We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Development and evaluation of multi-genotype varieties of rice derived from MAGIC lines.
- Authors
Li, Xiao-Fang; Liu, Zhi-Xia; Lu, Dong-Bo; Liu, Yan-Zhuo; Mao, Xing-Xue; Li, Zhi-Xin; Li, Hua-Jun
- Abstract
Multi-genotype varieties can effectively alleviate or reverse the decline of genetic diversity in agriculture caused by the predominant extension of mono-genotype (pure line) varieties of crop plants. We devised a novel breeding strategy for developing multi-genotype varieties of rice from MAGIC lines, which were derived from two convergent crosses among 8 or 12 parental lines, respectively. We found that both multi-genotype varieties and varietal mixtures were superior to their component lines/varieties in both yielding and blast-resistance performances. When the multi-genotype varieties were developed through intensive selection, they displayed comparable or better performance in yielding level and disease resistance in comparison to current leading mono-genotype varieties of rice. A promising multi-genotype variety has been selected over a 2-year regional trial in Hainan province and it will be hopefully granted a varietal-release permit. Multi-genotype breeding may be an alternative and feasible solution to the sustainable development of agriculture.
- Subjects
HAINAN Sheng (China); RICE genetics; GENOTYPE-environment interaction; RICE breeding; PLANT genetics; SUSTAINABLE agriculture
- Publication
Euphytica, 2013, Vol 192, Issue 1, p77
- ISSN
0014-2336
- Publication type
Article
- DOI
10.1007/s10681-013-0879-1