冯爱卿1,黄显良2,江先芽2,陈 深1,伍尚信2,黄日亮2,曾列先1,朱小源1.水稻品种(组合)对稻黑孢霉菌的抗性评价[J].广东农业科学,2015,42(16):51-50 |
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水稻品种(组合)对稻黑孢霉菌的抗性评价 |
Resistance evaluation of rice varieties againstNigrospora oryzae(Berk.et Br.)Petch |
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DOI: |
中文关键词: 水稻品种 稻黑孢霉菌 抗性评价 |
英文关键词: rice variety Nigrospora oryzae(Berk.et Br.)Petch resistance evaluation |
基金项目:国家现代农业产业技术体系建设专项
(CARS-01-24);广东省现代农业产业技术体系建设专
项(粤财教[ 2009]356 号) |
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中文摘要: |
在稻黑孢霉菌常发病区广东阳江市白沙,对77 个水稻品种(组合)进行了抗稻黑孢霉菌自然
诱发鉴定,采用病情指数对品种抗性进行分级评价。结果表明:不同的水稻品种(组合)对该病原的抗感
性差异显著。高抗、抗、中抗、中感、感、高感的品种(组合)数分别为0、1、7、17、15、37 个。表现为中抗
以上的品种如五粤占2 号、粤澳占、乡意浓1 号、长优736、H 两优野占、新两优117 等,在田间的病情指数
均在20~30;而高感品种在田间的病情指数均在50 以上,如鹏稻2 号、湛黄占、合莉丝苗、粤标5 号、禅增
占、圳优21、美优丰占、II 优916 等,其中鹏稻2 号对稻黑孢霉菌表现高度感病,其病情指数达100,产量
损失严重。 |
英文摘要: |
The resistances of 77 rice varieties against Nigrospora oryzae(Berk.et Br.)Petch were evaluated
in disease nursery in Baisha,Yangjiang,Guangdong. The disease index was used for evaluating the disease
resistance of the tested entries. The results showed that there was significant difference of resistance against N.
oryzae among different varieties. There were 0,1,7,17,15 and 37 varieties showed high resistance(HR),
resistance(R),moderately resistance(MR),moderately susceptivity(MS),susceptivity(S)and high
susceptivity(HS)respectively. Some of the tested varieties showed more resistance with the disease index from 20
to 30,such as Wuyuezhan NO.2,Yueaozhan,Xiangyinong NO.1,Zhangyou 736,H Liangyouyezhan,Xinliangyou
117. However,some of the tested entries showed more susceptivity with the disease index over 50,such as
Pengdao NO.2.,Zhanhuangzhan,Helisimiao,Yuebiao NO.5,Chanzengzhan,Zhenyou 21,Meiyoufengzhan,
IIyou 916. The varietiy Pengdao NO.2 showed high susceptivity with the disease index of 100,and its whole plant
were damaged seriously by N. oryzae. |
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