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EFFECT OF SOIL TYPES ON THE SEED GERMINATION OF HELIANTHUS ANNUUS L

Article Id: ARCC4821 | Page : 101 - 103
Citation :- EFFECT OF SOIL TYPES ON THE SEED GERMINATION OF HELIANTHUS ANNUUS L.Agricultural Science Digest.2003.(23):101 - 103
M. Idu, A.I. Ogboghodo· and A.C. Omonhinmin
Address : Department of Biological Sciences, Federal University of Technology, Vola, Adamawa State, Nigeria

Abstract

Sixteen tpaize genotypes were analysed for variation in relative growth rate (RGR) and leaf area ratio (LAR) that influenced seed yield and ancillary characters. Two genotypes MRC 3 and 8 maintained high RGR (0.11 to 0.12 g/g/day) between 45–60 DAS. Three genotypes MRC 3, 8 and 13 recorded high LAR values between 30–45 to 75–90 DAS. MRC 8 with superior LAR recorded maximum 100 seed weIght (31.3 g) and seed yield (24.68 q/ha) due to its high photosynthetic efficiency. All th'e three genotypes Viz., MRC-3, 8 and 13 with promising physiological parameters can be utilized in breeding programmes to evolve better genotypes.

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