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研究了“九二○”、花信灵、云大120、爱多收等生长调节剂和尿素、钾肥、硼肥、锌肥等肥料对籼型不育系安丰A抽穗期、开花期以及柱头活力的影响。结果表明:幼穗分化Ⅵ期末补施尿素和硼肥、喷施花信灵或云大120,并在始穗期喷施“九二○”对延长安丰A柱头活力具有明显作用;幼穗分化Ⅵ期末施用尿素和钾肥、并在始穗后喷施“九二○”能防止安丰A颖花退化,起到保花促花并使单穗日开花高峰与时开花高峰提前的作用,有利于母本与父本的花时相遇。花信灵等其它激素能在一定程度上延长安丰A柱头活力、提早花时,但在幼穗分化Ⅵ期末使用易造成安丰A低位节间伸长而倒伏,在安丰A繁殖制种中不提倡使用。
The effects of various fertilizers such as “920”, Huaxinling, Yundao 120, Ziziphus jujuba Mill. On growth regulators and urea, potassium, boron and zinc fertilizers on the heading date, Period and stigma vitality. The results showed that supplementation of urea and boron fertilizer at the end of the Ⅵ phase of panicle differentiation, spraying of HuaXinLing or YunDa 120, and spraying “Ji’Oao” at the beginning of panicle had a significant effect on prolonging the stigma activity of Anfeng A; Spike differentiation at the end of the application of urea and potassium at the end of the period, and after the beginning of spike spraying “900 ” to prevent Anfeng A spike degradation, played to protect the flowers and flowers to make the peak and peak flowering on a single day peak The role of early, is conducive to the mother and father’s flower encounter. Huaxin Ling and other hormones can extend the abundance of Anfeng A stigma to a certain extent and take time earlier. However, it is easy to cause the elongation of An Feng A low internode elongation and lodging at the end of young panicle differentiation VI, Do not advocate the use of.