穗留果量对枝梢二次短截修剪后枇杷品质与产量的影响

Influence of Reserved Fruit Amount on Loquat Fruit Quality and Yield by Twice Cutting Back Pruning

在‘早钟6号’枇杷二次短截修剪提高结果母枝质量、果实品质及效益的研究基础上,进一步探讨不同穗留果量对果实品质、产量及效益的影响。结果表明:穗留果3个与穗留果4个、5个相比,可显著增加单果重、提高特级果比例和商品率;穗留果5个的可食率极显著高于穗留果4个的处理,而3个穗留果处理的果皮色泽、果形指数、可溶性固形物含量、果肉厚度差异不显著;3个处理间的果穗重、株产和单位面积产量差异显著,且随着穗留果量的增加有增大趋势,但单位面积产值差异不显著。认为穗留果3个较适宜,可提高优质果比率和商品率,实现丰产、稳产、高效种植目的。

Based on the improvement of loquat fruiting cane and fruit quality by twice cutting back pruning, the impacts of different reserved fruit amount on fruit quality and yield were explored. The results showed that three fruits left could significantly increase single fruit weight, extra grade quality fruit rate and commodity fruit rate compared with four fruits and five fruits left. The edible rate of five fruits left was significantly higher than that of four fruits left, but the difference of pericarp color, fruit shape index, soluble solids content and fruit flesh thickness were not reached difference among the three treatments. The difference of fruit cluster weight, single plant yield and unit yield was significant among the three treatments, but no significant difference in per unit output. In the end, three fruits left was suggested based on the increase of grade quality fruit rate and commodity fruit rate.