2International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Institute of Agricultural Research, Ahmadu Bello University, PMB, 1044, Zaria, Nigeria.
National Research Centre for Sorghum, IARI Regional Station, Rajendranagar Hyderabad, 500 030
1Present address: International Crops Research Institute for the Semi-Arid Tropics (IGRISAT), ICRISAT Patancheru P.O., Andhra Pradesh 502 324, India.
*Part XXIV of Genetic analysis of some extoict Indian cross in Sorghum, Part XXIII appeared in Indian J. Genet., 41.
Internodal patterns in exotic, Indian, hybrid and cross deritatives of sorghum have been investigated by fitting first, second and third degree polynomial curves. The behaviour of various groups and their comparison with high yielding hybrids indicate that the linear pattern may have an adaptive advantage. Besides alteration of plant type through recombination breeding for duration, dry matter production and distribution, the temperate-tropical crosses of sorghum also enable manipulation of internodal patterns.
