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为了适应提高复种指数的要求,我们采用杂交与辐射相结合的方法,育成了早熟高产花生品种“辐矮50”。 “辐矮50”开花早、前期花数多,荚果发育快、充实快、饱满度高,全生育期110天左右,比亲本及当地推广品种早熟7—10天、一般产量高于推广品种,最高亩产达821斤。折仁率和含油量都较高,抗逆性良好。 “辐矮50”选育过程证明:杂交与辐射相结合是选育早熟高产品种的有效途径。在早熟性选育时要正确处理早花与早荚、早衰与早熟的关系,更要着重于荚果饱满度的选择。在丰产性的选育上把个体选择的重点放在第三代比较适宜,选择时必须正确处理果多果饱及果重(大小)之间的对立统一关系。同时,注意选择植株偏矮,直立抗倒,分枝中等,后期青叶多,不早衰等,才能有效地育成早熟高产的新品种。 在英明领袖华主席为首的党中央领导下,“农业学大寨”普及大寨县的革命群众运动正在蓬勃发展,改革耕作制度,提高复种指数,实行一年多熟,日益成为群众的普遍要求。特别近年来,我区中稻面积不断扩大,在水田地区“春花生、中稻、晚稻”和“早稻、中稻、秋花生”的一年三熟或二年七熟,以至一年四熟,将成为一种重要的耕作制度;在旱坡地随着灌溉条件的改善,过去“花生、蕃薯”二熟制,已经不能适应农业生产大发展的要求,“春花生、中稻、
In order to adapt to the requirement of improving multiple cropping index, we used the method of hybridization and radiation to breed the earliest and high-yielding peanut variety “Dwarf 50”. “Dwarf 50” flowering early, the early number of flowers, pod rapid development, full fast, plump, the whole growth period of about 110 days, than the local and local varieties to promote premature 7-10 days, the general output is higher than the promotion of varieties, The highest yield of 821 pounds. Po rate and oil content are higher, good resistance. “Dwarf 50” breeding process proves: hybridization and radiation is an effective way to breed precocious high-yielding varieties. In early maturity breeding should correctly handle the early flowering and early pod, premature aging and precocious puberty, but also to focus on the choice of plumpness. It is more appropriate to focus the individual selection on the third generation in the selection and breeding of high yield. The selection and selection must correctly deal with the unity of opposites between fruit and fruit full fruit weight (size). At the same time, pay attention to the selection of plants shorter, upright anti-down, middle branches, late leaves more, not premature aging, etc., can effectively bred new varieties of early maturity and high yield. Under the leadership of the Party Central Committee led by Chairman Hua, the wise leader, the revolutionary mass movement to popularize Dazhai County in the field of “learning from agriculture” is booming. Reforming the system of farming and raising the index of multiple cropping, the universal requirement of becoming more and more popular over the years, . In particular, in recent years, the area of medium-sized rice in our district has been continuously expanding. In the paddy fields, “Spring Peanut, Medium Rice, Late Rice” and “Early Rice, Medium Rice, Autumn Peanut” are cooked three or seven years in a year, An important tillage system; With the improvement of irrigation conditions in the drylands, “peanuts, sweet potatoes,” the second system, can no longer meet the requirements of the great development of agricultural production, "Chunhua, middle rice,