elements of fruit. Materials and methods: This study was conducted in the research laboratory and greenhouse of Bu-Ali Sina University in a factorial experiment based on a completely randomized design with 3 replications and 4 plants in each replicate. Foliar spray and root feeding were carried out using 20, 40, 60 and 80 mg L-1 micro- and nano-SiO2 at two separate growth stages. After fruiting, the ripened fruit were harvested, and some nutrient elements as well as qualitative characteristics of fruit including phosphorus, potassium, magnesium, iron, nitrate, total soluble sugar, vitamin C, TSS and juice acidity measured, and finally the data were statistically analyzed. Results: Application of silicon increased the amounts of potassium, magnesium, iron, total soluble carbohydrate, vitamin C, TSS and TA significantly, but reduced phosphorus amount, and nitrate remained unchanged. Among the treatments, 60 mg L-1 nano-SiO2 in root feeding method showed the better effects on studied traits than the other treatments as well as the control. Overall, the application of nano-SiO2 proved to have better results than micro-SiO2. Conclusion: Application of silicon had a significant influence on nutrient elements and quality of strawberry fruits. The effect of silicon on nutrient elements and quality of fruits depended on the form, concentration and application method of silicon. Based on the results, utilization of SiO2 particularly in nano-scale during the growth stage increased the majority of nutrient elements and quality of strawberry fruit. Overall, in soilless culture and greenhouse production of strawberries, the application of 60 mg L-1 nano-SiO2 through the root feeding method is recommended.
Journal of Plant Production Research
Gorgan University Of Agricultural Sciences and Natural Resources
2322-2050
23
v.
3
no.
2016
97
113
https://jopp.gau.ac.ir/article_3323_cbb121c1542294a93987e021e37d3617.pdf
dx.doi.org/10.22069/jopp.2017.9340.1890
Evaluation of Genetic Diversity Among Clones of Different Seedless and Seeded Grapes Cultivars in Arak City by Morphological Characteristics
Javad
Erfani Moghadam
Assistant Professor of Department of Horticulture Science, Ilam University
author
مریم
رفیعی
دانشجوی کارشناسی ارشد دانشگاه ایلام
author
آرش
فاضلی
استادیار گروه زراعت و اصلاح نباتات دانشگاه ایلام
author
text
article
2016
per
Background and objectives: Grapevine is one of the most important fruit crops in Iran which is used as table grape and raisin consumption. Among producing countries of grape, Iran is ranked ninth globally and the grape production is estimated to be two million tons. Ampelography was utilized for evaluation of genetic structure in grapevine. Ampelography is the science of phenotypically identifing of grapevines to distinguish thousands of grape cultivars, without the aid of genetic markers. This study has been conducted to investigate of some seeded and seedless clones of grape cultivars in Arak city in order to identify desirable clones for the development and cultivation of them. In addition, the identification of clones and desirable cultivars based on investigation of different characteristics from botany and horticultural perspective can be used for germplasm preservation and grapevine breeding programs. Materials and methods: In this study, genetic variation among forty-nine clones of seeded and seedless grapevine belonging to Vitis vinifera species were evaluated based on fifty morphological characters of leaf, shoot, fruit and seed. These accessions were collected from different geographical sites in Arak city. Leaf and friuts samples were collected randomly from various parts of trees at normal fully mature of each accession. In order to evaluate of traits related to leaf, thirty leaves were selected randomly from each clone with three replications and the characters of them were recorded. To investigate the traits related to fruit, three bunches and thirty berries from bunch were chosen randomly from each clone with three replications and the characters of them were recorded. Results: Preliminary results illustrated that some traits such as bunch weight, the number of berries in bunch, berry weight, total soluble solids percentage, titratable acidity percentage, seed fresh weight, seed dry weight and TSS/TA index have shown high variability among grapevine clones. The genotypes have been divided in two main groups according to the results derived from cluster analysis so that the seed cultivars were separated from seedless cultivars. Simple correlation analysis among eighteen main traits showed that positive correlations were detected among traits. The principle component analysis results revealed that the first thirteen components explained 85.38% of the total variation for studied accessions. The first five components which related to fruit and leaf explained about 59.43% of the total achieved variability. In PCA, fruit weight, fruit length, fruit diameter, fruit size simultaneously character related to seed such as seed fresh weight, seed dry weight, seed moisture percentage, seed dry matter percentage were predominant in the first components, indicating that they were useful for the assessment of grapevine clones characterization. Conclusion: Finally, the results of this study showed that there are high variability among clones of grapevine cultivars in terms of quantity and quality characteristics of fruit. Also, some clones belonging to seeded and seedless grape cultivars had desirable traits. Therefore, these clones can be used for commercial cultivation or utilization in grapevine breeding program to achieve desirable progeny. Among seedless cultivars, the maximum of berry weight (3.34 gr) has been estimated in sample 23 (Askary clone) which was collected from Hazaveh village of Arak city. Also, the maximum of berry weight (5.24 gr) is obtained in sample 40 (Shahani clone) among seeded cultivars. In general, the production of seedless grape with largest berry is important to table grape breeding and these results illustrated that with identification of grape cultivars and desirable parent selection for breeding programs, new seedless cultivars with large berry from crosses of seeded and seedless grapes can be produced.
