‘苹果梨’杂交后代部分性状遗传倾向研究

为了提高苹果梨产品的优势，克服其弱点及提高梨树育种工作的研究水平，以‘苹果梨’为中心的7个杂交组合、228株实生树为试材，进行了各组合亲本和后代的性状分析，探讨了各主要性状的遗传趋势。结果表明，‘苹果梨’杂种后代可溶性固形物含量的遗传传递力平均为100.3%，趋近于亲中值。果实风味出现较高比例的是酸甜、甜酸和甜，‘苹果梨’与脆肉杂交后代中没有分离出软肉类型，‘苹果梨’与软肉类型杂交后代都以脆肉类型为主，‘苹果梨’杂种后代果汁含量较亲本有降低的趋势。因此，‘苹果梨’的优良果实经济性状遗传力较强，作为育种亲本，在北方梨新品种选育中具有广泛的应用前景。

Studies on Genetic Tendency of Main Characters of Hybrid Seedlings of ‘Pingguoli’ Pear

In order to improve the value of ' Pingguoli ' fruits,overcome the drawbacks and promote the breeding work of pear,the variant traits of hybrid seedlings from seven crosses taken ' Pingguoli ' pear as one paternal material were determined and genetic tendencies of major fruit traits were analyzed.The results showed that the heritability of soluble solid content in hybrid seedlings was 100.3% near to mid-parent value.The flavors of hybrid progenies appeared high proportion of sour-sweet,sweet-sour and sweet ...