Morphological Traits above the Flag Leaf Node as Indicators of Drought Susceptibility Index in Durum Wheat

作者: D. Villegas , L. F. García del Moral , Y. Rharrabti , V. Martos , C. Royo

DOI: 10.1111/J.1439-037X.2006.00246.X

关键词: Genetic variabilityPrincipal component analysisYield (wine)Selection (genetic algorithm)AgronomyBiologyDrought tolerancePoaceaePeduncle (anatomy)Anthesis

摘要: Selection criteria for drought tolerance would be helpful tools wheat breeding programmes. To assess the usefulness of some morphological traits above flag leaf node as indicators yield and susceptibility index (SI) Fischer Maurer, 10 durum genotypes were used in experiments conducted under two water regimes at latitudes Spain during 3 years. Morphological measured anthesis, yield, components quality evaluated ripening. Principal analysis showed associations between quality, most them caused by differences environments. Peduncle weight, spike weight length awn significantly related to SI within Spike peduncle more all together rainfed sites, while irrigated sites was better. The negatively associated with SI, positively SI. Genotype means across values. These could selection programmes obtain varieties good stability. genetic variability found suggests opportunity selection.

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