荀萍,唐东玲,段海明,余利,余海兵.22个玉米杂交组合对禾谷镰孢菌茎基腐病的抗性[J].湖南农业大学学报:自然科学版,2019,45(5):.
22个玉米杂交组合对禾谷镰孢菌茎基腐病的抗性
  
DOI:
中文关键词:  玉米杂交组合  禾谷镰孢菌  茎基腐病  抗性
英文关键词:maize hybrid  Fusarium graminearum  stalk rot  resistance
基金项目:科技部重点研发计划项目(2018YFD0300902);国家农作物品种区域实验站奖补项目(1701r07010008);安徽省高校省级自然科学研究重点项目(KJ2017A512);安徽省大学生创新创业训练计划(S201910879045)
作者单位
荀萍,唐东玲,段海明,余利,余海兵 安徽科技学院农学院安徽 凤阳 233100 
摘要点击次数: 52
全文下载次数: 20
中文摘要:
      采用电钻打孔法接种禾谷镰孢菌,测定22个玉米新杂交组合对禾谷镰孢菌茎基腐病的抗性。结果表明:玉米新组合中,有6个表现为抗性1级,15个表现为抗性2级,1个表现为感病;玉米杂交组合接种禾谷镰孢菌后,大部分组合的穗重、粒重下降,部分组合秃尖长度增大,行粒数减少,对出籽率、穗长、穗行数的影响较小;2个玉米组合的抗病补偿能力较强,其中2×372组合未接种的穗重和粒重分别为186.8 g和165.5 g,接种后穗重和粒重减少8.7 g和8 g,15H037×1090 组合2次接种的穗重、粒重平均值分别达172.9 g和153.7g,比未接种的穗重和粒重增加12.3 g和9.3 g,2个玉米组合的产量超过对照郑单958,具有较高的应用潜力。
英文摘要:
      The resistance of 22 new maize hybrid combinations to Fusarium graminearum stalk rot was determined by electric drilling method. The results showed that 6 combinations showed resistance grade 1 and 15 combinations showed resistance grade 2, while 1 combination showed susceptibility. After inoculation with Fusarium graminearum, the ear and grain weight decreased in most combinations, and the bald tip length increased and the number of grains per row decreased in some combinations, but seed yield, ear length and ear row number were less effected. The disease resistance compensation ability of the two maize combinations was strong, the ear weight and grain weight of 2 × 372 combination uninoculated were 186.8 g and 165.5 g respectively, which were decreased in inoculated 2 × 372 combination by 8.7 g and 8 g, respectively. The average ear weight and grain weight of 15H037 × 1090 combination inoculated were 172.9 g and 153.7 g, respectively, which were respectively 12.3 g and 9.3 g higher than that of uninoculated 15H037 × 1090 combination. The results showed that the yield level in inoculation and non-inoculation treatment of the above two maize combinations were higher than that of Zhengdan 958, showing high application value of the two maize combinations.
查看全文  查看/发表评论  下载PDF阅读器
关闭
Copyright © 2008 《湖南农业大学学报》自然科学版 地址:湖南 长沙市 芙蓉区 
邮编:410128 电话:0731-84638380 0731-84618035 0731-84617599 0731-84673730 E-mail: zkb4618035@hunau.net  京ICP备09084417
分享按钮