小果型无籽西瓜新品种碧绿的选育

Breeding of Bilv,a New Seedless Mini-watermelon Cultivar

碧绿是开封市蔬菜科学研究所以诱变稳定的小果型四倍体4X-66作母本,以小果型二倍体自交系X-18为父本配制而成的小果型无籽西瓜新品种。该品种易坐瓜,全生育期100 d左右,果实发育期28 d左右。植株生长势强,抗病抗逆性强。果实短椭圆形;果皮绿色覆深绿网纹,厚度0.5 cm左右,坚韧耐贮运。瓤色鲜黄,质脆爽口,纤维极少,白秕籽小且极少,无籽性能好;中心可溶性固形物含量12.5%左右。单果质量2.3～2.5 kg,667 m2产量约2 500 kg。耐低温、弱光性好,适宜于日光温室及大棚早春设施栽培。

Bilv is a new seedless mini-watermelon developed by taking tetraploid mini-watermelon 4X-66 as female parent and diploid inbred line X-18 （mini-watermelon） as male parent. Bilv sets fruits easily, with the whole growth period of about 100 days and fruit development period of about 28 day. It grows vigorously and with strong disease and stress resistance. The fruit is oval, and the peel is green with dark green stripes. Its peel thickness is about 0.5 cm, and the fruits are resistant to transport. The yellow flesh is crisp with excellent taste and flavor, and there are few white abortive seeds in the fruits. The central soluble solid content is about 12.5%. The single fruit weight is 2.3-2.5 kg, and the yield is about 2 500 kg/667 m2. It bears the low temperature and weak light, and it is suitable for cultivation in both sunlight greenhouse and early spring greenhouse.