赤霉素对‘凯特芒’花期调控试验

在不同起始时间对‘凯特芒’喷施不同浓度的赤霉素，研究赤霉素对攀西地区‘凯特芒’花期调控影响。试验表明：从起始处理时间11月30日开始喷施0．005％～0．01％赤霉素推迟‘凯特芒’花期效果较好，花序出现期推迟22～42d，始花期推迟4～11d，盏花期推迟7～12d，单株成花率为100％；在起始处理时间A1、A2下，喷施浓度≥0．01％赤霉素‘凯特芒’单株成化率下降。

A Study on Control of Flowering with Gibberellin Treatment in the Mango Keitt

the mango keitt was treated by gibberellin（GA3）at different starting time to study the effect of gibberellin（GA3）on control of flowering in Panxi area. The results showed that starting to treat the mango by gibberellin（GA3）with the concentration of 0.005% -0.01% at the november 30th could effectively postpone the flowering of mango keitt, inflorescence appearing period deferred 22-42 days, beginning flowering period deferred 4- 11 days,full blossom period deferred 7- 12 days, the plant flowering rate was 100 %.With the teatment time A1 and A2, if the concentration of gibberellin（GA3）exceeded 0.01% ,the plant flowering rate would decline.