| Studies on the germplasm resource diversity of drought-resistant maize in Guizhou |
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| DOI：10.7606/j.issn.1000-7601.2007.03.01 |
| Key Words: maize germplasm resource drought-resistance diversity |
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| Abstract: |
| 23 drought-resistant germplasm were selected as study material from more than 1000 locale maize germplasms collected in Guizhou.11 characters including plant form,yield factor,ASI(time from scatter farina to take out thread) that relate to drought-resistance were studied.The result showed that there are abundant drought-resistant diversity in locale maize germplasm resource of Guizhou.Takeing drought-resistant index and drought-resistant coefficient as evaluation indicators,also considering their fertility and stability of yield,germplasms that showed fine character were Rongjiang Cihong,Luodian Juhuang,Wangmo Huang,Ziyun Jianzuihong,Wangmo Mashan Hong,Ziyun Huang and so on.Although this kinds of drought-resistance germplasm have a low absolute yield,their fertility and stability of yield under drought and infertile condition preceded crossbreed.Drought-resistant germplasms were mainly origin in low temperature,frequently drought,poor soil region,such as Wangmo,Luodian,Rongjiang,Ziyun and so on. |
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