Study On Some Characters Of Seeding Progeny Of Thin-skinned Walnut In Xinjiang

Walnut planting area in Xinjiang is bigger, has reached 5 million mu, thin-skinned walnut of Xinjiang the main varieties have Wen185, Xinxin2, Zha343, Wen81, Xinzaofeng, Xincuifeng, Xinjufeng, but the main varieties are mainly composed of Wen 185 and Xinxin2, the rest of the varieties cultivated area is small.This test by 13 Xinjiang thin-skinned walnut varieties from offspring as the research object, mainly studies the walnut nut single fruit weight, kernel, and kernel weight, shell thickness, etc. To select good quality, has the development potential of walnut from offspring, explore the differences of different walnut character between the health offspring, qualitative quantitative analysis of walnut selected from the quality of the offspring nuts related indicators, using the variance analysis, grey correlation, correlation analysis, cluster analysis to comprehensive analysis of the above indicators. Through the research on the health offspring the external quality of the fruit, provide scientific theory basis for walnut variety breeding and cultivation. The results showed that:1. Through to the 13 Xinjiang thin-skinned walnut varieties from offspring study, average fruit weight is 17.63- 9.86 g, among them, the "Xinjufeng" has the highest average fruit weight, 17.63 g, "Wen81" the average weight of lowest, 9.86 g.The average kernel is between 61.52% to 47.39%, among them, "Wen179" had the highest average kernel was 61.52%, the minimum, "71" was 47.39%.Average kernel is 8.93- 5.24 g, one of the "Xinjufeng" average kernel weight, the largest is 8.93 g, " Xinxin 2" minimum, 5.24 g.13 Xinjiang thin-skinned walnut varieties from offspring of average shell thickness between 1.14 to 2.01 mm, among them, the "Xinjufeng" the average shell thickness of the thick, is 2.01 mm, "Wen185" the average shell thickness of the thin, is 1.14 mm.2. By the method of grey correlation, 13 thin-skinned walnut varieties in Xinjiang from offspring of walnut nut external quality evaluation of the comprehensive characteristic, it is concluded that "north 2-1", "north 3-1", "north 7-2", "north 6-3", "north 5-3", "middle 6-17", "north 2-6" " middle 2-17", "south 3-14", "south 2-11", "south 1-2", "south 3-5", " middle 1-20", " middle 2-11", " middle 6-8", " middle 4-10", " middle 1-3", " middle 7-2", "south 3-15", "south 7-23" strains and 20 health offspring of external comprehensive quality good.3. Through to the 13 Xinjiang thin-skinned walnut varieties from nuts traits in study, conclusions are obtained by correlation analysis, kernel weight and kernel, single fruit weight is very significant positive correlation. Total weight and green tangerine peel thickness, weight of a significant positive correlation. Shell thickness and hardness were very significant positive correlation, the joint line tightness, and significant positive correlation to the joint line height.4. Through 13 Xinjiang thin-skinned walnut varieties from nuts traits into system clustering, the 13 varieties can be divided into four categories, the first kind of {" 71 "walnut managed a posterity}, main features: high is higher, the tightness of the joint line. The second category for {" 91 ", “Xinzaofeng", "Xinfeng", "611", "Wen81", "Xincuifeng", "Zha343", "Wen417", "Xinxin2" walnut from offspring}, the main characteristics: weight is smaller. The third kind of {"Wen179 ", "Wen185" walnut from offspring}, main features: high kernel, total weight is smaller. Fourth class for {"Xinjufeng"walnut managed a posterity}, main features: single fruit weight, kernel weight were bigger, shell thickness thicker.