无籽西瓜是4倍体与2倍体西瓜的杂交一代,它具有3组(3N)染色体。用这种西瓜种子播种后,结的瓜没有种子,故称为无籽西瓜,因而每年都要制种。1983年,我所制种1亩,收得杂交一代种子5.2斤。现将制种技术简报于下。 (一)精细整地,施足基肥西瓜最适宜于土层深厚、肥沃、排灌良好的壤土或沙质壤土栽培。本田于移栽前经2犁 Seedless watermelon is a cross between a tetraploid and a diploid watermelon with 3 sets of (3N) chromosomes. After sowing with this watermelon seed, the melon has no seeds, so it is called seedless watermelon, so seed is planted every year. In 1983, I planted 1 mu, received 5.2 pounds of hybrid seed. Production technology now briefings below. (A) fine preparation, Shizujifei Watermelon most suitable for deep soil, fertile, well-drained loam or sandy loam cultivation. Honda before transplanting 2 plow