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

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.