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我县是青海主要梨产区。梨树栽培历史较久,主栽品种是长把梨(甜梨),产量占梨总产的75％,其余依次为软梨、冬果梨、酸梨、酥梅梨,还有极少量的窝果、搅团等品种。长把梨,丰产、稳产、品质中上,但贮藏期不长。冬果梨耐贮藏,但是有半数以上品质较差。软梨、酥梅梨都不耐贮藏。酸梨品质较差。可见原有梨的品种都有一定缺点。为了寻找丰产、质优、耐贮藏并适合本地区生长的优良梨品种,我们引进全国各地的优良梨品种接穗,高接在老梨树上进行试验。七二年确定苹果梨作为推广品种,作了部分高接换种以扩大接穗来源。近几年就梨树高接换种作了一些试验,现将初步结果介绍如下:
My county is the main pear-producing areas in Qinghai. Pear cultivation history is longer, the main varieties are long pear (sweet pear), the output accounted for 75% of the total output of pear, followed by soft pear, winter pear, pear, crisp pear, and a very small amount of nest Fruit, stirring groups and other varieties. Long pears, high yield, stable yield, high quality, but the storage period is not long. Pear resistant to winter fruit storage, but less than half of the quality. Soft pear, crispy pear are not resistant to storage. Poor quality pear. We can see that there are some shortcomings of the original pear varieties. In order to find good pear varieties with high yield, high quality, storable and suitable for growing in this area, we have introduced scion of fine pear varieties all over the country and tested them on old pear trees. Seven or two years to determine the apple pear as a promotional species, made a partial replacement of high-cut to expand the source of scion. In recent years, high-exchange pear varieties made some tests, the preliminary results are as follows: