维生素B对若干常绿果树生长和光合作用的影响

Effects of Vitamin B on Growth and Photosynthesis of Several Evergreen Fruit Trees

橄榄和龙眼实生苗每株上施ＶＢ１、ＶＢ５、ＶＢ６．各１００×１０－６混合液５０ｍＬ２次，植株叶片叶绿素ａ、ｂ的含量分别比对照增加３６．３７％、５４．８８％和７５．００％、２８．８６％，叶片光合速率分别比对照增加１１６．１９％和１３２．１０％．成年柚树喷施ＶＢ１、ＶＢ５、ＶＢ６各５０×１０－６混合液２次，叶片叶绿素ａ、ｂ的含量分别比对照增加２２５．００％和２０．６８％．叶片光合速率比对照增加９４．３８％，叶片和栅状组织以及新梢粗度均比对照明显增加．柚苗和橄榄苗经ＶＢ处理后，茎粗增长加快，生产上可用于促进枝梢生长和缩短嫁接育苗的时间．

Bach tree of Cancarium album seedling and Dimocarpus longan seedling were spreed with 50 mL 100× 10-6 vitamin B1,B5 and B6 for two times, the amount of chlorophyll a in leaves increased 36.37%,54.88% and chlorophyll b 75.00%,28.86% over the control, respectively,and photosynthetic rate in leaves increased 116.19% and 132.10% over the control, respectively. Spraying two times on mature tree of Citrus garadis with vitamin B1 B5 and B6 50 ×10-6,it could increase 225.00% and 20.68% of content of chlophyll a and chlorophyll b in leaves over the control,and increase 94.38% of photosynthetic rate in leaves over the control,and obviously increasw thickness both leaves and palisade tissue and enlarged diameter of braches The treatment of B1 B5and B6 on seedling of Citrus garadis and Cancarium album promoted the enlarging of diameter of stalk.This method could be used to shorten the periob of culturing graft planting.