Morphological traits associated with lodging resistance of spring wheat (Triticum aestivum L.).

摘要: Throughout the world, lodging in cereals causes great losses yield each year. A two year field study was conducted to determine relationship of morphological traits resistance spring wheat (Triticum aestivum L.) breeding lines and find easily measurable related resistance. set 15 lines, representing a wide range combinations plant height resistance, evaluated. During first year, 29 were measured at growth stages correlated with score. Higher correlations found for anthesis (DC 65) than maturity 92); most fresh weight better did corresponding dry matter parameters. During second six height, stem length, diameter, ear weight, per cm score. From pooled data four experiments, significant between score single diameter cm. Thicker stems heavier (mg cm) indicative Stem cm−1 explained 48.5 % 49.7 %, respectively, phenotypic variation Multiple linear regression equations indicated that 77.2 % based on ear.