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采用离体枝条分生孢子悬浮液和菌丝块接种测定了11种梨种质资源共211份材料对腐烂病的抗性。结果显示:不同种质资源对病菌的侵入和扩展的抵抗均存在差异,抗侵入的占17.5%,抗扩展的占35.1%;同一种质资源对病菌侵入与扩展的抵抗之间也有差异,对病菌侵入和扩展抵抗一致的占30.3%,不一致的占69.7%;所有供试材料中对病菌侵入和扩展均为高抗(HR/HR)的占1.4%,抗病(R/R)的占4.7%,中等(M/M)的占12.3%,感病(S/S)的占10.9%,高感(HS/HS)的占0.9%;通过综合抗性评价发现,‘大香水’、‘杜梨’、‘江岛’、‘康德’、‘龙泉酥’、‘苹果梨’、‘山梨’、‘云红1号’、‘早玉’和‘长十郎’为抗病(R/R)材料,‘新高’、‘武豆9号’和‘荆杜3号’为高抗(HR/HR)材料,‘新星’和‘新黄’为高感(HS/HS)材料。
A total of 211 accessions of 11 pear germplasm resources were tested for their resistance to decay disease by in vitro shoot suspension and mycelial inoculation. The results showed that there were differences in the resistance of germplasm to invasion and expansion of different germplasm resources, 17.5% of which were resistant to invasion and 35.1% of resistant to expansion. The resistance of the same germplasm to invasion and expansion of germs was also different, The rate of invasion and expansion of pathogenic bacteria was consistent with 30.3% and the inconsistent ones accounted for 69.7%. In all tested materials, invasion and expansion of pathogenic bacteria were high resistance (HR / HR) accounted for 1.4%, disease resistance (R / R) 4.7%, M / M accounted for 12.3%, S / S accounted for 10.9% and HS / HS accounted for 0.9%. According to comprehensive resistance evaluation, ’Ripei’, ’Longquancang’, ’Apple Pear’, ’Yamanashi’, ’Yunhong 1’, ’Zaoyu’ and ’Jurojuro’ were resistant to disease (R / R, HSV, Wuxiu 9 and Jingdu 3 were high HR / HR materials while Novo Nova and HSN were HS / HS materials.