Volume 17, Issue 6 (2015)                   JAST 2015, 17(6): 1585-1596 | Back to browse issues page

‎ 20.1001.1.16807073.2015.17.6.7.8

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Segura-Monroy S, Uribe-Vallejo A, Ramirez-Godoy A, Restrepo-Diaz H. Effect of Kaolin Application on Growth, Water Use Efficiency, and Leaf Epidermis Characteristics of Physallis peruviana Seedlings under Two Irrigation Regimes. JAST 2015; 17 (6) :1585-1596
URL: http://jast.modares.ac.ir/article-23-2523-en.html
Effect of Kaolin Application on Growth, Water Use Efficiency, and Leaf Epidermis Characteristics of Physallis peruviana Seedlings under Two Irrigation Regimes
S. Segura-Monroy1 , A. Uribe-Vallejo1 , A. Ramirez-Godoy1 , H. Restrepo-Diaz * 2
1- Departamento de Agronomía, Facultad de Ciencias Agrarias, Universidad Nacional de Colombia, Bogotá, Colombia.
2- Departamento de Agronomia, Universidad Nacional de Colombia, Campus Bogotá
Abstract:   (8691 Views)
The anatomical and epidermal characteristics, as well as the physiological response, of 'Colombia' ecotype cape gooseberry plants treated or untreated with foliar applications of kaolin at 2 irrigation levels (well-irrigated plants vs. water-stressed plants) were evaluated. Relative Water Content (RWC), stomatal density, and chlorophyll index were reduced under water stress. Water stress increased leaf temperature and trichome density. In water-stressed plants, the foliar application of kaolin decreased transpiration rates, leaf temperature, trichome density, and leaf thickness. Kaolin also improved the plant height, total plant dry mass, water-use efficiency, and increased stomatal density in water-stressed plants. The results suggest that kaolin may be a useful tool to mitigate the negative effects of water stress and may improve the efficient use of water in cape gooseberry plants with especial water conditions.
Keywords: Leaf characteristics, Leaf transpiration, water stress
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Article Type: Research Paper | Subject: Horticultural Science
Received: 2014/02/4 | Accepted: 2014/11/23 | Published: 2015/11/1
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