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African Crop Science Journal
African Crop Science Society
ISSN: 1021-9730
EISSN: 2072-6589
Vol. 3, No. 4, 1995, pp. 505-509
Bioline Code: cs95069
Full paper language: English
Document type: Research Article
Document available free of charge

African Crop Science Journal, Vol. 3, No. 4, 1995, pp. 505-509

 en Response of Short Season Maize Cultivars to Striga Infestation
Chivinge, O.A.; Mashingaidze, A.B. & Mujuru, T.

Abstract

A glasshouse experiment was conducted to assess tolerance/resistance of five short season maize cultivars namely, CG4141, CG4538, CG4585, PHB3427 and PHB3435 to Striga ( Striga asiatica check for this species in other resources (L.) Kuntze) infestation. Striga infested all cultivars but to different levels. Maize ( Zea mays check for this species in other resources ) height and diameter were only suppressed in cv CH4141. Shoot fresh and dry weights were suppressed in all other infested cultivars except PHB3427. All cultivars but PHB3427 and CG4538 were very susceptible with CG4141 suffering the greatest reductions in most parameters. Striga emerged 12 to 17 days earlier in PHB3435 and CG4141 than in PHB3435 and more plants emerged from CG4141 and CG4538. Striga plants supported by CG4141 and PHB3435 flowered earlier than others. The number of capsules in Striga was lowest in plants which emerged on CG4585 while no capsules were formed on plants growing on PHB3427. Generally, CG cultivars were more susceptible than PHBs. Farmers are recommended to grow cultivars PHB3427 and CG4585 which were relatively more resilient to the weed.

Keywords
Capsules, dry weight, Striga asiatica, tolerance

 
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