草业科学2009，Vol.26Issue(7)：133-136,4.
玉米黑束病产量损失及品种抗病性鉴定
Yield loss and identification of variety resistance to black bundle of maize
郝铠 1孟有儒2
作者信息
- 1. 张掖市农业科学研究院,甘肃,张掖,734000
- 2. 河西学院,甘肃,张掖,734000
- 折叠
摘要
Abstract
The resistant and susceptible varieties of maize to Acrimonium strictum had different yield. Infected plants could not form female ears or decreases of grain number per ear and 1 000-grain-weight. The average yield loss was up to 66.0%. The yield loss for disease tolerant variety was mainly caused by the decrease of grain number per ear, and the average yield loss was 14.7%. Soil inoculation test was applied to 1 382 maize accessions in 2005 and 2006. It was showed that 1 097 accessions or 79.3% were not infected, 5 were highly resistant and another 5 were resistant accessions, each accounting for 0.36%; 15 accessions were disease tolerant and accounting for 1.08%; 27 (2.0%) were sensitive accessions; 233 accessions or 16.9% were highly sensitive. Meanwhile, preliminary study was conducted on the relationships between the content of stem reductive sugar, total phosphorus, total nitrogen, coarse protein and disease resistance of varieties.关键词
玉米黑束病/产量损失率/抗病性Key words
Acrimonium strictum of maize/ yield loss/ disease Resistance分类
农业科技引用本文复制引用
郝铠,孟有儒..玉米黑束病产量损失及品种抗病性鉴定[J].草业科学,2009,26(7):133-136,4.
