CAJ | 학술논문

利用LI－6400便携式光合仪对长梗黄精、多花黄精、黄精、玉竹的光合生理特性进行测定，结果表明：（1）4种黄精属植物净光合速率（Pn）日变化均呈明显的单峰曲线，气孔导度、蒸腾速率与光合速率呈正相关，胞间CO：浓度与光合速率呈负相关。（2）光合有效辐射是影响4种黄精属植物生长的最主要因子，其他因子是蒸腾速率和胞间CO2浓度。（3）多花黄精为中性草本植物，长梗黄精、黄精、玉竹为中偏阳性草本植物。
이용LI－6400편휴식광합의대장경황정、다화황정、황정、옥죽적광합생리특성진행측정，결과표명：（1）4충황정속식물정광합속솔（Pn）일변화균정명현적단봉곡선，기공도도、증등속솔여광합속솔정정상관，포간CO：농도여광합속솔정부상관。（2）광합유효복사시영향4충황정속식물생장적최주요인자，기타인자시증등속솔화포간CO2농도。（3）다화황정위중성초본식물，장경황정、황정、옥죽위중편양성초본식물。
Factors were measured on the photosynthesis physiological characteristics of the 4 species Polygonatum filipes, Polygonatum cyrtonema, Polygonamm sibiricum and Polygonatum odoraturn with Li-6400XT Portable Photosynthesis Analyzer. The following were the results. ① The diurnal variations of the net photosynthetic rate (Pn) of the four Polygonatum species all showed a significant single-peak curve. There was a positive correlation between the photosynthetic rate and the stomatal conductance and transpiration rate, and a negative correlation between the photosynthetic rate and the intercellular CO2 concentration. ② The photosynthetic active radiation was the primary growth-affecting factor for the 4 Polygonatum species, and the other factors were the transpiration rate and intercellular CO2 concentration. ③ P. cyrtonema is a neutral herb, while t9. filipes, P. sibiricum and Polygonatum odoratum are partial heliophilous herbs.