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【目的】了解新疆主栽杂交榛果实生长发育动态规律,以期为果实发育过程中的土肥管理和微环境控制提供依据,进一步提高新疆杂交榛的产量和质量。【方法】对‘达维’、‘辽榛7号’、‘玉坠’、‘平欧15号’4个新疆主栽杂交榛品种(系)果实发育期跟踪测定三径、单果鲜质量、体积、果仁鲜质量、果壳厚度、出仁率、空粒率,采用数学模型拟合果实生长发育动态曲线。【结果】新疆主栽4个杂交榛品种(系)果实动态生长发育的变化表现为“S”型生长曲线,其拟合曲线的相关系数R2都在0.98以上,达到极显著水平。果壳厚度的增长为指数生长曲线,其相关系数R2都在0.94以上,呈极显著水平。【结论】采用数学模型进行拟合曲线分析,可以较好的反映果实生长发育动态规律,为杂交榛果实生长发育提供较为准确的预测。
【Objective】 The objective of this study was to understand the dynamic growth and development of hybrid hazelnut in Xinjiang in order to provide a basis for soil fertility management and microenvironment control in the process of fruit development and to further improve the yield and quality of hybrid hazelnut in Xinjiang. 【Method】 The growth and development of three major cultivars of hybrid hazelnut varieties (lines) in Xinjiang, including ’Dawei’, ’Liaozhen 7’, ’Yuzao’ and ’Ping’ou 15’ Volume, the fresh quality of nuts, the thickness of shell, the rate of kernel to kernel and the rate of empty grains, the mathematical model was used to fit the dynamic curve of fruit growth and development. 【Result】 The results showed that the dynamic growth and development of four hybrid hazel varieties cultivated in Xinjiang showed “S ” type growth curve, and the correlation coefficient R2 of the fitted curve was above 0.98, reaching extremely significant level. The growth of the thickness of the husk was an exponential growth curve, and the correlation coefficient R2 was above 0.94, showing an extremely significant level. 【Conclusion】 The fitting curve analysis using mathematical model can reflect the dynamic law of fruit growth and development and provide a more accurate prediction for the growth and development of hybrid hazelnut.