红富士苹果树形改造对冠层相对光照及产量、品质的影响

以红富士苹果为试材,进行了三种不同整形处理:①垂柳式树形、②高光效树形、③改良纺锤形,以原有的主干疏散分层形作为对照,测定经过不同整形处理后的树体枝量、相对光照强度、产量及果实品质。结果表明:垂柳式树形枝量均衡,短枝所占比例大,树体通风透光条件好,且受光量相对均衡,产量品质均优于其它树形;高光效树形虽不能提高产量,但果品质量明显提高。

Effect of Different Tree Canopy Shapes on Relative Light, Yield and Quality of Red Fuji Apple

Trees trained in three different canopy shapes of Red Fuji apple were used for observing the branch amount,relative light intensity,yield and fruit quality.The three shapes were weeping willow shape,high photosynthetic performance shape and improved spindle shape,with the delayed-open central leader system as the check.The results showed that the weeping willow shape was better than other shapes.The branches were balanced and the spur occupied a large proportion,the conditions of ventilation and light transmittance were good.Although the high photosynthetic performance shape could not increase yield,the fruit quality could be improved.