中外葡萄与葡萄酒Issue(5)：44-51,8.DOI:10.13414/j.cnki.zwpp.2026.05.006
不同架式与副梢修剪下鲜食葡萄叶面积估算模型构建
Construction of Leaf Area Estimation Models for Table Grape Cultivars with Different Trellis Systems and Lateral Pruning Methods
摘要
Abstract
This study aimed to establish non-destructive leaf area(LA)estimation models for two table grape cultivars with distinct leaf shapes:'Victoria'(wedge-shaped,leaf shape index＞1.4)and'Kyoho'(suborbicular,leaf shape index 1.3-1.4),and to analyze the effects of cultivar and cultivation practices on model parameters.A randomized block design was employed with two trellis systems and three lateral pruning treatments.Leaf length(LL),leaf width(LW),and actual LA of 300 leaves were measured.The optimal estimation model was selected through correlation analysis and multi-model comparison.The results showed that LA was most strongly correlated with the product of LL and LW(LL×LW,r=0.916).The optimal model was a zero-intercept linear model:LA=k×(LL×LW).The k value differed significantly between cultivars,with values of 0.405 for'Victoria'and 0.469 for'Kyoho'.Within the same cultivar,k values remained stable under different trellis systems and pruning methods,with their 95%confidence intervals broadly overlapping.The k value was significantly negatively correlated with the leaf shape index(LL/LW).A general model based on the entire dataset(k=0.443)showed high model fit(R²=0.985,RMSE=22.648 cm²).Using cultivar-specific models reduced the mean absolute error(MAE)of LA from 17.99 cm²(general model)to 9.85 cm² for'Victoria'and 16.94 cm² for'Kyoho',respectively.In summary,LL×LW serves as an ideal variable for LA estimation models for the grape cultivars tested.The k value is primarily determined by cultivar genetic characteristics and remains robust against cultivation practices.For practical applications,cultivar-specific k values(0.405 for'Victoria'and 0.469 for'Kyoho')can be used for accurate LA estimation across different cultivation regimes.The general k value(0.443)is suitable for rapid,general-purpose estimation.关键词
鲜食葡萄/叶形/叶面积/估算模型/架式/副梢修剪Key words
table grape/leaf shape/leaf area/estimation model/trellis system/lateral pruning分类
农业科技引用本文复制引用
刘秋言,贾贝西,刘卫英,赵亮宇,赵宝龙,孙军利..不同架式与副梢修剪下鲜食葡萄叶面积估算模型构建[J].中外葡萄与葡萄酒,2026,(5):44-51,8.基金项目
兵团杰出青年项目(2024DB004) （2024DB004）
兵团"三农"骨干人才培养项目第七师胡杨河市-石河子大学创新合作专项(QS2025009) （QS2025009）
新疆石河子葡萄科技小院(2026FA019) （2026FA019）
