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优芝5号系由山东省农科院区划所在鄂芝10号的基础上,经系统选育而成,1998年通过山东省品种委员会审定。河南省开封县大李庄乡农研会经多点次试验示范,均表现耐渍,耐旱,抗病等特点,每公顷产量一般2454公斤,比河南省当地品种增产69%,在具有水浇条件的高产地块,春播地膜覆盖,每公顷产量可达3768公斤。该品种属单杆型品种,株高150厘米左右,茎秆粗壮不倒伏,千粒重2.75克,种子含油量57.4%,为优质外贸出口商品,生育期95天。栽培技术要点如下:
Youzhi 5 by the Shandong Provincial Academy of Agricultural Sciences zoning is located on the basis of No. Eizi 10, the system selected from 1998 through the Shandong Provincial Commission for approval. Henan Province, Kaifeng County, Li Zhuang Township Institute of Agricultural Research after more than a demonstration, are resistant to stains, drought, disease resistance and other characteristics, yield per hectare is generally 2454 kilograms, 69% increase than the local varieties of Henan Province, Yield conditions of the high yield plots, spring sowing mulching, yield per hectare up to 3768 kilograms. The variety is a single bar type, plant height of about 150 cm, stalks do not lodging stalks, grain weight 2.75 grams, 57.4% of the oil content of seeds, for the export of high quality goods, the growth period of 95 days. Cultivation techniques are as follows: