| 柏光晓,赵致,邱红波.贵州玉米抗旱种质资源的多样性研究[J].干旱地区农业研究,2007,(3):1~6 |
| 贵州玉米抗旱种质资源的多样性研究 |
| Studies on the germplasm resource diversity of drought-resistant maize in Guizhou |
| |
| DOI：10.7606/j.issn.1000-7601.2007.03.01 |
| 中文关键词: 玉米 种质资源 抗旱性 多样性 |
| 英文关键词:maize germplasm resource drought-resistance diversity |
| 基金项目:贵州省优秀青年科技人才、贵州省科技基金项目 |
|
| 摘要点击次数: 142 |
| 全文下载次数: 97 |
| 中文摘要: |
| 以从贵州收集保存的1000多份玉米地方种质资源中筛选出的23份抗旱种质为材料,对其植株形态、产量因素、ASI(散粉与抽丝间隔时间)等11个性状进行田间观测,研究评价其抗旱适应性。结果表明:贵州玉米地方种质资源存在丰富的抗旱多样性。以抗旱系数和抗旱指数为主要评价指标,兼顾其稳产性和丰产性,表现优良的种质有:榕江刺红苞谷,罗甸桔黄苞谷,望谟黄苞谷,紫云尖嘴红包谷,望谟麻山红苞谷,紫云黄苞谷等。这类地方种质的绝对产量不高,但其稳产性和在干旱贫瘠条件下的丰产性优于杂交种。抗旱种质多来源于贵州省低热的望谟、罗甸、榕江、紫云等干旱频繁发生、土壤贫瘠的地区。 |
| 英文摘要: |
| 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. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| | |