The growth of young tomato fruit. II. Environmental influences on glasshouse crops grown in rockwool or nutrient film
The growth of young tomato fruit. II. Environmental influences on glasshouse crops grown in rockwool or nutrient film
复制标题
番茄幼果的生长。
DOI：
10.1080/00221589.1993.11516323
复制
发表时间：
1993
期刊：
影响因子：
--
通讯作者：
K. Hardwick
中科院分区：
文献类型：
--
作者：
B. Pearce;R. Grange;K. Hardwick
番茄植物在半商业温室条件下在营养膜溶液（用氯化钠调节以得到3至17 mS cm-1的电导率范围）或商业岩棉系统中生长。用位移传感器测量了这些植物上生长的幼果在一个季节内的膨胀率的日变化。在最小蒸腾需求的早期季节期间（4月）的果实膨胀率主要由温度决定，而不是密切相关的营养液的盐度。在季节中期（5月下旬至8月）的植物的水分状况，由营养传导性和蒸腾需求，生长速度的影响最大，减少了白天率的一半，预计从当时的温度。幼果在植物生长的季节晚（9月）表现出类似的增长模式在本赛季初观察到的。光照主要影响生长速率。
Tomato plants were grown in semi-commercial glasshouse conditions in either nutrient film solutions (adjusted with sodium chloride to give a range of electrical conductivities from 3 to 17 mS cm"1) or in a commercial rockwool system. The diurnal changes in expansion rate of young fruit growing on these plants were measured throughout a season using displacement transducers. Fruit expansion rate during the early season period of minimal transpirational demand (April) was determined mainly by temperature and was not closely related to the salinity of the nutrient solution. During mid-season (late May to August) the water status of the plants, determined both by nutrient conductivity and transpirational demand, had the greatest influence on growth rate, reducing the daytime rates to half that expected from the prevailing temperatures. The growth of young fruit on plants late in the season (September) showed patterns of growth similar to those observed early in the season. Irradiance mainly affected growth ra...