马奶子葡萄叶面积评估模型的建立

【目的】研究新疆南疆地区马奶子葡萄叶长、叶宽、叶长×叶宽及叶面积之间的关系,为田间快速估测葡萄叶面积提供方法。【方法】以南疆地区马奶子葡萄品种的叶片作为研究对象,测定叶片的叶长、叶宽、叶长×叶宽及叶面积值,分析不同指标和马奶子葡萄叶面积之间的关系。【结果】建立的叶面积估测的二元回归方程,是估测马奶子葡萄叶面积最佳的回归方程,估测的平均差异率仅为2.103%;建立的二元回归方程y₁=12.990x₁+2.501x₂-66.109为最优方程。【结论】马奶子葡萄叶片的叶长、叶宽、叶长×叶宽与叶面积均存在极显著相关,运用回归法估测马奶子葡萄叶面积,既不破坏树体,又具有简便易测、可靠性强、准确性高的优点。

Establishment of Evaluation Model of Leaf Area of Niunai Grape

【Objective】 To study the relationship between leaf length, leaf width, leaf length × leaf width and leaf area of malt seeds in southern Xinjiang in the hope of providing a method for rapid estimation of grape leaf area in the field. 【Method】 The leaves of Niunai grape varieties in southern Xinjiang were used as research objects, the leaf length, leaf width, leaf length × leaf width and leaf area were measured and the relationship between different indexes and the leaf area of Niunai grape was analyzed. 【Results】 The established regression equation of leaf area estimation was the best regression equation for estimating the leaf area of Niunai grape, and the estimated average difference rate was only 2.103%. The established binary regression equation was y₁ =12.990x₁+2.501x₂-66.109 . 【Conclusion】 The results of this study provide an effective method for the determination of grape leaf area and have a good application value in grape production practice and scientific research.Provide theoretical basis for grape leaf curtain management.