...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Crop Research >Heterosis studies for yield in diverse seasons in forage maize
【24h】

Heterosis studies for yield in diverse seasons in forage maize

机译：饲用玉米不同季节产量的杂种优势研究

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 utility of heterosis per se may not be of much use, but cross combinations showing excellent hybrid vigour can be used in developing high yielding forage hybrids in maize crop. The present investigation was conducted at Main Forage Research Station, Anand Agricultural University, Anand during kharif, 2003, rabi 2003 and summer 2004. The experimental material consisted of 45 F(1)s, their 10 parents and check variety African Tall. They were sown in randomized complete block design with three replications. The hybrids were evaluated to know the extent of heterosis over mid parent, better parent and over check variety African Tall. Maximum heterosis was observed during rabi, 2003 season. For green forage yield per plant, maximum relative heterosis (90.53%) and standard heterosis (10.76%) were observed in the hybrid EC-286987 x Mex. Acc. 6356. While the maximum heterobeltiosis (68.96%) was observed in the hybrid Mex. Acc. 6344 x EC-286987 during rabi season. The hybrid EC-286987 x Mex. Acc. 6356 also recorded the highest relative heterosis (136.68%) and standard heterosis (27.92%) for dry matter yield per plant. This hybrid was identified as potential hybrid for widespread cultivation and commercial exploitation. This cross may be advanced for superior genotypes and selected genotypes may be intermated to map up fixable genetic variance.
机译：杂种优势的效用本身可能用处不大，但是显示出优异杂种活力的交叉组合可用于开发玉米作物中高产的饲用杂种。本研究在2003年海里夫，2003年狂犬病和2004年夏季在阿南德阿南德农业大学的主要饲料研究站进行。实验材料包括45个F（1），10个亲本和检查品种非洲高大。他们被播种在随机完整块设计中，重复了三遍。对杂种进行了评估，以了解中亲本，更好亲本和检查品种African Tall的杂种优势程度。在2003年的狂犬病季节观察到最大的杂种优势。对于每株植物的绿色饲草产量，在杂交EC-286987 x Mex中观察到最大相对杂种优势（90.53％）和标准杂种优势（10.76％）。累积6356.在混合Mex中观察到最大异源骨病（68.96％）。累积在狂犬病季节中出现6344 x EC-286987。混合EC-286987 x Mex。累积6356还记录了每株植物干物质产量的最高相对杂种优势（136.68％）和标准杂种优势（27.92％）。该杂种被确定为广泛种植和商业开发的潜在杂种。对于更好的基因型，可以提前进行此杂交，并可以选择选定的基因型以定位可固定的遗传变异。

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