无籽西瓜“三高”制种相关技术研究
Studies on Relative Techniques for“Three High” Production of Seedless Watermelon
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摘要: 针对目前无籽西瓜生产上存在的“三低”问题,在我国西北地区进行制种与相关技术的研究,结果表明:不同组合和不同气候条件下的采种量、种子发芽率和田间出苗率不同,有的差异极显著;在一定范围内的单瓜重和种子数呈正相关;着生于第1～3雌花节位、其重量相当的果实,种子数与节位高低呈负相关,留瓜数以2.7～3.15万个/hm2为宜。研究结果可为栽培技术调控提供科学依据。Abstract: The seed production of seedless watermelon was carried out in Northwest part of China.Studies on relative techniques for seed production showed that,the seed amount,germinating rate of seeds,sprouting rate of seeds in field condition varied with combinations and climate condition within a certain range,the weight of single melon was positively related to its seed amount;the seed amount of the melons growing at lst to 3rd female flower knot,was negatively related to its flower locating position from lower to higher part of the plant.Optimum melon number for the seed production was 2.7-3.15?103/hm2.
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