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Table 1 Shannon-Weaver index (H′) estimated on the 304 Tunisian durum wheat accessions for five regions and for three climate stages

From: Morphological characterization and genetic diversity analysis of Tunisian durum wheat (Triticum turgidum var. durum) accessions

   Phenotypic traits
   SS SL AL SC NS GlC GN GSp GSz GC AC SD Mean H′
Collection   0.86 0.98 0.79 0.53 0.83 0.84 0.69 0.87 0.94 0.86 0.64 0.74 0.80
Regions Sousse 0 0 0 0 0 0 0 0 0 0 0 0 0.00
Mahdia 0.52 0.99 0.56 0.00 0.63 0.48 0.62 0.63 0.48 0.74 0.73 0.65 0.58
Kairouan 0.85 0.98 0.57 0.48 0.96 0.97 0.62 0.98 0.88 0.75 0.12 0.70 0.74
Gabes 0.44 0.49 0.50 0.25 0.63 0.50 0.57 0.56 0.43 0.73 0.61 0.65 0.53
Medenine 0.60 0.71 0.86 0.53 0.59 0.53 0.78 0.86 0.63 0.62 0.71 0.47 0.66
Mean 0.54 0.69 0.55 0.30 0.61 0.55 0.55 0.65 0.56 0.62 0.47 0.53 0.55
Climate stages LSA 0.48 0.00 0.92 0.63 0.61 0.41 0.62 0.61 0.62 0.74 0.67 0.79 0.59
MA 0.68 0.38 0.80 0.87 0.62 0.56 0.70 0.88 0.54 0.89 0.71 0.65 0.69
HA 0.85 0.48 0.97 0.58 0.96 0.96 0.63 0.98 0.88 0.75 0.12 0.68 0.74
Mean 0.67 0.29 0.90 0.69 0.73 0.64 0.65 0.82 0.68 0.79 0.50 0.71 0.67
  1. SS spike shape, SL spike length, AL awn length, SC spike color, NS number of spikelets/spike, GlC glume color, GN number of grains/spikelet, GSp grain shape, GSz grain size, GC grain color, AC awn color, SD spike density, LSA Low Semi-Arid (Sousse and Mahdia), MA Mid-Arid (Gabes and Medenine), HA Higher-Arid (Kairouan)