不同早实核桃品种结果母枝结实能力的研究

为了改进栽培措施、使早实核桃连年丰产稳产,研究了不同早实核桃品种的不同类型结果母枝的结实能力以及1 a生枝的拉枝效果,结果表明,在所研究的早实核桃品种中,辽宁1号结果母枝连续结实能力最强,其4 a生枝段上连续3 a结果母枝比例及混合花芽比例分别为51.67%和55.83%;然后依次是辽宁3号、中林1号、绿岭和鲁果1号,分别为60.94%和36.30%、52.78%和36.99%、20.12%和42.83%、15.43%和15.30%。1 a生枝拉枝后的萌芽率平均为56%,未拉枝的仅36%,拉枝后平均新梢结果数提高了10%。

Research on fruiting capacity in precocious walnut of different varieties

To improve the cultivation measures and to achieve successive years' high and stable yield in walnut,we studied the fruiting capacity for the different varieties of walnut with different types of bearing base shoot and the pulling effects of the one-year-old shoot.The results showed that among different species of early-bearing walnut studied,Liaoning No.1 had the strongest continuous bearing capacity,and for its four-year-old shoots the three consecutive years bearing base shoot ratio and mixed flower buds were 51.67% and 55.83%,respectively,and followed by Liaoning No.3 with 60.94% and 36.30%,respectively.The Zhonglin No.1,the Green Mill and Luguo No.1 were the next ones with bearing base shoot ratio and mixed-flower buds of 52.78% and 36.99%,20.12% and 42.83% as well as 15.43% and 15.30%,respectively.One-year-old shoots after pulling got an average rate of 56% for sprouting,while for the shoots without pulling had only 36% of sprouting rate.After pulling the fruits from new sprouting shoot increased by 10%.