薄壳山核桃在川南地区的生长特性

Growth Characteristics of Carya illinoensis in Southern Sichuan

通过对引种至四川南部地区的不同薄壳山核桃品种生长量、结果量等进行调查研究。结果表明:薄壳山核桃生长健壮,发育正常,薄壳山核桃雌雄花期集中在4月6日—5月8日,嫁接苗定植4年后多数品种开始初果,5年时最高单株产量达1.24kg·株^(−1);初步分析认为,薄壳山核桃对川南地区气候环境有良好的适应性,适宜种植发展薄壳山核桃,短期内可将29号、威士顿、761号作为主栽品种,21号、35号作为授粉品种进一步扩大区域试验范围。

The growth performance and fruiting quantity of different pecan varieties introduced to southern Sichuan were investigated.The results showed that the pecans grew sturdily and developed normally.The male and female flowering periods of pecans were from April 6 to May 8.After the grafted seedlings were planted,most varieties began to fruit at 4 years,and the highest yield per plant reached 1.24 kg at 5 years.Preliminary analysis indicated that the pecan had good adaptability to the climate environment in southern Sichuan,and was suitable for planting and developing.In the short term,No.29,Weston,and No.761 could be used as the main planting varieties.No.21 and No.35 could be used as the pollination varieties to further expand the scope of regional trials.