改变根区温度对番茄生长、转移、碳交换率和叶片淀粉积累的影响。
Effect of altering the root-zone temperature on growth, translocation, carbon exchange rate, and leaf starch accumulation in the tomato.
机构信息
Department of Horticulture and Forestry, Rutgers University, New Brunswick, New Jersey 08903.
出版信息
Plant Physiol. 1983 Sep;73(1):46-50. doi: 10.1104/pp.73.1.46.
Tomato seedlings (Lycopersicon esculentum Mill. cv Vendor) were grown hydroponically with their root systems maintained at a constant temperature for a 2-week period commencing with the appearance of the first true leaf. Based on fresh and dry weight and leaf area, the optimal root-zone temperature for seedling growth was 30 degrees C. The carbon exchange rate of the leaves was also found to increase with rising root-zone temperature up to 30 degrees C. However, a more complex relationship seems to exist between root-zone temperature and the accumulation of (14)C-labeled assimilates in the roots; inasmuch as there is no enhancement in this accumulation at the most growth promoting root-zone temperatures (22-30 degrees C).
番茄幼苗（Lycopersicon esculentum Mill. cv Vendor）在根系恒温和水培条件下生长，从第一片真叶出现开始持续 2 周。基于鲜重、干重和叶面积，幼苗生长的最佳根区温度为 30℃。还发现叶片的碳交换率随着根区温度上升到 30℃而增加。然而，根区温度与（14）C 标记的同化产物在根系中的积累之间似乎存在更复杂的关系；因为在最有利于生长的根区温度（22-30℃）下，这种积累并没有增强。
Zotero 插件