少刺型黄瓜新品种东农807的选育

A New Cucumber F_1 Hybrid—‘Dongnong 807’

东农807是利用优势育种法选育的黄瓜一代杂种。母本D0401是纯雌性自交系,父本D0327-4是高代稳定自交系。植株长势强,叶片深绿、茎秆粗壮,分枝少、主蔓结瓜,节成性好,5～6节以上每节有瓜。高抗枯萎病、细菌性角斑病,抗霜霉病、白粉病。瓜长18～20cm,横径3cm,单瓜质量140～160g,果实品质优良、商品性好,鲜食口感脆嫩、微甜,气味清香,标准瓜率达到90%。果实深绿,有光泽,少刺。瓜腔小于瓜横径1/2。一般每667m2产量为4500～5600kg。

‘Dongnong 807’is a new cucumber F1 hybrid bred by using heterosis breeding. The female parent D0401 was gynoecious inbred line, while the male parent D0327-4 was steady and high inbred line. It grows vigorously. Its leaf is dark green and the vine is stoutness. It bears fruits mainly in main stem with high fruit-setting rate and low branching rate. The first fruit starts at the 5th-6th node, and then every node has fruits. It is high resistant to Fusarium wilt and bacterial augular leaf spot disease, resistant to downy mildew and powdery mildew. The fruit is 18-20 cm in length, 3 cm in diameter, and 140-160 g in weight. Its fruit has high marketable quality with tender, crisp texture and sweetish flavors and the standard fruit rate is above 90 %. The fruit is dark green in color, lustrous with little tumor. The length of fruit cavity is below 1/2 smaller than that of fruit diameter. It can yield 67.5-84.0 t·hm^-2.