Indriyanto, . (2023) THE RELATIONSHIP BETWEEN THE PERCENTAGE OF SOLAR RADIATION UNDER THE SHADE OF STAND AND THE GROWTH OF CARDAMOM. Jurnal Sains Natural, 13 (1). pp. 1-13. ISSN 2086-3446

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Abstract

Cardamom can live under the shade of a stand but require adequate shade for optimum growth. This research aims to determine the relationship between the percentage of solar radiation under the shade of a stand on the growth of cardamom, to determine the stands that have the best effect on the growth of cardamom, and to estimate the percentage of solar radiation that affects the optimum growth of cardamom. The research was conducted in 5 farmer-cultivated areas planted with cardamom in Tahura Wan Abdul Rachman. In each farmer's arable area, three plots of 5 m x 5 m were made, which were placed randomly to observe the growth of cardamom. The data collected includes the growth of cardamom, tree species, solar radiation, air temperature, and humidity. The data were analyzed by quadratic regression at the 5% significance level. The results showed that the percentage of solar radiation intensity under the shade of forest garden stands significantly affected the growth of cardamom. The stands are composed by durian, clove, nutmeg, and petai trees with a distance of 3.55 m between trees, the percentage of solar radiation intensity under the stand is 54.0%, the air temperature is 28.5 oC, and the humidity is 86.3% the best effect on the number of pods and the good effect on the number of flower bunches compared to other stands. The highest number of cardamom pods was 10.7 per bunch, and the highest number of flower bunches was 23.6 flower bunches per clump. All cardamom growth variables were significantly related quadratic to the percentage of solar radiation in the shaded stands. It was predicted that the shade of the stands, which can be the optimum place for cardamom to grow, is the shade with a percentage of solar radiation in the range of 54.0% to 67.0%.

Item Type:	Article
Subjects:	S Agriculture > SD Forestry
Divisions:	Fakultas Pertanian (FP) > Prodi Kehutanan
Depositing User:	INDRIYANTO
Date Deposited:	20 Jan 2023 02:00
Last Modified:	20 Jan 2023 02:00
URI:	http://repository.lppm.unila.ac.id/id/eprint/47884

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