主要栽培因素对无子西瓜产量和果实品质的影响

THE EFFECTS OF PRINCIPAL CULTIVATION FACTORS ON THE YIELDS AND QUALITY OF SEEDLESS WATERMELONS

主要栽培因素对无子西瓜产量和果实品质影响的研究结果表明，在湖南西瓜生长前期低温、多雨、寡照和后期高温、干旱的气候条件下，无子西瓜的播种期：海拔３００ｍ左右的平湖、丘陵区以３月底、４月初为宜，海拔６００～８００ｍ的高寒山区以５月上、中旬为宜，栽培密度为７５００株／ｈｍ２，双蔓式整枝的产量最高，不同有机肥与化肥配施比单施化肥产量高，果实品质好．

The results of the study as titled showed that the proper sowing time of seedless watermelons for champaign,lake and koppie areas (about 300 m above sea level) was between the end of March and the beginning of April,for hiemal and high altilude mountainous areas was between the begining and middle of May,considering the materological conditions of low temperature,rainy,oligo sunlight during the initial stage of growth and high temparature and drought during the later stage of growth in Hunan province.The results also showed that 7 500 plants per hm 2,double vines type might bring forword highest yields,and application of Chemical fertilzers mixed with organic ones.