论文部分内容阅读
【目的】研究反季节四季蜜龙眼果实生长发育动态,为制定高产、优质四季蜜龙眼栽培管理措施提供参考依据。【方法】跟踪测定反季节四季蜜龙眼发育期果实的纵径、大横径、小横径、单果重、果皮重、果肉重、种子重及可溶性固形物含量等指标,分别采用多项回归和求导方法建立四季蜜龙眼果实的生长发育数学模型和物质累积速度模型。【结果】反季节四季蜜龙眼果实生长发育需108 d,成熟阶段历时21 d。果径生长曲线前期上升较慢,中期上升较快;果肉重、果皮重、种子重和单果重在花后52 d开始快速增加;可溶性固形物含量在花后66~94 d快速增长,最高峰达25.1%。根据果实各指标数据建立的四季蜜龙眼果实生长发育数学模型,拟合出多项回归方程式,其中纵径、大横径、小横径、单果重及果肉重的拟合方程为二次方程,果皮重、种子重及可溶性固形物含量的拟合方程为三次方程,动态模型回归方程经F检验均达显著差异水平(P<0.05),决定系数R2均大于0.9800,达极显著差异水平(P<0.01);物质累积速度模型显示,果实纵径、大横径和小横径及单果重和果肉重5个指标的累积速度模型为一次直线方程,果皮重、种子重和可溶性固形物含量的累积速度模型为二次方程。【结论】四季蜜龙眼的生长发育动态及其数学模型可作为制定四季蜜龙眼高产、优质栽培管理措施的参考依据。
【Objective】 The purpose of this study was to study the growth and development of the fruit of the seasons of Aronia melon and to provide references for the cultivation and management of high yielding and high quality seasons. 【Method】 The indexes of longitudinal, large diameter, small diameter, weight of single fruit, weight of pericarp, weight of flesh, seed weight and soluble solid content were measured and traced by multiple regression analysis Derivation of methods to establish four seasons of lemon fruit growth and development of mathematical model and material accumulation rate model. 【Result】 The results showed that the growth and development of the fruit of the season seasons honey were 120 days and the maturity stage lasted 21 days. The growth curve of fruit diameter at the early stage increased slowly and increased rapidly at the middle stage. The weight of flesh, weight of pericarp, seed weight and fruit weight increased rapidly at 52 days after anthesis. The content of soluble solids rapidly increased from 66 days to 94 days after anthesis, Up to 25.1%. According to the mathematical model of the growth and development of the fruit of the four seasons, the regression equations were fitted. The fitting equations of vertical diameter, large diameter, small diameter, fruit weight and flesh weight were quadratic equations, The fitting equation of pericarp weight, seed weight and soluble solids content was cubic equation. The regression equation of dynamic model reached significant difference (P <0.05) by F test, and the coefficient of determination R2 was greater than 0.9800, reaching the extremely significant difference (P <0.01). The model of material accumulation velocity showed that the cumulative velocity model of five indexes of fruit length, large diameter, small diameter, single fruit weight and flesh weight was a straight line equation, the weight of pericarp, seed weight and soluble solid content The cumulative velocity model is quadratic. 【Conclusion】 The growth and development of the seasons and its mathematical model can be used as a reference for formulating the high-yielding and high-quality cultivation and management measures of the four season longan.