高抗梨黑星病新种质4-34和8-80的筛选  

Selection of New Pear Germplasm 4-34 and 8-80 with High Resistance to Scab

作　　者：张海娥[1] 乐文全[1] 刘金利[1] 冉辛拓[1] 魏建梅[1] 吴雅琴[1] 

机构地区：[1]河北省农林科学院昌黎果树研究所,河北昌黎066600

出　　处：《河北农业科学》2011年第9期69-71,74,共4页Journal of Hebei Agricultural Sciences

基　　金：国家梨产业技术体系项目资助

摘　　要：梨黑星病是梨的主要病害之一,对梨生产造成了巨大损失。为选育抗黑星病种质,通过田间自然发病方法,从京白梨和鸭梨正反交群体中筛选出2株高抗梨黑星病的种质4-34和8-80,经过2006～2010年连续5 a的接种评价,发现其抗病性稳定。并对其生物学性状进行了调查。Pear scab was one of the important diseases of pear,which caused huge losses in pear production.Two pear germplasm 4-34 and 8-80 with high resistance to scab were selected from the population of the reciprocal cross between Jingbai pear and Ya pear by the method of natural infection in field.The resistance was stable after inoculation from 2006 to 2010.The biological characters of the two germplasm were investigated.

关 键 词：梨树 梨黑星病 抗病种质 筛选 分级标准 病情指数 

分 类 号：S661.2[农业科学—果树学]