Abstract
Zinc (Zn) deficiency is a common micronutrient deficiency in arid and semi arid regions of the world. A solution culture study was conducted to categorize twelve wheat genotypes according to their Zn utilization efficiency. The wheat genotypes were grown in a half strength Johnson’s modified nutrient solution supplied with adequate (2 µM) and deficient (0.2 µM) Zn level. There was a significant effect of Zn level and genotypes on biomass production and Zn concentration. Wheat genotype Sehar-06 produced maximum shoot biomass under both adequate and deficient Zn condition and it was minimum in Vatan. Sehar-06 maintained higher Zn contents at deficient Zn level compared to other genotypes. Genotypes categorized according to their Zn utilization efficiency at deficient Zn supply fell into five categories. Sehar-06 and Auqab-2000 were categorized as HDMHE (high dry matter with high Zn utilization efficiency). Most of the genotypes were categorized as MDM-ME (medium dry matter with medium Zn utilization efficiency) category. Genotypes with better growth performance and Zn utilization efficiency such as Sehar-06 and Auqab-2000 can be recommended for Zn deficient soils and for breeding purposes.
M.A. Maqsood*, Rahmatullah1 , , A.M. Ranjha1 , M. Hussain2. (2009) Differential growth response and zinc utilization efficiency of wheat genotypes in chelator buffered nutrient solution , The Journal Soil & Environment , Volume 28, Issue 2.
-
Views
317 -
Downloads
36
