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枇杷是我国特产果树之一。近年来鲜销、加工数量均激增,发展较快;但单位面积和单株产量不高,在日本平均也不过500公斤/亩,国内产量更低。果树是统一的有机体,产量与各器官间存在直接和间接相关。本研究拟探讨通过某些器官的生长发育以提高产量,为栽培上提供理论依据。采用通径分析法来找出它们之间关系,并用逐步回归法剔除一些不显著的器官性状,从而建立一个‘最优’回归方程,这个方程不但可以用来预测单株产量,其偏回归系数也可说明各性状重要性。
Loquat is one of the specialty fruit trees in our country. In recent years, the sales volumes have surged and the processing volume has surged rapidly. However, the unit area and output per plant are not high, but the average output in Japan is only 500 kg / mu and the domestic output is even lower. Fruit tree is a unified organism, yield and each organ has direct and indirect correlation. This study intends to explore the growth and development of certain organs to improve yield and provide a theoretical basis for cultivation. Using the path analysis method to find out the relationship between them, and using stepwise regression method to eliminate some insignificant organ traits, so as to establish a ’optimal’ regression equation, this equation can not only be used to predict yield per plant, its partial regression coefficient It also shows the importance of each trait.