CAJ | 학술논문

　　以高原高寒地区日光温室延后栽培红地球葡萄为试材，研究了其在果实膨大期、转色期和成熟期光合特性和叶绿素含量的变化。结果表明：不同物候期红地球葡萄净光合速率（Pn）日变化均呈双峰曲线变化趋势，有光合午休现象；从果实膨大期、转色期到成熟期，Pn日变化的峰值和均值逐渐降低；膨大期和成熟期 Pn午休主要是非气孔限制所致，转色期 Pn午休主要是气孔限制引起；日光温室延后葡萄栽培可以极大地提高葡萄 WUE ，冬季低温季节表现更明显；Chla、Chlb和Chl（a＋b）含量均为膨大期＞转色期＞成熟期，成熟期Chlb表现显著下降；Pn同Chlb呈显著正相关关系。
　　이고원고한지구일광온실연후재배홍지구포도위시재，연구료기재과실팽대기、전색기화성숙기광합특성화협록소함량적변화。결과표명：불동물후기홍지구포도정광합속솔（Pn）일변화균정쌍봉곡선변화추세，유광합오휴현상；종과실팽대기、전색기도성숙기，Pn일변화적봉치화균치축점강저；팽대기화성숙기 Pn오휴주요시비기공한제소치，전색기 Pn오휴주요시기공한제인기；일광온실연후포도재배가이겁대지제고포도 WUE ，동계저온계절표현경명현；Chla、Chlb화Chl（a＋b）함량균위팽대기＞전색기＞성숙기，성숙기Chlb표현현저하강；Pn동Chlb정현저정상관관계。
In fruit enlargement ,colouring and maturity period ,the changes of photosynthetic characteristics and chlorophyll contents in“Red Globe”grape were studied under delayed cultivation in greenhouse in alpine region .The re-sults showed that the diurnal variation of Pn appeared as double-peak curve and there was a “noon break” phenomenon in all phenophases .The peak and average value of diurnal Pn reduced gradually from fruit enlargement ,colouring to ma-turity period .The“noon break”phenomenon in fruit enlargement and maturity period was mainly caused by non-stomatal limitation ,but that in colouring period was mainly caused by stomatal limitation .Delayed cultivation in greenhouse could remarkably increase WUE of grape ,which was more effective when the temperature was low in winter .The contents of Chla ,Chlb and Chl(a+b) were wholly ordered as :enlargement period> colouring period>maturity period ,and the content of Chlb reduced significantly in maturity period .There was a significant positive relationship between Pn and Chl b content .