Response of Acid-Adaptive Soybean Genotypes Grown in Associated Entisols-Inceptisols and Vertisols Soil Types

Abstract

Response of plant grown on different soil types will be different depending on the nature of the soil. Acid-adaptive soybean genotypes that normally grown in Ultisols, may have higher yield potential when grown in optimal soil types such as associated Entisols-Inceptisols and Vertisols. A total of 10 soybean (Glycine max (L.) Merrill) genotypes, consisted of nine acid-adaptive soybean genotypes and one released variety (Tanggamus/G10), were grown on both locations. A randomized complete blocks design with three replications was applied in this study. Results showed that interaction between the genotypes and the environments was found on five characters of seven observed characters. The check variety Tanggamus that released as acid-adaptive soybean variety showed the highest grain yield in both soil types indicating that Tanggamus is potential to be grown in Vertisols and associated Entisols-Inceptisols soil types. Shrink-swell in Vertisols might lead detrimental effect on soybean roots and caused growth and developing restriction. Consequently, grain yield in Vertisols was lower than in associated Entisols-Inceptisols. However, there were three genotypes with higher grain yield in Vertisols than in associated Entisols-Inceptisols, i.e., G2 (Tgm/Anj-833), G5 (Tgm/Anj-846) and G6 (Tgm/Anj-847).

Genetic Variability, Heritability, and Correlation of Some Agronomical Characters of Soybean Varieties

“…Plant height, number of branches, and reproductive nodes ranged from 49.87 to 98.09 cm, 3.07 to 4.53 branches, and 14.43 to 30.53 nodes per plant, respectively (Table 2). This study reveals a higher average of plant height but a lesser average of branches than Kuswantoro (2015).…”

“…The same genotypes express longer growth duration in sub-tropical than in tropical climate (Kuswantoro et al, 2017c). This maturity age range is broader than the promising lines derived from crossings grown in different soil types (Kuswantoro, 2015), allowing finding a new gene source for developing variety.…”

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

“…Grain size can decrease (Kuswantoro . et al 2014) or increase (Kuswantoro 2015) grain yield through modification of environmental factors such as soil acidity. Therefore, grain size is more affected by environmental factors rather than by genetic constitution (Liu 2010).…”