| 小麦品种混播条件下条锈病发生、扩展研究 |
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| 引用本文： | 郭世保,黄丽丽,康振生,程晶晶,杨之为.小麦品种混播条件下条锈病发生、扩展研究[J].中国生态农业学报,2010,18(1):106-110. |
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| 作者姓名： | 郭世保 黄丽丽 康振生 程晶晶 杨之为 |
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| 作者单位： | 西北农林科技大学植物保护学院,陕西省农业分子生物学重点实验室,杨凌,712100 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)项目(2006CB100203)、国家科技支撑计划项目(2006BAD08A05)、教育部长江学者和创新团队发展计划项目(200558)、高等学校创新引智计划项目(B07049)、现代农业产业(小麦)技术创新体系建设专项资金 |
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| 摘 要： | 在田间分别设计6个小麦品种单播及其9个组合混播小区,研究条锈病在小麦混播群体中的发生、扩展情况及品种混播对条锈病的控制效果。结果表明,苗期品种混播小区发病中心的数量明显减少,条锈病发病中心越冬率达77.78%,单片病叶也可越冬。品种混播降低了条锈病传播距离,条锈病在各小区呈中心式分布。品种混播在孕穗期的相对防效为16.25%～58.89%,平均为35.31%。相对防效以"陕138"和"西农979"品种混播及"陕138"、"小偃22"和"西农889"品种混播最高,分别达58.89%和52.19%。品种混播对小麦条锈病有较好的控制效果,可作为生态防病措施之一。
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| 关 键 词： | 小麦条锈病 品种混播 相对防效 病害流行时间动态 |
| 收稿时间： | 2009/3/13 0:00:00 |
Occurrence and expansion of wheat stripe rust under mixed-cultivar planting |
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| GUO Shi-Bao,HUANG Li-Li,KANG Zhen-Sheng,CHENG Jing-Jing and YANG Zhi-Wei.Occurrence and expansion of wheat stripe rust under mixed-cultivar planting[J].Chinese Journal of Eco-Agriculture,2010,18(1):106-110. |
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| Authors: | GUO Shi-Bao HUANG Li-Li KANG Zhen-Sheng CHENG Jing-Jing and YANG Zhi-Wei |
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| Affiliation: | College of Plant Protection, Northwest A & F University; Shaanxi Province Key Laboratory of Agricultural Molecular Biology, Yangling 712100, China;College of Plant Protection, Northwest A & F University; Shaanxi Province Key Laboratory of Agricultural Molecular Biology, Yangling 712100, China;College of Plant Protection, Northwest A & F University; Shaanxi Province Key Laboratory of Agricultural Molecular Biology, Yangling 712100, China;College of Plant Protection, Northwest A & F University; Shaanxi Province Key Laboratory of Agricultural Molecular Biology, Yangling 712100, China;College of Plant Protection, Northwest A & F University; Shaanxi Province Key Laboratory of Agricultural Molecular Biology, Yangling 712100, China |
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| Abstract: | Six mono-cultivar planting treatments and nine mixed-cultivar planting treatments were designed to study the occurrence and expansion of wheat stripe rust (Puccinia striiformis f.sp.tritici) and control effect of mixed-cultivar planting.The results indicate that the number of foci at seedling stage obviously reduces under mixed-cultivar planting compared with mono-cultivar planting.Over-wintering rate of foci is 77.78% and a few single diseased leaves survive after winter.The spreading distance of stripe ru... |
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| Keywords: | Wheat stripe rust Mixed-cultivar planting Relative efficacy Epidemic temporal dynamics |
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