摘要
通过1987年和1988年对春季迟播西瓜的产量,产量结构、果实品质和采摘期的研究表明:春季迟播西瓜以4月15日为最佳播期,4月15—20日为适宜播期。在此播期范围内,对产量影响极大的单株结瓜数相对较多,且7月26日后的采摘量达58.3%以上,果实品质也较佳。供应上海市区的商品西瓜约有80%来源于本市郊区,且集中在7月25日前,而外地晚熟西瓜则于8月中旬前后才进入上海市场。故为了满足市场在7月26日以后对晚西瓜的需要,安排一定面积的春季迟播西瓜,将播期适当推迟至4月15—20日,达到推迟采摘期的目的,是在不影响产量和品质的前提下而延长供应期的有效途径之一。
The studies carried out in 1987 and 1988 on yield, yield components, fruit quality and picking time of spring late-sowing watermelon showed that April 15 was the optimal date for spring late sowing, and the dates from April 15-20, however, were all considered as suitable sowing times. Sown within this period, the number of fruits born on a single plant, which had great influence on the yield, was relatively more great. In addition, the fruit harvesting rate after Jul. 26 attained 58.3% or more of the total yield and the fruit quality was better as well.On the markets of Shanghai urban districts, about 80% watermelons came from Shanghai rural production and whose supply time was concentrated before Jul. 25, while the late-watermelons produced from other regions appeared on Shanghai markets near the middle of Aug. Therefore, properly postponing sowing time to April 15-20 is one of the efficient ways for defering the picking time and extending the watermelons supply period on the market in order to satisfy the market requirements post Jul. 26.
出处
《上海农业学报》
CSCD
1989年第2期47-53,共7页
Acta Agriculturae Shanghai
关键词
西瓜
播期
单株结瓜数
果实品质
采摘期
产量
春季
Watermelon, Sowing time, Number of watermelons per plant, Fruit quality, Picking time