PATH ANALYSIS FOR RICE GRAIN YIELD AND RELATEDTRAITS IN TOW PLANTING PATTERN

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SABORI H.; REZAEI A.; MEYBODI M.; ESFAHANI M.

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Journal: Journal of Water and Soil Science Year:2005 | Volume: | Issue: Page(s): 129-141

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Title

PATH ANALYSIS FOR RICE GRAIN YIELD AND RELATEDTRAITS IN TOW PLANTING PATTERN

Author(s)

SABORI H. | REZAEI A. | MEYBODI M. | ESFAHANI M. | Issue Writer Certificate

Keywords

CORRELATIONQ3

EFFECTIVE GRAIN FILLING PERIODQ3

GRAIN FILLING RATEQ3

GRAIN YIELDQ4

PATH ANALYSISQ4

RICEQ4

YIELD COMPONENTS.Q4

Abstract

An experiment was conducted at Rasht RICE Research Institute, in 2001 to study trait relationships and to determine the direct and indirect effects of different characteristics on GRAIN YIELD of RICE (Orgza saliva L.). A 9x2 factorial experiment in complete randomized block design with 3 replications was used. The two factors were 9 cultivars, namely: Hashemi, AliKazemi, Binam, Sepeedroud, Nemat, Khazar, Taichung, Chanto, and Usen, and 2 planting patterns (15x15 cm and 30x30 cm). Significant differences were detected among cultivars, between planting patterns, and their interaction effects. The direct effect of the number of panicles/m2 on GRAIN YIELD was positive and significant in both planting patterns and their combined analysis. Heading date had a positive and significant direct effect on the number of panicles/m2 in both planting patterns and their combined analysis. Only in 30x30 cm planting pattern, a positive CORRELATION was found between biomass at heading date and the number of panicles/m2. Grain weight per plant had a direct and positive effect on panicle weight in the 3 cases studied. Also, in all the cases studied, flag leaf area had positive direct effects on grain-weight per plant. Grain filling i"ate and EFFECTIVE GRAIN FILLING PERIOD increased in 30x30 cm planting pattern. Native cultivars demonstrated longer latent period. GRAIN FILLING RATE and effective grain filling period showed positive direct effects on GRAIN YIELD in both plantings. According to the results obtained, an increase in the number of panicles/m2,rate of grain filling, and effective grain filling period would enhance GRAIN YIELD. Selection for heading date, GRAIN YIELD per plant, and flag leaf area would also indirectly increase GRAIN YIELD.

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APA: Copy

SABORI, H., REZAEI, A., MEYBODI, M., & ESFAHANI, M.. (2005). PATH ANALYSIS FOR RICE GRAIN YIELD AND RELATEDTRAITS IN TOW PLANTING PATTERN. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), 9(1), 129-141. SID. https://sid.ir/paper/395121/en

Vancouver: Copy

SABORI H., REZAEI A., MEYBODI M., ESFAHANI M.. PATH ANALYSIS FOR RICE GRAIN YIELD AND RELATEDTRAITS IN TOW PLANTING PATTERN. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES)[Internet]. 2005;9(1):129-141. Available from: https://sid.ir/paper/395121/en

IEEE: Copy

H. SABORI, A. REZAEI, M. MEYBODI, and M. ESFAHANI, “PATH ANALYSIS FOR RICE GRAIN YIELD AND RELATEDTRAITS IN TOW PLANTING PATTERN,” WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), vol. 9, no. 1, pp. 129–141, 2005, [Online]. Available: https://sid.ir/paper/395121/en

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