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Disease Tolerance


In 1994-1996 Gray leaf spot disease (GLS; caused by Cercospora zeae-maydis Tehon and Daniels) which affects maize spread to Zimbabwe from South Arica KwaZulu Natal.   Maize is predominantly grown by small-scale farmers without fungicides; hence, there was need to develop GLS resistant hybrids. Seed Co became the first company to come up with SC 709 a single cross variety which was resistant to the GLS.  There is limited information about the mode of inheritance for GLS resistance in regionally adapted germplasm.

Soya Beans

Soybean rust is potentially one of the most significant diseases of soybean. It can spread quickly and cause leaf spots and defoliation of soybean plants. Under favorable conditions, the pathogen can cause yield losses greater than 50%. Soybean rust was first found in the continental United States in the South in 2004. Since then, the disease spread and became a global outbreak however Seed Co was again the first to release varieties that are resistant eg SC Signal, SC Saxon, and SC Sentinel.

Small scale farmer who has improved his livelihood by planting SC506 and SC513.


Commercial farmer making a living from SC 506 .

A small-scale youth farmer producing SC 506 and roasting it on the street to make a living.