摘要
以甜樱桃吉塞拉系列砧木-吉塞拉6号(G6)、吉塞拉5号(G5)、Y1和B5的1 a生盆栽实生苗为试材,检测了其在干旱处理下的光合和叶绿素荧光参数。结果表明:干旱胁迫影响了吉塞拉砧木的叶绿素含量、光合参数和叶绿素荧光参数,各试材的净光合速率(Pn)、PSⅡ潜在活性(Fv/Fo)、实际原初光能转化效率(ΦPSⅡ)和表观电子传递速率(ETR)随胁迫程度的加重显著下降。干旱胁迫对吉塞拉砧木光合影响的效应既有品种间差异,又有处理间差异,轻度干旱促进了G5和B5的光合,而重度干旱胁迫对4种吉塞拉砧木的光合均产生抑制作用。
The photosynthesis and chlorophyll fluorescence parameters of one-year Gisela rootstocks seedlings,G6,G5,Y1,and B5,which were planted in pots,were determined under drought stress.The results showed that,the content of chlorophyll,photosynthesic parameter,and chlorophyll fluorescence parameter were influenced by drought stress.The value of net photosynthesis rate（Pn）,Fv/Fo,ΦPS Ⅱ and ETR declined obviously with the degree of drought stress.The differences of drought stress on Gisela rootstocks were significantly different among species and degree of drought stress,photosynthesis of G5 and B5 were promoted by mild drought stress,while photosynthesis of four rootstocks were inhibited by severe stress.
出处
《北方园艺》
CAS
北大核心
2010年第16期19-21,共3页
Northern Horticulture
基金
国家"863"计划资助项目(2006AA100108)
山东省农业良种工程项目资助项目(2005-2010)
关键词
干旱胁迫
吉塞拉砧木
光合参数
叶绿素荧光参数
drought stress
Gisela rootstock
photosynthesic parameter
chlorophyll fluorescence parameter
