Container volume effects on morphology and physiology of tomato seedlings

被引：3
|
作者：
Mugnai, S [1 ]
Vernieri, P [1 ]
Tognoni, F [1 ]
Serra, G [1 ]
机构：
[1] Univ Pisa, Dip Biol Piante Agrarie, Ist Orticoltura, I-56124 Pisa, Italy
来源：
XXV INTERNATIONAL HORTICULTURAL CONGRESS, PROCEEDINGS - PT 6: CULTURE TECHNIQUES WITH SPECIAL EMPHASIS ON ENVIRONMENTAL IMPLICATIONS PHYSIOLOGICAL PROCESSES IN PLANTS | 2000年 / 516期
关键词：
Lycopersicon esculentum; abscisic acid; container; growth analysis; leaf gas exchange; root restriction;
D O I：
10.17660/ActaHortic.2000.516.5
中图分类号：
S3 [农学（农艺学）];
学科分类号：
0901 ;
摘要：
The effects of root restriction on morphology and physiology of tomato were investigated in seedlings grown in cells of different volume (230 mi, 35 mi, 7 mi) filled with vermiculite and irrigated with complete nutrient solution to prevent any shortage in water and nutrient supply. Root restriction reduced plant growth, in terms of dry weight and leaf area, and increased root/shoot ratio. Growth inhibition was due to a reduction in leaf area ratio and net assimilation rate. In our conditions, root restriction did not affect leaf water potential, leaf gas exchange and endogenous ABA content in both root and leaf tissues.
引用
收藏
页码：49 / 56
页数：8
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