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: PBR-120-381

[Submit comment/correction]

Reference	PBR-120-381
Title	Environmental and genetic determination of protein content and grain yield in durum wheat under Mediterranean conditions
Journal	Plant Breeding
Year	2001
Volume	120
Pages	381-388
Author	Rharrabti Y [ Show all 6 ]
Abstract	Summary: The unpredictability of the Mediterranean climate causes fluctuations in wheat yield and quality, but offers the opportunity for obtaining high-quality durum wheat in terms of grain protein content. Twenty-five durum wheat genotypes were grown under irrigated and rainfed conditions at each of two latitudes in Spain during 1998 and 1999. Differences between latitudes in grain protein content and chlorophyll content in the flag leaf were attributable to nitrogen fertilization management. Cycle length until anthesis was less affected by the environment than grain-filling duration, and was longer under irrigated conditions than in the rainfed sites. A negative asymptotic curve was the best equation to fit the relationship between yield and protein content, suggesting that yield improvements in fertile environments may be attained with negligible reductions in protein content. 'Jabato', 'Waha', 'Lagost-3', 'Massara-1' and 'Vitron' showed medium to high yield, yield stability and high protein content. Chlorophyll content in the flag leaf, measured at anthesis with the soil-plant analysis development (SPAD) portable field unit, may be useful for the fast and cheap detection of durum wheat genotypes with high grain protein content in drought-stressed Mediterranean environments
Keyword	[ Hide all but 1 of 58 ] accumulation analysis anthesis chlorophyll chlorophyll content climate cultivar cycle detection development duration durum durum wheat environment environmental fertile fertilization field flag leaf genetic genotype grain grain filling grain protein grain protein content grain yield growth improvement irrigated conditions latitude leaf length management media mediterranean climate mediterranean conditions nitrogen nitrogen-fertilization protein protein content quality red winter-wheat reduction site spain spring wheat stability stress temperature triticum aestivum triticum durum unit wheat wheat genotypes wheat yield yield yield improvement yield stability

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