赤霉素发酵废渣对芥菜幼苗生长的影响  

Effects of Gibberellin Fermentation Residues on Brassica juncea L Seedling Growth

作　　者：彭霄鹏[1] 徐茂鑫[2] 

机构地区：[1]中国林业科学研究院,北京100091 [2]南京农业大学资源环境学院,南京210095

出　　处：《西北农业学报》2010年第6期126-129,147,共5页Acta Agriculturae Boreali-occidentalis Sinica

基　　金：国家自然科学基金项目(30571107)

摘　　要：比较了赤霉素发酵废渣不同施入量对芥菜（Brassica juncea L.）幼苗发芽率、单株生物量、叶绿素荧光参数、光合色素含量的影响。结果表明,赤霉素发酵废渣低施入量（0~0.25 g/kg）处理时,有利于芥菜种子萌发,而且能提高单株生物量;高施入量（〉1.0 g/kg）处理时不仅抑制芥菜种子萌发,而且会大幅度降低单株生物量;而中等施入量（0.25~1.0 g/kg）处理时,随赤霉素发酵废渣施入量的增大,不利于芥菜种子的萌发但却逐渐提高了芥菜的单株生物量。不同施入量的赤霉素发酵废渣处理对芥菜的初始荧光（F0）、最大荧光（Fm）和原初光能转换效率（Fv/Fm）都有明显的影响。综合分析认为,赤霉素施入量为0.5 g/kg处理的效果最佳。不同施入量赤霉素发酵废渣处理对芥菜的光合色素无明显影响。Solution experiments were conducted to investigate the effects of different amount of gibberellin fermentation residues （GFR） applications on germination rate, individual biomass, chlorophyll fluorescence parameters, photosynthetic pigment content of Brassica juncea L. The results showed that low amount of GFR application treatments （0-0.25 g/kg） were favorable to seed germination and increased individual biomass,while high amount of applications （〉1.0 g/kg） restrained seed germination and obviously reduced individual biomass,and middle amount of GFR application treatments （0.25-1.0 g/kg） were not favorable to seed germination but increased individual biomass with the amount of GFR application raising. Different amount of GFR application treatments had significantly effects on the original （F0） and maximal chlorophyll fluorescence parameter （Fv） and conversion efficiency of primary light energy （Fv/Fm）,meanwhile,no notable effect on photosynthetic pigment content. To sum up, the treatment of 0.5 g/kg is the best.

关 键 词：赤霉素 发酵废渣 芥菜 叶绿素荧光参数 

分 类 号：S637[农业科学—蔬菜学]