生态学杂志2012，Vol.31Issue(6)：1347-1352,6.
盐胁迫对不同品系杨树幼苗生长和叶绿素荧光的效应
Effects of NaCl stress on the growth and chlorophyll fluorescence characteristics of poplar seedlings
摘要
Abstract
In order to understand the salt-tolerance of poplar, the seedlings of poplar cultivars Nanyang No. 1 and Nanyang No. 2 bred by the Jiangsu Provincial Key Laboratory of Marine Biology were taken as the test materials to study their dry weight, water potential, chlorophyll content, chlorophyll fluorescence parameters, and light energy absorption and distribution under the stress of different concentrations NaCl. At low concentration (75 mmol · L-1 ) NaCl, the plant dry weight, chlorophyll content, qP, Yield, and ETR of Nanyang .No. 1 were significantly lower than those of Nanyang No. 2. The decrement of the water potential of Nanyang No. 1 was higher than that of Nanyang No. 2, while the Fm/Fv and Fm'/Fv' of the two cultivars had less change. At high concentration (150 mmol · L-1) NaCl, there were no significant differences in the inhibitory effects of salt stress on Nanyang No. 1 and Nanyang No. 2. Under salt stress, Nanyang No. 2 had higher average value of Pc but lower proportion of Hd than Nanyang No. 1, while the average value of Ex of the two cultivars had little difference. Above all, due to the higher activity of photosystem II , Nanyang No. 2 had higher salt-tolerance than Nanyang No. 1.关键词
NaCl胁迫/杨树/叶绿素荧光参数/光能吸收与分配Key words
NaCl stress/ poplar/ chlorophyll fluorescence parameter/ light energy absorption and distribution.分类
农业科技引用本文复制引用
武传兰,隆小华,金善钊,刘玲,王长海,刘兆普..盐胁迫对不同品系杨树幼苗生长和叶绿素荧光的效应[J].生态学杂志,2012,31(6):1347-1352,6.基金项目
国家科技支撑重大项目(2011BAD13B09)、公益性行业(农业)科研专项(200903001-05)和江苏省科技支撑项目(BE2011368)资助. （2011BAD13B09）
