摘要
叶面喷洒适宜浓度的ＰＰ可明显抑制桃幼树的新梢生长量、新梢粗度、副梢萌发数、副梢长度，促进新梢提早停长，提高叶片叶绿素含量和光合速率，提高越冬期花叶芽抗寒能力。效果最好的是１５００ｐｐｍ喷布两次的处理，２０００ｐｐｍ喷一次处理效果也较好。
The leaf surface of young peach trees were sprayed with PP333 at suitable concentration. The results showed that PP333 could obvious inhibite the growth rate and length in diameter of new shoot,the secondary branch Iength and sprouting amount,accelerated new shoot to stop growth earlier and increased the chlorophyll content and photosynthesis rate,and improved the hardiness of flower bude and leaf buds of over winter period.The optimal treatment was leaf sprayed with PP333, twice a year at the content of 1500ppm.
出处
《特产研究》
1994年第1期10-12,62,共4页
Special Wild Economic Animal and Plant Research
关键词
桃
PP333
生长
抗冻性
Peach, PP333, Nutritional growth, Hardiness Original Article on Page:10
