Agronomical and Physiological Characters of Kaffir Lime (Citrus hystrixDC) Seedling under Artificial Shading and Pruning

  • Rahmat Budiarto, Roedhy Poerwanto Graduate School of Bogor Agricultural University, Bogor, 16680, Indonesia; Department of Agronomy and Horticulture, Bogor Agricultural University, Indonesia
  • Edi Santosa, Darda Efendi, Andria Agusta Center for Tropical Horticulture Studies, Bogor Agricultural University, Indonesia; Research Center for Biology, Indonesian Institute of Science, Bogor, 16911, Indonesia

Abstract

Kaffir lime (Citrus hystrix DC) is a minor citrus and its leaves are locally used for spices and essential oils. This study aimed to evaluate agronomical and physiological characters of kaffir lime seedling under modified cultural practices in order to improve leaf production. Shading and pruning were applied on five-month-old seedling during the rainy season, November 2017 to March 2018 in Bogor, Indonesia. The results showed that shading significantly improved the plant growth by 84%, and leaf number by 37%. Pruning treatment reduced the plant height by 8% and increased the shoot number by 20%. However, leaf production was more influenced by shading rather than pruning, with an increase for about 59% than control. This study also revealed a significant improvement on photosynthetic rate, stomatal conductance and water use efficiency on shaded lime for about 13%, 8% and 14%, respectively. Leaf pigment was also altered in response to shading, i.e the increasing chlorophyll B by 23% and the reduction anthocyanin by 38% on shaded lime. Mild shading with 24% light reduction is recommended to gain the leaf production of kaffir lime seedling.

Keywords: chlorophyll, pinching, photosynthesis, leaf production, stomatal conductance
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How to Cite
Roedhy Poerwanto, R. B., and E. S. D. Efendi, Andria Agusta. “Agronomical and Physiological Characters of Kaffir Lime (Citrus HystrixDC) Seedling under Artificial Shading and Pruning”. Emirates Journal of Food and Agriculture, Vol. 31, no. 3, May 2019, pp. 222-30, doi:https://doi.org/10.9755/ejfa.2019.v31.i3.1920. Accessed 13 Nov. 2019.
Section
Research Article