| 摘要: |
| 对XZ系列杂种小麦及其亲本分别进行了抗生性、耐害性和不选择性测定。在控制条件下，蚜虫生殖生命表测定结果表明，XZ13母本的抗生性比对照品种弱；杂种小麦的抗生性低于其父母本，表明杂种小麦在抗生性上无明显的杂种优势；控制条件下的试验结果具有较高的可信度。耐害性测定结果表明，无蚜害处理、有蚜害处理与未处理三者间差异显著；杂种小麦XZ1的耐害性明显大于XZ13，两者也明显大于其他品种。选择性试验结果表明，蚜虫对杂种小麦具有极强的喜好性，选择性极强；杂种小麦对蚜虫的抗生性虽较弱，但耐害性极强，从而以强耐害性获得高产。若在育种中加强抗生性指标和不选择性指标的选择，杂种小麦的产量可能还会上一个台阶。 |
| 关键词: 杂种小麦 麦长管蚜 抗生性 耐害性 不选择性 |
| DOI： |
| 分类号:S641.203.6 |
| 基金项目:陕西省自然科学基金资助项目(97SM01)；杨陵农业生物育种中心专项基金资助项目(1999-B2-17) |
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| The study on the resistance of hybrid wheat varieties XZ and its series to Macrosiphuim avenae |
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LI Xiao-dong 1,LIU Ling 2,CHEN Hang 2,CHENG Zhi-hui 1,LI Xiao-dong 1,LIU Ling 2,CHEN Hang 2,CHENG Zhi-hui 1,LI Xiao-dong 1,LIU Ling 2,CHEN Hang 2,CHENG Zhi-hui 1
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| Abstract: |
| The antibiosis,tolerance and nonpreference of hybrid wheat varieties and its series were tested.Life table of M.avenae on wheat varieties was studied,it shows that rm of female parent of XZ13 is 0.467 8,higher than that of Shaan229,which is 0.453 1,so the antibiosis of the former on aphid is not so good.The tolerance test results are shown that the tolerance of XZ1 is the best,and XZ1>XZ13.The results of nonprefernce test show that the aphid has much favorite to hybrid wheat varieties.So,though the aphid has much favorite to hybrid wheat varieties and antibiosis of the wheat varieties on aphid is weak,but they have very good tolerance,so they get higher yield. |
| Key words: hybrid wheat varieties Macrosiphum avenae antibiosis tolerance to pests nonpreference |
