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...

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...

Agronomic data from a sample hectare of cotton-growing area of our farm were examined for energy inputs, outputs and balance for comparison with monetary values. Mechanized fanning consumed about 45% of the energy inputs and accounted for about 20% of the expenses. The major cost (53%) was for...

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...

Agriculture accounts for most of the energy consumed in India. Non-commercial sources may be insufficient for food production. Substitutes or alternatives have to be developed for some agricultural products. It is feasible to produce cheaper acceptable substitutes for sugar (from crop residues),...

Dung supplies are inadequate to provide enough farmyard manure (FYM) and cheap dung-cakes. Use of FYM necessitates supply of other fuels for cooking. Fertilizers consume only 5% of the thermal energy embodied in FYM. Replacement of the currently used amount of FYM by fertilizers will save fuels...

Taking into account the energy costs of weedicide production, formulation, transportation and the fixed energy inputs through equipment on farms in Haryana and the man-days needed for weed control, the energy inputs in weed control by manual or chemical methods have been evaluated. Use of 2,4-D...