| 赤霉素对稻秆抗瘟性影响的分析 |
| |
| 引用本文： | 黎起秦,陈育新,韦绍兴.赤霉素对稻秆抗瘟性影响的分析[J].广西农业生物科学,1990(1). |
| |
| 作者姓名： | 黎起秦 陈育新 韦绍兴 |
| |
| 作者单位： | 广西农学院植保系，广西农学院植保系，广西农学院植保系 |
| |
| 摘 要： | 赤霉素对稻秆抗瘟性的影响主要与表皮结构和生理生化有关。稻株喷洒赤霉素后,稻秆节间伸长,表皮硅化细胞数目减少,角质层和表皮层的厚度变薄,利于稻瘟病菌的入侵;同时,稻秆体内的总糖含量和过氧化物酶活性下降,还原糖占总糖的百分含量增加,有利于入侵稻秆体内的稻瘟病菌的生长与扩展。
|
| 关 键 词： | 赤霉素 稻秆抗瘟性 水稻 |
AN ANALYSIS ON EFFECT OF GIBBERELLIN ON RESISTANCE OF RICE STALK TO RICE STALK BLAST |
| |
| Li Qiqin Chen Yuxin Wei Shaoxing.AN ANALYSIS ON EFFECT OF GIBBERELLIN ON RESISTANCE OF RICE STALK TO RICE STALK BLAST[J].Journal of Guangxi Agricultural and Biological Science,1990(1). |
| |
| Authors: | Li Qiqin Chen Yuxin Wei Shaoxing |
| |
| Institution: | Dept.of Plant Protection |
| |
| Abstract: | The result of the trial indicated that the effect of gibberellin on rice stalk resistance to rice stalk blast caused by Pyricularia oryzae Car.was related to its effect on epidermal structure of rice stalk.The number of silicificed cells and thickness of cuticle in the epidermis of rice stalk were reduced after treated with gibberellin,therefore the rice blast fungi could easily penetrate to the rice stalk.In addition,the effect of gibberellin on resistance to the disease was related to its effect on biochemistry and physiology of rice stalk.After treated with gibberellin,the content of reducing sugar in total sugar(%)increased,but the content of total sugar and activity of peroxidase decreased.It favoured the growth of rice blast fungi in the rice stalk. |
| |
| Keywords: | gibberellin resistance of rice stalk to rice stalk blast rice |
| 本文献已被 CNKI 等数据库收录！ |
|
