Abstract
A foliar spray of boron (1 g borax litre-1) at the reproductive stage of sorghum varieties (PC 23, PC 9, PC 6 and HC 136), generally, increased the phosphorus content (24.5 per cent) and water soluble sugars (13.3 per cent) of seed coatings. The nitrogen content of a sorghum crop grown in a boron deficient soil improved only slightly (4.5 per cent) in spite of an elevated nitrate reductase activity (19.5 per cent). Such effects of boron seem to be associated with an increase in seed yield (14 per cent) and an improvement in the germination energy index. The magnitude of response was greater in variety HC 136 than the others.
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Misra, S.M., Sinha, N.C. & Tomer, P.S. Seed yield of sorghum grown in an alfisol, in relation to boron nutrition at the reproductive phase. Plant Soil 132, 293–296 (1991). https://doi.org/10.1007/BF00010411
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DOI: https://doi.org/10.1007/BF00010411