CHLOROPHYLL FLUORESCENCE AND PHOTOSYNTHETIC EFFICIENCY IN RELATION TO STOMATAL CONDUCTIVITY AND YIELD OF SUGAR BEET UNDER DROUGHT STRESS CONDITION

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VAZAN S.

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Journal: JOURNAL OF CROP PRODUCTION RESEARCH (ENVIRONMENTAL STRESSES IN PLANT SCIENCES) Year:2009 | Volume:1 | Issue:1 Page(s): 89-100

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Title

CHLOROPHYLL FLUORESCENCE AND PHOTOSYNTHETIC EFFICIENCY IN RELATION TO STOMATAL CONDUCTIVITY AND YIELD OF SUGAR BEET UNDER DROUGHT STRESS CONDITION

Author(s)

VAZAN S. | Issue Writer Certificate

Keywords

CHLOROPHYLL FLUORESCENCEQ2

PHOTOSYNTHETIC EFFICIENCYQ2

DROUGHT STRESSQ2

STOMATA CONDUCTIVITYQ2

SUGAR BEETQ3

Abstract

Variation of CHLOROPHYLL FLUORESCENCE can use as an index in evaluation of plant tolerance to physiological and environmental stress. In this order an experiment was conducted at Karaj in 1999. Research was carried out in factorial based on RCBD with 3 replications. Drought and non-drought stress treatments with 9 SUGAR BEET genotypes were randomized. Results showed that Fo was higher in stress than non-stress condition (P<0.05). Fm was higher in stress than non-stress condition (P<0.05). Fv was lower in stress condition and genotypes had not significant difference (P<0.05). PHOTOSYNTHETIC EFFICIENCY (Fv/Fm) was significantly reduced in stress condition (P<0.05). Genotypes had significant difference in Fv/Fm (P<0.01). Fv/Fm reduced in stress and genotypes means showed lower Fv/Fm in stress. As FyZ,Fm has a high correlation with photosynthetic quantum yield therefore in genotypes / with lower Fv/Fm, there was more sensitive photosynthetic system under DROUGHT STRESS. There was positive correlation between Fv/Fm and root yield but it was not significant at 5% level of probability. Results showed that there was positive correlation between Fv/Fm and STOMATA CONDUCTIVITY but it did not significant for leaf adaxial surface with 0.158 and leaf abaxial surface with 0.257 at the 5% level of p-f-obability.It found that as STOMATA CONDUCTIVITY reduced in stress condition.

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APA: Copy

VAZAN, S.. (2009). CHLOROPHYLL FLUORESCENCE AND PHOTOSYNTHETIC EFFICIENCY IN RELATION TO STOMATAL CONDUCTIVITY AND YIELD OF SUGAR BEET UNDER DROUGHT STRESS CONDITION. JOURNAL OF CROP PRODUCTION RESEARCH (ENVIRONMENTAL STRESSES IN PLANT SCIENCES), 1(1), 89-100. SID. https://sid.ir/paper/182328/en

Vancouver: Copy

VAZAN S.. CHLOROPHYLL FLUORESCENCE AND PHOTOSYNTHETIC EFFICIENCY IN RELATION TO STOMATAL CONDUCTIVITY AND YIELD OF SUGAR BEET UNDER DROUGHT STRESS CONDITION. JOURNAL OF CROP PRODUCTION RESEARCH (ENVIRONMENTAL STRESSES IN PLANT SCIENCES)[Internet]. 2009;1(1):89-100. Available from: https://sid.ir/paper/182328/en

IEEE: Copy

S. VAZAN, “CHLOROPHYLL FLUORESCENCE AND PHOTOSYNTHETIC EFFICIENCY IN RELATION TO STOMATAL CONDUCTIVITY AND YIELD OF SUGAR BEET UNDER DROUGHT STRESS CONDITION,” JOURNAL OF CROP PRODUCTION RESEARCH (ENVIRONMENTAL STRESSES IN PLANT SCIENCES), vol. 1, no. 1, pp. 89–100, 2009, [Online]. Available: https://sid.ir/paper/182328/en

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