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1.1 引种时必须向育种者或委托制种单位详细了解双亲自交系的特征特性及生长发育情况。育种单位或委托制种单位应尽可能详细提供双亲自交系在育种地或某一地区同等条件下的实验数据,包括植物学特征和生物学特性。尤其是在同等播种条件下双亲自交系出苗——抽雄、抽雄——吐丝、抽雄——散粉相隔的天数,以便代繁单位结合本地气候特点调整播种期。 1.2 掌握上述情况,繁种单位就可以结合亲本特点、结合本地实际来确定双亲的播种期。正常情况下,从同纬度或相近纬度地区引种,如从东北向西北地区引种,由于纬度、气候特点较为相近,甲地的错期播种
1.1 Introduction must be breeder or commissioned seed unit in detail about the characteristics and growth of parental inbred lines. Breeding units or consignments shall, as far as possible, give details of the experimental data of the parents’ inbred lines under the same conditions in their breeding grounds or areas, including their botanical characteristics and biological characteristics. Especially in the same seeding conditions, the parents of inbred lines emergence - tasseled, tasseled - silking, tasseling - loose powder separated by the number of days, in order to facilitate the unit with local climate characteristics to adjust the sowing period. 1.2 grasp of the above situation, breeding units can combine the characteristics of the parents, combined with local conditions to determine the parents of the sowing period. Under normal circumstances, the introduction from the same latitude or similar latitude regions, such as the introduction from the northeast to the northwest region, due to latitude, climate characteristics are similar to a site of the wrong sowing