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2003•Unpublished venueRequires access

Variation in growth rates and seed yield in genotypes Of maize (Zea mays L.)

Ramesh Thatikunta, M. Yakadri, L. M. Rao

Open publisher page 1 citations

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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What this paper is about

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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Available 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.

Key concepts: Forensic science, Zea mays, Biology, Relative growth rate, Genotype, Veterinary medicine, Yield (engineering), Horticulture

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