1Department of Biology and Plant Ecology, VRBN LaboratoryFarhat Abbas Setif University, Algeria
2National Institute of Agronomic Research of Algeria (INRAA), Setif UnitAlgeria
3Department of Agronomy, VRBN LaboratoryFarhat Abbas Setif University, Algeria
4Technical Institute of Field Crops, Setif, Algeria
*Corresponding Author: B. Frih, Department of Biology and Plant Ecology, VRBN LaboratoryFarhat Abbas Setif University, Algeria, Email: benaliafrih@gmail.com
Online Published on 31 December, 2022.
We aim to determine the effects of RGB reflectance index and chlorophyll contents on yielding of 15 durum wheat genotypes growing under semi-arid conditions.
The genotypes tested were sown in a random block design with three replications. The following traits were measured from the head, number of days to heading, RGB reflectance index by numerical images analysis of flag leaves and using Mesurim Pro (version 2.8) software and Chlorophyll contents. Grain yield, thousand kernels weight, number of spikes per meter square and plant height were measured at maturity.
ANOVA showed that genotype effect significant for all traits. The local landrace Boutaleb witch was the best yielding genotype registered a low red reflectance index and an average green reflectance index, blue reflectance index and chlorophyll contents. The study of the correlations reveled that chlorophyll contents was significantly and negatively correlated with reflectance index at red and blue bands and very significantly and positively correlated with reflectance index at green band. PCA showed thatgrain yield was affected by number of spike per mete square, a negative relation was observed between chlorophyll contents and RGB reflectance index.
Chlorophyll, Grain yield, Reflectance, RGB, Semi-arid
