Zewdu, T.

Effect of growing annual forage legumes with maize and maize leaf defolation on grain and stover yield components and undersown forage production - Nairobi (Kenya) KARI|CIMMYT : 2002 - p. 487-490 - Printed

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%.


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Defoliation
Food crops
Forage harvesters
Growth rate
Legumes
Maize
Stems
Stoves
Yield components

CIMMYT KARI

338.16 / FRI
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Lunes –Viernes 9:00 am. 17:00 pm. Si tiene cualquier pregunta, contáctenos a CIMMYT-Knowledge-Center@cgiar.org