UMUCASS33 the new bug-busting, high-harvesting,taste-tingling Cassava Variety in Nigeria

UMUCASS33: the new bug-busting, high-harvesting, taste-tingling cassava variety now in Nigeria

October 14, 2011 5:37pm
GCP is delighted to announce the release of UMUCASS33, a new disease-resistant high-yielding cassava variety, a cross-continental perfect pedigree of South American and African parentage.
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New Varieties Released in TANZANIA CMD/CBSD Resistant


Written by Olalekan Akinbo

   Saturday, 22 January 2011 16:09

Clones Recommended for Official Release in eastern, southern and central zones, Tanzania (in brackets are the proposed names)

S/No Clone (Local Name) Pedigree Yield Potential(t/ha) Root taste Zone Agro ecology
1 B2C20-65 (Pwani) Namikonga♀ X AR 42-4♂ 50.8 Sweet Eastern and Southern Lowland warm sub humid
2 3C20-10 (Tulia) Kiroba♀ X AR3x-1♂ 36.1 Sweet Southern Lowland warm sub humid
3 2C80-42 (Bora) Namikonga♀ X AR42-4 23.3 Bitter Central Mid to high altitude warm semi arid
4 BC231-2 (Dodoma) AR11-12 X Namikonga 30.3 Sweet Central Mid to high altitude warm semi arid

Note: AR and CR series are cassava mosaic resistant parents introduced from CIAT possessing CMD2 gene for CMD/CBSD resistance. VARIETIES DESCRIPTION: Variety 1: b2C20-65

  1. Name of the crop: Cassava
  2. Botanical name: Manihot esculenta Crantz
  3. Genus: Manihot
  4. Family name: Euphorbiaceae
  5. Proposed name: Pwani
  6. Name under which it is tested: b2C20-65
  7. Agency responsible for development: Root/Tuber Crops Research Program (Directorate of Research and Development)
  8. Poposed area for release: Lowland warm sub humid agro ecology
  9. Proposed elevation: Low-high altitude (0-600.masl)
  10. Agency responsible for supply of breeder seed: Root/Tuber Crops Research Program
  11. Agency responsible for maintenance: Root/Tuber Crops Research Program
  12. Yield potential (t/ha): 50.8
  13. Maturity: 11-12 months
  14. Proposed year of release: 2010

Variety 2: bC231-2 1. Name of the crop: Cassava2. Botanical name: Manihot esculenta Crantz3. Genus: Manihot 4. Family name : Euphorbiaceae 5. Proposed name: Dodoma 6. Name under which it is tested: bC231-27. Agency responsible for development: Root/Tuber Crops Research Program (Directorate of Research and Development)8. Proposed areas for release: Mid to high altitude warm semi arid agro ecology 9. Proposed elevation: 670-1500.masl 10. Agency responsible for supply of breeder seed: Root/Tuber Crops Research Program (Directorate of Research and Development)11. Agency responsible for maintenance: Root/Tuber Crops Research Program (Directorate of Research and Development)12. Yield potential (t/ha): 36.1 13. Maturity: 9-10 Months14. Proposed year of release: 2010Variety 3: 3C20-10

  1. Name of the crop: Cassava
  2. Botanical name: Manihot esculenta Crantz
  3. Genus: Manihot
  4. Family name: Euphorbiaceae
  5. Proposed name: Tulia :
  6. Name under which it is tested: 3C20-10
  7. Agency responsible for development: Root/Tuber Crops Research Program (Directorate of Research and Development)
  8. Proposed area for release: Lowland warm sub humid agro ecology
  9. Proposed elevation: 0 -600 masl
  10. Agency responsible for supply of breeder seed: Root/Tuber Crops Research Program
  11. Agency responsible for maintenance: Root/Tuber Crops Research Program
  12. Yield potential (t/ha): 23.3
  13. Maturity: 9-10 months
  14. Proposed year of release: 2010

Variety 4: b2C80-42

  1. Name of the crop: Cassava
  2. Botanical name: Manihot esculenta Crantz
  3. Genus: Manihot
  4. Family name : Euphorbiaceae
  5. Proposed name: Bora
  6. Name under which it is tested: b2C80-42
  7. Agency responsible for development: Root/Tuber Crops Research Program (Directorate of Research and Development)
  8. Proposed area for release: Mid to high altitude warm semi arid agro ecology
  9. Proposed elevation: 670-1500.masl
  10. Agency responsible for supply of breeder seed: Root/Tuber Crops Research Program
  11. Agency responsible for maintenance: Root/Tuber Crops Research Program
  12. Yield potential (t/ha): 30.3
  13. Maturity: 9-10 months
  14. Proposed year of release: 2010

New Varieties Registered and Released in NIGERIA


Written by Olalekan Akinbo

The release of a new cassava variety (CR 41-10) in Nigeria that was wholly developed at International Centre for Tropical Agriculture (CIAT) by molecular breeding without any further on-site breeding in Africa.This is a first for the CIAT cassava program. The new variety is resistant to CMD, has high gari production, and a higher yield potential compared to three controls of a farmer preferred variety and two currently grown improved varieties. Continue reading

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