摘要
选用26个小黑麦品种(系),在西北高寒农牧交错区的不同试点和供水条件下,利用GGE双标图法研究了小黑麦基因型与环境互作效应以及稳产性。结果表明:在自然干旱条件下,小黑麦平均籽粒产量为1805.5 kg/hm2,较普通小麦对照增产54.6%;在灌水条件下,小黑麦平均产量为7196.1 kg/hm2,较对照增产67.2%。基因型间、环境间及G×E存在着极显著的差异,环境和G×E对产量的影响远大于基因型,分别为基因型效应的25.9倍和2.1倍。不同小黑麦基因型的产量稳定性、对水分的敏感性和生态适应性差异很大,抗旱性强的基因型约占7.7%,具有高产、稳产、适应性广特性的基因型占15.4%。同时也发现有些基因型对特定的环境具有特殊适应性,筛选出了适合旱地种植的基因型7个,适合保灌条件种植的基因型9个。
Genotype × environment interactions（G × E） and grain yield stability of 26 spring triticale cultivars（lines） were analyzed using GGE biplot（genotype main effects plus genotype × environment interaction） model under different water supply conditions and locations in the alpine farming-pastoral ecotone of Northwest China.Results showed that average grain yield of triticale under natural drought conditions was 1805.5 kg/hm^2,increased by 64.5% compared with common wheat control cultivar,and the average yield under irrigation condition was 7196.1 kg/hm^2,increased by 67.2% compared with control.Extremely significant differences were observed among genotypes,environments and G × E.The effects of environments and the G × E on the yield were larger than that of the genotypes,which were up to 25.9 times and 2.1 times compared to the effect of genotype,respectively.The yield stability,water sensitivity and ecological adaptability of different genotypes showed considerable great difference.The genotypes with strong drought resistance accounted for 7.7% of total tested genotypes of triticale,the genotypes with high yield,good stability and wide adaptability were 15.4% of total tested genotypes.However,some genotypes had specific adaptability to the limited environments,and seven genotypes adapted to drought condition and the nine genotypes adapted to sufficient irrigation condition were selected or suggested.
出处
《核农学报》
CAS
CSCD
北大核心
2011年第1期155-161,184,共8页
Journal of Nuclear Agricultural Sciences
基金
农业科技跨越计划项目(2008跨35)
公益性行业(农业)科研专项经费项目(200903007-07)
作者简介
柴守玺（1962-），男，甘肃会宁人，教授，博士生导师，主要从事作物生态生理的研究。E—mail：sxchai@126．com
通讯作者：常磊（1980-），男，甘肃通渭人，博士研究生，主要从事作物生态生理的研究。E-mail：ehang3258@126．com
