黄淮海地区大豆抗旱种质资源的多样性研究

 研究选用来自黄淮海地区大豆抗旱种质资源５０份，通过成熟期的产量构成因素分析在该因素形成时期大豆材料的抗旱性，发现大豆抗旱种质资源在不同生育期的抗性具有多样性，有些材料表现为全生育期抗旱，有些材料只在某个或几个生育时期表现抗旱；有的材料表现为抗旱高产，但有的材料产量水平较低，同时也发现一些抗旱种质资源在对照（水）条件下有较大的增产潜力。

Diversity in Soybean Germplasm with Drought Resistance in Huang-Huai-Hai Valleys

In this study, fifty soybean germplasms with drought resistance selected from Huang-HuaiHai Valleys were analyzed in field drought condition. The results showed that there were diversity in drought resistance at different development stages. Some varieties had drought resistance in whole growing period, but some only at one stage or several stages. Some varieties had both resistant drought and higher yield characters, some with resistant drought, but lower yield. It was also found in present study that some resistant drought germplasms showed higher yield potentials under irrigation condition.