Genetic Diversity of Agronomic Traits in Advanced Breeding Lines of Rice (Oryza Sativa)

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NABIPOUR ALIREZA; NOROUZI MOHAMMAD

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Journal Paper

Paper Information

Journal: JOURNAL OF CROP BREEDING Year:2019 | Volume:11 | Issue:30 Page(s): 178-187

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Information Journal Paper

Title

Genetic Diversity of Agronomic Traits in Advanced Breeding Lines of Rice (Oryza Sativa)

Author(s)

NABIPOUR ALIREZA | NOROUZI MOHAMMAD | Issue Writer Certificate

Keywords

Cluster analysisQ2

Genetic diversityQ2

Path analysisQ2

RiceQ2

Abstract

Successful reorganization of Rice genetic structure to improve grain yield needs extensive information on the traits that influence yield, either directly or indirectly, and the amount of their Genetic diversity. In order to assess the Genetic diversity of some agronomic traits among the promising lines of Rice and their relation to yield, twenty lines along with a superior local check (Fajr) were evaluated under randomized complete blocks with 3 replications at Rice Research Station, Amol, in 2011. Studied traits included number of tillers, panicle length, paddy and grain length, paddy and grain width, plant height, grain shape, number of grains, percentage of filled and empty seeds, thousand grain weight and grain and paddy yield. The results of analysis of variance revealed highly significant differences among the genotypes for all the traits except for grain width. Comparison of means suggested that the lines NA5, NA17, NA9 had higher yields than the other lines. NA5 was also superior in terms of seed weight and grain length. Grain yield had significant correlation with grain length, 1000-grain weight and plant height; however the strongest correlation with yield was related to 1000-grain weight. Based on stepwise regression, plant height and grain weight were entered into Path analysis, where grain weight had higher direct and indirect effects than plant height. Therefore, grain weight would be an appropriate criterion for selecting high-yielding genotypes. Cluster analysis using WARD method grouped the lines into 4 clusters.

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APA: Copy

NABIPOUR, ALIREZA, & NOROUZI, MOHAMMAD. (2019). Genetic Diversity of Agronomic Traits in Advanced Breeding Lines of Rice (Oryza Sativa). JOURNAL OF CROP BREEDING, 11(30 ), 178-187. SID. https://sid.ir/paper/181021/en

Vancouver: Copy

NABIPOUR ALIREZA, NOROUZI MOHAMMAD. Genetic Diversity of Agronomic Traits in Advanced Breeding Lines of Rice (Oryza Sativa). JOURNAL OF CROP BREEDING[Internet]. 2019;11(30 ):178-187. Available from: https://sid.ir/paper/181021/en

IEEE: Copy

ALIREZA NABIPOUR, and MOHAMMAD NOROUZI, “Genetic Diversity of Agronomic Traits in Advanced Breeding Lines of Rice (Oryza Sativa),” JOURNAL OF CROP BREEDING, vol. 11, no. 30 , pp. 178–187, 2019, [Online]. Available: https://sid.ir/paper/181021/en

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