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New Hot Paper Comments

By Martin Uzik

ESI Special Topics, January 2008
Citing URL - http://www.esi-topics.com/nhp/2008/january-08-MartinUzik.html

Martin Uzik answers a few questions about this month's new hot paper in the field of Agricultural Sciences.


From •>>January 2008

Field: Agricultural Sciences
Article Title: Translocation and accumulation of dry matter in winter wheat genotypes
Authors: Uzik, M;Zofajova, A
Journal: CEREAL RES COMMUN
Volume: 34
Issue: 2-3
Page: 1013-1020
Year: 2006
* Res Inst Plant Prod, Bratislavska 122, Piestany 92101, Slovakia.
* Res Inst Plant Prod, Piestany 92101, Slovakia.

ST:  Why do you think your paper is highly cited?

Translocation of assimilates is a subject of increasing interest. The changed distribution of assimilates between vegetative and generative organs in favor of generative ones (grain) was the main reason of harvest index increasing and higher grain yield in the modern cultivars compared to the classical ones.


“Present knowledge about conditionality of translocation process depending on environment and genotype conditions are critically synthesized in the paper.”

Translocation of assimilates relates to the source and sink capacity rate of grain and the rate of source-sink depends on environment and genotype. Assimilates accumulated till anthesis can stabilize yields by translocation process during grain-filling period. Translocation process in plant species can be the source of wheat genotypes’ adaptation and tolerance to the aridization of the environment due to climatic changes.

ST:  Does it describe a new discovery, methodology, or synthesis of knowledge?

Present knowledge about conditionality of translocation process depending on environment and genotype conditions are critically synthesized in this paper. Lines from generations F4 and F5 were used as experimental material, allowing an estimation of how genotypes share in the translocation process. Lines were evaluated during two successive years, with diametrically different distributions of precipitation and temperature, enabling us to specify the definition of environment for translocation of assimilates.

ST:  Would you summarize the significance of your paper in layman’s terms?

A method is presented, defining how to estimate the effects of environmental conditions up until and after anthesis on the portion of translocated biomass, which is produced until anthesis and translocated after anthesis from vegetative organs to the grain. A portion of the translocated biomass is limited by two parameters—the rate of accumulated biomass before heading from produced biomass till maturity and also by harvest index.

ST:  How did you become involved in this research, and were there any particular problems encountered along the way?

I became involved in this research because I was quite interested in what factors limit and stabilize wheat and barley grain yield, sources or sink. Results achieved in this field are exploitable in the chosen selection.

ST:  Where do you see your research leading in the future?

Into more research, pertaining to how the root system participates on translocation and particularly on what is the portion of assimilate translocation on the nitrogen translocation—the process closely associated with grain quality.

ST:  Are there any social or political implications for your research?

There are indirect implications. Crop productivity, yield stability, and food sufficiency directly contribute to social stability.End

Dr. Martin Uzik
Research Institute of Plant Production
Piestany, Slovakia
  

ESI Special Topics, January 2008
Citing URL - http://www.esi-topics.com/nhp/2008/january-08-MartinUzik.html

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