论文部分内容阅读
1961—1963年在山西汾阳南偏城进行了核桃多样性的研究,最后选出最优单株20株。本研究,主要观察以下各项: 1.不同年龄单株的产量,不同立地条件单株的产量,不同单株着花特性; 2.不同单株间核果品质的多样性:取仁难易、出仁率、壳厚度、含油率; 3.植株间形态特征的差异:核果大小、核果形状、壳面光滑度、种壳颜色、饱滿度等; 4.不同单株间物候期的多样性:萌动期、开花期、果实成熟期等; 5.不同单株间越冬性的差异。对选出的20株最优单株,按单株的性状、产量的分类、主要特征、经济价值及原属农家品种名称进行比较;并对其中10株的经济性状、生态习性进行了分析。最后提出了最优单株繁育和推广的意见。
1961-1963 in Shanxi Fenyang south of the city of walnut diversity research, the final selection of the best single plant 20. In this study, the main observations are as follows: 1. The yield of different age plants, the yield of different plants in different habitats, and the characteristics of different individuals; 2. The diversity of the quality of drupe in different plants: Kernel rate, shell thickness and oil content; 3. The differences in the morphological characteristics of the plants: the size of the drupe, the shape of the drupe, the smoothness of the crust, the color of the shell, the plumpness, etc. 4. The diversity of phenological periods : Germination, flowering, fruit maturity, etc .; 5 different between the winter of the differences. The 20 selected single plants were compared according to the traits of individual plants, the classification of the yield, the main characteristics, the economic value and the names of the original farm breeds; and the economic traits and ecological habits of 10 of them were analyzed. Finally put forward the best single plant breeding and promotion opinions.