以Reid、No-Reid和DOM群为基础的共25个改良系作母本,以PH4CV和PH6WC作父本,按NCⅠ设计组配25个组合,在沈阳、昌图和梨树3个生态条件下研究组合单株产量的配合力、稳产性和丰产性。配合力分析结果表明：杂交组合中10个组合的SCA效应值为正值,组合PH4CV×PHGJ4改系5的SCA效应值最高。丰产性分析结果表明：组合PH4CV×PHGJ4改系5在3个地点的平均单株产量最高,组合PH6WC×PHB1M改系2在沈阳的单株产量最高, 组合PH4CV×PHGJ4改系1在梨树的单株产量最高,组合PH4CV×PHGJ4改系5在昌图的单株产量最高。稳产性分析结果表明：组合PH6WC×黄改系5的变异系数最低,单株产量中等。综合分析表明,Reid和No-Reid群改良系单株产量的稳定性和丰产性高；DOM群改良系单株产量稳定,需要提高丰产性。
英文摘要:
25 cross combinations were performed between 25 female parents from Reid, No-Reid and DOM groups, and male parents from PH4CV and PH6WC using NCⅠ design to study the combining ability, yield potential and stability of yield per plant on Shenyang, Changtu and Lishu. The analysis of combining ability showed that the effect values of SCA of 10 combinations were positive and the effect values of SCA of PH4CV×PHGJ4-5 was highest. The analysis of yield potential showed that the yield potential of PH4CV×PHGJ4-5 was highest in three locations, the yield potential of PH6WC×PHB1M-2 was highest in Shenyang, the yield potential of PH4CV×PHGL4-1 was highest in Lishu, the yield potential of PH4CV×PHGJ4-5 were highest in Changtu. The analysis of stability showed that the CV of PH6WC×DOM-5 was lowest and the yield per plant was middle. General analysis showed that yield potential and stability of improved lines from Reid and No-Reid groups were high; The yield per plant of DOM group improved lines was stable and need to improve the yield potential.
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