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新疆长绒棉品种性状分析及其有关问题的探讨 总被引:1,自引:0,他引:1
1995-2013年,新疆省共审定长绒棉品种32个,其中民营种业育成品种比例有所增加。该期间审定的品种与1986-1995年间审定的品种相比,产量、长度、比强都有不同程度的提高。本文分析了目前新疆长绒棉育种取得的成绩和存在的主要问题,探讨了新疆长绒棉育种面临的问题,对新疆长绒棉优质、高产、抗病品种选育提出意见。 相似文献
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长绒棉作为特纺工业、军工产品以及纺高织纱产品的重要原料 ,在国民经济中占有不可替代的作用。为培育优质、高产、抗病的长绒棉品种 ,加快育种进程 ,南繁加代是必要的育种手段。我所经过几十年的南繁北育 ,先后育成 8个长绒棉品种。经过多年探索 ,总结出一套长绒棉南繁栽培技术。1 栽培环境海南省的西南部每年≥ 15℃的活动积温高达80 0 0~ 90 0 0℃ ,终年无霜 ,年平均日照百分率超过5 5 % ,且具备短日照条件 ;雨量充沛 ,年降水量在 15 0 0~ 2 0 0 0 mm之间 ;每年 10月至次年 3月的平均温度为2 3.1℃ ,变动趋向为高—低—高 ,是全国重要… 相似文献
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地处塔克拉玛干沙漠北缘的农一师农科所培育的丰产、稳产、优质的长绒棉新品系96-107,于2003年2月11日通过新疆维吾尔自治区农作物品种审定委员会审定,被命名为"新海21号",据了解,这是该所育出的第10个长绒棉品种. 相似文献
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农业部在新疆石河子一二一团培育长绒棉新品系获成功,并进行大面积种植,使长绒棉的种植纬度向北移了5度,将我国长绒棉种植区域扩大10倍,有望改善中国长绒棉长期以来大量依赖进口的局面。 相似文献
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新疆长绒棉育种的回顾与展望 总被引:1,自引:0,他引:1
1959-2015年新疆生产建设兵团第一师农业科学研究所先后培育出21个长绒棉品种。随着育种水平的不断提高,育成品种在产量、品质、抗病等性状上有较大程度的改善,并且优质、高产、抗病性得到更好的协调统一。以一师农科所历年培育的长绒棉品种结果为依据,总结了一师农科所长绒棉育种取得的成就,正确认识评价一师农科所长绒棉育种水平,提出了长绒棉育种应以继续提高产量和品质为核心,同时发展多抗、专用、机采等类型丰富的品种为重要内容的长绒棉育种方向。 相似文献
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重点介绍了长绒棉九棉27的杂交选育过程及特征特性,该品种2015-2016年参加新疆维吾尔自治区早熟长绒棉品种区域试验,2017年参加生产试验,2018年通过新疆维吾尔自治区农作物品种审定委员会审定。同时提出了配套的栽培管理技术措施,为大面积推广提供了可靠的科学依据。 相似文献
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新疆长绒棉新品系综合评价 总被引:1,自引:0,他引:1
为综合评价并筛选优良长绒棉新品系,运用主成分分析和灰色关联度分析,对在新疆经过初筛选的10份长绒棉新品系的16个性状进行综合评价。结果表明,基于主成分分析法的综合效益值变幅为-1.38~1.38,前4名优势品系为CRM-8(F=1.38),CRM-3(F=1.30),CRM-6(F=1.22)和CRM-1(F=0.93);基于加权法的关联度变幅为0.80~0.45,前4名优势品系为CRM-6 (γ=0.80)、CRM-8(γ=0.69)、CRM-1(γ=0.65)和CRM-3(γ=0.61)。基于两种评价方法的10份长绒棉新品系排名差异不显著,其相关系数达到0.915,说明评价长绒棉新品系的品质时,本研究所选的16项性状指标对棉花综合品质的评价重要性相当。杂交选育出的长绒棉新品系CRM-8、CRM-6、CRM-3和CRM-1排名靠前,有广阔的推广前景;CRM-2、CRM-7、CRM-9表现中等;CRM-10、CRM-4和CRM-5表现最差。 相似文献
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Huiping Zhou Hui Fang Soum Sanogo Sidney E. Hughs Don C. Jones Jinfa Zhang 《Euphytica》2014,196(3):437-448
Verticillium wilt (VW), caused by Verticillium dahliae Kleb, is one of the most destructive diseases in cotton (Gossypium spp.). The most efficient and cost-effective method of controlling the disease is the use of resistant cotton cultivars. Most commercial cultivars and elite breeding lines are developed under non-VW conditions and their responses to the disease are currently unknown. This study was conducted to evaluate current commercial cotton cultivars and advanced breeding lines for VW resistance. In 2011–2013, a total of 84 cultivars from major US seed companies, 52 advanced breeding lines from the US public breeding programs, and 87 introgression lines from a cross between Acala 1517-99 × Pima PHY 76 from the New Mexico Cotton Breeding Program, were evaluated for VW resistance in the greenhouse. Cotton cultivars and breeding lines were evaluated in ten separate replicated tests by inoculation with a defoliating-type isolate of V. dahliae. While leaf severity rating and percentages of infected plants, infected leaves and defoliated leaves were found to be significantly and positively correlated with one another, leaf severity rating and percentage of infected leaves were best choices because of their relatively low coefficients of variation and higher resolutions to differentiate resistant genotypes from susceptible ones. The heritabilities for the VW resistance traits ranged from 0.58 to 0.80 with an average of 0.67, indicating that variation in VW resistance is predominantly due to genetic factors. Of the 223 commercial cultivars and advanced lines, six Upland cultivars (FM 9160B2F, FM 9170 B2F, NG 4010 B2RF, Nitro 44 B2RF, DP 1219 B2RF, and ST 4288 B2F), five advanced lines (Ark 0403-3, MD 10-5, MD 25ne, NC11AZ01, and PD 0504), two introgression lines from Upland × Pima (NM11Q1157 and 08N1618), and four Pima cultivars (COBALT, DP 357, PHY 800, and PHY 830) had higher levels of resistance to VW. The resistance shown by most of these cultivars in the greenhouse was consistent with their performance in previous field tests. Based on the initial VW resistance, 19 highly or moderately resistant genotypes were chosen for re-evaluation and 30 genotypes were also assessed more than once for VW resistance in different tests, most of which had concordant performance. These cultivars and advanced lines should be useful resources to improve VW resistance in cotton breeding. 相似文献
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