华南型黄瓜烟农1号的选育

A New Cucumber F_ 1 Hybrid —‘Yannong No.1’

烟农1号是以烟台地方品种海阳白黄瓜经6代自交纯化选育出的强雌株系A7-3-5-1-2—5—7为母本，以地方品种烟台白玉经6代自交纯化选育出的自交系B2—3—5—4—5-1-8为父本配制而成的华南型黄瓜一代杂种。生长势较强，主蔓结瓜为主，瓜短圆筒状，瓜皮白绿色，瓜条顺直、有光泽，肉质细嫩脆甜，风味好，刺瘤少；商品瓜长20cm左右，横径3、5cm左右，单瓜质量100—120g；早熟，从定植至始收35d（天）左右；对霜霉病和白粉病的抗性优于对照海阳白黄瓜和鲁黄瓜3号，具一定的耐低温弱光能力，适合春早熟栽培，日光温室春早熟栽培每667m^2产量6000kg左右。

Yannong No. 1 is a new cucumber F, hybrid developed by crossing two inbred lines A -3 -5 - 1 -2 -5 -7 which was selected from Haiyangbaihuanggua as a female parent and B - 3 - 5 - 4 - 5 - 1 - 8 which was selected from Yantaibaiyu as a male parent. It has stronger resistance to downy mildew, powdery midew than Haiyangbaihuanggua and Luhuanggua No. 3, tolerance to low temperture and weak light. Its fruit is about 20 cm in length and 3.5 cm in diameter and 100 - 120 g in weight. Its skin is smooth and white-green with luster. It takes only 35 days from sowing to the first harvesting. It has good quality. It is suitible for greenhouse cultivaton in early spring. Its yield is 90 t· hm^-2 in greenhouse.