干旱地区农业研究Issue(2)：102-105,175,5.DOI:10.16302/j.cnki.1000-7601.2015.02.017
四个南疆杏树品种的光合生理特性
Photosynthetic characteristics of apricot cultivars (Prunus armeniaca) in southern Xinjiang regions
摘要
Abstract
To investigate the photosynthetic characteristics including light response curve , net photosynthetic rate ( Pn ) ,transpiration rate ( Tr ) and water use efficiency ( WUE ) of four apricot cultivars , Akeqiaoerpan , Kezilang , Huanna and Dajianali in their local ecological environment ,an Li-6400XT was used to measure the related physiological indexes .The results indicated that Pn values of different varieties all became increased correspondingly with the increase of light intensity .The Pn of Kezilang was the highest among all cultivars .The levels of light compensation point was in order of Dajianani < Kezilang < Akeqiaoerpang < Huanna .Light saturation point of Akeqiaoerpan was 935μmol・m-2・s-1 ,significantly lower than that of others .Diurnal variations of Pn of the cultivars were in a bimodal curve ,but mid-day depression phenomenon of ‘Huanna’ was not obvious .The diurnal variations of transpiration of different species showed a unimodal curve mode .The average daily transpiration rates of Dajianani ,Kezilang ,Akeqiaoerpang and Huan-nawere 4 .2 ,3 .9 ,3 .4 ,2 .7μmol・m-2・s-1 ,respectively .It was found that Huana had low transpiration rate ,high wa-ter use efficiency and relatively stable changes during a day .All the above photosynthetic physiological data for the culti-vars would provide a theoretical basis for apricot cultivation and management ,seed selection and fruit crop intercropping in southern Xinjiang regions .关键词
杏/南疆地区/光响应曲线/光合日变化Key words
4 apricot cultivars/southern Xinjiang regions/light response curve/diurnal variation of Pn分类
农业科技引用本文复制引用
姜凤超,孙浩元,王玉柱,杨丽,张俊环..四个南疆杏树品种的光合生理特性[J].干旱地区农业研究,2015,(2):102-105,175,5.基金项目
林业公益性行业科研专项（201004037），公益性行业（农业）科研专项（201003043－03）；国家科技支撑计划课题（2014BAD16B04）；北京市科委重大项目 （）
