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V. Geethalakshmi

Tamil Nadu Agricultural University Coimbatore, INDIA

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STUDY OF HETEROSIS IN AMERICAN COTTON

G.A. Samuel Rajan, G. Kandasamy, C. Vanniarajanand G. Rajaravindran

Affiliations

¹Department of Agricultural Botany, Agricultural College and Research Institute, TNAU, K1llikulam - 628 252, India

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Cite article:- Rajan Samuel G.A., Kandasamy G., Rajaravindran G. Vanniarajanand C. (2025). STUDY OF HETEROSIS IN AMERICAN COTTON. Indian Journal of Agricultural Research. 34(3): 156-159. doi: .

ABSTRACT

Thirteen parents belonging to Gossypium hirsutum along with their 30 F1 hybrids were evaluated in L " T model for 15 characters. Most of the crosses showed low mean performance for their parents, but having high heterotic vigour. The characters plant height, number of sympodia per plant, number of bolls per plant and most of the quality characters studied showed more nunber of significant heterotic crosses for all the three types of heterosis. The hybrid TSH 289 " MCU 10 was found to be highly heterotic for seed cotton yield and number of bolls per plant than other crosses. The parents HLS 72, TAU 10 and LRA 5166, showed high mean performance, produced heterotic crosses for the quality characters.

KEYWORDS

REFERENCES

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Basu, A.K. et al. (1995) In : Hybrid research and development. (M. Ral and S. Maurla Eds.) Indian Society of Seed Technology, pp. 63-80.
Singh, D.P. and Singh, R.B. (1980) Indian J. Agric. Sci., 50(2) : 537-540.
Swamlnathan, M.S. et al. (1972) In: Rice Breeding IRRI, Philippines, pp. 109-613

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