多效唑对一串红生长和开花的影响

Effects of Peclobutrazol (PP_(333)) on Growth and Flowering of Salvia spendens

作者用不同浓度的多效唑(PP_(333))对一串红进行了叶面喷施试验。结果表明:PP_(333)能明显地抑制一串红的茎与叶的生长,使植株矮化,节间缩短;叶片变小,叶色加深;花序粗壮,花序数增加,花色艳丽,提高了观赏价值。应用PP_(333)对一串红叶面喷施时,500～1000ppm的浓度是适宜的。

Foliage spray experiments were made by using PP333 water solution in different concentrations. The results showed that PP333 could enable the stalk and leaf growth of Saluia splendens to inhibit obviously, not only make it's plant stunt, internode shorter, leaf smaller, leaf color deeper, inflorescence stouter, number of inflorescence much more, but also make flower color more gorgeous, thus increasing value in view. The concentration of 500～1000 ppm was optimum in this case.