摘要
【目的】由葛藤集壶菌(Sychytrium puerariae Miy)侵染引起的葛拟锈病危害植株叶片、叶柄和茎蔓,导致这些部位生长发育畸形,茎生长缓慢,块根发育受阻,严重影响葛根产量。了解广西葛根产区葛拟锈病的发生情况,以便寻找有效防控措施。【方法】于2018—2019年对课题组选育的4个葛根品种在广西各地推广区域的拟锈病发生情况进行调查。【结果】不同品种葛根在产区的病情指数在0~50.31之间,品种间差别较大,大叶药用型桂葛18号为高抗品种,病情指数在0~0.16之间,平均病情指数为0.04;大叶加工型桂葛8号为中感品种,病情指数在18.00~50.31之间,平均病情指数为31.98;大叶加工型桂葛17号和小叶菜用型桂葛1号为中抗品种,病情指数分别在0.10~30.79和6.20~30.83之间,平均病情指数分别为16.48和16.77。【结论】桂葛18号发病严重度明显低于桂葛8号,同一品种葛根组培脱毒种苗发病严重度明显低于扦插苗。
【Objective】The pseudo-rust disease caused by Sychytrium puerariae Miy infected the leaves,petioles and stems of Pueraria lobata,resulting in malformation of these tissues and slow growth of stems and tuberous roots,which severely affected the yield P.lobata.The investigation was conducted to understand the occurrence of pseudo-rust in P.lobata producing areas of Guangxi and find out effective control measures.【Method】The occurrence of pseudorust of four P.lobatas varieties bred by the research group was investigated in the promotion areas of Guangxi in 2018—2019.【Result】The results showed that the disease index(ID)of different Pueraria varieties in the producing areas was between 0-50.31,and there were great differences among varieties.The large leaf medicinal type Guige 18 was a high resistant variety,with ID of 0-0.16 and average ID of 0.04.The large leaf processing type Guige 8 was a moderately susceptible variety,with ID of 18.00-50.31 and average ID of 31.98.Both of the large leaf processing type Guige 17 and small leaf vegetable type Guige 1 were moderately resistant varieties,with IDs of 0.10-30.79 and 6.20-30.83 and average IDs of 16.48 and 16.77,respectively.【Conclusion】The disease severity of the Guige 18 was significantly lower th an that of the Guige 8.And the disease severity of issue culture virus-free seedlings of the same variety was significantly lower than that of cutting seedlings.
作者
潘睿扬
袁高庆
何龙飞
肖冬
王爱勤
PAN Ruiyang;YUAN Gaoqing;HE Longfei;XIAO Dong;WANG Aiqin(College of Agriculture,Guangxi University,Nanning 530004,China)
出处
《广东农业科学》
CAS
2019年第12期83-88,共6页
Guangdong Agricultural Sciences
基金
国家现代农业产业技术体系广西薯类创新团队首席专家(nycytxgxcxtd-11-01)
广西科学研究与技术开发计划项目(桂科重1298001-3-1)
南宁市重点研发计划项目(20162094)
关键词
葛根
拟锈病
葛藤集壶菌
病情调查
抗性
Pueraria lobata
pseudo-rust disease
Synchytrium puerariae
disease investigation
resistance
