早熟番茄苗期光合特性的研究  

Photosynthetic Characteristics of Early maturing Tomato in Seedling Stage

作　　者：周春菊[1] 薛万新[1] 邹养军[1] 甘国斌 

机构地区：[1]西北农业大学实验中心

出　　处：《西北农业学报》1998年第1期60-63,共4页Acta Agriculturae Boreali-occidentalis Sinica

摘　　要：研究结果表明，早熟番茄苗期同一片真叶上不同部位侧生裂片的光合、蒸腾速率不同，其大小依次为中部＞顶部＞基部，叶温和气孔阻力正好相反。４个早熟品种净光合速率表现为秦粉２号＞西粉３号＞秦粉５号＞早丰，蒸腾速率为早丰＞秦粉２号＞秦粉５号＞西粉３号。秦粉２号、西粉３号两品种光合速率及蒸腾速率日变化为单峰型，无午休现象，其日变化趋势与有效光强变化趋势平行或一致。The results of this research showed that photosynthetic rate and transpiration rate of different parts of the same foliage of early maturing tomato seedling are different, the rate is high in the middle part, moderate in the tip and lower in the base part, but the leaf temperature and stomatal resistance is on the contrary Photosynthetic characteristics of four early maturing varieties have also differences In the same environmental conditions, the daily changes of photosynthesis and transpiration of two early maturing varieties tomato seedling are single peak curve, no noon break The trend of daily changes is identical with the trend of photosynthetically active radiation change, which indicated that light intensity is primary factor affecting its daily changes

关 键 词：早熟番茄 光合速率 蒸腾速度 番茄 苗期 

分 类 号：S641.201[农业科学—蔬菜学]