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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。
Through the systematic observation of the accumulation of dry matter in organs of sesame 8809 and its parents (A and B), the Logistic equation of growth was simulated by microcomputer. The dominant growth performance of each organ was analyzed by the final growth, average growth and maximum growth intensity Perform dynamic analysis. The results showed that the growth curves of sesame hybrids and their parents showed “S” shape. In addition to the rhizomes, the inflexion points of growth curves of all the hybrids were between the two parents. The final growth, the average growth intensity and the maximum growth In the aspect of intensity, the hybrids showed stronger advantages than the parents, and the growth superiority of hybrid whole plants and vegetative organs was more dominant than their reproductive growth. Between 53 and 64 days after emergence, the hybrid reproductive growth intensity was significantly higher than that of the parents.