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向日葵有性杂交是品种选育和品种改良的重要手段。在杂交授粉时,应掌握以下技术环节。1.选株套袋:亲本组合确定之后,在向日葵现蕾末期就应注意观察选择株型标准、无病,父、母本花期能相迂的植株配对,当花冠即将开放或已经开放但雄蕊尚未散粉时,即用纱布制成的口袋将父、母本花盘套上并扎紧,防止蜜蜂和其他昆虫传粉,准备进行人工授粉。
Sexual hybridization of sunflower breeds is an important means of breeding and variety improvement. In the cross-pollination, should grasp the following technical aspects. 1. Selection bagging: After determining the combination of the parent, the end of the sunflower budding should pay attention to select the type of plant selection criteria, disease-free, parental, female flower phase can be phase matching plant pairing, when the corolla is about to open or has been opened, but the stamens When the powder is not yet scattered, the pockets made of gauze will be put on the parental and female parent flower disks tightly to prevent bees and other insects from pollination and prepare for artificial pollination.