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随着生产发展,一个新育成的小麦品种应该是“高产、优质、多抗、早熟”诸性状综合协调类型;育种方法需更多地采用复合杂交的方式;杂交亲本的选择也必定会趋向于着眼各种生态——地理上差异极大的类型。这些观点,已经或正在为我省小麦育种工作者所注重和采纳。正因为如此,在大量利用地理远距离材料、引进国外品种和其它生态远缘材料、采用冬春麦杂交中,极可能遇到一种国外学者已进行多年、大量研究,面对于我们还比较陌生的现象——当表型正常的亲本杂交时,F_1代却会发生植株生长迟滞,极端情况下甚至死亡的现象,即杂种坏死(Hybarid necrosis)。
With the development of production, a newly bred wheat variety should be a comprehensive coordination type of traits such as “high yield, high quality, multi-resistance, precocious”; breeding methods need to adopt more hybridization methods; and the selection of hybrid parents will also tend to Focus on a variety of ecological - geographically diverse types. These views have been or are being emphasized and adopted by the wheat breeding workers in our province. Because of this, in the large-scale use of geographic long-range materials, the introduction of foreign varieties and other eco-distant materials, the use of winter and spring wheat hybrids, is likely to encounter a foreign scholars have been for many years, a lot of research, in the face of we are still relatively new Phenomenon - When the phenotypic normal parent, F_1 generation of plant growth retardation occurs, in extreme cases and even death phenomenon, namely, hybrid necrosis (Hybid necrosis).