National Research Centre for Sorghum and All India Coordinated Sorghum Improvement Project, IARI-Regional Station, Rajendranagar, Hyderabad-500 030 (A.P.)
The patterns of dry matter production and distribution along with major nutrients N, P in some exotic (temperate) and Indian (tropical) sorghums and their derivatives was studied. Hybrids and some of the recombinant derivatives of exotic × Indian crosses exhibit higher and stable levels of production. This is primarily attributable to a reduction of duration to match the duration of rainy season, a reduction of total dry matter but better distribution between stalk and ear, two peaks for rates of growth and a superior community performance. Recombinant genotypes with such attributes could be isolated from exotic × Indian crosses although their occurrence may be confined to a few selected crosses.
