Abstract
Flowering in cassava is closely linked with branching. Early-flowering genotypes branch low and abundantly. Although farmers prefer late flowering genotypes because of their erect plant architecture, their usefulness as progenitors in breeding is limited by their low seed production. In general, the first inflorescence aborts in cassava. Preventing this abortion would result in early production of seeds and make cassava breeding more efficient. The objective of this study was to assess if pruning young branches prevents the abortion of first inflorescences and promotes early fruit and seed set. Four genotypes with early, late, very late and no flowering habits were grown under an extended photoperiod (EP) or normal dark night conditions (DN). Additional treatments included pruning young branches at the first or second flowering event and spraying (or not) benzyladenine (BA) after pruning. One genotype failed to flower and was not considered further. For the remaining genotypes, EP proved crucial to induce an earlier flowering, which is a pre-requisite for pruning. Total production of seeds in EP plots was 2971 versus 150 in DN plots. For plants grown under EP, the average number of seeds per plant without pruning was 3.88, whereas those pruned produced 17.60 seeds per plant. Pruning at the first branching event led to higher number of seeds per plant (26.25) than pruning at the second flowering event (8.95). In general, applying BA was beneficial (38.52 and 13.98 seeds/plant with or without spraying it, respectively). The best combination of treatments was different for each genotype. Pruning young branches in the first flowering event not only prevented the abortion of inflorescences but also induced the feminization of male flowers into hermaphrodite or female-only flowers. The procedures suggested from this study (combining EP, pruning young branches and spraying BA), allowed the production of a high number of seeds from erect cassava genotypes in a short period. The implementation of these procedures will improve the breeding efficiency in cassava.
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Claims 11
Claim · model-written summary
One cassava genotype failed to flower.
- Taxon
- Cassava
Manihot esculentat0 - Outcome
- failed to flowere0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“One genotype failed to flower and was not considered further.”
t0“Cassava”
Claim · model-written summary
Extended photoperiod was crucial for earlier flowering in the remaining cassava genotypes.
- Taxon
- CassavaManihot esculentat0
- Treatment
- EPe0
- Outcome
- floweringe0
- Direction
- earliere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For the remaining genotypes, EP proved crucial to induce an earlier flowering, which is a pre-requisite for pruning.”
t0“Cassava”
Claim · model-written summary
Cassava seed production was 2971 in extended photoperiod plots versus 150 in normal dark night plots.
- Taxon
- CassavaManihot esculentat0
- Treatment
- EPe0
- Outcome
- Total production of seedse0
- Direction
- higherinferrede0
- Value
- 2971e0
- Qualifier
- 150e0
- Comparator
- DNe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total production of seeds in EP plots was 2971 versus 150 in DN plots.”
t0“Cassava”
Claim · model-written summary
Under extended photoperiod, pruned cassava plants produced 17.60 seeds per plant compared with 3.88 without pruning.
- Taxon
- CassavaManihot esculentat0
- Treatment
- prunede0
- Outcome
- average number of seeds per plante0
- Direction
- higherinferrede0
- Value
- 17.60 seeds per plante0
- Qualifier
- 3.88e0
- Comparator
- without pruninge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For plants grown under EP, the average number of seeds per plant without pruning was 3.88, whereas those pruned produced 17.60 seeds per plant.”
t0“Cassava”
Claim · model-written summary
Pruning cassava at the first branching event produced 26.25 seeds per plant, higher than 8.95 at the second flowering event.
- Taxon
- CassavaManihot esculentat0
- Treatment
- Pruning at the first branching evente0
- Outcome
- number of seeds per plante0
- Direction
- highere0
- Value
- 26.25e0
- Qualifier
- 8.95e0
- Comparator
- pruning at the second flowering evente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pruning at the first branching event led to higher number of seeds per plant (26.25) than pruning at the second flowering event (8.95).”
t0“Cassava”
Claim · model-written summary
Benzyladenine application benefited cassava seed production, with 38.52 seeds per plant versus 13.98 without spraying.
- Taxon
- CassavaManihot esculentat0
- Treatment
- applying BAe0
- Outcome
- seeds/plante0
- Direction
- higherinferrede0
- Value
- 38.52e0
- Qualifier
- 13.98e0
- Comparator
- without sprayinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In general, applying BA was beneficial (38.52 and 13.98 seeds/plant with or without spraying it, respectively).”
t0“Cassava”
Claim · model-written summary
The best treatment combination differed among cassava genotypes.
- Taxon
- CassavaManihot esculentat0
- Outcome
- best combination of treatmentse0
- Direction
- differente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The best combination of treatments was different for each genotype.”
t0“Cassava”
Claim · model-written summary
Pruning young branches at first flowering prevented cassava inflorescence abortion.
- Taxon
- CassavaManihot esculentat0
- Treatment
- Pruning young branches in the first flowering evente0
- Outcome
- abortion of inflorescencese0
- Direction
- preventede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pruning young branches in the first flowering event not only prevented the abortion of inflorescences but also induced the feminization of male flowers into hermaphrodite or female-only flowers.”
t0“Cassava”
Claim · model-written summary
Pruning at first flowering induced conversion of male cassava flowers to hermaphrodite or female-only flowers.
- Taxon
- CassavaManihot esculentat0
- Treatment
- Pruning young branches in the first flowering evente0
- Outcome
- feminization of male flowers into hermaphrodite or female-only flowerse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pruning young branches in the first flowering event not only prevented the abortion of inflorescences but also induced the feminization of male flowers into hermaphrodite or female-only flowers.”
t0“Cassava”
Claim · model-written summary
Combined extended photoperiod, pruning and benzyladenine enabled high seed production from erect cassava genotypes in a short period.
- Taxon
- cassavaManihot esculentae0
- Treatment
- combining EP, pruning young branches and spraying BAe0
- Outcome
- production of a high number of seedse0
- Direction
- highe0
- Qualifier
- in a short periode0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The procedures suggested from this study (combining EP, pruning young branches and spraying BA), allowed the production of a high number of seeds from erect cassava genotypes in a short period.”
Claim · model-written summary
The authors conclude that implementing these procedures will improve cassava breeding efficiency.
- Taxon
- cassavaManihot esculentae0
- Outcome
- implementation of these procedurese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The implementation of these procedures will improve the breeding efficiency in cassava.”
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See all 18 papers →light · yield · Manihot esculenta (cassava)Results agree
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pruning · phenology · Manihot esculenta (cassava)Results agree
2 papers in the same direction as this paper
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light · phenology · Manihot esculenta (cassava)Results agree
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Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.