Query (optional)   in Class  All Allele Author Colleague Collection Assembly Gene Gene Class Gene Product Germplasm Image Journal Keyword Library Locus Map Map Data Marker Pathology Polymorphism Probe Protein QTL Rearrangement Reference Sequence Species Trait Trait Study Two Point Data  

---

GrainGenes Reference Report: PEU-04-371

[Submit comment/correction]

Reference	PEU-04-371
Title	Role of varieties resistant to abiotic stress factors in reliable wheat production in Hungary
Contained in	(2004) Genetic variation for plant breeding. Proceedings of the 17th EUCARPIA General Congress, Tulln, Austria, 8-11 September 2004.
Year	2004
Pages	371-374
Author	Veisz O [ Show all 8 ]
Abstract	The effects and interactions of extreme temperatures and water supplies on cereal species with different genetic backgrounds were studied in an artificial environment. It was concluded from the phytotron experiments that differences in the soil moisture content during freezing had little influence on the survival percentage of cultivars with excellent frost resistance, while for cultivars with moderate or poor frost resistance differences of as much as 50% were observed between the survival rates of plants tested at different soil moisture contents. The optimum temperature for initial development and the response to extreme values were determined for each variety in an experiment set up in the gradient chamber. Although each of the 12 cultivars exhibited different responses on the basis of phenological data, groups exhibiting characteristic development dynamics could be distinguished when all the traits were considered together. Changes in direct proportion to the environmental factors were characteristic of the phenological traits during the early stages of development, with the exception of changes in the biomass, which exhibited a logarithmic pattern. A reduction in the soil moisture content led to a significant decrease in biomass for all the genotypes tested. The extent of this biomass reduction as a response to unfavourable water supplies differed from one genotype to the other. There were also differences in the shoot-root growth dynamics. The shoots responded sensitively to unsatisfactory water supplies, while the root mass did not decrease proportionately with the drop in the water supply level
Keyword	agricultural research [ Show all 21 ]

GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture.