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当前位置: 首页 > 文章 > 芝麻杂种优势的生长解析 华北农学报 1992,7 (3) 26-31
Position: Home > Articles > The Analysis of the Growth of Sesame Heterosis Acta Agriculturae Boreali-Sinica 1992,7 (3) 26-31

芝麻杂种优势的生长解析

作  者：
卫文星;丁法元;李开军
单  位：
河南省芝麻研究中心
关键词：
芝麻;杂种优势;Logistic方程
摘  要：
通过对芝麻杂种8809及其亲本(A和B)各器官干物质积累的系统观测,用微机模拟出各自的Logistic生长方程,以最终生长量、平均生长强度和最大生长强度对各器官的优势表现进行动态分析。结果表明,芝麻杂交种及亲本各器官的生长曲线均呈“S”型;除根茎外,杂交种各器官生长曲线拐点均介于两亲本之间,在最终生长量、平均生长强度和最大生长强度方面,杂种均比亲本表现出较强优势,而且杂种整株和营养器官的生长优势比其生殖生长优势更强。在出苗后53～64天之间,杂种生殖生长强度显著高于两亲本。
译  名：
The Analysis of the Growth of Sesame Heterosis
作  者：
Wei Wenxing Ding Fayuan Li Kaijun(Sesame Research Centre of Henan Province, Zhengzhou 450002)
关键词：
Sesame; Heterosis; Logistic equation
摘  要：
The dry matter accumulation in the organs of a sesame hybrid, cross 8809, and its parents was observed during their growth period in this study.Their Logistic growth equations were simulated with, a micro-computer. The dynamic analysis of the heterosis of all organs was performed by three indexes i.e. the top weight, the average growth rate and the top growth rate. The result showed that growth curves of all organs of the hybrid and the parents were of a "S" shape,and the turning points of the growth curves for the organs except the stem and roots of the hybrid distributed between those of the 2 parents. All these three indexes of the hybrid were superior to those of its parents, and the superiority of the whole-plant growth and the vegetative growth was even stronger than that of the reproductive growth. 53 to 64 days after emergence of seeds, the reproductive growth rate of the hybrid was significantly higher than those of the parents, and this period was the most important period for the reproductive growth of the hybrid.

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