[Objective] The paper was to select different fungicides for field efficacy test against pear scab in summer.[Method] Five treatments were designed in the test,including 10% difenoconazole WDG 6 000 times dilution,50%...[Objective] The paper was to select different fungicides for field efficacy test against pear scab in summer.[Method] Five treatments were designed in the test,including 10% difenoconazole WDG 6 000 times dilution,50% captan WP 600 times dilution,30% pyraclostrobin SC 2 000 times dilution,430 g/L tebuconazole 4 000 times dilution,and water(control).[Result] 10% Difenoconazole WDG 6 000 times dilution,50% captan WP 600 times dilution,30% pyraclostrobin SC 2 000 times dilution,430 g/L tebuconazole SC 4 000 times dilution had good control effects against pear scab,and the efficacies were 89.13%-93.51%.[Conclusion] The results will provide the theoretical basis for field control of pear scab in summer.展开更多
为了解梨黑星病抗性遗传规律并为梨黑星病抗性育种早期选择提供理论依据,以新苹梨(梨黑星病抗性品种)×雪花梨(梨黑星病易感品种)的杂交后代为试材,进行了田间自然感病和棚内接种梨黑星病(Venturia nashicolaTanak et Yamamota)病...为了解梨黑星病抗性遗传规律并为梨黑星病抗性育种早期选择提供理论依据,以新苹梨(梨黑星病抗性品种)×雪花梨(梨黑星病易感品种)的杂交后代为试材,进行了田间自然感病和棚内接种梨黑星病(Venturia nashicolaTanak et Yamamota)病菌后的抗性调查,并进行了AFLP分子标记的研究。结果表明,棚内接种梨黑星病菌后,杂交后代抗感分离规律符合双假测交的遗传规律;研究建立的AFLP分子标记体系可以用于梨黑星病的抗性基因标记,并初步找到了与梨黑星病抗性基因相关的分子标记。展开更多
基金Supported by Youth Fund Project of Hebei Academy of Agriculture and Forestry Sciences(2018020101)Science and Technology Plan of Hebei Province (16246327D)Special Financial Project of Hebei Province (F18R1908,2019-3-5-2)。
文摘[Objective] The paper was to select different fungicides for field efficacy test against pear scab in summer.[Method] Five treatments were designed in the test,including 10% difenoconazole WDG 6 000 times dilution,50% captan WP 600 times dilution,30% pyraclostrobin SC 2 000 times dilution,430 g/L tebuconazole 4 000 times dilution,and water(control).[Result] 10% Difenoconazole WDG 6 000 times dilution,50% captan WP 600 times dilution,30% pyraclostrobin SC 2 000 times dilution,430 g/L tebuconazole SC 4 000 times dilution had good control effects against pear scab,and the efficacies were 89.13%-93.51%.[Conclusion] The results will provide the theoretical basis for field control of pear scab in summer.
文摘为了解梨黑星病抗性遗传规律并为梨黑星病抗性育种早期选择提供理论依据,以新苹梨(梨黑星病抗性品种)×雪花梨(梨黑星病易感品种)的杂交后代为试材,进行了田间自然感病和棚内接种梨黑星病(Venturia nashicolaTanak et Yamamota)病菌后的抗性调查,并进行了AFLP分子标记的研究。结果表明,棚内接种梨黑星病菌后,杂交后代抗感分离规律符合双假测交的遗传规律;研究建立的AFLP分子标记体系可以用于梨黑星病的抗性基因标记,并初步找到了与梨黑星病抗性基因相关的分子标记。
