Rapid non-destuctive methods for leaf bulk density estimations of 16 droughted and irrigated barley (Hordeum vulgare) genotypes
Journal Title: International Journal of Farming and Allied Sciences - Year 2015, Vol 4, Issue 5
Abstract
16 Barley (Hordeum vulgare) genotypes, namely G30, G54, G65, G74, G77, G83, G94, G98, G116, G119, G126, G127, G142, G144, G154 and G169, were subjected to adequate irrigation during their growing season and to drought only during spike development stage, to create new equations through regression for rapid leaf bulk density estimation in field. The obtained equations were as below: Leaf bulk density (g.cm3) = -6.567+17.25 (base leaf width)–13.36(base leaf width)2+3.34(base leaf width)3, Leaf bulk density (g.cm3) = 0.7372-0.09036 (mid leaf width), Leaf bulk density (g.cm3)=1.2-0.05215(leaf L*W)+0.00147(leaf L*W)2-0.000013(leaf L*W)3, Leaf bulk density (g.cm3)=1.2-0.1043 (leaf L*0.5W)+0.005878(leaf L*0.5W)2-0.00013(leaf L*0.5W)3, Leaf bulk density (g.cm3) = 0.9709-0.0252 (leaf L)+0.000447 (leaf L)2, Leaf bulk density (g.cm3) = 0.5135+0.0049 (L/W). Triangle (L*0.5 mid W) was the most accurate method for estimating leaf bulk density of irrigated barley. While, rectangle (L*mid W) was the most precise method for droughted barley. Mid W, method was preferred for G54, G77, G83, G116 and G144. L: W method was the most accurate for G65, G74, G119, G127, and G142. Rectangle was the accurate for G94, G98, G154, and G169. Triangle method was the best forG126 and L method for G30. Each individual investigated irrigated and droughted genotype was mentioned its suitable estimation method.
Authors and Affiliations
Caser G. Abdel, Hartmout Stutzel
Keywords
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