...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Cytology and genetics >Development of Winter Wheat Starting Material Using Interspecific Crossing in Breeding for Increased Protein Content
【24h】

Development of Winter Wheat Starting Material Using Interspecific Crossing in Breeding for Increased Protein Content

机译：利用种间杂交育种提高蛋白质含量的冬小麦原材料的开发

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The results of developing new bread winter wheat starting material using interspecific crosses in breeding for increased protein content are presented. The study comprised 35 initial (2-4 crosses with modern cultivars) and 20 advanced (five and more crosses with modern cultivars) introgression lines of bread winter wheat, and nine genotypes characterized by increased relative protein content and groups of lines that combine relatively high indices of thousand grain weight or protein content with resistance to leaf or stem rust and alien glume hairiness were isolated. The significant effect of lines grouping for the number of crossings with modern cultivars on the productivity, protein content, and the sedimentation value, and the effect of cross combinations, in particular, sources of alien traits, on protein content and thousand grain weight were found. It is shown that higher protein content, observed at the backcrossing, does not always correlate with the improvement of flour quality. The improved lines showed a low frequency of combining the traits of high protein content, large grain size with high productivity, and grain quality. No correlation of the most-studied traits with protein content and weak positive correlation (r = 0.28*...0.30*) of thousand grain weight with both the quality characteristics, sedimentation and protein content, were found. The line productivity had negative correlation with protein content (r = -0.43*) in only one variant of the experiment. The lines B241_09, E2792_14, E1598_12, and Od.267b were isolated, which had relatively higher protein content and combined moderate resistance to certain diseases with relatively high indices of the productivity and sedimentation. The isolated lines are characterized by instable productivity and other properties in different environments and require improved stability of these characteristics. Created on the basis of cv. Odeska 267, the quasi-isogenic lines with resistance to leaf rust (E2363_14, E2368_14, and E2369_14) had higher productivity, protein content, and thousand grain weight than recurrent cv. Odeska 267 on a low agricultural background. Using interspecific hybridization and further complicated step crosses with the elements of recurrent breeding, it was not possible to integrate high productivity in optimal environments with tolerance to hard conditions of drought into one genotype.
机译：提出了使用种间杂交开发新的面包冬小麦起始材料以提高蛋白质含量的结果。该研究包括面包冬小麦的35个初始（与现代品种杂交的2-4个杂交种）和20个先进（与现代品种杂交的5个和更多个杂交种）渗入系，以及9个以相对蛋白质含量增加为特征的基因型和组合相对较高的系群分离出具有抗叶或茎锈病和外来颖毛毛羽的千粒重或蛋白质含量的指标。发现与现代品种杂交的品系分组对生产力，蛋白质含量和沉降值的显着影响，以及杂交组合，特别是外来性状的来源对蛋白质含量和千粒重的影响。结果表明，回交时观察到的较高的蛋白质含量并不总是与面粉质量的提高相关。改良品系表现出将高​​蛋白含量，大晶粒尺寸与高生产率以及谷物品质相结合的频率较低。没有发现研究最多的性状与蛋白质含量相关，而千粒重与质量特性，沉降和蛋白质含量均呈弱正相关（r = 0.28 * ... 0.30 *）。在该实验的仅一个变体中，品系生产力与蛋白质含量呈负相关（r = -0.43 *）。分离出了B241_09，E2792_14，E1598_12和Od.267b品系，它们具有相对较高的蛋白质含量，并且结合了对某些疾病的中等抗性，具有较高的生产力和沉降指数。隔离线的特点是在不同环境中的生产率不稳定和其他特性，因此需要提高这些特性的稳定性。基于cv创建。 Odeska 267是具有抗叶锈病性的准等基因系（E2363_14，E2368_14和E2369_14），其生产力，蛋白质含量和千粒重均高于常规cv。农业背景较低的Odeska 267。使用种间杂交和进一步繁杂的步骤与轮回育种的要素交叉，就不可能将在最佳环境中对干旱条件耐受的高生产力整合为一个基因型。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号