【摘要】 芝麻各杂交组合杂种的分析结果表明:（1）F₁产量及其构成性状的杂种优势单株产量>每株蒴果数>千粒重>每蒴种子数;F₂虽有自交衰退现象,但仍保持一定的优势。（2）亲子之间在每蒴种子数和千粒重上呈显著正相关。（3）单株产量的增加主要依赖于每株蒴果数的提高,其次为每蒴种子数,而千粒重与产量关系不太密切。更多还原

【Abstract】 The analytical results indicate: （1） The heterosis of yield and its components have been expressed by F₁ hybrids: yield per plant> capsules per plant > 1000-seed weight seeds per capsule; F₂ hybrids appear inbreeding depression and still maintain a definite vigor. （2） The positively significant correlation was found between parents and offsprings in seeds per capsule and 1000-seed weight, and （3） The correlation between yield per plant and capsules per plant is closely related and the correlation between yield per plant and seeds per capsule the second, but the correlation between yield per plant and 1000-seed weight presents negative value. Some problems about heterosis have also been discussed.更多还原