论文部分内容阅读
在研究分析的14个组合、166个组合次中,呈正向优势者115个,占69.28％,其中51个为超亲优势,占30.72％,表现负向优势的46个,占27.71％,其中13个为超亲优势,占7.83％,表现无显性的5个,占3.01％。花生的杂交优势地上部较地下部显著。单株产量和含油量的优势指数一般介于双亲之间,但不同的杂交组合之间差异很显著,表明选用配合力高的亲本,对于获得高产和高油分的杂种优势组合是很重要的。亲本相同,杂交组合搭配方式不同,其杂交优势差异也较显著。普通型大花生与珍珠豆型小花生杂交的八个组合,包括正反交,用珍珠豆型小花生作母本的四个组合,比作父本的四个组合的单株产量和单株结果数的平均优势都显著的高。表现了较明显的母本效应。这一结果对于选配结实率高的高产组合具有重要作用。
Of the 14 combinations and 166 combinations analyzed, 115 were positive and accounted for 69.28% of the 14 combinations, of which 51 were super-parents, accounting for 30.72% and 46 of them representing negative predominance (27.71%), of which, Thirteen were super-pro-dominant, accounting for 7.83%, showing no dominant 5, accounting for 3.01%. Peanut hybrid superiority was significantly higher than the lower part. The dominant index of per plant yield and oil content is generally between parents, but the differences among different hybrid combinations are significant, indicating that selection of parents with high combining ability is very important for obtaining heterosis combinations with high yield and high oil content. The same parents, hybrid combinations with different ways, the differences in hybrid advantages are more significant. Eight combinations of common peanut and pea pea hybrids, including reciprocal crossing, four combinations of pea pea as female parent, and four combinations of male pea The average number of outcomes is significantly higher. Performance of the more obvious female effect. This result plays an important role in the selection of high-yield combinations with high seed setting rate.