this research was investigated to evaluate growth indices and competitive ability of two wheat ) triticum aestivum l. (cultivars in interference with two species of narrow and broad leaf weeds as two separated experiments based on a randomized complete block design with three replications at agricultural faculty of bu-ali sina university, during 2008-2009. in both experiments, alvand and sayson...

satureja rechingeri, belonging to the family lamiaceae, has been recently used in the pharmaceutical industry due to its high level of carvacrol in the essential oil. the domestication and breeding of suitable s. rechingeri variety has been started since few years ago in iran. the initial screening of natural populations, grown in the same environment, was performed and 58 talent clones were se...

This study explores the potential of wavelet decomposition of leaf reflectance spectra for quantifying foliar biochemicals and water. A leaf-scale radiative transfer model was used to generate a very large spectral data set with which to develop and rigorously test the technique. The size of the data set enabled a thorough statistical analysis of the performance a range of alternative methods f...

Ranunculus trichophyllus is an amphibious plant that produces thin and cylindrical leaves if grown under water but thick and broad leaves if grown on land. We found that such heterophylly is widely controlled by two plant hormones, abscisic acid (ABA) and ethylene, which control terrestrial and aquatic leaf development respectively. Aquatic leaves produced higher levels of ethylene but lower le...

The narrow sheath (ns) phenotype of maize is a duplicate factor trait conferred by mutations at the unlinked loci ns1 and ns2. Recessive mutations at each locus together confer the phenotypic deletion of a lateral compartment in maize leaves and leaf homologs. Previous analyses revealed that the mediolateral axis of maize leaves is comprised of at least two distinct compartments, and suggest a ...

Watermelon [Citrullus lanatus (Thunb.) Matsum. & Nakai] production in the United States has, in the past few years, incurred significant losses to races 1W and 2WU.S. powdery mildew (Podosphaera xanthii) infection. We report the mode of inheritance, gene action, and heritability of race 2WU.S. resistance in two populations derived from a cross involving the resistant genotype pI 189225 and the ...

The availability of a considerable amount of Synthetic Aperture Radar data, obtained from airborne and spacecraft systems, has stimulated significant research for the purposes of interpreting backscattering data and investigating the potential of radar remote sensing for various applications. Vegetation has been one of the most studied subjects; however, much of the work has been carried out in...

S-[(4-chlorophenyl) methyl]diethylcarbamothioate General information This document reviews the environmental fate and environmental effects of the thiocarbamate herbicide, thiobencarb {S–[(4-chlorophenyl) methyl] diethylcarbamothioate (C 12 H 16 ClNOS)}. Thiobencarb, also referred to as benthiocarb was developed by Kumiai Chem. Ind. Co. Ltd and introduced in the market in 1970 (Ishikawa, 1981)....