CAJ | 학술논문

以南疆地区4个杏品种‘阿克乔儿胖’、‘克孜郎’、‘胡安娜’和‘大佳娜丽’为材料研究它们在当地生态环境下的光响应曲线、净光合速率（Pn）、蒸腾速率（Tr）和水分利用效率（WUE）。采用 LI －6400XT 对杏树光合作用相关指标进行测定。结果表明，随着光强增加，各品种的净光合速率均相应升高，在相同的光照强度下，‘克孜郎’的净光合速率最高。各品种光补偿点的顺序由低到高为：‘大佳娜丽’＜‘克孜郎’＜‘阿克乔儿胖’＜‘胡安娜’。‘阿克乔儿胖’的光饱和点为935μmol?m －2?s －1，明显低于其它品种。4个杏品种净光合日变化均呈双峰曲线变化，但‘胡安娜’光合午休现象不明显。不同品种的蒸腾日变化基本呈单峰变化规律，‘大佳娜丽’、‘克孜郎’、‘阿克乔儿胖’和‘胡安娜’的日均蒸腾速率分别为4．2、3．9、3．4、2．7μmol?m －2?s －1。‘胡安娜’的蒸腾速率较低，但水分利用效率较高，且全天变化比较平稳。以上各品种的光合生理数据将为指导南疆地区杏树栽培管理、良种选择和果粮间作提供理论基础。
이남강지구4개행품충‘아극교인반’、‘극자랑’、‘호안나’화‘대가나려’위재료연구타문재당지생태배경하적광향응곡선、정광합속솔（Pn）、증등속솔（Tr）화수분이용효솔（WUE）。채용 LI －6400XT 대행수광합작용상관지표진행측정。결과표명，수착광강증가，각품충적정광합속솔균상응승고，재상동적광조강도하，‘극자랑’적정광합속솔최고。각품충광보상점적순서유저도고위：‘대가나려’＜‘극자랑’＜‘아극교인반’＜‘호안나’。‘아극교인반’적광포화점위935μmol?m －2?s －1，명현저우기타품충。4개행품충정광합일변화균정쌍봉곡선변화，단‘호안나’광합오휴현상불명현。불동품충적증등일변화기본정단봉변화규률，‘대가나려’、‘극자랑’、‘아극교인반’화‘호안나’적일균증등속솔분별위4．2、3．9、3．4、2．7μmol?m －2?s －1。‘호안나’적증등속솔교저，단수분이용효솔교고，차전천변화비교평은。이상각품충적광합생리수거장위지도남강지구행수재배관리、량충선택화과량간작제공이론기출。
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 .