ICRISAT, - (1989) Pearl Millet Open-pollinated Variety ICTP 8203. Manual. International Crops Research Institute for the Semi-Arid Tropics.
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Abstract
The cultivar, released for cultivation in Maharashtra and Andhra Pradesh in 1988, was developed by randomly mating 5 S2 progenies of an early-maturing Iniari landrace originating from northern Togo. The S2 progenies were selected on the basis of grain yield and phenotypic similarity for plant height, maturity and ear type, and diallel crosses of the sib-multiplied seeds were performed in the dry season of 1983. The cultivar was produced by bulking equal amounts of seeds of the resulting 10 crosses and has since been maintained once by controlled crossing and thereafter by random mating in isolation. In trials of Patancheru, Hisar and Bhavanisegar in the 1983 rainy season, ICTP 8203 yielded 18% more than WC-C75, the leading commercial open-pollinated cultivar. In trials throughout India in 1984-86, yields were 96% of WC-C75. In Maharashtra and Andhra Pradesh, ICTP 8203 yielded 7 and 11% more, respectively, than WC-C75, was early-maturing, flowered 2-3 days earlier, had faster grain filling and showed a high level of resistance to downy mildew [Sclerospora graminicola]. Under conditions of drought stress in Andhra Pradesh, grain yields were 20% greater than in WC-C75. In Maharashtra and Andhra Pradesh, plant height was 1.5-1.6 m with 16-18 cm-long panicles. The grain is grey and less dense than that of WC-C75, with a 1000-grain weight of 12 g.
| Item Type: | Monograph (Manual) |
|---|---|
| Divisions: | UNSPECIFIED |
| CRP: | UNSPECIFIED |
| Subjects: | Mandate crops > Millets |
| Depositing User: | Library ICRISAT |
| Date Deposited: | 25 Aug 2011 06:14 |
| Last Modified: | 08 Oct 2012 10:38 |
| URI: | http://oar.icrisat.org/id/eprint/469 |
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