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四、西瓜的育种方法 (一)引种选纯 (二)一代杂交品种育种 (三)三倍体育种 (1)育成优良的三倍体品种 (2)提高三倍体种子稔性和发芽率 四倍体自交稔性以及四倍体与二倍体杂交稔性都相当低,必须分离出四倍体自交稔性高的单系,以便寻找出四倍体与二倍体杂交稔性高组合。同时还需要找出生产发芽率较高的四倍体和三倍体种子的方法。
Fourth, the watermelon breeding methods (A) the introduction of pure selection (B) a generation of hybrid breeding (C) triploid breeding (1) breed fine triploid (2) improve the triploid seed germination and germination rate of four Tetraploid selfing and tetraploid hybrids are very low, and tetraploid and diploid hybrids are quite low, tetraploid inbred lines must be isolated in order to find tetraploid and diploid hybrids with high sex combination. There is also a need to find ways to produce tetraploid and triploid seeds with higher germination rates.