论文部分内容阅读
油桐十个品种、家系,近三年的观察试验,表明仍然有一定程度的物候型差异。以种源湘、桂、川和浙的序往后推移。由于展叶、叶面积增大,花序伸长和开花的速率差异有先花后叶、先叶后花、同步型之别,全林花期22天左右。梢、果及果实各组成部分的生长发育因品种而异,并且受气候因子和营养状况的影响。测定了自交、异交、自由交配的受精率均在80％以上,相互间亲和力较高。花、果序结构主要是指分枝、级数和分枝顶花的性别及果量的变化有一定规律,品种间有明显差异。
Tung tree ten species, family, observation and test in the past three years, indicating that there is still a certain degree of phenotypic differences. The source of Hunan, Guangxi, Sichuan and Zhejiang order later move. As a result of leaf expansion, leaf area increased, the rate of inflorescence elongation and flowering first flower after the first leaves, after the first flower, the same type of synchronization, the whole flowering of about 22 days. The growth and development of shoot, fruit and fruit components varies according to breed and is affected by climatic factors and nutritional status. Fertilization rates of selfing, outcrossing and free mating were all above 80%, with high affinity for each other. Flower, fruit structure mainly refers to the branches, the number of flowers and the top of the flowers and the amount of gender changes have certain rules, there are significant differences between varieties.