凤庆县核桃品种调查和优良单株选择初报

对凤庆县核桃品种进行调查和优良单株选择,调查到的6种核桃品种分别为大泡核桃、水箐夹棉核桃、夹棉核桃、漏米核桃、大麻茶核桃、圆波罗核桃.经过筛选与对比,大泡核桃品质较好,适宜在全县范围内推广;共初选出127株大泡核桃优良单株,经复选,共选出97株大泡核桃优良单株;依据雪山镇立体气候对大泡核桃影响的调查结果分析,雪山镇立体气候对凤庆县的主栽品种大泡核桃的壳厚、出仁率、出油率等都有一定的影响.经分析认为,大泡核桃在凤庆县最适宜区海拔为1 600～2 100 m,次适宜区海拔为1 200～1 600 m、2 100～2 200 m,海拔1 200 m以下与2 200 m以上的地段为不适宜区.

The Investigation of Varietal Resource and The Selection of Fine Individual Plant of Walnut in Fengqing Country

Through the selection and investigation of varietal resource and individual plant of walnut in Fengqing country, the result showes there are six walnut varieties of which Bulla walnut, Jiamian wal- nut, Jiamian walnut, missed rice walnut, damacha walnut, round pineapple and small tip mounth wal- nut, the quality of Bulla walnut is better than the others by selection and comparison, which is suitable extension on a country scale. Taking multiple selection method, 97 superior individual plants are selected among 127 superior individual plants. Based on analysis of the effects of stereo climate in snow mountain town on Bulla walnut, we consider that stereo climate have significant influence on shell thickness, ker- nel percent, oil yielding rate of bulla walnut, and the optimum altitude in Fengqing country is 1600 - 2100m, sub-suitable altitude are 1200 - 1600m, 2100 - 2200m, the altitude which below 1200m and higher than 2200m are unsuitable regions for bulla walnut.