Journal of Plant Production Research
Gorgan University Of Agricultural Sciences and Natural Resources
2322-2050
23
v.
3
no.
2016
115
134
https://jopp.gau.ac.ir/article_3324_98596adff55a8b73eea6f24785b9c9c1.pdf
dx.doi.org/10.22069/jopp.2017.9482.1900
Study of the effect of potassium permanganate on the biochemical characteristics of onion (Allium cepa)
Maryam
Dabbagh
گروه باغبانی دانشگاه علوم کشاورزی و منابع طبیعی گرگان
author
K.
Mashyekhi
گروه باغبانی دانشگاه علوم کشاورزی و منابع طبیعی گرگان
author
جاوید
قرخلو
دانشگاه علوم کشاورزی و منابع طبیعی گرگان
author
F.
Varasteh
گروه باغبانی دنشگاه علوم کشاورزی و منابع طبیعی گرگان
author
text
article
2016
per
Plant hormones play important roles in plant growth and development. Ethylene is the only gaseous plant hormone that impact on plants is known about a century ago. Nowadays, ethylene absorbent like powdered potassium permanganate waterproof package for increasing the life after harvesting horticultural products are widely used, but there are no report on its application as spraying and soaking and the effects on plants. The aim of this study was to evaluate the effect of potassium permanganate on the biochemical characteristics of onion (Allium cepa). For this purpose, onion bulbs were treated by soaking or spraying directly on the foliage after germination, with different concentrations of potassium permanganate (0, 5, 10, 20, 40, 60, 80 and 100 ppm). Characteristics such as anthocyanins of leaves, chlorophyll, potassium, phenols, flavonoids of leaves, ethylene, fresh and dry weight were measured during the experiment. The use of potassium permanganate sprayed attract ethylene plant and a change in the physiological characteristics of the plant. So that the maximum amount of fresh weight (146.94 g) and potassium (66.497 g) recorded in 100 ppm spray treatment. The maximom amount of phenols (0.627) and phelavenoids (1.017) recorded in 5 ppm spray treatment and soaking control, respectively. Plant hormones play important roles in plant growth and development. Ethylene is the only gaseous plant hormone that impact on plants is known about a century ago. Nowadays, ethylene absorbent like powdered potassium permanganate waterproof package for increasing the life after harvesting horticultural products are widely used, but there are no report on its application as spraying and soaking and the effects on plants. The aim of this study was to evaluate the effect of potassium permanganate on the biochemical characteristics of onion (Allium cepa). For this purpose, onion bulbs were treated by soaking or spraying directly on the foliage after germination, with different concentrations of potassium permanganate (0, 5, 10, 20, 40, 60, 80 and 100 ppm). Characteristics such as anthocyanins of leaves, chlorophyll, potassium, phenols, flavonoids of leaves, ethylene, fresh and dry weight were measured during the experiment. The use of potassium permanganate sprayed attract ethylene plant and a change in the physiological characteristics of the plant. So that the maximum amount of fresh weight (146.94 g) and potassium (66.497 g) recorded in 100 ppm spray treatment. The maximom amount of phenols (0.627) and phelavenoids (1.017) recorded in 5 ppm spray treatment and soaking control, respectively. Keywords: Biochemical characteristics, Ethylene, Onion, Soaking, Spraying.
Journal of Plant Production Research
Gorgan University Of Agricultural Sciences and Natural Resources
2322-2050
23
v.
3
no.
2016
135
149
https://jopp.gau.ac.ir/article_3325_2f5fc4bd8c94df835e55f3e00f8cf2b8.pdf
dx.doi.org/10.22069/jopp.2017.9604.1908
Evaluate the effects of winter stress(freezing and snow) on some morphological and physiological reactions of commercial citrus in Tonekabon area
M.
Mehrabi
کارشناس ارشد، دانشگاه آزاد اسلامی واحد رشت
author
Alireza
Eslami
عضو هیات علمی دانشگاه آزاد اسلامی واحد رشت
author
Y.
Tajvar
عضو هیات علمی مرکز تحقیقات مرکبات
author
text
article
2016
per
Citrus is a subtropical crops, therefore susceptible to freeze stress. This fruit tree has a different response to freeze stress according to the genotype and environment climate. Therefore, to evaluate the damage of freeze stress (winter 2014) on commercial citrus of Tonekabon area (Thomson Navel orange, Satsuma and Page mandarin) the morphological and physiological responses are assayed based on randomized complete block design (average was evaluated by LSD).The results showed that freeze stress can reduce chlorophyll (a, b, total) and leaf water content (p≤ 0.01). Based on data the Thomson Navel orange had the greatest reduction in these parameters. Therefore, the lipid peroxidation (1.48 µmol/g FW) and electrolyte leakage (53.06%) of Thomson Navel orange was higher than the other subjects in this study. The laboratory analysis showed that in the Satsuma mandarin prolin content (30.3 mg/g FW) and anti-oxidant capacity (73.44%) of leaves was higher than the other cultivars. But the assessment of fracture branches, most of the losses was recorded in the Page mandarin.In general, we can suggest that the Satsuma mandarin was more persistent than the other two cultivars of this study, was best tolerant to freezing stress because of lowest EC parameter in winter and best flowering in spring.
