论文部分内容阅读
一般都认为高产树降低了树体的营养生长,而稀疏的果实导致树体生长旺盛,尤其是幼树。以往的研究多用美国西北部少见的非短枝类型品种。Looney 等提出在某些短果枝品系中产量与枝条生长之间的关系可能是有差异的。本文提供的数据支持他的见解.1982年在华盛顿州温纳奇试验站。在大年选择12株8年生实生砧隔年结果的金矮生苹果树,树体
Generally, high-yield trees reduce the vegetative growth of the tree, whereas the sparse fruits cause the tree to grow vigorously, especially young trees. Previous studies mostly used rare varieties of non-spur type in the northwestern United States. Looney et al. Suggest that there may be differences in the relationship between yield and shoot growth in some short-limbed lines. The data provided in this article supports his opinion. 1982 Vennach Test Station, Washington. In the year of selection 12 annual 8-year-old rootstock annual results of gold dwarf apple trees, trees