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Effect of growing annual forage legumes with maize and maize leaf defolation on grain and stover yield components and undersown forage production

By: Zewdu, T | Centro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT) Kenya | 7. Proceedings of the Eastern and Southern Africa Regional Maize Conference Nairobi (Kenya) 5-11 Feb 2002.
Contributor(s): Asregid, D [coaut.] | Friesen, D.K.|Palmer, A.F.E [eds.].
Material type: materialTypeLabelBookAnalytics: Show analyticsPublisher: Nairobi (Kenya) KARI|CIMMYT : 2002Description: p. 487-490.ISBN: 970-648-120-6.Subject(s): Defoliation | Food crops | Forage harvesters | Growth rate | Legumes AGROVOC | Maize | Stems | Stoves | Yield components | CIMMYT | KARIDDC classification: 338.16 Summary: Two experiments were conducted to assess the effect of forage legumes grown with maize and maize leaf defoliation on grain and stover yield and forage production and to select compatible forage legumes to be grown with improved maize. Three annual forage legumes were grown with maize in 1996 and 1997. Various proportions (rates) of maize leaf defoliation were also carried out when forage legumes were grown in association with maize in plots arranged in a split plot design. Maize leaf defoliation treatments (0,25,50,75 and 100%) were assigned to sub-plots and growth stages of maize at the time of defoliation (tasseling, silking and milk stages) as main-plot treatments. The forage legumes were established when undersown with maize at about knee height growth stage without reducing the grain and stover yield but the forage yield was low compared to sole forage production. Grain yield of maize was significantly affected by rate of leaf defoliation, growth stages and their interaction. There was also a significant effect on the yield of stem, cob and defoliated leaf due to rate of leaf defoliation. However. the yield of husk, leaves. tassel and the undersown forage legumes were affected by rate of leaf defoliation only. The results revealed that the critical rate of maize leaf defoliation that does not affect the ~rain and stover yield components as well as the yield of undersown forage crops lies below 50%.Collection: CIMMYT Publications Collection
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Book CIMMYT Knowledge Center: John Woolston Library

Lic. Jose Juan Caballero Flores

 

CIMMYT Publications Collection 338.16 FRI (Browse shelf) 1 Available 2G630188
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Two experiments were conducted to assess the effect of forage legumes grown with maize and maize leaf defoliation on grain and stover yield and forage production and to select compatible forage legumes to be grown with improved maize. Three annual forage legumes were grown with maize in 1996 and 1997. Various proportions (rates) of maize leaf defoliation were also carried out when forage legumes were grown in association with maize in plots arranged in a split plot design. Maize leaf defoliation treatments (0,25,50,75 and 100%) were assigned to sub-plots and growth stages of maize at the time of defoliation (tasseling, silking and milk stages) as main-plot treatments. The forage legumes were established when undersown with maize at about knee height growth stage without reducing the grain and stover yield but the forage yield was low compared to sole forage production. Grain yield of maize was significantly affected by rate of leaf defoliation, growth stages and their interaction. There was also a significant effect on the yield of stem, cob and defoliated leaf due to rate of leaf defoliation. However. the yield of husk, leaves. tassel and the undersown forage legumes were affected by rate of leaf defoliation only. The results revealed that the critical rate of maize leaf defoliation that does not affect the ~rain and stover yield components as well as the yield of undersown forage crops lies below 50%.

English

0410|AGRIS 0401|AL-Maize Program

Juan Carlos Mendieta

CIMMYT Publications Collection

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