‘Keli No. 1’is a pumpkin F1 hybrid developed by crossing S31-1 as female parent and S4-1 as male parent. The plant is sprawling with medium growth vigor,less branch,small leaf blades and short internodes. The first female flower sets on the 9th node. Its young fruit is of oblate shape,and is green in color. The single fruit is 0.5-1.5 kg in weight,about 9 cm in diameter and about 13 cm in length. Its tender melon has good waxy,starch,and superior quality. In open field in spring and protected field in autumn,the tender fruit can yield 22.5-30.0 t·hm-2. In protected field in early spring,the tender fruit can yield about 45 t·hm-2. It is suitable to be planted in Zhejiang Province and areas with similar cultivation conditions.%科栗1号是以S31-1为母本、S4-1为父本配制而成的南瓜一代杂种。植株蔓生，长势中等；分枝较少，叶小，节间短；第1雌花节位第9节左右；嫩瓜扁圆形，瓜皮绿色覆绿色斑点和浅色纵条斑纹，老瓜皮墨绿色。嫩瓜单瓜质量0.5～1.5 kg，果实横径9 cm左右，纵径13 cm左右，糯性好，粉质，品质佳；春季露地和秋季设施栽培嫩瓜产量1500～2000 kg·（667 m2）-1，早春设施栽培嫩瓜产量3000 kg·（667 m2）-1左右。适宜浙江省及栽培条件相似的地区推广种植。
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