The effects of lime CaOH2 on the performance of wheat cultivars in plinthic ferralsols (eldoret soils) of Kenya
1988
Nyachiro, J.M. (NPBS, Njoro (Kenya)) | Briggs, K.G. (University of Alberta, Edmonton (Canada). Plant Science Dept.)
Seven wheat cultivars (Triticum aestivum L.) were used as indicators of lime response in a greenhouse experiment with a Kenyan Plinthic Ferralsol (Eldoret) which was limed from an initial pH of 5.5 to 6.5 using CaOH2 (calcium hydroxide). Two lime treatments were used: no lime added (control), and the equivalent of 3250 kg/ha of lime added. The analysis of variance (ANOVA) revealed that treatment x cultivar interaction was significant (p less than 0.05) for grain yield, harvest index percentage, and number of seeds per plot. It was demonstrated that the cultivars could be separated into distinct groups based on their relative performance in limed and unlimed soil, and that the degree of response to liming was cultivar dependent. Quantitative relationships between the characters measured, estimated by correlation coefficients, were not significantly affected by the level of lime
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