Browsing by Author "Ebiyau, Johnie"

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    Registration of ‘NAROSORG1 and NAROSORG3’ Sorghum Varieties with High Grain Yield and Superior Grain Qualities from Uganda
    (International Journal of Applied Agricultural Sciences, 2020) Andiku, Charles; Lubadde, Geofrey; Aru, Charles John; Emanio, John; Adrogu Ugen, Michael; Ebiyau, Johnie
    Sorghum [Sorghum bicolor (L.) Moench] is the third most important cereals after maize and rice in Uganda. It is mainly grown by the resource-poor rural farmers in Uganda as a staple food, but this trend has changed recently due to the gradual transition of the crop from traditional food crops to a cash crop. National Semi-Arid Resources Research Institute (NaSARRI) therefore developed and released NAROSORG1 and NAROSORG3 in 2017 with high yields and superior grain qualities for food and commercial beer production in the country. NAROSORG1 and NAROSORG3 are a selection from the International Crops Research Institute for the Semi-Arid Tropics (ICRISAT) advanced breeding lines ICSR160 and IESV92043DL respectively. Sorghum line, IESV92043DL (NAROSORG3) was bred by ICRISAT Nairobi from a cross between KARI Mtama 1 x Seredo and developed into an open-pollinated pure line variety through pedigree selection. However, the sorghum line, ICSR160 (NAROSORG1) was introduced as a Restorer or Male Parent (R-Line) for hybrid development from ICRISAT India but adapted well as a variety with very good brewing qualities for lager beer (no tannin and high extracts) production and its white-seeded variety. Performance evaluation was conducted in Uganda for two consecutive seasons of 2017 and the results showed that NAROSORG1 and NAROSORG3 had significantly higher grain yields (13.8% and 12.2%) and 1000-seed weight percentages (30.2% and 28.9%) respectively than commercial check variety, SESO1. NAROSORG1 has a good grain quality with 100% free tannin levels which is good for commercial lager beer production while NAROSORG3 had sweet juicy stalk with stay-green trait suitable for forage production in addition to good grain quality.
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    Registration of ‘NAROSORG2’ Sorghum Variety with Desirable Farmer Attributes for Uganda
    (International Journal of Applied Agricultural Sciences, 2020) Andiku, Charles; Lubadde, Geofrey; Aru, Charles John; Emanio, John; Adrogu Ugen, Michael; Ebiyau, Johnie
    Sorghum [Sorghum bicolor (L.) Moench] is the major cereal in Uganda that has recently evolved from being a food crop to a cash crop. However, low farm yields of less than 500 kg ha-1 have been recorded due to both abiotic and biotic stresses. Consequently, NaSARRI developed NAROSORG2, released in 2017, that can withstand some of the abiotic and biotic stresses. NAROSORG2 is a derived red seeded local landrace selection (IS8193) from East Africa, advanced by the International Crops Research Institute for the Semi-Arid Tropics (ICRISAT) through repeated bulk selections for tolerance against abiotic and biotic stresses. The agronomic evaluation was carried out in Uganda for the first and second rainy seasons of 2017 and the findings indicated that NAROSORG2, out-performed the check commercial variety, SESO3 with mean grain yield of 2740 kg ha-1 across the entire environment. It also recorded early days to 50% flowering of 65.23 days (early maturity variety) like the commercial check variety, SESO3 with a medium height of 165.35 cm. NAROSORG2 has superior agronomic traits of stay-green trait, resistant to bird damage due to high levels of tannins, drought, midge, and Striga tolerant, good for food, and local brew. Therefore, it will supplement other released varieties in contributing to food security and poverty alleviation among the rural communities in Uganda.