RELATIONSHIP BETWEEN GRAIN FILLING RATE, GRAIN FILLING DURATION, YIELD COMPONENTS AND OTHER PHYSIOLOGICAL TRAITS IN RICE (ORYZA SATIVA L.)

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MOJTABAIE ZAMANI M.; ESFAHAEI M.; HONARNEZHAD R.; ALAH GHOLIPOUR M.

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Journal: Journal of Water and Soil Science Year:2007 | Volume:10 | Issue:4 (A) Page(s): 213-225

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Title

RELATIONSHIP BETWEEN GRAIN FILLING RATE, GRAIN FILLING DURATION, YIELD COMPONENTS AND OTHER PHYSIOLOGICAL TRAITS IN RICE (ORYZA SATIVA L.)

Author(s)

MOJTABAIE ZAMANI M. | ESFAHAEI M. | HONARNEZHAD R. | ALAH GHOLIPOUR M. | Issue Writer Certificate

Keywords

RICEQ3

GRAIN FILLING PROCESSQ3

YIELDQ2

PATH ANALYSISQ3

Abstract

Relationship between grain filling rate, grain filling duration, YIELD components and other physiological traits of RICE was investigated in 93 genotypes of RICE at RICE Research Institute of Iran (Rasht, Iran) during the growing season of 2001-2002. The experiment was performed without any statistical design. Panicles of main stem were tagged and taken at 3- day intervals during the grain filling period. A cubic polynomial model was used to fit the grain dry weight data (mean of R2= 0.98 for all genotypes) and the grain filling rate and duration estimated for the genotypes. Traits related to sink capacity such as grain weight, grain size and grain number per panicle correlated with grain filling rate but source capacity- related traits except chlorophyll content of flag leaf and secondary leaf did not correlate with grain filling rate. Stepwise regression showed that final grain weight, grain filling duration and flag leaf angle contributed to grain filling rate, however, PATH ANALYSIS showed that only final grain weight and grain filling duration had the greatest effect on grain filling rate. The results of stepwise regression irrespective of final grain weight showed that chlorophyll content of flag leaf, grain width, grain filling duration and grain length contributed to grain filling rate. PATH ANALYSIS results showed that the final grain weight had the greatest direct positive effect on grain filling rate, while grain filling duration had negative effect on grain filling rate.

Cites

EFFECT OF ROW SPACING AND SEED RATE ON OIL YIELD AND GRAIN FILLING PROCESS OF RGS003 CULTIVAR BRASSICA NAPUS IN BEHBAHAN

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APA: Copy

MOJTABAIE ZAMANI, M., ESFAHAEI, M., HONARNEZHAD, R., & ALAH GHOLIPOUR, M.. (2007). RELATIONSHIP BETWEEN GRAIN FILLING RATE, GRAIN FILLING DURATION, YIELD COMPONENTS AND OTHER PHYSIOLOGICAL TRAITS IN RICE (ORYZA SATIVA L.). WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), 10(4 (A)), 213-225. SID. https://sid.ir/paper/14751/en

Vancouver: Copy

MOJTABAIE ZAMANI M., ESFAHAEI M., HONARNEZHAD R., ALAH GHOLIPOUR M.. RELATIONSHIP BETWEEN GRAIN FILLING RATE, GRAIN FILLING DURATION, YIELD COMPONENTS AND OTHER PHYSIOLOGICAL TRAITS IN RICE (ORYZA SATIVA L.). WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES)[Internet]. 2007;10(4 (A)):213-225. Available from: https://sid.ir/paper/14751/en

IEEE: Copy

M. MOJTABAIE ZAMANI, M. ESFAHAEI, R. HONARNEZHAD, and M. ALAH GHOLIPOUR, “RELATIONSHIP BETWEEN GRAIN FILLING RATE, GRAIN FILLING DURATION, YIELD COMPONENTS AND OTHER PHYSIOLOGICAL TRAITS IN RICE (ORYZA SATIVA L.),” WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), vol. 10, no. 4 (A), pp. 213–225, 2007, [Online]. Available: https://sid.ir/paper/14751/en

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