黄淮海地区大豆种质资源抗旱性鉴定及其研究

以产量、单株荚数、单株粒数、分枝数和株高作为评定抗旱性的指标.采用综合评定法,对黄淮海地区11省(市、区)5071份大豆种质资源进行田间抗旱性鉴定。鉴定出1级高抗类型资源393份,2级中高抗类型资源614份、3级中抗类型资源805份。其中来自山西的大豆种质资源中,1级、2级抗旱类型资源为332份,占到1级、2级类型总数的32.9%,初步认为山西是黄淮海地区大豆抗旱种质的分布中心。

Studies and Evaluation on Drought-tolerans of Soybean Germplasm from Huang-Huai-Hai Valleys

Five thousands and seventy one soybean germplasms from Huang-Huai-Hai valleys (elevenprovinces) were evaluated their drought-tolerance at Dun Huang Gansu province.The annual rainfall is not greater than 50mm.The field test consisted of the drought and irrigation treatments. The evaluation results show that the variety number of higher tolerance (1) and tolerance (2) are respectively 393 and 614.Among the 1 and 2 grade there was 332 varieties belong to Shanxi province,32.9 percent of the total of 1 and 2.Therefore,it is considered that Shanxi is the center of dronght-tolerance of soybean germplasms in Huang-Huai-Hai valleys.