Mutation breeding of grain legumes |
| |
Authors: | A Micke |
| |
Institution: | (1) Plant Breeding and Genetics Section, Joint FAO/IAEA Division, Vienna, Austria |
| |
Abstract: | Genetic variation among existing cultivars and in germplasm collections is the outcome of selection during evolution and plant breeding. Mutagenesis offers the plant breeder a chance to tackle unconventional objectives, particularly those that were at a selection disadvantage in the past. Effective mutagens are available, but the bottleneck is the effective selection of rare desired variants from large mutagenized populations. Selection methods must be non-destructive. Grain legume mutation breeding has already led to improved cultivars with higher yield, better grain quality, or stronger resistance to pathogenens. Many mutations affecting nitrogen fixation related traits have also been reported. Some could be useful in breeding better cultivars, but the majority are being used to study the factors interacting in the complex process of symbiotic nitrogen fixation and to improve the strategy for producing cultivars with better fixation capacity. |
| |
Keywords: | grain legumes mutagenesis nitrogen fixation plant breeding |
本文献已被 SpringerLink 等数据库收录! |
|