摘要
用ＬＩ－６２００便携式光合仪田间测定３６个品种功能叶净光合强度（Ｐ_ｎ）及有关因子的结果：邻水红顶家麻等品种平均Ｐ_ｎ＞１５．６μｍｏｌｍ高Ｐ_ｎ品种ＣＯ＿２通量、胞间ＣＯ_２浓度和气孔导度均较高，而气孔阴力和气孔限制值较低；影向Ｐ_ｎ的主要因子是相对湿度和气孔导度（正相关）．及气孔阻力（负相关）。
Tbe net photosynthesis(P_n)of functional leaves and its related ecophysiobgical factors of36 ramie varieties were tested in the field with LI-6200 portable photosynthesis system,andthe resuIts were as follows:Variety Liiishui Hongdingjama and Litiyang Jigubai etc.showedthe highest Pnvalues, more than 15.6μmol m￣(-2)s￣(-2).The varieties with higher P_n had highervalues of CO_2,conductance,intercellufar CO_2 concentration and stomatal conductance,and lower stomatal resistance and stomatal limit.The signiflcant factors to Pnwere reIative humidity-and stomatal conductance(positive),and stomatai resistance (negative).
出处
《江西农业大学学报》
CAS
CSCD
1994年第3期231-235,共5页
Acta Agriculturae Universitatis Jiangxiensis
关键词
品种资源
净光合强度
生态生理因子
苎麻
ramie germplasm
net photosynthesis
eco-physiological factors
clusteranalysis.
