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Position: Home > Articles > STUDIES ON VARIETAL CHARACTERISTICS IN CULT1VARS OF ORYZA SATIVA Ⅰ. The Heritability, Correlation and Path-analysis of Characters of IR-varieties Planted in Guangzhou Journal of South China Agricultural University 1985 (2) 1-8

水稻品种种性研究——Ⅰ.IR品种在广州种植下性状的遗传力、性状相关和通径分析

作  者:
伍时照;吴璧文;黄超武
单  位:
农学系作物遗传育种研究室
摘  要:
结果表明:在广州早晚季种植的国际水稻研究所育成的IR品种,广义遗传力有相似的倾向,出穗日数、株高、千粒重、10粒谷长、10粒谷宽、谷长宽比均较高。单株穗重遗传变异系数较大。性状相关系数的显著性测定,早晚季趋势相似。相关和通径分析表明:每穗实粒数、有效穗数和千粒重与单株穗重呈正相关,尤以每穗实粒数无论直接作用或间接作用贡献最大。
译  名:
STUDIES ON VARIETAL CHARACTERISTICS IN CULT1VARS OF ORYZA SATIVA Ⅰ. The Heritability, Correlation and Path-analysis of Characters of IR-varieties Planted in Guangzhou
作  者:
Wu Zhizhao Wu Biwen Huang Chaowu (Wong Chiumoo) (Crop Research Laboratory of Genetic and Breeding, Department of Agronomy)
摘  要:
Varietal characteristic studies on IR-varieties of rice planted in Guangzhou during the first and second seasons indicated that in the broad sense it showed the same tendency towards heritibilities. Days of heading, height of plant, weight of 1000-grains, length of 10-grains, width of 10-grains and ratio of length-width all exhibited high heritabitities. Coefficients of hereditary variation on panicle weight per plant had a wide variance. Estimation for significant correlation coefficient among characters showed a uniform tendency in both two seasons. Correlation and path-analysis indicated that full-grain numbers per panicle,effective panicle numbers per plant and 1000-grain weight were positively and significantly correlated with panicle weight per plant. Full-grain numbers per plant showed the greatest effect on panicle weight per plant both directly and indirectly.

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