CAJ | 학술논문

为了鉴定玉米自交系对丝黑穗病的抗性，研究抗病力遗传效应，采用人工接种鉴定法，研究评价了72份玉米自交系对丝黑穗病的抗性。其中高抗系18个，占25％，抗病系15个，占20．8％，中抗系12个，占16．7％。玉米对丝黑穗病的抗性遗传属细胞核遗传，无正反交差异。F1和F2的发病率介于双亲之间，无超亲优势，F1与抗病亲本回交的后代基本表现为抗病，与感病亲本回交后代表现为感病。要选育中抗以上类型杂交种，其双亲之一必须为抗病系，其杂交方式有：高抗×高抗、高抗×抗病、高抗×中抗、抗病×抗病、抗病×中抗。
위료감정옥미자교계대사흑수병적항성，연구항병력유전효응，채용인공접충감정법，연구평개료72빈옥미자교계대사흑수병적항성。기중고항계18개，점25％，항병계15개，점20．8％，중항계12개，점16．7％。옥미대사흑수병적항성유전속세포핵유전，무정반교차이。F1화F2적발병솔개우쌍친지간，무초친우세，F1여항병친본회교적후대기본표현위항병，여감병친본회교후대표현위감병。요선육중항이상류형잡교충，기쌍친지일필수위항병계，기잡교방식유：고항×고항、고항×항병、고항×중항、항병×항병、항병×중항。
The resistance of 72 maize inbred lines to head smut of maize was assessed using the artificial inoculation method for identifying the resistance of maize inbred lines to head smut of maize and studying resistance＇s genetic effect. The results showed that 18 of those lines were highly resistant, 15 lines were resistant and 12 were middle resistant, the percentage was respectively 25%, 20.8% and 16.7%. The inheritance of maize resistance was controlled by nuclear,and there was no difference in reciprocal cross. The incidence of F1 and F2 was in the middle of their parents, with no super advantage compared the parents, descendants of F1 and the parent were resistant,and crossed with sensitive lines could generate resistant lines. So to breed hybrid with middle or high resistance,one of the parents must be the high resistant line, and the cross ways should be ： HR×HR; HR×R; HR×MR; R×R; R×MR.