不同栽培条件下草莓品种宁玉花序分化进程

Floral bud differentiation of strawberry Ningyu under conditions of forcing cultivation and open field cultivation

为探索草莓品种宁玉在促成和露地栽培条件下花序分化的过程及其所需时间,运用植物解剖学方法,观察植株前三花序的分化过程,并分析温度对花序分化的影响。结果表明,在促成和露地栽培条件下草莓品种宁玉前三花序的分化是连续不间断进行的,截止次年5月,在促成栽培条件下,有5个花序形成,而在露地栽培条件下仅观察到4个花序;草莓品种宁玉花序分化对温度要求不是很严格,但低温会导致后续花序分化的延后,且分化完成所需时间延长。因此,在生产实践中,尽可能通过一定的保温措施,尽量将棚内温度提高,缩短花序分化时间,从而达到丰产的目的。

To elucidate the process of floral bud differentiation of strawberry cv. Ningyu using anatomical methods under forcing cultivation and open field cultivation conditions,the floral bud differentiation of the first three inflorescence and the influence of temperature were observed. The results show that the flower bud differentiation of Ningyu is uninterrupted under both conditions. Til May of the following year,five inflorescence were formed under the condition of forcing cultivation,but only four inflorescence were presented under open field cultivation condition. The flower bud differentiation is not strict with temperature,but low temperature leads to the delayed differentiation of inflorescence. Therefore,in the production practice,warm-keeping measures need to be taken to shorten the time of flower bud differentiation so as to achieve high yield.