Measures of energy inputs to agriculture should include the gross energy, as well as the other inputs embodied in the material/source until it is used on the field. The efficiency of the system should take into account all the inputs of the farmer until the products reach the first...

Five classical clustering methods: four hierarchical -single linkage, average-between linkage, average-within linkage, Wards - and one non-hierarchical - k-means - using five different distance measures: squared Euclidean, city block, Chebychev’s, Pearson correlation and Minkowski have been...

The present investigation is an attempt to compare the estimated, predicted, empirical and bootstrap Standard Errors (SE) for different combinations of population heritability, genetic and phenotypic correlations for different family sizes and structures under half-sib mating design. The data...