西葫芦新品种青葫1号的选育

A New Summer Squash F_1 Hybrid —‘ Qinghu No.1'

青葫1号是以优良自交系0452-086为母本,以0921-033为父本配制而成的早熟西葫芦一代杂种。矮蔓生,第1雌花节位为第5~6节,瓜条顺直,长棒形,平均纵径28.75cm,横径7.27cm,皮色墨绿,单瓜质量670g左右,连续结瓜能力强,成瓜率高,商品性好。每667m^2平均产量达4100kg以上,高产田每667m^2产量可达5300kg以上。西宁地区播种到采收50d(天)左右,采收期比对照早青一代早10d(天)左右,全生育期120d(天)左右。田间对白粉病的抗性强于对照早青一代。适宜在青海省各地温室周年栽培,及海拔2900m以下地区露地越夏栽培。

‘Qinghu No.1’is a new summer squash F1 hybrid developed by crossing inbred line‘0452-086’ as female parent and inbred line‘0921-033’as male parent.The plant grows vigorously with short nods.The first female flower sets on the 5-6 th nodes.The fruit is of straight,long stick shape with dark green peel.The average verticle diameter is 28.75 cm and transverse diameter is 7.27 cm.The single fruit weight is about 670 g. It has continuous fruit setting ability,and good commodity quality.Its average yield can be over 61.5 t·hm-2,the highest one can reach over 79.5 t·hm-2.It takes about 50 days from sowing to harvesting in Xining region.The whole growth duration is about 120 days.In fields,its resistance to powdery mildew is stronger than that of the contrast‘Zaoqingyidai’.It is suitable for planting in greenhouse the whole year round in Qinghai Province and in opening field at regions under 2 900 m altitude over summer.