Kimani N. C

Jomo Kenyatta University of Agriculture and Technology P.O Box 62000-00200 Nairobi, Kenya,
Kenya Agricultural and Livestock Research Organisation, Food Crops Research Centre-Njoro P.O Box PRIVATE BAG-2107 Njoro, Kenya

Onguso J.

Jomo Kenyatta University of Agriculture and Technology P.O Box 62000-00200 Nairobi, Kenya,

Njau P.

Kenya Agricultural and Livestock Research Organisation, Food Crops Research Centre-Njoro P.O Box PRIVATE BAG-2107 Njoro, Kenya