Journal of Plant Production Research
Gorgan University Of Agricultural Sciences and Natural Resources
2322-2050
23
v.
3
no.
2016
151
157
https://jopp.gau.ac.ir/article_3326_aa72482da45181d19616b39f6064074f.pdf
dx.doi.org/10.22069/jopp.2017.9245.1883
Effect of Salicylic acid and Jasmonic acid on growth traits and root and shoot ionic interaction of Lavender (Lavendula officinalis L.) in salt stress conditions
Fereshteh
Rezaei Nasab
Department of Agronomy, Yadegar-e-Imam Khomeini (RAH) Shahre- Rey Branch, Islamic Azad University, Tehran, Iran.
author
Alireza
Pazoki
Accademic member/Islamic Azad university, Yadegar-e-Imam Khomeini (RAH) Shahre-Rey Branch
author
Reza
Monem
Department of Agronomy, Yadegar-e-Imam Khomeini (RAH) Shahre- Rey Branch, Islamic Azad University, Tehran, Iran.
author
text
article
2016
per
Background and objectives: Lavender (Lavendula officinalis L.) is the most important medicinal plant, belongs to lamiaceae family in which had a role in ancient medicine. Growth and yield of plants are being limited by the abiotic environmental stresses including salinity in many places throughout the world, which have caused a widespread harm to the plants, also it is considered as an important functional limitations for yield around the world. This study was done to evaluate effect of salicylic acid and jasmonic acid on some growing traits and sodium and potassium content of the root and shoot in Lavender in salinity stress conditions. Also evaluating the foliar application of salicylic acid and jasmonic effect to reduce the harmful effects of salinity stress and reach to the effective introduction of new inputs was examined. Materials and methods: This experiment was done at Azad Islamic University, Yadegar-e-Imam Khomeini (RAH) Shahre-Rey branch and greenhouse located in the Region 4 in Jun 2015. The experiment was done as factorial based on completely randomized blocks deisign with four replications. The experimental factors were included salt stress (NaCl) in four levels (0, 25, 50, 75 mM), Salicylic acid in two levels (0 and 0.7 mM), and Jasmunic acid in two levels (0 and 100 µM). Results: The average comparison simple effects of salinity showed that this factor significantly reduced the morphological traits of root and shoot dry weight, root and shoot length, branches number, Leaves surface, also maide decreased in root and shoot potassium, and increased the root and shoot sodium. The results indicated that only triple interaction effect of experimental factors were meaningful on dry weight of root, At this situation the optimum root dry weight equivalent 2.21 gr, was gained in the factors of salinity stress and Salicylic acid and Jasmonic acid foliar application. According to findings, the highest root potassium contents with 1.20 and 1.96 element weight percent per dry matter conducted in non-salt stress treatment and 0.7 mM Salycilic acid or 100 µm Jasmonic acid application conditions alternatively. Conclusion: Based on the results, it seems that potasium adsobtion in root and shoot has a role in enhancing salt resistance as an effective mechanism. However in most of experimental traits, the role of Salycilic acid in enhancing growth traits potasium content of root and shoot and at the other side sodium decrease in root and shoot of Lavender was more effective than Jasmonic acid.
Journal of Plant Production Research
Gorgan University Of Agricultural Sciences and Natural Resources
2322-2050
23
v.
3
no.
2016
159
166
https://jopp.gau.ac.ir/article_3327_f5f1d1ed9a9d74190f8bd1c5d108c43c.pdf
dx.doi.org/10.22069/jopp.2017.9570.1905
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text
article
2016
per
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Journal of Plant Production Research
Gorgan University Of Agricultural Sciences and Natural Resources
2322-2050
23
v.
3
no.
2016
0
0
https://jopp.gau.ac.ir/article_4202_d41d8cd98f00b204e9800998ecf8427e.pdf
dx.doi.org/10.22069/jopp.2016.4202
ABSTRACT
text
article
2016
per
Journal of Plant Production Research
Gorgan University Of Agricultural Sciences and Natural Resources
2322-2050
23
v.
3
no.
2016
0
0
https://jopp.gau.ac.ir/article_4203_e263c2f7372613a81dfba21fa02b9214.pdf
dx.doi.org/10.22069/jopp.2016.4203
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text
article
2016
per
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Journal of Plant Production Research
Gorgan University Of Agricultural Sciences and Natural Resources
2322-2050
23
v.
3
no.
2016
0
0
https://jopp.gau.ac.ir/article_4204_fc5a7532fbbf47449f5f1b0f1b410acc.pdf
dx.doi.org/10.22069/jopp.2016.4204