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当前位置: 首页 > 文章 > 紫甘蓝和普通甘蓝光合特性的比较 园艺学报 2008,35 (4) 547-552
Position: Home > Articles > Comparation of the Photosynthetic Characteristics of Purple Cabbage and Cabbage Acta Horticulturae Sinica 2008,35 (4) 547-552

紫甘蓝和普通甘蓝光合特性的比较

作  者：
王美玲;艾希珍;丁飞;王洪涛;梁文娟
单  位：
山东农业大学园艺科学与工程学院
关键词：
紫甘蓝;甘蓝;光合特性;花青素;温度补偿点
摘  要：
以‘早红’、‘红日’紫甘蓝为试材,分别用Unispec型光谱仪和Ciras-2型光合作用测定系统研究紫甘蓝色素含量及光合特性,并与普通甘蓝‘中甘11’作比较。结果表明,两个紫甘蓝品种的色素含量和净光合速率(Pn)差异不大。与普通甘蓝相比,紫甘蓝叶绿素含量较高,且含有较大比例的花青素,Pn明显降低。紫甘蓝生长过程中结球初期Pn最高,后期Pn降低幅度明显小于普通甘蓝,结球中期叶绿素含量最高,花青素含量随着生育期进展而逐渐升高。紫甘蓝Pn日变化呈单峰曲线型,峰值出现在10:00—11:00,其光补偿点为68.5μmo1·m-2·s-1,饱和点为1077.5μmo1·m-2·s-1,CO2补偿点为70.4μmo1·mol-1,饱和点为1140μmo1·mol-1,均略高于普通甘蓝。20℃条件下,紫甘蓝的Pn最高,其低温补偿点和高温补偿点分别为-4.4℃和51.3℃,均低于普通甘蓝。
译  名：
Comparation of the Photosynthetic Characteristics of Purple Cabbage and Cabbage
作  者：
WANG Mei-ling, AI Xi-zhen, DING Fei, WANG Hong-tao, and LIANG Wen-juan (College of Horticultural Science and Engineering, State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai'an, Shandong 271018, China)
关键词：
purple cabbage; cabbage; photosynthetic characteristics; anthocyanin; temperature compensation point
摘  要：
This study is to clarify the photosynthetic characteristics of purple cabbage, and the differences compared with cabbage. The pigment contents and photosynthetic characteristics of purple cabbage varieties‘Zaohong’ and‘Hongri’ were investigated by Unispec spectrometer and Ciras-2 photosystems respectively, and compared with a common cabbage variety‘Zhonggan 11’. The result showed that the two varieties of purple cabbage differ less in pigment content and photosynthetic rate (Pn), their chlorophyll content were higher, the Pn were lower than those of‘Zhonggan 11’. There were more proportion of anthocyanin in purple cabbage, but none in cabbage. The Pn of purple cabbage was highest in initial heading stage, and decreased by a less margin in last stage compared with that of cabbage. The chlorophyll content was the highest in middle heading stage, but the anthocyanin content increased as growing period getting along. The daily Pn varied in a single peak curve. The light compensation point and light saturation point of ‘Zaohong’ were 68.5 μmo1·m-2·s-1 and 1 077.5 μmo1·m-2·s-1 respectively, the CO2 compensation point and saturation point were 70.4 μmo1·mol-1 and 1 140 μmo1·mol-1, which were higher than those of ‘Zhonggan 11’. The Pn of ‘Zaohong’ was the highest in 20 ℃, its compensation point was -4.4 ℃ at low temperature but 51.3 ℃ at high temperature, which were lower than those of ‘Zhonggan 11’.

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