Study on Two Walnut Varieties Growth Model and Physiological Fruit-Dropping Law(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Study on Two Walnut Varieties Growth Model and Physiological Fruit-Dropping Law

Author(s):: BO Ying-sheng; ZHAI Mei-zhi; MAO Fu-chun; ZHENG Ji-cheng; College of Forestry，Northwest Agricultural and Forestry University，Yangling，Shaanxi 712100

Keywords:: ‘Xifu 1’ walnut; ‘Xifu 2’ walnut; three diameters of fruit; logistic model; physiological fruit-dropping

Abstract:: Using ‘Xifu 1’ and ‘Xifu 2’ walnut as materials，through phenologyical observation，dynamic fruit growth measurement and fruit-dropping regular research，growth model and physiological fruit-dropping law of these two walnuts were analyzed.The results showed that longitudinal diameter，transverse diameter and side diameter of ‘Xifu 1-2’ walnut and their growth time were highly consistent with the Logistic Model，the coefficient of correlation R and determination R2 were over 99%，and the statistical test of regression equation also reached significant level；‘Xifu 1-2’ walnut had twice the physiological fruit-dropping peak，but the physiological fruit-dropping rates of these two walnuts throughout a year were lower than other walnut varieties；the second physiological fruit-dropping peak of ‘Xifu 1’ walnut was not significant，while the second physiological fruit-dropping peak of ‘Xifu 2’ walnut was significantly larger than the first time.

[1]侯立群.中国核桃产业发展报告[M].北京:中国林业出版社,2008.

[2]高绍棠,杨吉安.洛南和扶风核桃优良品种特性与品质的分析研究[J].西北林学院学报,1989,4(2):39-44.

[3]翟梅枝,高绍棠.西扶1、2号早实核桃新品种特性及栽培技术[J].陕西林业科技,1998(2):20-21,38.

[4]刘惠珍,光志琼.核桃落花落果规律观察及保花保果措施研究[J].陕西林业科技,2008(2):24-27.

[5]薄颖生,翟梅枝,毛富春,等.“西林３号”核桃果实生长规律Logistic模型研究[J].北方园艺,2012(4):25-27.

[6]孙永泉,高玉娜,侯立群,等.绿香、香玲、元林核桃落花落果及果实的生长发育[J].林业科技,2011,36(2):27-30.

[7]王安民,王根宪,陈新乐.商洛核桃[M].杨凌:西北农林科技大学出版社,2009.

[8]李桂琴,郑荣庭.核桃生理落果的解剖学观察[J].河北农业大学学报,1993,10(3):63-69.

Last Update: 2014-08-30