Some Eco-physiological and Agronomic Responses of Several Salinity Tolerant Safflower Varieties to Water Deficit Stress

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PASBAN ESLAM BAHMAN

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Journal: Journal of Agricultural Science and Sustainable Production Year:2020 | Volume:30 | Issue:2 Page(s): 145-155

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Title

Some Eco-physiological and Agronomic Responses of Several Salinity Tolerant Safflower Varieties to Water Deficit Stress

Author(s)

PASBAN ESLAM BAHMAN | Issue Writer Certificate

Keywords

Leaf Chlorophyll IndexQ1

Leaf TemperaturesQ1

Oil YieldQ2

Relative Water ContentQ2

Seed YieldQ2

Stomatal ConductanceQ1

Abstract

Background and Objective: The goals of study were to recognize the effects of water deficit on ecophysiological and agronomic responses of safflower and introducing drought tolerant genotypes to cultivate in saline and dry lands. Materials and Methods: The experiment was conducted as split plot based on randomized complete blocks design with three replications in the East Azarbaijan Agriculture and Natural Resources Research and Education Center during two cropping seasons (2017-19). The experimental factors included drought stress as non-stressed and stressed from flowering to maturity and six safflower genotypes including Padideh, Golemehr, Mexico14, Mexico248, Mexico295 and Parnian. Results: Seed and Oil Yields and yield components of genotypes decreased by drought. Water deficit stress decreased RWC, Stomatal Conductance and Leaf Chlorophyll Index significantly. Amounts of these characters were significantly different among genotypes. Correlations among studied traits were significant. Stomatal Conductance and RWC indicated significant correlations with capitulum number per plant and oil percent. Also RWC indicated significant correlation with Seed Yield. Correlations among capitulum number per plant and grain number per capitulum with each other and seed oil percent, seed and Oil Yields, were positive and significant. These yield components had important role in productivity. Conclusion: Stomatal Conductance and RWC are able to reflect the effects of late season drought stress on safflower and can be used to select drought-tolerant genotypes. Golemehr, Mexico14, Mexico248 and Mexico295 genotypes indicated higher seed and Oil Yields in both normal and drought conditions and were seen suitable to cultivate in saline areas around Ormieh lake and areas with similar climate.

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APA: Copy

PASBAN ESLAM, BAHMAN. (2020). Some Eco-physiological and Agronomic Responses of Several Salinity Tolerant Safflower Varieties to Water Deficit Stress. JOURNAL OF AGRICULTURAL SCIENCE AND SUSTAINABLE PRODUCTION (JOURNAL OF AGRICULTURAL SCIENCE), 30(2 ), 145-155. SID. https://sid.ir/paper/377458/en

Vancouver: Copy

PASBAN ESLAM BAHMAN. Some Eco-physiological and Agronomic Responses of Several Salinity Tolerant Safflower Varieties to Water Deficit Stress. JOURNAL OF AGRICULTURAL SCIENCE AND SUSTAINABLE PRODUCTION (JOURNAL OF AGRICULTURAL SCIENCE)[Internet]. 2020;30(2 ):145-155. Available from: https://sid.ir/paper/377458/en

IEEE: Copy

BAHMAN PASBAN ESLAM, “Some Eco-physiological and Agronomic Responses of Several Salinity Tolerant Safflower Varieties to Water Deficit Stress,” JOURNAL OF AGRICULTURAL SCIENCE AND SUSTAINABLE PRODUCTION (JOURNAL OF AGRICULTURAL SCIENCE), vol. 30, no. 2 , pp. 145–155, 2020, [Online]. Available: https://sid.ir/paper/377458/en

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