天发黑无籽二号西瓜选育报告

Breeding of New Seedless Watermelon Variety with Fine Quality and High Yield——Tianfahei Wuzi No.2

天发黑无籽二号是以四倍体QWM-14为母本、二倍体QWF-25为父本杂交育成的三倍体无籽西瓜新品种。属中晚熟品种,全生育期110d,果实发育期33d。植株生长健壮,叶片肥大,抗枯萎病、炭疽病,耐湿,耐重茬。易坐果,果实圆球型,果皮纯黑,覆浓蜡粉,外形美观,整齐度好,商品瓜率高。果皮厚1.2cm,硬度大,耐贮运。单瓜质量6～8kg,常规栽培产量可达37 639kg/hm2。果肉大红,肉脆汁甜,果实中心糖10.44%,边糖8.03%,品质极佳。无着色秕子。种子卵圆形,深褐色,千粒重57g。适应性强,河南省各地均可栽培。

Developed by Zhengzhou University and Henan Qingfa Seeds Co. ,Ltd, Tianfahei Wuzi No. 2 is a new triploid seedless watermelon cultivar with red flesh. It characterized by a strong resistance to several diseases, a good fruit setting, a high yield, and good marketable features. The central sugar content is 10. 44% with a fine crisp texture, juices and a delicious flavor. The weight of single fruit averages 6--8 kg; the total yield is 37 639 kg/ha in open field. It is tolerant to storage and transportation. Its growth period is 110 days, with a fruit maturity of 33 days after flowering. The cultivar grows vigorously and is suitable for cultivation in wide watermelon grow- ing areas in Henan province.