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Vol.4 , No. 1, Publication Date: Jan. 8, 2018, Page: 1-6
 and 3517 (61%). The four treatments of light regimes are L<sub>1</sub> = 100% light, L<sub>2</sub> = 61% light, L<sub>10</sub> = 5 weeks in 100% light, thereafter in 61% light and L<sub>20</sub> = 5 weeks in 61% light, thereafter in 100% light. The seeds of the soybean were sown at the rate of five seeds (P<sub>5</sub>), three seeds (P<sub>3</sub>) and one seed (P<sub>1</sub>). They were watered daily with 200 ml of tap water in the morning and 200 ml of tap water in the evening until they were fully established. The results obtained showed shoot height, number of leaves and leaf area of soybeans were more enhanced under 61% light or partial light intensity and when sown at the rate three seeds (P<sub>3</sub>). The yield components of soybean were more enhanced when placed in 5 weeks in 100% light, thereafter in 61% light and when sown at the rate three seeds (P<sub>3</sub>). This study concluded that better growth and yield were obtained with partial light (L<sub>2</sub>) with three planting density (P<sub>3</sub>).&picture=http://www.aascit.org/aascit/decorators/img/journal/980.jpg)
| [1] | Olowolaju Ezekiel Dare, Botany Department, Faculty of Science, Obafemi Awolowo University, Ile Ife, Nigeria. |
| [2] | Adelusi Adekunle Ajayi, Botany Department, Faculty of Science, Obafemi Awolowo University, Ile Ife, Nigeria. |
| [3] | Ogunboye Kehinde Dorcas, Botany Department, Faculty of Science, Obafemi Awolowo University, Ile Ife, Nigeria. |
| [4] | Afolabi Akinjide Moses, Botany Department, Faculty of Science, Obafemi Awolowo University, Ile Ife, Nigeria. |
| [5] | Okunlola Olarewaju Gideon, Department of Biological Sciences, Faculty of Basic and Applied Sciences, Osun State University, Osogbo, Nigeria. |
The objective of this study was to investigate the effect of different planting density and light intensities on the growth and yield of soybean. This was with the view to provide appropriate information on planting densities and actual light intensities required for the growth and yield of soybean. A screenhouse was constructed to minimize extraneous factors such as pests and rodents, supply of water other than the amount specifically applied. The intensity of light was also determined using a digital luxmeter LX 1000. The intensities of average light determined were 5764 (100%) and 3517 (61%). The four treatments of light regimes are L1 = 100% light, L2 = 61% light, L10 = 5 weeks in 100% light, thereafter in 61% light and L20 = 5 weeks in 61% light, thereafter in 100% light. The seeds of the soybean were sown at the rate of five seeds (P5), three seeds (P3) and one seed (P1). They were watered daily with 200 ml of tap water in the morning and 200 ml of tap water in the evening until they were fully established. The results obtained showed shoot height, number of leaves and leaf area of soybeans were more enhanced under 61% light or partial light intensity and when sown at the rate three seeds (P3). The yield components of soybean were more enhanced when placed in 5 weeks in 100% light, thereafter in 61% light and when sown at the rate three seeds (P3). This study concluded that better growth and yield were obtained with partial light (L2) with three planting density (P3).
Keywords
Soybean, Density, Light, Growth, Yield
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