Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Effect of Flag Leaf Reflectance Index (RGB) on Grain Filling in Some Durum Wheat [Triticum turgidum L. ssp. durum (Desf.) Husn.] Cultivars Sowed under Semi-arid Condition

Version 1 : Received: 19 July 2022 / Approved: 20 July 2022 / Online: 20 July 2022 (10:23:42 CEST)

How to cite: Oulmi, A.; Guendouz, A.; Frih, B.; Benkadja, S. Effect of Flag Leaf Reflectance Index (RGB) on Grain Filling in Some Durum Wheat [Triticum turgidum L. ssp. durum (Desf.) Husn.] Cultivars Sowed under Semi-arid Condition. Preprints 2022, 2022070301 (doi: 10.20944/preprints202207.0301.v1). Oulmi, A.; Guendouz, A.; Frih, B.; Benkadja, S. Effect of Flag Leaf Reflectance Index (RGB) on Grain Filling in Some Durum Wheat [Triticum turgidum L. ssp. durum (Desf.) Husn.] Cultivars Sowed under Semi-arid Condition. Preprints 2022, 2022070301 (doi: 10.20944/preprints202207.0301.v1).

Abstract

: Our study aim to test the influence of RGB reflectance and chlorophyll content on grain fill and grain yield of 15 durum wheat cultivars sown under semi-arid conditions. the evolution of chlorophyll content during three stages showed a stability during the heading stage, the chlorophyll content begins at this degradation during grain filling. Boutaleb genotype which was the best yielding genotype was characterized by low values ​​of RGB reflectance and high values ​​of majority of grain filling parameters and thousand kernels weight. Grain filling follows a sigmoid curve. Chlorophyll content was positively correlated with reflectance under the green band and negatively with both Red and Blue bands. A positive correlation was recorded between thousand kernel weight and grain yield, maximum grain dry weight and grain filling duration. The duration of the grain filling was positively influenced by the maximum dry weight of the grain and negatively by the grain filling ratio, the grain filling ratio was positively affected by reflectance at blue band. The principal component analysis separated the cultivars considered into 3 principal components, the absorption/reflectance component, the profitability component and the component of grain filling rate to which the local landrace Boutaleb belongs in terms of grain yield.

Keywords

Grain yield; reflectance; chlorophyll; semi-arid; grain filling; Algeria

Subject

BIOLOGY, Agricultural Sciences & Agronomy

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our diversity statement.

Leave a public comment
Send a private comment to the author(s)
Views 0
Downloads 0
Comments 0
Metrics 0


×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.

We use cookies on our website to ensure you get the best experience.
Read more about our cookies here.