摘要
对亚蔬中心(AVRDC)抗豆象育种2个回交第12代品系(BC12)及其回交亲本进行了豆象抗性评价和比较,结果表明:豆象在绿豆种子表面的产卵量及产卵率,BC12及其回交亲本之间无显著差异;第一代成虫羽化量、羽化率及种子受害量、种子受害率,BC12与其回交亲本存在显著差异(P<0.05)。相关分析结果表明:绿豆种子受害量和一代成虫羽化量成极显著正相关,种子受害量与成虫产卵量无相关关系。而成虫产卵量与一代成虫羽化量成极显著正相关。回交后代与其回交亲本比较分析显示:在种子受害量上,BC12与其回交后代存在极显著差异(p<0.01),这意味着 BC12确实存在抗豆象性能。
This experiment was carried out to evaluate AVRDC mungbean lines (BC12 generation) to bruchids resistance.Two BC12 mungbean lines' resistance to bruchids were checked,and their recurrent parents (KPS1,CN60) were compared.The result indicated that two BC12 lines and their recurrent parents had no significant difference in number of eggs laid (NEL) and rate of eggs laid (REL).However,the differences of the number of adults emergence (NAE),the rate of adults emergence (RAE),the number of seeds damaged (NSD) and the rate of seeds damaged (RSD) were highly significant.Correlation coefficient revealed that there were significant positive correlation between NEL and NAE,NAE and NSD.The comparison of BC12 lines and their recurrent parents showed NSD was especially significant,indicating BC12 (KPS1) and BC12 (CN60) really being resistant to bruchids.
