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
出处
《西北农业学报》
CAS
CSCD
1998年第1期60-63,共4页
Acta Agriculturae Boreali-occidentalis Sinica
关键词
早熟番茄
光合速率
蒸腾速度
番茄
苗期
Early maturing tomato
Photosynthetic rate
Transpiration rate
