共查询到19条相似文献，搜索用时 265 毫秒
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威优46－989是中国水稻研究所从大面积推广的三系杂交稻组合威代46中，通过纳会选优培育出农艺性状完全稳定了的可以自己年年留种的新型杂交水稻新品系。该品系1995年经中国水稻研究所与当前大面积种植的杂交稻汕优10号、汕优63、威代46、新香优63等23个组合和品种作对照进行大区品比试验，产量名列第一。比杂种一代成优46增产8．0％，比汕优10号增产12．5％，比汕优63增产8．6％。威代46－989株高95cm，茎杯粗壮，株型紧凑，叶片直立不披散，稳大粒多，平均每德比威优46多16粒。公顷产g可达9000kg，高产可达到11250kg．耐肥抗倒性特强，后… 相似文献
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杂交水稻新品种两优688在建瓯试种表现及栽培技术要点 总被引：1，自引：0，他引：1
两优688系南平市农科所用不育系SE21S与南恢688配组选育而成的优质晚稻新品种,于2009年2月通过福建省品种审定(闽审稻2009007).2006年省区域试验初试,平均产量497.88 kg/667m2.比对照汕优63增产13.6%,达极显著水平,居第1位.2007年省区试续试,平均产量470.12 kg/667m2,比对照汕优63增产9.65%,达极显著水平,居第1位.2008年引进福建省新品种中试基地的建瓯市小松湖头村生产示范种植,种植面积0.133 hm.,平均实割产量为573.10 kg,/667m2.比对照汕优63增产13.5%,表现产量高、综合抗性好.现将其在建瓯市的试种表现及栽培技术要点介绍如下. 相似文献
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《杂交水稻》1993,(2):38-39
杂交稻D297优67是一个中晚稻兼用的新组合。1992年10月,经福建省农作物品种审定委员会水稻专业组评审通过,并通过省级科技成果技术鉴定。1选育过程与试验经过 福建省尤溪县管前农技站于1986年用D297A与明恢63、67、72、78等恢复系配组,1987年将所配组合与汕优63进行品试;同时在管前村用D297优63、D297优67作单晚试种,与汕优63进行简比,结果D297优67居首位,亩产592kg,比汕优63亩增56.3kg,增产10.5%。表现出抗病性强,丰产性好、制种产量高等强优势。 1988～1989两年推荐参加三明市、尤溪县杂交晚稻新组合预试,比对照汕优63显著增产、抗病。… 相似文献
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岗优151，系江油市种子公司与四川省种子站合作育成的杂交中稻新品种。1995～1996年参加四川省区试，两年平均单产8501．Ikg／hm’，比对照汕优63增产4．64％，均名列第一。1997年通过四川省品种审定委员会审定。同年参加全国南方稻区中舢迟熟组区试，平均单产8822．Ikg／hm’，比对照汕优63增产3．l％，这显著，居参试杂交水稻品种的第一位。目前已被列为四川“省第四次当家品种更换的首推品种，今年组织全省示范8万hm’以上。同时，也被农业部列为全国南方稻区第三次更换当家品种汕优63的首选品种，已在云、贵、鄂、渝、皖、湘、闽、桂、… 相似文献
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迟熟三系杂交稻新组合Ⅱ优441 总被引：2，自引：0，他引：2
迟熟三系杂交籼稻新组合Ⅱ优441系湖南杂交水稻研究中心育成，2002年3月通过湖南省品种审定。该组合在区试和生产试种中表现株叶形态好，产量高，抗性强，米质较优，全生育期140.8d，比汕优63长2.8d，产量比汕优63增产2.97%-11.48%。适宜作一季稻种植。 相似文献
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MR365的香味遗传及在杂交稻育种中的利用 总被引：3，自引：0，他引：3
以ＭＲ３６５及其作香味供体育成的香稻不育系湘香２号Ａ、新香Ａ、湘香２号Ｓ与Ｖ２０Ｂ、Ｖ４１Ｂ、珍汕９７Ｂ、明恢６３等非香亲本杂交,采用ＫＯＨ溶液法测定杂交组合Ｆ１、Ｆ２、Ｂ１Ｆ１植株和Ｆ２米粒的香味表现,结果表明,ＭＲ３６５的香味遗传受１对隐性核基因控制。在杂交水稻育种中,利用ＭＲ３６５育成了几个香稻不育系,并选配出一批香型杂交稻组合,其中香优６３、新香优７７、新香优８０等高产优质组合已通过省级审（认）定,具有较好的应用前景。 相似文献
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To improve grain quality of the high-yielding hybrid rice in China, we introduced the aromatic rice MR365, an improved Indian cultivar with aroma and other desirable grain quality characters such as long grain and low chalkiness, from IRRI in 1984 and began to transfer its aroma and good quality characters into the existing maintainer lines with good combining ability but poor grain quality. In the meantime, we also conducted the research on the inheritance of aroma for increasing the breeding efficiency. Through years of research and breeding practices, two cytoplasmic male sterile (CMS) lines Xiangxiang 2 A and Xinxiang A and a series of quasi-aromatic hybrids mated from these aromatic CMS lines have been developed and released for commercial production in China. It was found that the inheritance of aroma in MR 365 and its derivatives including Xiangxiang 2 A, Xinxiang A and Xiang 2B S was controlled by one pair of recessive major genes based on the identification of aroma by the KOH-soaking method. We also found that there existed disparity in aroma degree among different grains of F2 generation, and different aromatic CMS lines derived from the same aromatic donor such as Xiangxiang 2 A and Xinxiang A had also a little difference in the degree of aroma, which implies that, besides the major genes, aroma may also be affected by the genetic backgrounds or minor genes. Xiangxiang 2 A, developed from the cross of V20A∥V20B/MR365, is the first aromatic CMS line bred in China. It is not only aromatic but has good grain quality and combining ability. Using it as female parent, Xiangyou 63 (Xiangxiang 2A/Minghui 63), the first quasi-aromatic hybrid rice combination in China, was developed and approved to release to farmers