摘要
宁夏水稻生产模式正由20世纪90年代的旱育稀植向直播栽培模式转变,同时,宁夏水稻面积采用"压南扩北"的战略,要求宁夏银川北部盐碱地直播水稻的面积逐步增大,而银川北部土壤盐渍化严重影响着宁夏水稻单产和种植面积。实践表明,培育耐盐碱水稻新品种是进一步提高盐碱地水稻产量和扩大种植面积的最有效方法。笔者就开展宁夏耐盐碱水稻新品种培育的必要性、宁夏耐盐碱水稻新品种选育技术路线创新、回交群体的耐盐碱鉴定与筛选以及耐盐碱新品系示范推广的经济效益进行了全面阐述和分析。
Rice planting in Ningxia has shifted from dry-nursery and sparsely-planting developed in 1990 s to direct-sowing.Meanwhile, the strategy of shrinking rice planting in the south and expanding in the north requires the continuous expanding of direct sowing rice in saline soils in north Yinchuan, Ningxia, and the saline soils can exert great impact on rice yield and planting. It has shown from practice that cultivation of new breeding of saline-tolerance rice can be the most effective method in further increasing rice yield and planting. Comprehensive analysis on necessity and innovation of cultivation of new breeding of saline-tolerance rice, evaluation and selection of saline tolerance of backcross crops and economical return of new breeding were mentioned in this paper.
出处
《宁夏农林科技》
2015年第12期53-54,共2页
Journal of Ningxia Agriculture and Forestry Science and Technology
基金
科技部863项目绿色超级稻新品种选育(2014AA10A601-6)
国家科技支撑计划项目耐盐碱水稻新品种选育(2015BAD01B02-3)
比尔及梅琳达.盖茨基金项目(51587-18)
关键词
水稻
耐盐碱
品种选育
经济效益
宁夏
Rice
Saline tolerance
Cultivation of new breeding
Economical return
Ningxia
