Pa Wenela pasintha zedi ANatchereza Tidakumana ku sukulu ku Chiradzulu Lanena izi ndi bungwe lolimbikitsa kutukula ulimi wa trigu ndi chimanga ku mmawa ndi kummwera kwa Afrika la International Maize and Heat Improvement Centre ( CIMMYT ) lomwe lakhazikitsa polojekiti ya zaka 4 yotukula mbewu zopirira kukagwa ngamba .