in 1995. Xiangyou 63 is characteristic of quasi-aromatic or partially aromatic (because only a portion of or NOT ALL grains are aromatic), good grain quality, high-yielding ability, good blast resistance and wide adaptability. However, Xiangxiang 2 A has an evident drawback, i.e., instablility in male sterility under higher temperature conditions resulting from the existence of restoring minor genes in it, which greatly hampered the extension of its elite hybrid Xiangyou 63 with both high yield and fine quality in commercial production. To improve Xiangxiang 2 A, we made hybridization of Xiangxiang 2 B with V20 B again in 1990. A new aromatic CMS line Xinxiang A was successfully developed in 1994. It not only retains the favorable characteristics of Xiangxiang 2 A in grain quality and combining ability, but also expresses complete and stable male sterility and high seed production yield potential. Up to now, by using it as female parent, a series of quasi-aromatic hybrids have been developed. Some of them such as Xinxiangyou 63 (Xinxiang A/Minghui 63), Xinxiangyou 77 (Xinxiang A/Minghui 77), Xinxiangyou 80 (Xinxiang A/R80), Xinxiangyou 207 (Xinxiang A/R207) and Xinxiangyou 96 (Xinxiang A/R96) have been released to farmers. Such hybrids have been preferred and well welcome by the farmers in China, because they can not only yield higher or as high as but also possess a better grain quality than the current common high-yielding hybrid rice varieties, especially, they are naturally-mixed aromatic rice so that it can be consumed daily just like non-aromatic common rice. The planting area under these hybrids is increasing rapidly in China. It is expected that the quasi-aromatic hybrid rice will have a good prospect in the coming years. 相似文献
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Xiangyou 63 was developed at HHRRC using aromatic cytoplasmic male sterile line Xiangxiang 2A and non-aromatic restorer line Minghui 63. It was released to farmers in Jan 1995. Xiangyou 63 is the first quasi-aromatic hybrid rice in China, and Xiangxiang 2A, developed from the cross V20A∥V20B/MR365 by HHRRC, is the first aromatic CMS line in China. The hybrid has so far been planted on more than 20 000 hm2 and seems popular with farmers and consumers. In addition to being aromatic, the hybrid has good grain quality, high-yielding ability, good disease resistance, and wide adaptability. 相似文献
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Xinxiangyou 77 was developed at HHRRC using aromatic cytoplasmic male sterile line Xingxiang A and nonaromatic restorer line Minghui 77. It was extensively tested and approved for release to farmers by the Hunan Provincial Crop Variety Release Committee in February, 1997. Xingxiang A, improved from the first aromatic CMS line Xiangxiang 2A, is another aromatic CMS line developed by HHRRC. The new line has stable male sterility and better outcrossing characteristics than Xiangxiang 2A. 相似文献
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Xinxiangyou 77 was developed at HHRRC using aromatie cytoplasmic male sterile line Xingxiang A and nonaromatic restorer line Minghui 77. It was extensively tested and approved for release to farmers by the Hunan Provincial Crop Variety Release Committee in February,1997. Xingxiang A, improved from the first aromatic 相似文献
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籼型优质香稻不育系绵香1A的选育与应用 总被引：1，自引：1，他引：0
绵香1A是四川绵阳市农业科学研究所以印水型不育系优1A为母本、菲改B香/改B的F2代优良单株为父本测交,并经多代择优回交转育而成的籼型香稻不育系。该不育系育性稳定,农艺性状优良,米质优,所配组合产量高。绵香1A于2004年8月通过四川省技术鉴定,配制的组合绵香576（绵香1A辐/恢576）于2006年通过四川省农作物品种审定委员会审定,国豪国香8号（绵香1A/绵恢725）于2008年通过安徽省农作物品种审定委员会审定。 相似文献
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抗稻瘟病新组合威优111的选育 总被引：2，自引：2，他引：0
威优１１１是用Ｖ２０Ａ与新恢复系ｙ１１－１配制而成。具有产量高、米质较优、高抗稻瘟病、耐寒、抗倒、秧龄弹性好、制种产量较高等特点。１９９９年２月通过湖南省农作物品种审定委员会审定。 相似文献