Journal ID : AMA-21-12-2022-11910
[This article belongs to Volume - 53, Issue - 12]
Total View : 464

Title : Mathematical model to estimate grain yield loss in durum wheat (Triticum durum Desf.) genotypes growing under semi-arid conditions

Abstract :

This experimental study was carried at the experimental station for field crops ITGC in Setif -Algeria- during the cropping season 2020-2021. The objectives of this study are to evaluate the parameters of the technological quality of three genotypes of durum wheat (Triticum durum Desf.) sown in semi-arid conditions and to estimate the efficiency of using the mathematical model to estimate the loss of grain yield based on the grain moisture in the field. The samples were taken from the physiological maturity of the grains, where the harvest was delayed by 13 days; The analysis of variance revealed that the effects of genotype are significant for all technological parameters. The genotypes tested showed acceptable protein levels (13.70 - 15.40 %). Addition-ally, all genotypes had high test weight (79.47 - 81.97 kg/hl) and a low rate of grain non vitreous (1 - 10.50 %). 13 days after physiological maturity, grain moisture decreased to less than 9.5% for all genotypes tested. Correlations test indicated that there are significant and positive correlations between grain moisture in field and grain yield, this indicates that the final yield decreases as the grain moisture decreases, and this is confirmed by the model, that is, after the physiological maturity of the grains, 1% loss of grain moisture, there is a loss of about 2.90 q/h of grain yield.

Full article