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低不育起点温度(CSP)、高自繁育性和高的异交结实率对于水稻温敏核雄性不育系配制纯合的杂交种子和获得经济的自繁种子有重要意义。本研究分析了不同环境对这些性状选择效率的影响,结果表明,温敏核雄性不育系的雄性不育起点温度、自繁雄性可育性、柱头外露率和穗伸出率、生长势和适应性的选择效应受环境影响。在某种环境下遗传材料的这些性状过高的表达并没有导致高的区分度,因为在这种情况下性状在株间表现较整齐一致,温敏核雄性不育基因(tms)在高温下雄性不育性也表现相似的结果,因此认为有必要在适当有利于区分遗传型的环境下进行选择。在相对较低的温度条件下选择低的CSP和高的自繁雄性可育性有较高的选择效率;在较高的湿度条件下选择柱头外露较有效,而高的温度下选择穗的抽出率效率高,在相对低的土壤肥力环境下改良不育系的生长活力和适应性效率高。
Low starting temperature (CSP), high self-fertility and high outcrossed seed setting rate are important for the preparation of homozygous hybrid seeds and economical self-propagating seeds for thermo-sensitive genic male-sterile rice lines. In this study, the effects of different environments on the selection efficiency of these traits were analyzed. The results showed that the starting temperature, male fertile male fertility, stigma exsertion rate, panicle elongation, The effect of adaptation is affected by the environment. Under certain circumstances, the high expression of these traits in the genetic material did not result in a high degree of differentiation, since in this case traits performed more consistently across strains, and the temperature-sensitive nuclear male sterility gene (tms) Male sterility also showed similar results, so it is considered necessary to make the choice under suitable circumstances conducive to the differentiation of genetic type. Selective low-CSP and high self-bred male fertility at relatively low temperatures have a higher selection efficiency; selective stigma exposure is more effective at higher humidity, while selection of spikes at high temperatures High efficiency and high efficiency of growth and adaptability of CMS in a relatively low soil fertility environment.