Performance of Some Zinc Enriched Rice Genotypes in Different Agro-Ecological Conditions of Bangladesh
Journal Title: Scientia Agriculturae - Year 2015, Vol 11, Issue 1
Abstract
In Bangladesh, many people especially the children and pregnant woman are used to suffer from malnutrition. The children become stunted growth which might be due to deficiency of micronutrients specially the zinc. Rice variety enriched with zinc may be a good source of zinc for those deficient people. With this view, two micronutrient dense advanced lines: BR7671-37-2-2-3-7 and BR7833-11-1-1-2-1-2B5 along with BRRI dhan28 and BRRI dhan60 as checks were tested in eleven different locations of Bangladesh during Boro 2014. The trial was conducted in RCBD with three replications in each location. Among the lines, the line BR7671-37-2-2-3-7 gave the highest average yield of 7.07 t/ha in eight locations out of eleven. Another entry BR7833-11-1-1-2-1-2B5 produced the highest yield (6.43 t/ha) only in one location. The growth duration of the highest yielder line BR7671-37-2-2-3-7 was found to be 156 days. BR7833-11-1-1-2-1-2B5 matured in 144 days which was the shortest among the entries. 1000-grain weight of BR7833-11-1-1-2-1-2B5 was the lowest (19.6g) among the lines and check varieties. On the other hand, 1000-grain weight (27.7g) of the highest yielder line BR7671-37-2-2-3-7 indicates its larger bold grains. Most farmers preferred BR7671-37-2-2-3-7 mainly for its higher yield, lodging tolerance, green erect flag leaf and almost freeness from insects and diseases attack. Farmers also preferred another line BR7833-11-1-1-2-1-2B5 due to its shorter growth duration, relatively better yield, fine grain and attractive color. Considering micronutrient (zinc) enriched, higher yield, medium growth duration, non-shattering habit and farmers’ opinion, BR7671-37-2-2-3-7 was recommended for Proposed Variety Trial (PVT).
Authors and Affiliations
M. S. I Mamin, M. R Biswash, R Barua, A Zahan, S Naher, M. H. R Mukul, B Karmakar, M. A Islam
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