PDF《红栌与黄栌苗期生理生态特性研究》

6 个月后红栌的苗高、 地径生长量分别 为1.13 m、 0.36 cm, 黄栌的苗高、 地径生长量分别为 0.41 m、 0.30 cm, 红栌的生长速度明显快于黄栌. 红栌与黄栌苗期生理生态特性研究 尚小泉, 傅松玲 , 李宏开 (安徽农业大学, 安徽合肥 230036) 摘要 [目的] 了解黄栌和红栌的光合生理生态特性. [方法] 在室外条件下, 以从安徽省林科院合肥苗圃引种的

2 年生的美国红栌和 黄栌为试材, 对它们的光合特性及相关的生理生态因子进行测定, 系统研究美国红栌和黄栌的生理生态特性. [结果] 在同等立地条 件下, 所引种的黄栌的移栽成活率要略高于红栌, 但成活后红栌的生长速度要明显快于黄栌. 在晴天条件下,

2 个品种的净光合速率、 气孔导度和蒸腾速率的变化趋势基本一致, 黄栌的光饱和点和补偿点较红栌的低.

2 个品种净光合速率的日变化曲线呈现不对称双 峰曲线, 峰值出现在 9:00 和15:00 左右;

净光合速率在中午明显降低, 午休 现象明显. [结论] 该研究为美国黄栌和红栌进一步引种 与栽培提供理论依据. 关键词 黄栌;

红栌;

生理特性;

光合生理 中图分类号 S718.3 文献标识码 A 文章编号 0517-6611 (2008) 17-07203-02 Study on the Physiological and Ecological Characteristics of Continus coggygria L. cv. Purpureus and Cotinus coggygria in Seedling Stage SHANG Xiao蛳quan et al (Anhui Agricultural University, Hefei, Anhui 230036) Abstract [Objective] The research aimed to get know of the photosynthesis physiological and ecological characteristics of Continus coggygria L. cv. Purpureus and Cotinus coggygria .[Method] Under outdoor conditions, 2蛳year蛳old C. coggygria cv. Purpureus and C. coggygria introduced by Heifei Nursery of Anhui Academy of Forestry were taken as tested materials, their photosynthetic characteristics and the related physiological and ecological factors were determined. And the physiological and ecological characteristics of C. coggygria Purpureus and C. coggygria were systemically studied. [Result] Under the same site conditions, the transplanting survival rate of the introduced C. coggygria was slightly higher than that of C. coggygria cv. Purpureus. But the growth rate of C. coggygria cv. Purpureus was obviously faster than that of C. coggygria after surviving. Under sunny conditions, the net photosynthetic rate, stomatal conductance and transpiration rate of

2 species had the consistent change tendency and the light saturation point and compensation point of C. coggygria were lower than that of C. coggygria cv. Purpureus. The daily change curve of

2 species showed an asymmetric double 蛳peak curve and the peaks appeared at about 9:00am and 15:00pm. The net photosynthetic rate was obviously reduced and midday depression phenomenon was obvious. [Conclusion] The research provided the theoretical basis for further introduction and cultivation of C. coggygria cv. Purpureus and C. coggygria. Key words Cotinus coggygria;

C. coggygria Purpureus ;

Physiological characteristics;

Photosynthetic physiology 安徽农业科学袁允燥怎则灶葬造 燥枣 粤灶澡怎蚤 粤早则蚤援 杂糟蚤援 圆园园8袁36渊17冤院7203-7204袁7213 责任编辑 理雪莲 责任校对 马君叶 品种 Cultivar 引种数 Introduction number椅株 成活率 Survival rate椅% 移栽前 Before transplanting 移栽后 After transplanting 苗高 Seedling height椅m 地径 Ground diameter椅cm 苗高 Seedling height椅m 地径 Ground diameter椅cm 黄栌 Cotinus coggygria Scop