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1997年,我站从湖南杂交水稻研究中心引进新香A种子,在我县金罗镇卫星村进行新香优63(新香A×明恢63)制种高产攻关试验.制种面积为6.7hm2,平均单产达3.08t/hm2,有6户1.03hm2平均产量过3.75t/hm2,卫星2组的孙际庆制种0.35hm2,总产1460.15kg,平均产量4.13t/hm2,其中800m2的一块田产量高达4.60t/hm2.现将其制种技术小结如下. 相似文献
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1999年开始在湖南永兴制种新香优80(新香A×R80),连续5 a累计制种86 hm2,平均单产3.6 t/hm2,最高达4.35 t/hm2.介绍了其双亲的特征特性,总结了主要高产制种技术措施. 相似文献
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三系杂交晚籼金优191(金23A/191)2001年在湖南资兴春制20 hm2,平均单产3.81 t/hm2,介绍了该组合的高产制种技术. 相似文献
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深95A不育系是由国家杂交水稻工程研究中心清华深圳龙岗研究所选育,2015年在邵武市大埠岗镇河源村秋繁,平均每667m~2产量184 kg,纯度达到99.8%以上。根据该亲本的特征特性以及秋繁制种的实践,介绍了其在邵武作"烟叶—秋繁"高产繁殖技术。 相似文献
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分别以保持先B和天B为受体和轮回亲本,以携带抗白叶枯病基因Xa23的育种材料P59为供体,通过杂交、回交和分子标记辅助选择,结合农艺性状表现和田间接种抗性鉴定,育成2个含有Xa23基因且抗白叶枯病的保持系先抗B和天抗B,再分别与先A与天A测交、成对回交,育成抗白叶枯病水稻不育系先抗A和天抗A,于2013年9月通过广西科技厅田间技术鉴定。这2个不育系具有败育彻底、农艺性状优良、异交结实率高和抗白叶枯病等特点,配制的杂交稻组合表现出明显的白叶枯病抗性和产量优势,具有较好的应用前景。 相似文献
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Potato breeding selections A66107-51 and A68113-4 (Solanum tuberosum gptuberosum) are being released as germplasm that is highly resistant to Verticillium wilt (Verticillium dahliae Kleb.) These selections have been extensively evaluated for resistance to Verticillium as measured by symptom severity and degree of colonization byV. dahliae. They combine outstanding wilt resistance with good tuber maturity characteristics, high yield, and french fry processing tuber type. A66107-51 has long-oblong, russeted tubers, with high yield and variable processing quality. A68113-4 has long-oblong, partially russeted tubers with high yield and good processing quality. Both selections are fertile as female parents, and A66107-51 is occasionally pollen fertile. The Verticillium resistance of these two clones has been transmitted to progeny. These selections were developed by USDA-ARS in cooperation with the Idaho Agricultural Experiment Station. Seed is available from USDA-ARS, Aberdeen, Idaho. 相似文献