collected data in animal breeding center of iran from 1983 to 2003 was used to estimate the genetic parameters of milk yield in iranian holstein cattle. genetic parameters were estimated, using single and three trait animal models. records of three lactations were divided into thre esub groups according to average milk yield, climitical regions and herd sizes. all variance components in the thr...

The Minimax Sensor Location Problem (SELP) is a nonlinear, nonconvex programming problem which aims to locate sensors to monitor a planar region. The objective is to determine the locations that will minimize the maximum probability of “missing” an event in the region. Two evolutionary algorithms, differential evolution (DE) and the co-variance matrix adaptation evolutionary strategy (CMA-ES), ...

Consider a linear model Y = Xβ + z, z ∼ N(0, In), where the rows of X are iid samples from N(0,Σ), with Σ being a p by p matrix. It is believed that only a small fraction of the coordinates of β is nonzero, and we are interested in identifying such coordinates. We adopt an asymptotic framework where both p are n are large. In certain ranges, we find that the above problem reduces to a normal me...

to compare the yield and yield components of 10 promising dryland barley genotypes with a conventional cultivar (reihan03), a field experiment was conducted based on a randomized complete block design in miyaneh region in the 2010-2011 growing season, and their agronomic and morphological traits were recorded. genotypes were significantly different in terms of all the studied traits, and genoty...

a consortium of biofertilizers (azotobacter chroococcum and bacillus subtilis) was applied in conventional as well as organic matrix entrapped granular forms as sole nutrient source in two different doses for cultivation of wheat (triticum aestivum l. cv. pbw-343). a double dose of conventional biofertilizers increased the growth of wheat plants as measured on 30, 60, 90, and 120 days after sow...

The spatial variation of crop yield was mainly caused by the complicated factors, such as soil and land factors. Based on sound theoretical reasoning, the paper performed an exploratory investigation of the relationship between the spatial distribution of yield measurement about 849 samplings on Thiessen polygon. Reasonable sample size or sampling density is an assurance of yield estimation sur...