一、主要优良品种1、早实型核桃(2—3年结果)(1)辽宁1号:树势较旺,树冠圆头形,分枝力强。雄先型,侧枝结果能力强.连续丰产性强,9月下旬成熟,属中晚熟品种。抗病、抗风、抗寒能力强。(2)辽宁3号:树势中等,树冠开张,半圆形,分枝力强。雄先型.侧枝结果能力强,连续丰产性强,9月下旬成熟,属中晚熟品 First, the main fine varieties 1, early-type walnut (2-3 years results) (1) Liaoning No. 1: tree vigor is more prosperous, canopy round-shaped branches strong. Male first type, collateral results ability. Continuous high yield, mature in late September, is a middle-late maturing varieties. Disease resistance, wind resistance, cold ability. (2) Liaoning No. 3: Shuzhong medium, the crown opened, semi-circular, strong branches. Male first type. Collateral results are strong, continuous high yield, mature in late September, is a middle-late-maturity