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转双基因抗虫烟草对烟夜蛾和小地老虎幼虫的抗性
引用本文:罗梅浩,杨铁钊,丁永乐,段增强,韩军霞.转双基因抗虫烟草对烟夜蛾和小地老虎幼虫的抗性[J].植物保护学报,1999,26(3):225-229.
作者姓名:罗梅浩  杨铁钊  丁永乐  段增强  韩军霞
作者单位:[1]华南农业大学植物病毒研究室 [2]茂名市农业局
基金项目:广东省农业委员会和农业部资助
摘    要:1992-1996年对水稻橙叶病的发生流行条件进行了广泛深入调查研究。结果证明,当地水稻品种全属感病和高感品种、人工接种发病率为40%-93.3%,只有几个新近引进或准备诉品种属抗病或高抗。秧苗尤以3-5叶龄期最易感病,6叶龄后抗耐病性逐渐增强,在分蘖盛期后病株基本死亡。

关 键 词:水稻  登叶病  发病条件  防治

ON THE RESISTANCE OF Bt AND CpTI DUALLY TRANSGENIC TOBACCO TO LARVAE OF ORIENTAL TOBACCO BUDWORM AND BLACK CUTWORM
Luo Meihao,Yang Tiezhao,Ding Yongle,Duan Zengqiang and Han Junxia.ON THE RESISTANCE OF Bt AND CpTI DUALLY TRANSGENIC TOBACCO TO LARVAE OF ORIENTAL TOBACCO BUDWORM AND BLACK CUTWORM[J].Acta Phytophylacica Sinica,1999,26(3):225-229.
Authors:Luo Meihao  Yang Tiezhao  Ding Yongle  Duan Zengqiang and Han Junxia
Affiliation:Henan Agricultural University, Zhengzhou 450002,Henan Agricultural University, Zhengzhou 450002,Henan Agricultural University, Zhengzhou 450002,Henan Agricultural University, Zhengzhou 450002 and Xinzheng Cigarette Factory, Henan Province, Xinzheng
Abstract:The occurrence of orange-coloured leaf disease of rice, a phytoplasma disease, was investigated widely during 1992 - 1996. The results indicated that the local cultivated rice cultivars were all susceptible or highly susceptible. The incidence after artificial inoculation was 40% -93. 3%. Some newly introduced or bred cultivars were resistant to the disease. Seedlings at 3 - 5-leaf stage were the most susceptible. The tolerance to the disease increased after 6-leaf stage. Diseased plants died after the peak time of tillering stage. The symptom did not show up after tillering stage but the diseased plants could become the primary source of the disease for the early season rice in the next year. The disease occurred early and was more serious in late season rice. Postponed sowing date could reduce the severity of the disease. Control of the vector, a leafhopper, by spraying four times during the growth period presented good control efficacy to the disease.
Keywords:orange-coloured leaf disease of rice  occurrence  control
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