共查询到19条相似文献,搜索用时 218 毫秒
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中百优华占是中国水稻研究所用中100A与华占组配育成的高产、优质、早熟杂交晚稻,2014年3月通过江西省品种审定。为更好地发挥中百优华占的高产制种潜力,笔者于2014-2015年夏季在浙江富阳开展了中百优华占高产制种技术的研究。本文主要介绍了中百优华占父母本的特征特性,提出了中百优华占高产制种的关键技术措施。 相似文献
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晶两优华占是袁隆平农业高科技股份有限公司、中国水稻研究所共同选育的籼型两系杂交水稻新品种,具有适应性广、产量高、抗病性强、耐低温等特点,2016年通过国家农作物品种审定。2015—2016年浦城县仙阳镇引进晶两优华占作为烟后稻种植,总结了晶两优华占作烟后稻种植表现及高产栽培技术。 相似文献
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欣荣优华占是由北京金色农华种业科技有限公司用欣荣A×华占选育而成的籼型三系杂交水稻品种。2014—2015年引进浦城作中稻机械化栽培,表现出生育期适中,耐肥抗倒,适应性广,产量高、稳产性好,米质优、食味佳等优点。总结了欣荣优华占在浦城作中稻机械化高产栽培技术。 相似文献
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优质高产抗病杂交晚稻中9优801的选育与应用 总被引:4,自引:2,他引:4
中9优801是江西农业大学农学院用中9A与优质抗病高配合力恢复系R801配组而成的籼型杂交晚稻新组合.该组合具有优势强、丰产性好、米质优、抗稻瘟病、再生力强、制种易获高产、适应性广等特点,于2003年3月通过江西省农作物品种审定委员会审定.介绍了其选育过程、特征特性、栽培及制种技术要点. 相似文献
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《Field Crops Research》2005,93(1):74-84
Seedling transplanting and plastic mulching are widely adopted intensive planting systems in cotton production in China. Manual removal of early- or late-season flowers may improve seed quality without sacrificing yield through the compensatory growth of cotton plants. Two experiments were conducted, in Yellow River Valley in China from 2002 to 2003, to test if the intensive systems and flower removal can be used for enhancing hybrid seed production. Results in the first experiment show that yields of seed cotton and seed, and seed quality parameters averaged across three plant densities (2.25, 3.00 and 3.75 plants/m2), were significantly improved by either transplanting or plastic mulching relative to conventional planting. The improvements in yield and quality in two intensive planting systems were mainly attributed to longer and earlier flowering period. Transplanted plants did not differ significantly from mulched plants in seed yield, seed maturity and percentage germination, but transplanting decreased lint percentage and increased seed index relative to mulching. In terms of seed yield and quality, the optimum plant density for each planting system was 3.00 plants/m2. At the optimum plant density, seed yields averaged across two years for transplanting and mulching systems were 31.3% and 32.6% higher than for conventional planting system, respectively. Flower removal did not significantly affect seed yield, but removal of late-season or both early- and late-season flowers significantly improved seed quality. It was concluded that transplanting or plastic mulching, low plant density (3.00 plants/m2), and removal of late-season or both early- and late-season flowers can be integrated to enhance yield and quality of hybrid seed of cotton. 相似文献
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杂交中籼卡优6206的选育和应用 总被引:1,自引:0,他引:1
用自育新质源不育系卡潭A与新恢复系绵恢6206 组配成的早中熟杂交中稻新组合卡优6206,具有熟期早、产量高、米质和抗性好、适应性广、易于繁制等特点,1997 年5 月通过四川省农作物品种审定委员会审定。 相似文献