Abstract
Dry root yield (DRY) should be highly considered in cassava breeding programs as it plays a key role in food industries. One hundred and forty-two cassava genotypes developed from open-pollinated crosses and 3 national check varieties, TMS 07/0539,TMS 30572 and TMS 30555 were assessed for root yield and yield components over 2 years in Ibadan, Nigeria. Data on number of storage roots/plant (SRN), fresh root yield (FRY), dry matter content (DMC), and harvest index (HI) were subjected to a combined analysis of variance (ANOVA) over the two seasons. There were highly significant variations among the genotypes for all the evaluated attributes. The FRY varied from 4.83 to 37.23 t ha−1, while HI and DMC ranged from 0.21 to 0.65 and 11.37% to 43.92%, respectively. Four genotypes, namely UIC-17-282, UIC-17-1677, UIC-17-325, and UIC-17-2009 had higher DRY of 11.53, 11.03, 10.10, and 10.03 t ha−1, respectively, than the check varieties. The adoption of the selection index (SI) approach enabled the identification of the top 13 genotypes which outperformed the national checks with SI ranging between 29.1 and 45.0. High dry root-yielding genotypes identified in our study are suitable candidates for release to farmers; and as parents for further enhancement of cassava for DRY in West Africa. Findings from this research have broader implications for cassava improvement efforts for high dry root productivity.
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Claims 10
Claim · model-written summary
Cassava genotypes varied highly significantly for all evaluated attributes.
- Taxon
- cassava
Manihot esculentat0 - Outcome
- variations among the genotypes for all the evaluated attributese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There were highly significant variations among the genotypes for all the evaluated attributes.”
t0“cassava root yield”
Claim · model-written summary
Cassava fresh root yield ranged from 4.83 to 37.23 t ha−1.
- Taxon
- cassavaManihot esculentat0
- Outcome
- FRYe0
- Value
- 4.83 to 37.23 t ha−1e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The FRY varied from 4.83 to 37.23 t ha−1”
t0“cassava root yield”
Claim · model-written summary
Cassava harvest index ranged from 0.21 to 0.65.
- Taxon
- cassavaManihot esculentat0
- Outcome
- HIe0
- Value
- 0.21 to 0.65e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“HI and DMC ranged from 0.21 to 0.65 and 11.37% to 43.92%, respectively”
t0“cassava root yield”
Claim · model-written summary
Cassava dry matter content ranged from 11.37% to 43.92%.
- Taxon
- cassavaManihot esculentat0
- Outcome
- DMCe0
- Value
- 11.37% to 43.92%e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“HI and DMC ranged from 0.21 to 0.65 and 11.37% to 43.92%, respectively”
t0“cassava root yield”
Claim · model-written summary
UIC-17-282 had dry root yield of 11.53 t ha−1, higher than check varieties.
- Taxon
- cassavaManihot esculentat0
- Material
- UIC-17-282e0
- Outcome
- DRYe0
- Direction
- highere0
- Value
- 11.53e0
- Comparator
- check varietiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Four genotypes, namely UIC-17-282, UIC-17-1677, UIC-17-325, and UIC-17-2009 had higher DRY of 11.53, 11.03, 10.10, and 10.03 t ha−1, respectively, than the check varieties.”
t0“cassava root yield”
Claim · model-written summary
UIC-17-1677 had dry root yield of 11.03 t ha−1, higher than check varieties.
- Taxon
- cassavaManihot esculentat0
- Material
- UIC-17-1677e0
- Outcome
- DRYe0
- Direction
- highere0
- Value
- 11.03e0
- Comparator
- check varietiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Four genotypes, namely UIC-17-282, UIC-17-1677, UIC-17-325, and UIC-17-2009 had higher DRY of 11.53, 11.03, 10.10, and 10.03 t ha−1, respectively, than the check varieties.”
t0“cassava root yield”
Claim · model-written summary
UIC-17-325 had dry root yield of 10.10 t ha−1, higher than check varieties.
- Taxon
- cassavaManihot esculentat0
- Material
- UIC-17-325e0
- Outcome
- DRYe0
- Direction
- highere0
- Value
- 10.10e0
- Comparator
- check varietiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Four genotypes, namely UIC-17-282, UIC-17-1677, UIC-17-325, and UIC-17-2009 had higher DRY of 11.53, 11.03, 10.10, and 10.03 t ha−1, respectively, than the check varieties.”
t0“cassava root yield”
Claim · model-written summary
UIC-17-2009 had dry root yield of 10.03 t ha−1, higher than check varieties.
- Taxon
- cassavaManihot esculentat0
- Material
- UIC-17-2009e0
- Outcome
- DRYe0
- Direction
- highere0
- Value
- 10.03 t ha−1e0
- Comparator
- check varietiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Four genotypes, namely UIC-17-282, UIC-17-1677, UIC-17-325, and UIC-17-2009 had higher DRY of 11.53, 11.03, 10.10, and 10.03 t ha−1, respectively, than the check varieties.”
t0“cassava root yield”
Claim · model-written summary
Selection index identified 13 top cassava genotypes outperforming national checks, with SI of 29.1–45.0.
- Taxon
- cassavaManihot esculentat0
- Outcome
- SIe0
- Direction
- outperformede0
- Value
- 29.1 and 45.0e0
- Qualifier
- top 13 genotypese0
- Comparator
- national checkse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The adoption of the selection index (SI) approach enabled the identification of the top 13 genotypes which outperformed the national checks with SI ranging between 29.1 and 45.0.”
t0“cassava root yield”
Claim · model-written summary
High dry-root-yielding cassava genotypes are recommended for farmer release and breeding in West Africa.
- Taxon
- cassavaManihot esculentae0
- Outcome
- release to farmers; and as parents for further enhancement of cassava for DRYe0
- Setting
- West Africae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“High dry root-yielding genotypes identified in our study are suitable candidates for release to farmers; and as parents for further enhancement of cassava for DRY in West Africa.”