论文部分内容阅读
应用雄性不育育种体系的杂种棉花种子的生产,除了在有充裕廉价劳力可以利用的地方、以致人工去雄和传粉是经济的外,均要求昆虫充分传递可育的花粉。印度农场主每年大概种植800000公顷用人工授粉技术生产种子的杂种棉花,以几个陆地棉为材料,在大田范围内应用蜜蜂(Apis mellifera L.)已成功地完成了把陆地棉可育花粉(育性保持系B)传递给陆地棉细胞质雄性不育系植株(A 系)。在一些G.hirsutum×G.barbadense L.(陆地棉×比马棉)棉花品系的种间杂种中已发现了导致较高皮棉产量和改进纤维品质的经济上重要的杂种优势。如果可以获得足够播
The application of male sterile breeding system hybrid cotton seed production, in addition to having sufficient cheap labor available where artificial dehuaxing and pollination is economical, require insects to transmit fertile pollen. Indian farmers planted approximately 800,000 hectares of hybrid cotton seed using artificial pollination techniques each year. Using several upland cottons, the Apis mellifera L. field has successfully completed the cultivation of upland cotton fertile pollen ( Fertility maintenance line B) was transferred to upland cotton cytoplasmic male sterile line plants (line A). An economically important heterosis leading to higher lint yield and improved fiber quality has been found in interspecific hybrids of some G. hirsutum × G. barbadense L. (Upland cotton × Pima cotton) cotton lines. If you can get enough broadcast