The Analysis Of Flowering Characteristics And Main Nut Economic Characters Of Walnut From Guanzhong Chuankou Demonstration

Walnut tree is the one of the most important forest tree species. Due to the significant economic and ecological benefits, it is cultivated in large areas. China is the one of original area of Walnut tree which has many varieties of it. In order to improve the production of walnut, economic characters of walnut has been studied and the results are as followings:1. Observation for two consecutive years in Chuan kou walnut demonstration districts show that xiluo2, zhonglin1, zhonglin5,xilin2,wen185, qieke are the type of flowering pistillate flower earlier while the others are the staminate flower earlier. For the staminate flower earlier type, the duration of staminate flowering is 4-10 days while the pistillate is 8-11days. The plastochrone is 8-15days. For the pistillate flower earlier type, the duration of staminate flowering is 5-12 days while the pistillate is 4-8 days. The plastochrone is4-12 days. There is no variety that the florescence of pistillate and staminate flower is definitely coherent. It proved that walnut florescence is a trait that is inherited stably.2. Twenty-six varieties of nuts economical characters observations show that different walnut varieties of main economic characters QingGuo heavy, wet weight, dried fruit weight, kernel weight, be reconciled QingGuo kernel rate differences for the highest temperature heavy weight 185 varieties, weighing 742.32 g, lowest is frank di, weight of 75.94 g, wet weight only for the highest temperature 185 varieties, 24.66 reach 291.91 g, minimum for falkland di, weight of 24.56 g, dried fruit weighs only highest is Lin 3 varieties, weighing 163.49 g, weight for frank's lowest, single fruit weighs only 1.736 g, kernel weight is highest is Lin 3 varieties, single nuts weighed 99.20 g, lowest is frank di, single nuts heavy 7.32 g, has only 12 varieties good kernel rate was 100%, there are 20 varieties good kernel rate more than 90%, and the analysis shows that the four important economic characteristics QingGuo heavy, wet weight, dried fruit weight, kernel weight has significant correlation between kernel rate with good, and not related.3. Stocks in walnut main economic characteristics significantly influences the formation, divided by earth to the temperature's stocks in QingGuo heavy, 185 varieties of wet weight, dried fruit weight, kernel weight on 4 important economic characters in contrast, poor other three outside stock materials are remarkably enhance the grafting varieties of economic characters, among them with strong characteristics, le for stocks, synergistic bigger, stronger, QingGuo root stock make sweet ling breed weighing, wet weight, dried fruit weight, the kernel weight increased 4.37 g, 41.01 g 10.79 g, 7.82 g, respectively, make temperature QingGuo heavy, varieties of 185 wet weight, dried fruit weight, benevolence heavy increased 341.43 g, 10.35 g 6.26 g, 6.81 g respectively, make luguang QingGuo heavy, wet weight varieties, dried fruit weight, the kernel weight increased 65.43 g, 6.26 g, 10.35 g 6.81 g. respectively,...