Clonal selection
|
- Considerable amount of variability exists in the crop in India and much more is available in other cassava growing regions, particularly in tropical south Latin America, which is the centre of origin for cassava.
- This breeding technique has been used to develop improved cultivars at TNAU such as CO1, CO2and CO3.
|
Varieties
|
Pedigree
|
Yield
(t/ha)
|
Duration
(months)
|
Starch
(%)
|
Year of release
|
|
CO 1
|
Clonal selection (ME7) from a local type collected from Tiruchirapalli district.
|
29.97
|
8.5 to 9
|
35.0
|
1977
|
|
CO 2
|
Clonal selection (ME 167) from an open pollinated seedling progenies raised from the seeds collected from a Thiruvarur type in Thanjavur district.
|
35.37
|
8 to 8.5
|
34.50
|
1984
|
|
CO 3
|
Clonal selection (ME120-1) from seedling progenies of open pollinated seeds obtained from IITA, Ibandan, Nigeria.
|
42.58
|
8
|
35.60
|
1993
|
|
CO (TP)4
|
clonal selection from one of the seedling progenies of the hybrid SM1679 (CM 2766-5 x CM 4843) obtained from CIAT
|
50.60
|
8.5
|
40.0
|
2002
|
|
Last modified: Monday, 30 January 2012, 9:00 PM
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