‘孝核2号’核桃品种的选育研究

Breeding of Walnut Variety ‘Xiaohe 2’

‘孝核2号’选自"晋RS-1系"砧木品系的实生后代,属矮化品种,树高是对照辽宁1号的4/5,节间短,雄花少,丰产性强。平均单果重11.08 g,平均壳厚1.13 mm,缝合线紧密,可取整仁,出仁率63.54%。冻后二次萌发,其副芽及下部侧芽萌发新梢坐果率高,抗晚霜能力强,具有广阔的发展前景。

‘Xiaohe 2’was selected from the progenies of‘JinRS-1’rootstock line.It was a dwarf variety with 4/5 height of Liaoning 1.It was short internode,few male flowers and high yield.The average weight of single fruit is 11.08 g,the average shell thickness is 1.13 mm,the suture line is tight,the kernel rate is 63.54%.The Secondary Germination of Xiaohe 2 after freezing showed that its secondary buds and lower buds had high fruit setting rate.Xiaohe 2 hasstrong resistance to late frost and broad prospects for development.