留果节位对哈密瓜果实品质及产量的影响

Effects of Different Fruiting Nodes on Fruit Quality and Yield of Hami-melon

为了探讨不同留果节位对哈密瓜果实生育期、产量及品质的影响,以华蜜0526、华蜜1001、雪里红这3个品种为试验材料,分别在低节位(8~10节)和高节位(13~15节)留果,采取吊蔓栽培,单蔓单果整枝方式进行试验。结果表明:不同留果节位对试验品种采收期有一定的影响,留果节位高成熟晚,高节位比低节位延迟4~5 d;3个试验品种高节位果实的果肉厚度、中心糖度均高于低节位,且单果质量和产量也均显著高于低节位哈密瓜;所以,实际生产中选择留果节位时,可以根据不同品种成熟采收时间以及产量高低来综合考量,还可以根据需求合理分配,错峰上市。

In order to investigate the effects of fruiting nodes on growth duration,yield and fruit quality,three hami-melon cultivars ’Huami 0526’ ’Huami 1001’ and ’Xuelihong’ were used as experimental materials.All plants were grown using the cultivation method of single tendril hanging in the southeast of Jiangsu province.The treatments included setting one fruit per hami-melon plant at the lower (8-10) nodes,or upper (13-15) nodes on the tendril.The results showed that fruiting nodes had influence on the growth duration of hami-melon cultivars.Fruits on the upper nodes matured 4-5 days later than fruits on the lower nodes.Flesh thickness,heart sugar contents on the upper nodes were higher than those of lower nodes,and single fruit weight and yield on the upper nodes were significantly higher than those of lower nodes.Therefore,in the actual production,the fruit node could be selected on the basis of the comprehensive consideration of mature harvest time and yield of different cultivars,as well as the reasonable allocation of staggered peak listing according to the demand.