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当前位置: 首页 > 文章 > 两个新的水稻两用核不育系特征特性研究 作物研究 2018 (5) 349-353
Position: Home > Articles > Study on the Characteristics of Two New Dual-purpose Genic Male Sterile Lines of Rice Crop Research 2018 (5) 349-353

两个新的水稻两用核不育系特征特性研究

作  者：
尹晴;雷东阳;彭晨;陈广
关键词：
水稻;两用核不育系;农艺性状;异交特性
摘  要：
为明确新选育的水稻两用核不育系的农艺性状和异交特性,本试验以目前生产上大面积应用的两用核不育系C815S为对照,对新育成的两用核不育系阳S和浩S的特征特性进行研究。结果表明,阳S分蘖力强、株型紧凑、植株较矮、花时集中、不育起点温度低,综合性状优良;浩S每穗总粒数多、颖间距大、开颖历期长、柱头外露率高、柱头活力强,异交特性好,具备高产制种的潜力;但浩S不育起点温度偏高,有必要进一步筛选低不育起点温度的核心单株,确保生产上制种安全。
译  名：
Study on the Characteristics of Two New Dual-purpose Genic Male Sterile Lines of Rice
作  者：
YIN Qing;LEI Dongyang;PENG Chen;CHEN Guang;College of Agronomy,Hunan Agricultural University;
单  位：
YIN Qing%LEI Dongyang%PENG Chen%CHEN Guang%College of Agronomy,Hunan Agricultural University
关键词：
rice;;dual-purpose genic male sterile rice;;agronomic trait;;outcrossing characteristic
摘  要：
To clarify the agronomic traits and outcrossing characteristics of new selected rice dual-purpose genic male sterile lines,the characteristics of two newly developed dual-purpose nuclear sterile lines,Yang S and Hao S,were studied,the dual-use nuclear sterile line C815 S,which was widely used in the current production,was used as a control in this test. The results showed that Yang S had strong tillering ability,compact plant type,short plants,concentrated flower time,and low critical sterility temperature and good comprehensive characters; Hao S had more grain numbers per panicle,large glume distance,long glume-opening period,high rate of extruded stigma,stigma vigour vitality,good outcrossing characteristics,and potential for high-yielding seed production; But the sterility critical sterility temperature of Hao S is higher. It is necessary to further screen the core single plants with low critical sterility temperature to ensure the safety of production and seed production.

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