论文部分内容阅读
用传统的植物育种方法改良葡萄柚品种受珠心胚干扰和繁殖杂合体困难的限制。即便在控制授粉的条件下,获得合子胚和有性实生苗也仅仅是偶然的.品种改良主要靠选择自然突变体。Hensz 最近评述了在得克萨斯州通过自然突变培育红肉葡萄柚品种的工作.辐射处理可以提高柑桔突变的频率。Hens-(1971)通过辐射处理福斯特葡萄柚多核选系“Hudson”的种子培育出了无核葡萄柚“StarRuby”。tiearn(1984)发现福斯特葡萄柚种子比
The traditional method of plant breeding to improve grapefruit varieties by the Pearl of the embryo interference and propagation of hybrid difficulties. Even in the control of pollination, access to zygotic embryos and sexual seedlings is only by chance.Cultivation mainly by the selection of natural mutants. Hensz recently reviewed the work that breeds red meat grapefruit varieties in Texas through natural mutations that increase the frequency of citrus mutations. Hens- (1971) Seedless grapefruit “StarRuby” was grown by radiation treatment of Forster grapefruit multi-nuclear lineage “Hudson” seeds. Tiearn (1984) found that Forster grapefruit seed ratio