洋芋是海拔较高山区农民的主粮之一。但多年来由于品种多、杂、乱导致种性退化,单产低而不稳。为此,我们自1989年秋从四川省彭县引进“川芋56”种植,通过4年的示范、推广,对“川芋56”的适应性和效果进行了探索。现总结如下。 (一)产量表现 “川芋56”由四川省农科院作物所选育。1987年通过审定,1991年确定为推广品种,并列入1993年四川省农牧厅“丰收 Potato is one of the staple foods for peasants in higher elevations in the mountains. However, over the years due to more varieties, miscellaneous, chaos led to degenerative species, low yield and instability. To this end, we introduced “Sichuan 54” from Peng County in Sichuan Province in the autumn of 1989 and explored the adaptability and effect of “Sichuan 56” through four years of demonstration and promotion. Now summarized as follows. (A) yield performance “Sichuan taro 56” by the Sichuan Academy of Agricultural Sciences crop selection. Approved in 1987, identified in 1991 as a promotion of varieties, and included in 1993, Sichuan Provincial Department of Agriculture and Animal Husbandry "harvest