COMPARISON OF PHYSIOLOGICAL RESPONSES TO SALINITY STRESS IN CANOLA (BRASSICA NAPUS L.) GENOTYPES

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ATLASI PAK V.; NABIPOUR M.; MESKARBASHI M.

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Journal: Journal of Water and Soil Science Year:2010 | Volume:14 | Issue:51 Page(s): 171-182

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Title

COMPARISON OF PHYSIOLOGICAL RESPONSES TO SALINITY STRESS IN CANOLA (BRASSICA NAPUS L.) GENOTYPES

Author(s)

ATLASI PAK V. | NABIPOUR M. | MESKARBASHI M. | Issue Writer Certificate

Keywords

SALINITY STRESSQ3

CANOLAQ3

QUANTUM YIELD OF PSIIQ3

GENOTYPESQ3

PHOTOSYNTHESISQ3

Abstract

Gray mold, caused by Botrytis cinerea, is a serious disease of cut rose flowers (Rosa hybrida L.) in Iran. In order to elucidate the effects of different potassium and calcium levels in nutrient solution on susceptibility of cut rose flowers to gray mold, this experiment was carried out as factorial design in a randomized complete block with four replications at Safi Abad Agricultural Research center in 2008 for one year. In this experiment, rose plants were grown and subjected to three levels of potassium (1.0, 5.0 and 10.0 mM) in combination with two levels of calcium (1.6 and 4.8 mM) under hydroponic condition. Rose flowers from two consecutive harvesting periods were sprayed with the conidial suspension (104 spore/ml) of B. cinerea isolate. At the end of experiment the disease severity was recorded and analyzed. The results indicated that application of 10.0 mM K in the nutrient solution led to increasing rose disease severity to gray mold (30.4% day-1) compared to 1.0 mM (24.8 % day-1) and 5.0 mM (26.2% day-1) of K levels (P<0.01). The increased susceptibility was associated with a decreased concentration of Ca in the rose petals. Correlation analysis revealed that susceptibility of rose flowers to gray mold significantly increased with K to sum cations ratio in the nutrient solution (r=0.94). The increase of Ca supply from 1.6 to 4.8 mM resulted in decline of disease severity from 29.6 to 24.6 % day-1 (P<0.01). Therefore, balanced application of potassium and calcium (5.0 and 4.8 mM, respectively) is recommendable for preventing antagonistic effects between them and reducing of rose gray mold intensity under hydroponic conditions.

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APA: Copy

ATLASI PAK, V., NABIPOUR, M., & MESKARBASHI, M.. (2010). COMPARISON OF PHYSIOLOGICAL RESPONSES TO SALINITY STRESS IN CANOLA (BRASSICA NAPUS L.) GENOTYPES. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), 14(51), 171-182. SID. https://sid.ir/paper/14866/en

Vancouver: Copy

ATLASI PAK V., NABIPOUR M., MESKARBASHI M.. COMPARISON OF PHYSIOLOGICAL RESPONSES TO SALINITY STRESS IN CANOLA (BRASSICA NAPUS L.) GENOTYPES. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES)[Internet]. 2010;14(51):171-182. Available from: https://sid.ir/paper/14866/en

IEEE: Copy

V. ATLASI PAK, M. NABIPOUR, and M. MESKARBASHI, “COMPARISON OF PHYSIOLOGICAL RESPONSES TO SALINITY STRESS IN CANOLA (BRASSICA NAPUS L.) GENOTYPES,” WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), vol. 14, no. 51, pp. 171–182, 2010, [Online]. Available: https://sid.ir/paper/14866/en

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