摘要
通过三年多点试验，共鉴定早杂组合３６个，明确了当前江西省大面积种植的早杂组合“协优４９”、“优Ⅰ华联２号”、“协优华联２号”均表现出明显的相对抗性（与常规早稻品种相比），病情指数均低于３０，且组合之间差异不大，具有中抗性质。文末还就杂交早稻对纹枯病的抗性机制及其利用进行了讨论。
The resistance of 30 early hybrid rice combinations to sheath blight was identified. THe results indicated that Xieyou 49, Xieyouhualian 2 and Xianyouhualian 2 were moderate-resistant to sheath blight with disease indexes below 30 and litte difference among them, and had clear improvement comparied with the conventional early rice varieties Luhongzao 1 and Zhong 86-44. At last the paper discussed the mechanism of the resistance and its utilization in early hybrid rice.
出处
《江西农业学报》
CAS
1998年第4期51-56,共6页
Acta Agriculturae Jiangxi
关键词
杂交早稻
纹枯病
抗性鉴定
Early hybrid rice
Sheath blight
Resistance identification
