See more from this Session: General Soil Fertility and Plant
Nutrition: I Wednesday, November 3, 2010: 8:15 AM Long Beach
Convention Center, Room 202C, Second Floor Soil acidity is a
major yield limiting factors for bean production in the tropical
regions. Using soil acidity tolerant genotypes is an important
strategy in improving bean yields and reducing cost of
production. A greenhouse experiment was conducted with the
objective of evaluating 20 dry bean genotypes for their
tolerance to soil acidity constraints. Inceptisol soil was
amended with dolomitic lime (6 g dolomitic lime kg-1 soil) to
achieve low and without lime (zero lime kg-1 soil) to achieve
high acidity levels to evaluate bean genotypes. At both the
acidity levels genotypes differed significantly in shoot dry
weight and grain yield. Shoot dry weight and grain yield were
significantly decreased at the high acidity level compared to
low acidity level. Grain yield was more sensitive to soil
acidity compared to shoot dry weight. Based on grain yiel