影响茉莉花化控增花效果若干因素研究

Factors Affecting Flower Increasing Effciency of Jasmine By Chemical Controlling

针对茉莉花栽培中出现的营养生长过旺，而原有的化控调节剂——多效唑增花效果不理想等问题，通过田间及盆栽试验表明，调节剂种类及栽培条件能显著影响茉莉花化控增花效果。在田间试验中应用茉莉王具有良好的生物化控效应，年花产量５８７７．０ｋｇ／ｈｍ２，分别比对照和多效唑处理增产５８．３％＊＊和２８．６％＊。但当伏花孕育阶段供肥不足时，茉莉王增花效果比正常供肥相同处理的下降２８．０２％。在盆栽试验中，遮荫或对茉莉施加干旱胁迫，茉莉王化控的增花效果分别下降１９．５１和２８．９０个百分点。茉莉王是一种可供推广的复合型茉莉增花剂。配以良好的栽培技术条件，可充分发挥其增产潜力。

Vegetation growth in the Jasmine culturing process had been too vigorous and the flower increasing efficiency by PP 333 was not high,so the pot and field experiments were conducted,the results showed that the regulators and the cultural condition significantly affected the Jasmine flower increasing efficiency by chemical control.In the field experiment,the flower yield in the treatment of Moliwang was 5 877 0 kg/hm 2,was increased by 58 3% and 28 6% than those of control and PP 333 treatment respectively,but when the fertilizer was insufficient in the flower bud initiation stage,the efficiency was decreased by 28 02% than that of the normal fertilizer applying treatment.In the pot experiment,the efficiency was decreased by 19 51 and 28 90 percentage respectively by shading or drought stress treatments.Moliwang was an ideal regulator,when it was used with good cultural technique,flower increasing potential could be given full play.