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该品种系山东省农科院作物所1975年以跃进4号为母本,7110为父本,通过有性杂交选育而成。1985年经山东省农作物品种审定委员会审定定名。特征特性:鲁豆4号株高60—80厘米,主茎14节左右,茎秆粗壮,短分枝,株型较好,叶片较大,卵圆形,花白色,茸毛棕色,有限结荚,顶端荚簇生,全株着荚密集,二、三粒荚居多,荚熟时褐色,籽粒椭圆形,种皮黄色褐脐。常年百粒重18克左右。属夏播早熟种,生育日数约90天,较文丰5号、文丰7号早熟3天。抗旱抗涝,高抗病毒病,耐孢囊线虫病。其营养生长阶段较短,生殖生长阶段较长。喜肥
The varieties of Shandong Academy of Agricultural Sciences Crops in 1975 to Yue 4 as the female parent, 7110 as the male parent, through sexual cross breeding. In 1985 by the Shandong Provincial Crop Variety Approval Committee validated. Characteristics: Lu Dou 4 plant height of 60-80 cm, the main stem of about 14, stem sturdy, short branches, plant type is better, larger leaves, oval, white flowers, hairy brown, limited pods , The top pod cluster, the whole plant pods intensive, mostly two or three pods, pods cooked brown, oval seed, yellow brown umbilical seed coat. Perennial hundred weight 18 grams. Summer sowing is a precocious species, fertility days about 90 days, compared to Wenfeng 5, Wenfeng 7 precocious 3 days. Drought and waterlogging, high anti-virus disease, cyst nematode resistance. Its vegetative growth stage is shorter, its reproductive growth stage is longer. Hi fat