In maize (Zea mays L., 2n = 2x = 20), map-based cloning and genome organization studies are often complicated because of the complexity of the genome. Maize chromosome addition lines of hexaploid cultivated oat (Avena sativa L., 2n = 6x = 42), where maize chromosomes can be individually manipulated, represent unique materials for maize genome analysis. Maize chromosome addition lines are partic...

a breeding program was started in safiabad agricultural research center in 1999, to produce an improved maize hybrid with a relative heat stress tolerance. consequently at 2005 a few s6 lines with having moderately tolerance to high temperature were obtained. these combinates were then evaluated for three consecutive years in three sub-tropical regions of the country includes khzestan, ilam and...

Water, salinity and nitrogen are the major factors affecting maize production in arid and semi-arid areas. The objectives of this study were to investigate the effects of different water, salinity and nitrogen levels on yield-water relationships, water use, water productivity (WP), water use efficiency (WUE) and water uptake reduction function by maize hybrid SC-704 in a semi-arid area and ...

The identification of parental inbred lines to develop superior hybrids is a rather costly and time-consuming step in maize breeding. In some cases, pedigree information has been used to select diverse parental lines. In the case of Iranian maize inbred lines, this information is not fully available. In this study we investigated the genetic distance (GD) based on Simple sequence Repeats (SSR) ...

Symptom development of a plant viral disease is a result of molecular interactions between the virus and its host plant; thus, the elucidation of specific interactions is a prerequisite to reveal the mechanism of viral pathogenesis. Here, we show that the chloroplast precursor of ferredoxin-5 (Fd V) from maize (Zea mays) interacts with the multifunctional HC-Pro protein of sugar cane mosaic vir...

Faruq Hasan M. 2008. Economic Efficiency and Constraints of Maize Production in the Northern Region of Bangladesh. j. innov.dev.strategy 1(1): 18-32 The study was conducted at the Sadar upazila of Dinajpur and Panchagarh to estimate the costs, returns and economic efficiency of maize production compared to Boro rice. The growth rate of maize in the country and constraints to maize production at...

in this study, a complex crop model was developed that integrates the various components of swap and csm-ceres-maize (dssat v4.0) model with the purpose of developing a more efficient model and according to the internal requirements. in the hybrid model, ceres-maize supplies swap model with daily leaf area index and root depth and on the other hand swap model supplies ceres-maize with daily wea...

In this paper, the authors evaluate the impact of access to ICT-based market information on prices received by farmers and the intensity of adoption of improved hybrid and composite maize varieties. Propensity score matching is applied to cross-sectional survey data from farmers whose major cash crop is maize. Results indicate that adoption of improved maize has a positive and significant effec...

HAT heterosis is a genetic phenomenon cannot be doubted. And yet, in spite of our awareness of this phenomenon for many years, genetic mechanisms responsible for heterosis have not been demonstrated operationally ( SARKISSIAN 1967). That is, it has not been possible to define heterosis-superior growth of a hybrid-in terms of actual operations o r experimental treatments that may have been appli...