The idea of “forcing” has long been used in many research fields, such as colorings, orientations, geodetics and dominating sets in graph theory, as well as Latin squares, block designs and Steiner systems in combinatorics (see [1] and the references therein). Recently, the forcing on perfect matchings has been attracting more researchers attention. A forcing set of M is a subset of M contained...

general and specific combining ability of five fertile male (lines) and two male sterile ‎‎(tester) of rice were evaluated for 10 important morphological traits as well as yield and yield ‎components in a randomized complete block design with three replications. results revealed ‎that general combining ability effects were highly significant (p

olive oil extraction methods and technology can affect the quality and quantity of the extracted oil. in this study, qualitative and quantitative parameters were investigated for oil extracted using a hammer crusher at 720 and 1450 rpm at 30°, 40°, 60° c mixing temperatures. the data were analyzed using a complete randomized block factorial design using spss software with three replications. th...

Multilevel designs are used by researchers in many areas (Raudenbush and Bryk (2002) and Milliken and Johnson (1992)) and those researchers have used different terminologies to describe the designs. Multilevel designs are designs that involve more than one size of experimental unit, thus the name, multilevel. Split-plot designs are multilevel designs and have been used by physical and biologica...

ABSTRACT- Crop residue is applied to amend soil properties and increase crop yield. In this study, the effects of rapeseed residues and different rates of nitrogen on grain yield and yield components of sunflower and weed dry matter were investigated. The experiment was conducted at the Experimental Farm of College of Agriculture, Shiraz University, located at Badjgah, Shiraz, Iran in 2007-2008...

in order to study the effects of nitrogen (n), boron (b) and sulfur (s) on yield, yield components, oil and protein content of safflower (carthamus tinctorius l.) an experiment was conducted in research station, college of agriculture, shahid bahonar university of kerman, using a local variety’’ isfahan’’. a randomized complete block design with three replications was used. treatments were all ...

in order to determine the effects of applied phosphate bio-fertilizer on yield and morphological traits of wheat, a research was conducted in sari agricultural sciences and natural resources university during 2008-2010. a factorial experiment was performed based on randomized complete block design with four replications. the first factor consists of two levels of phosphate bio-fertilizer (0 and...

to evaluate the effect of environment on the general and specific combining ability of virginia tobacco genotypes, five varieties were intercrossed in combination in 2007 in a half – diallel design. in 2008, the ten f1 population and the five parental lines were sown in two different conditions (drought stress and non-stress) using a complete randomized block design with three replications and ...

This study was conducted to determine the effects of different intercropping design maize/soybean compared with sole cropping, in combination Vitormone (biofertilizer; Azotobacter) during 2012 and 2013. There were four designs used experiment: i) maize soybean, ii) 1 + soybean alternate rows, iii) 2 soybeans rows iv) intra under control application. The experiment laid out a randomized complete...

Sweet grain sorghum is an under-exploited crop mainly grown around dwelling houses. Its production faces harsh environmental conditions. This study aims to assess sowing date effect on morpho-agronomical traits of sweet sorghum. Thus, 30 genotypes were assessed under 2 planting dates (June 26 and July 20) 24 days apart in a Randomized Complete Block Designs with 3 replications using 10 traits. ...