An enhanced level of drought tolerance in wheat (Triticum spp.) may be reached through combining agronomic and physiological traits associated with grain yield under conditions. We aimed to explore valuable diversity for the tolerance, existed core collection Iranian spring bread landraces. A number 206 accessions along check cultivar were assessed yield, drought-adaptive traits, estimated crit...

the rehabilitation of sandy desertified land in various dryland ecosystems by different management practices has a great potential to increase aggregate stability and improve soil quality. however, plants in general may have a different ability to sustain soil. the objective was to determine the effects of reclamation practices including haloxylon ammodendron and atriplex canescens plantation o...

The main constraint on rice cultivation in the Mediterranean area is limited irrigation and its large water consumption. In addition, very sensitive to drought conditions because of stress morpho-physiological traits yield reduction. application salicylic acid (SA) has been noticed be effective alleviating adverse effects rice. current investigation was conducted as a split-split arrangement un...

This paper presents the design and implementation of the Generic Message Passing framework (GMP). The design of the GMP is guided by two goals: programmer productivity and run-time performance—particularly for parallel systems having both shared and distributed memory (e.g., clusters of SMPs). To achieve these goals simultaneously, the GMP uses a generic programming paradigm, allowing it to int...

Parallel subtraction is an operation defined on pairs of positive operators. In terms of electrical networks, one may pose the following problem: Given an electrical network, represented by a specified positive operator, determine the set of positive operators which when connected in parallel with the specified operator yield another prescribed operator. The set of solutions of this electrical ...

We introduce a model for the dynamics of a patchy population in a stochastic environment and derive a criterion for its persistence. This criterion is based on the geometric mean (GM) through time of the spatial-arithmetic mean of growth rates. For the population to persist, the GM has to be >/=1. The GM increases with the number of patches (because the sampling error is reduced) and decreases ...

In this paper, we obtain two refinements of the ordering relations among Heinz means with different parameters via the Taylor series of some hyperbolic functions and by the way, we derive new generalizations of Heinz operator inequalities. Moreover, we establish a matrix version of Heinz inequality for the Hilbert-Schmidt norm. Finally, we introduce a weighted multivariate geometric mean and sh...

In this note, we present sharp inequalities relating hypergeometric analogues of the arithmetic-geometric mean discussed in [5] and the power mean. The main result generalizes the corresponding sharp inequality for the arithmetic-geometric mean established in [10].