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以西北农林科技大学核桃试验示范站栽培的6年生“强特勒”核桃为试材,以同期栽培的“香玲”核桃为对照,通过物候观测和果实生长动态测定,对比分析了2个核桃品种的果实生长规律,以期为“强特勒”核桃的栽培管理提供参考依据。结果表明:2种核桃果实三径生长量与其生长时间的关系均与Logistic模型高度吻合,回归方程统计检验均达极显著水平;2种核桃果实三径相对生长速率均有4个完全同步的明显峰值,但“强特勒”核桃果实三径相对生长速率的第1和第4峰值出现时间均比“香玲”核桃落后7d;在果实快速生长期,2种核桃果形指数均呈由高向低的递减过程,但“强特勒”核桃果形指数的递减速度快于“香玲”。
The 6-year-old “Strongler” walnut cultivated in the walnut experiment demonstration station of Northwest A & F University was used as the test material and the “Hong Ling” walnut cultivated in the same period was compared. Through the phenological observation and fruit growth dynamic analysis, The law of fruit growth of two walnut cultivars was established in order to provide a reference for the cultivation and management of “Strongler ” walnut. The results showed that the relationship between the growth of three kinds of walnut fruits and their growth time was in good agreement with Logistic model and the regression equation was statistically significant. The relative growth rates of three kinds of walnut fruits were all completely synchronous However, the first and the fourth peaks of the relative growth rate of “Strongler ” walnut were all 7 days later than that of the “Lingling” walnut 7 days. In the rapid fruit growth period, the fruit shape index All showed a decreasing process from high to low, but the “Strongler ” walnut fruit shape index decreased faster than “Hong Ling ”.