Breeding strategies for improving rice yield - a review.
Breeding strategies for improving rice yield - a review.
复制标题
DOI：
10.4236/as.2015.65046
复制
发表时间：
2015-01-01
期刊：
影响因子：
--
通讯作者：
Dar, S. A.
中科院分区：
文献类型：
--
作者：
Khan, M. H.;Dar, Z. A.;Dar, S. A.
提高产量始终是包括水稻在内的任何作物育种计划的主要目标之一。然而，可以为这一作物确定许多目标，其重要性因地区和国家而异，甚至在一个特定国家内也是如此。提高粮食产量潜力是几乎所有水稻育种计划的主要目标。主要的影响是与发展新的战略，以提高品种的遗传粮食产量潜力。水稻育种者在改良作物方面非常成功。一些里程碑是半矮秆品种、新的水稻株型和杂交水稻对绿色革命的贡献。用于改良水稻的主要育种方法是系谱法，但杂交种的开发和群体改良也被添加到育种者的组合中。育种者一直在利用生物技术工具来提高他们的育种能力;然而，许多项目仍在努力解决如何将其整合到育种项目中，以及如何平衡传统和现代工具之间的资源分配。
An increase in productivity is always one of the main goals of any crop breeding program including rice. However, many goals can be identified for this crop varying in importance from region to region, country to country, and even within a given country. Increase in grain yield potential is the major goal of almost all rice breeders programs. The major impacts are related to the development of new strategies to increase the genetic grain yield potential of the varieties. Rice breeders have been very successful in improving the crop. Some milestones are the contribution to the green revolution with the semi-dwarf varieties, the new rice plant type and hybrid rice. The main breeding method used to improve rice is the pedigree, but development of hybrids and population improvement are added to the breeder's portfolio. Breeders have been taking advantage of biotechnology tools to enhance their breeding capacity; however, many programs are still struggling on how to integrate them into the breeding programs and how to balance the allocation of resources between conventional and modern tools.