African Journal of
Biotechnology

  • Abbreviation: Afr. J. Biotechnol.
  • Language: English
  • ISSN: 1684-5315
  • DOI: 10.5897/AJB
  • Start Year: 2002
  • Published Articles: 12332

Full Length Research Paper

Grain yield and its components study and their association with normalized difference vegetation index (NDVI) under terminal water deficit and well-irrigated conditions in wheat (Triticum durum Desf. and Triticum aestivum L.)

Mekliche A.
  • Mekliche A.
  • laboratoire de recherche (Production Vegetale) , Departement de Phytotechnie Ecole Nationale Superieure Agronomique (ex INA), El-Harrach, Alger, Algerie.
  • Google Scholar
Hanifi-Mekliche L.
  • Hanifi-Mekliche L.
  • laboratoire de recherche (Production Vegetale) , Departement de Phytotechnie Ecole Nationale Superieure Agronomique (ex INA), El-Harrach, Alger, Algerie.
  • Google Scholar
Aidaoui A
  • Aidaoui A
  • laboratoire de recherche (Production Vegetale) , Departement de Phytotechnie Ecole Nationale Superieure Agronomique (ex INA), El-Harrach, Alger, Algerie.
  • Google Scholar
Monneveux Ph.
  • Monneveux Ph.
  • SUPAGRO Montpellier (CIP, LA MOLINA 1895, LA MOLINA, LIMA, PERU).
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Hwazen Amer Shneewer
  • Hwazen Amer Shneewer
  • Ministry of Health, Iraq.
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  •  Received: 01 March 2015
  •  Accepted: 18 May 2015
  •  Published: 30 July 2015

Abstract

Six genotype of Triticum aestivum L. in 1991 and one genotype of Triticum durum Desf. and three of T. aestivum L. in 1992 were studied under different water regimes: full irrigation (R1), mild water stress (R3) and severe water stress (R2) at Magneraud (France). Traits evaluated were grain yield and its components, stress susceptibility index (SSI) and normalized difference vegetation index (NDVI). The analysis of variance revealed significant differences between regimes and among the cultivars for all traits except between regimes for thousand grains weight in 1991. The regime × variety interaction was significant for grain yield, thousand grains weight and NDVI in 1992 and for grain yield in 1991. For all traits, durum wheat (T. durum Desf.) has higher reduction in the two water stress than the common wheat (T. aestivum L.). Correlations studies revealed that grain yield, grains number/m², thousand grains weight and NDVI were associated with each other except for correlations between thousand grains weight on one hand and grain yield (1992) and grains number/m² (1991) on the other hand. 51.55, 27.88, 4.12% (1991) and 75, 43 and 20.2% (1992) of grain yield, grains/m² and thousand grains weight variability, respectively were explained by means NDVI variability. The grain yield and grains number/m² could be predicted using a single regression with NDVI.
 
Key words: Grain yield, grain yield components, NDVI, durum wheat and bread wheat.
 

Abbreviation

SSI, Stress susceptibility index; NDVI, normalized difference vegetation index; TOL, tolerance index; MP, mean productivity; STI, stress tolerance index; SR, simple ration