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Articles by Voichita HAS
Total Records ( 5 ) for Voichita HAS
  Voichita HAS , Alin GULEA , Ioan HAS and Ana COPANDEAN
  The objective of this research was to determine whether phenotypic and genetic diversity could be identified for maize grain quality traits (percentage of starch, protein, oil, fiber and ash) and agronomic traits. 59 maize synthetic populations which differed in earliness and for geographic origins were evaluated in the field at the Agricultural Research Station Turda - Romania, for their per se value. Each synthetic population was tested only one year and was characterized for their ear characteristics and grain quality attributes. The grain oil and ash content showed high variability among genotypes. The experiment was conducted over 2 years (2006-2007) and 2 locations (Turda and Targu-Mures). Analysis of variance showed significant differences among the genotypes for all traits studied. General combining ability (GCA) effects were more important for grain content than specific combining ability (SCA). The occurrence of low interactions between synthetic populations and testers for all characters suggested the occurrence of high statistical additive effects expressed whatever the system of population evaluation. These results support breeding effort towards the genetic improvement of grain quality traits in “Turda” maize germplasm.
  Voichita HAS , Rodica POP , Ioan HAS and Ana COPANDEAN
  Characterization of genetic variability among maize inbred lines can facilitate organization of germplasm and improve efficiency of breeding programs. A set of 83 phenotypically diverse inbred maize lines maintained in Agricultural Research and Development Station (ARDS), Turda, Romania was characterized by pedigree, phenotypically using 14 characters of the plant and ear and genetic with RFLP markers. The objective of this study was to characterize the genetic variability and to define the potential heterotic groups based on clusters formed with marker data. Inbred lines were grouped by their phenotypic differences index in twenty classes. Both the phenotypic and molecular markers analysis indicated high genetic variability and also allowed the separation of the germplasm into group of genetic similarity. The result suggested that the inbred lines analyzed could be useful in maize genetic breeding program.
  Camelia RACZ , I. HAS , Voichita HAS , Teodora SCHIOP and I. COSTE
  The maize is one of the most important crops in the world due to its high productivity and multiplexing usage in human nutrition, animal breeding and industry. The isonucleus inbred lines study has been initiated from the demand of clarifying if the cytoplasm source has a positive or negative influence on the corn cars, plants, grain traits and some maize cultural features. The research has been conducted in the experimental field provided by the Maize Breeding laboratory from ARDS Turda, ARDB Targu-Mures, ARDS Secuieni, ARDS Livada, ARDS Suceava in 2009. The cell nucleus transfer activity for 12 elite inbred lines on various cytoplasm types has begun in 1992 starting from the assumption that among cytoplasm of different origin could exist differences in the genetic value. The ultimate objective of breeding works is to obtain a higher grain yield and the yield quality to be at the desired level of farmers. For this reason it was studied the effect of different types of cytoplasm on grain yield, kernel dry matter at harvest and unbroken plants percentage at harvest, all these traits are important to achieve secure yield, mechanized harvestable. The kernel dry matter at harvest is one of the indicators of vegetation period, the most used in choice of early single crosses.
  Cornelia STAN , Ioan HAS , Voichita HAS , Ana COPANDEAN and Nicolae TRITEAN
  Root system development in maize seedlings has a influence on the further development of the plant; also length of mesocotyl and depth of coleoptile influence which can sow corn, play an important role in the uniformity of culture and plant growth and development. The area in witch has been created corn genotype, soil type and climate, but also some elements of technology have influenced the development of root system, the length of mesocotyl and coleoptile of the young plantlet. The paper presents variability in root system development of 40 inbred lines of corn , coleoptile and mesocotyl development in the same set of inbred lines and correlations between these characters.
  Cornelia STAN , Ioan HAS , Voichita HAS , Nicolae TRITEAN and Ana COPANDEAN
  One of the most important and difficult steps in the production of seed corn is drying and conditioning it, especially when seed production is done in ecological areas with limited temperature.
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