丝瓜新品种早冠丝瓜408的选育

A New Loofah Gourd Variety — ‘Zaoguansigua 408’

早冠丝瓜408是以S4为母本,以X08为父本配制而成的丝瓜一代杂种。熟性极早,春季栽培从播种至始收60~62d(天);植株蔓生,生长势和分枝性强;主蔓第5~8节着生第1朵雌花;果实长圆筒形,先端较圆,果皮绿色,单果质量0.4~0.8kg,果实纵径40~49 cm,横径3.8~4.1 cm,每667 m^2前期产量为1 100 kg左右,总产量可达3 200 kg左右。田间抗白粉病、霜毒病、疫病的能力强于对照亚华早丝瓜,适合长江流域及湖南地区早春大棚和露地栽培。

‘Zaoguansigua 408’ is a loofah gourd F1 hybrid developed by crossing ‘S4’ as female parent with ‘X08’ as male parent.This variety is of extremely early maturity.It takes about 60-62 days from sowing to harvesting.The plant is rampant with strong growth potential and branching ability.The first female flower grows on the 5-8 knob of the main vine.The fruit is of long cylindrical shape,the apex is round,and the peel is green in color.Its single fruit weight is 0.4-0.8 kg.The fruit is 40-49 cm in longitudinal diameter and 3.8-4.1 cm in transverse diameter.It can yield 16.5 t · hm^-2 at earlier stage and its yield of whole stages can reach 48.0 t · hm^-2.Its resistance to powdery mildew,downy mildew,and Phytophthora blight are better than that of the contrast ‘Yahuazaosigua’.It is suitable for cultivation in early spring greenhouses and open fields in the Yangtze River Basin and Hunan Province.