EFFECT OF SUPERABSORBENT APPLICATION ON GRAIN YIELD AND SOME PHYSIOLOGICAL CHARACTERS OF CANOLA HYBRIDS UNDER TERMINAL DROUGHT STRESS CONDITION

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VAZIRI SANAZ; NADERI AHMAD

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Journal: Iranian Journal of Field Crop Science Year:2014 | Volume:45 | Issue:3 Page(s): 409-417

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Title

EFFECT OF SUPERABSORBENT APPLICATION ON GRAIN YIELD AND SOME PHYSIOLOGICAL CHARACTERS OF CANOLA HYBRIDS UNDER TERMINAL DROUGHT STRESS CONDITION

Author(s)

VAZIRI SANAZ | NADERI AHMAD | Issue Writer Certificate

Keywords

ANTIOXIDANT ENZYMESQ3

CYTOPLASM MEMBRANEQ2

RELATIVE WATER CONTENTQ2

Abstract

One of the soil and water management practices in order to delay drought stress under water deficit condition; is superabsorbent application. In order to study the effects of superabsorbent application on yield and yield components, two ANTIOXIDANT ENZYMES contents and water relation of two canola hybrids under terminal drought stress condition, a research was carried out under Ahvaz climate condition. A split-split plot experiment using a complete randomized block design with four replications, in 2009-10 cropping season was conducted. Two water treatments (well-water and terminal drought stress), two canola hybrids (308 and 401), and three superabsorbent applications (0, 75 and 150 Kg/ha) were considered as the main, sub and sub-sub plots, respectively. Yield and yield components, and some physiological characters including glutathione peroxidase (GPX), super oxide dismutase (SOD) contents, CYTOPLASM MEMBRANE leakage (CML) and leaf RELATIVE WATER CONTENT (RWC) were measured. The results showed that except for the harvest index, effect of water treatment was significant for grain yield, all other yield components and physiological characters. Hybrids differences were significant only for biological yield. The effect of superabsorbent application was not significant for biological yield and thousand grain weight. Interaction effects of hybrids by superabsorbent application and water treatment by superabsorbent application were significant for yield and yield components. Mean grain yield under well-water and terminal drought stress conditions were 2948 and 1345 Kg/ha, respectively. Contents of GPX, SOD enzymes and RWC decreased while CML increased under terminal drought stress condition. According to the comparison of grain yield and yield components and also based on physiological traits which were studied in this research, however, superabsorbent application decreased the water deficit effect under terminal drought stress condition, but it is not likely that superabsorbent application could compensate the terminal water stress damage per se.

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APA: Copy

VAZIRI, SANAZ, & NADERI, AHMAD. (2014). EFFECT OF SUPERABSORBENT APPLICATION ON GRAIN YIELD AND SOME PHYSIOLOGICAL CHARACTERS OF CANOLA HYBRIDS UNDER TERMINAL DROUGHT STRESS CONDITION. IRANIAN JOURNAL OF FIELD CROP SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES), 45(3), 409-417. SID. https://sid.ir/paper/153632/en

Vancouver: Copy

VAZIRI SANAZ, NADERI AHMAD. EFFECT OF SUPERABSORBENT APPLICATION ON GRAIN YIELD AND SOME PHYSIOLOGICAL CHARACTERS OF CANOLA HYBRIDS UNDER TERMINAL DROUGHT STRESS CONDITION. IRANIAN JOURNAL OF FIELD CROP SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES)[Internet]. 2014;45(3):409-417. Available from: https://sid.ir/paper/153632/en

IEEE: Copy

SANAZ VAZIRI, and AHMAD NADERI, “EFFECT OF SUPERABSORBENT APPLICATION ON GRAIN YIELD AND SOME PHYSIOLOGICAL CHARACTERS OF CANOLA HYBRIDS UNDER TERMINAL DROUGHT STRESS CONDITION,” IRANIAN JOURNAL OF FIELD CROP SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES), vol. 45, no. 3, pp. 409–417, 2014, [Online]. Available: https://sid.ir/paper/153632/en

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