BIOCHEMICAL EVALUATION OF ORGANICALLY GROWN WHEAT GENOTYPES
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Date
2019-07-23
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CSKHPKV. Palampur
Abstract
In the present investigation entitled “Biochemical evaluation of organically grown wheat
genotypes” the grains of twenty-four selected genotypes of wheat each for organically and
inorganically grown were evaluated for biochemical attributes of dietary significance and
nutritional aspects. Statistically significant variations in wheat genotypes grown under
organic production system were observed in moisture content (11.06 to 13.08%), ash (1.12 to
2.26%), crude protein (8.27 to 12.88%), fat content (1.15 to 3.27%), crude fibre content (1.02
to 2.4%), carbohydrates (69.06 to 74.40%), total soluble protein (0.33 to 0.68 mg/100g),
lysine content (0.17 to 0.31 mg/100g) and in vitro protein digestibility (64.29 to 79.58%).
Genotypes grown under inorganic production system varied significantly in moisture content
(11.16 to 14.54 %), ash (1.15 to 2.27 %), crude protein (8.54 to 12.07%), fat (1.15 to 3.03%),
crude fibre (1.2 to 2.8%), carbohydrates (67.74 to 75.12%), total soluble protein (0.48 to 0.66
mg/100g), lysine content (0.26 to 0.37 mg/100g) and in vitro protein digestibility (62.44 to
79.95%). The range of variation for minerals in organically grown wheat genotypes, viz.,
sodium, copper, iron, zinc and manganese were found to be in order of 25.75-40 mg/100g,
0.28-0.69 mg/100g, 6.24-6.63 mg/100g, 2.67-6.97 mg/100g and 1.02-1.84 mg/100g
respectively. The trend in inorganically grown wheat genotypes for variability in sodium,
copper, iron, zinc and manganese was found to be 28.55-44.25 mg/100g, 0.33-0.50 mg/100g,
6.24-6.37 mg/100g, 1.54-5.80 mg/100g and 1.23-1.99 mg/100g respectively. Amongst the
organically grown wheat genotypes, the highest value was observed in HPW-972 for crude
protein and ash; in HPW-973 for crude fat; in KANKU for carbohydrates; PW-1054 for in
vitro protein digestibility. In case of inorganically grown wheat genotypes, highest value was
observed in HPWO-4 for protein; in HPW-972 and HPW-155 for fat; in ML-1099 for
carbohydrates; in PW-1054 for in vitro protein digestibility and ash. The information
obtained from this study has been used for carrying out the cumulative grading of genotypes
both grown under organic and inorganic production system for nutritionally desirable
characters. On grading genotypes grown under different systems together, inorganically
grown AB-1 genotype ranked first and organically grown genotype HPW-980 ranked second.