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Performance of selected leafy vegetables under different shade levels

Author Affiliations

  • 1Department of Agronomy, Faculty of Agriculture, University of Jaffna, Sri Lanka
  • 2Department of Agronomy, Faculty of Agriculture, University of Jaffna, Sri Lanka

Res. J. Agriculture & Forestry Sci., Volume 8, Issue (1), Pages 53-56, January,8 (2020)


Cultivation of Leafy vegetables under shade house could be used to improve yield quantity and quality. Performance of leafy vegetables under different shade levels was studied from March to May of 2016 at Integrated Farm and Training Centre, Kanakarayan Kulam, Vavuniya, Sri Lanka. The experiment was arranged in randomized complete design with three replicates. Four types of leafy vegetables; Centella asiatica (Vallari), Amaranthus tricolor (Keerai), Ipomoea aquatic (Water spinach) and Lactuca sativa (Lettuce) were cultivated under 0%, 50% and 75% with three replicates. Evaluation was done based on the parameters of growth such as plant height, number of leaves, stem length, leaves to stem ratio and leaf area, yield and sensory attributes. The data were assessed through ANOVA test by using SAS computer software package for growth and yield parameters and Kruskal-Wallis test was performed for sensory assessment. Result revealed that the 50% shade level significantly increase the growth and yield of C. asiatica, A. tricolor and L. sativa, where 0% shade level enhance the growth and yield of I. aquatic. Similar correlation which was observed on the leafy vegetables in the sensory evaluation. Overall performance of the foliage was differed with different levels of shade. Therefore, it can be concluded that growth and yield of leafy vegetables were greatly influenced by 50 % shade level except I. aquatic. Present study suggest that Adoption of shade house techniques for leafy vegetables cultivation could improve overall growth and total yield to the farmers in vavuniya district.


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