Potential Yield of Acid-Adaptive Soybean Promising Lines in Ultisols of Tanah Laut Regency, South Kalimantan Province, Indonesia

Abstract

Soybean is an important food commodity after rice and corn in Indonesia. Until now soybean demand cannot be fulfilled by domestic production, although the chances of fulfillment can be attempted. One of the attempts to increase domestic production is soybean planting in acid dry land that is widely available in Indonesia. The research aimed to obtain soybean lines that are adaptive in acid dry land. A total of 10 soybean promising lines and two check varieties (Wilis and Tanggamus) were grown in acid dry land in Tanah Laut Regency, South Kalimantan Province, Indonesia. Experimental design used was randomized complete block design with four replications. The data were analyzed using analysis of variance and followed by Least Significant Different test. The results showed that the promising lines of SC5P2P3.5.4.1-5 and SC5P2P3.23.4.1-5 achieved production of 1.51 t/ha and 1.48 t/ha, respectively. These yields were higher than Wilis and Tanggamus varieties that reached 1.41 t/ha and 1.13 t/ha, respectively. These two promising lines had the potency to be developed in Tanah Laut Regency, South Kalimantan or other areas with similar soil characteristics.

Performance of agronomical and seed biochemical traits of soybean genotypes in relation to their tolerance and preference by Nezara viridula

“…Usually, in plants under normal conditions without pest infestation, the number of unfilled pods was very low and could be ignored. Similar results were reported in studies related to the effect of environment stresses, such as waterlogging and acidic dryland, which produced maximum of 3 unfilled pods with the mean value of 1.47 pods (Kuswantoro 2015) and 6 pods with the mean of 3 pods (Kuswantoro 2016), respectively. The number of total pods illustrated the maximum potential for the number of filled pods.…”

Nutrient Profile and In Vitro Digestibility of Thirty Indonesian Soybean Genotypes Grown at Two Different Soil pH for Selection as Ruminant Feed

“…Marginal land in Indonesia consists of acid, saline, dry, and peat areas that have physical and chemical properties unfavorable for plant growth (Puspitasari et al, 2021). Opportunities for soybean development in areas of acid soil are extensive both because of soybean's ability to grow in acid conditions and because of the large area of acid land available (Kuswantoro, 2016). In Indonesia, wet conditions and intensive precipitation cause alkaline washing, leading to approximately 70% of the country's land being acidic (Sumiahadi and Acar, 2019).…”