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近来,育种者越来越注意应用诱变因素的新方法来创造原始材料,旨在大大地增加原来的变异性和扩大人工选择的机会。在各种作物上,应用化学诱变剂已获得很多有经济价值的突变体,如:早熟的、迟熟的、抗真菌病害及提高了种子内蛋白质含量的豌豆类型;下部豆荚的结荚部位较高的菜豆;早熟双果穗和矮生类型的玉米;籽棉和纤维产量高的大棉铃棉花突变体;高产、早熟、不倒伏的大麦和小麦品系;矮秆大穗、籽粒透明度高的早熟小麦;高产抗倒伏、抗条锈病和白粉病的冰草—小麦杂种类型;短藤早熟没有雄花的黄瓜;叶片颇绉的迟熟莴苣突变体;味道鲜美和干物质含量高的草霉,等等。
Recently, breeders are increasingly paying attention to new ways to apply mutagenic factors to create raw materials that are designed to dramatically increase variability and increase opportunities for manual selection. In a variety of crops, the use of chemical mutagens has yielded many economically valuable mutants such as: precocious, late-maturing, anti-fungal diseases and pea types with increased protein content in the seeds; the pod site of the lower pods High-yielding beans; premature double-ear and dwarf maize; cotton bolls and cotton bolls with high fiber yield; barley and wheat lines of high yield, precocious, non-lodging; dwarf big spikes, ; Wheatgrass-wheat hybrids with high yielding lodging resistance, stripe rust resistance and powdery mildew; cucurbit without early male flowers with short vines; late-maturing lettuce mutants with leafy leaves; grassy mildew with high flavor and dry matter content, etc. .