| Titre : |
Selection gains in pearl millet composites in Zambia |
| Type de document : |
texte imprimé |
| Auteurs : |
F.P. Muuka, Auteur ; Pheru Singh, Auteur |
| Editeur : |
ICRISAT |
| Année de publication : |
1996 |
| Importance : |
p 145-152 |
| Langues : |
Anglais (eng) |
| Catégories : |
SCIENCES AGRICOLES
|
| Mots-clés : |
ZAMBIE MIL A CHANDELLE COMPOSITES |
| Résumé : |
Half-sib and mass selection procedures are employed to improve grain yield and other characters of composites in the Zambian Pearl Millet Improvement Programme. Currently six composites are in different cycles of improvement, four of which formed the basis of the present study. The method used to improve the composites and derive varieties from them under limited physical facilities, resources and skilled technical personnel is described. The test of cycle bulks over 2 years indicated increased grain yield and corresponding plant height without any change in head length and flowering dates over initial bulks. Fourth-cycle bulks of early and medium composites outperformed their original counterparts, giving 4.0% and 2.6% gains per cycle respectively.
Similarly, third-cycle dwarf and late composites gave 4.7 and 3.3 % gains per cycle. Medium and late composites showed higher yield potential and are therefore the source of high-yielding varieties. Lubasi, a variety mass-selected from medium composite has been released and ZPMV 90521, which was developed by mass selection from the CO cycle of late composite, is the most promising among the new varieties.
|
| Numéro du document : |
A10433/F00 132 |
| Niveau Bibliographique : |
2 |
| Bull1 (Theme principale) : |
SCIENCES ET PRODUCTION VEGETALES |
| Bull2 (Theme secondaire) : |
SYSTEMES ET MODES DE CULTURE |
Selection gains in pearl millet composites in Zambia [texte imprimé] / F.P. Muuka, Auteur ; Pheru Singh, Auteur . - ICRISAT, 1996 . - p 145-152. Langues : Anglais ( eng)
| Catégories : |
SCIENCES AGRICOLES
|
| Mots-clés : |
ZAMBIE MIL A CHANDELLE COMPOSITES |
| Résumé : |
Half-sib and mass selection procedures are employed to improve grain yield and other characters of composites in the Zambian Pearl Millet Improvement Programme. Currently six composites are in different cycles of improvement, four of which formed the basis of the present study. The method used to improve the composites and derive varieties from them under limited physical facilities, resources and skilled technical personnel is described. The test of cycle bulks over 2 years indicated increased grain yield and corresponding plant height without any change in head length and flowering dates over initial bulks. Fourth-cycle bulks of early and medium composites outperformed their original counterparts, giving 4.0% and 2.6% gains per cycle respectively.
Similarly, third-cycle dwarf and late composites gave 4.7 and 3.3 % gains per cycle. Medium and late composites showed higher yield potential and are therefore the source of high-yielding varieties. Lubasi, a variety mass-selected from medium composite has been released and ZPMV 90521, which was developed by mass selection from the CO cycle of late composite, is the most promising among the new varieties.
|
| Numéro du document : |
A10433/F00 132 |
| Niveau Bibliographique : |
2 |
| Bull1 (Theme principale) : |
SCIENCES ET PRODUCTION VEGETALES |
| Bull2 (Theme secondaire) : |
SYSTEMES ET MODES DE CULTURE |
|
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