摘要
在不同播前土壤储水条件下,应用抗旱指数法、隶属函数法、模糊综合评判法研究了14个不同生态类型旱地冬小麦品种的抗旱性。结果表明,随着播前土壤储水的增加,旱地冬小麦产量和水分利用效率显著提高,相同土壤储水条件下品种之间产量与水分利用效率差异显著,不同生态型冬小麦对播前土壤储水的反应明显不同。抗旱指数法、隶属函数法、模糊综合评判法均能较好地评价旱地冬小麦的抗旱性,其评价结果基本一致。不同地区参试品种抗旱性表现为:甘肃陇东>山西地区>北京地区>渭北旱塬>黄淮地区。
Under different soil-stored water levels,the drought-resistance of 14 dryland winter wheat varieties of different ecological types was researched by means of drought-resistance index,subordinate function values and fuzzy synthetic determination. It is shown that the yield and WUE of dryland winter wheat are improved significantly along with the increasing of soil-stored water before sowing. Under the same soil-stored water level,there is a remarkable difference of the yield and WUE among different varieties. And the reaction to soil-sorted water of different ecological types of winter wheat is different. The drought-resistance of dryland winter wheat can be evaluated excellently by the three methods of droughtresistance index, subordinate function values and fuzzy synthetic determination. The results are basically consistent. Droughtresistance of the tested varieties from different regions appears as East Gansu 〉 Shanxi 〉 Beijing 〉 Weibei Highland 〉 Huanghuai Plain.
出处
《中国生态农业学报》
CAS
CSCD
2007年第2期59-62,共4页
Chinese Journal of Eco-Agriculture
基金
国家"十五"攻关课题(2004BA508B09)
"863"节水专项课题(2002AA2Z4011)子课题"抗旱节水小麦新品种筛选与应用"部分研究内容
关键词
土壤储水
旱地
冬小麦
抗旱性
Soil-stored water, Dryland,Winter wheat,Drought-resistance
