Paper · 2017 · Experimental Agriculture

EFFECTS OF CUTTING LENGTH AND BUD REMOVAL ON ROOT YIELD AND STARCH CONTENT OF CASSAVA UNDER RAINFED CONDITIONS

MAPITA PRASITSARN; ANAN POLTHANEE; VIDHAYA TRELO-GES; et al.

8
claims
15
verbatim quotes
5
citations
2
research areas
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Open access · cc-by-nc

Abstract

SUMMARY Bud removal of the cuttings at underground level has been claimed by cassava growers in Thailand as a method to increase cassava yield. This practise should be tested experimentally to explain the reason for yield increase. The objective of this study was to investigate the effects of bud removal and cutting length on storage root yield and starch content of three cassava varieties. Field experiment was conducted in a split–split plot design with four replications in 2010 and 2011, under rainfed conditions. Three cassava varieties (KU50, RY9 and HB60) were assigned as main plot. Two cutting lengths (15 cm and 30 cm) were assigned as sub plots, and two treatments of buds (buds cut and not cut) were assigned as sub–sub plots. The buds on the cuttings that were inserted into the soil were removed. In 2010, the plants from 15-cm long cuttings subjected to bud removal had higher fresh storage root yield (88.4 Mg ha −1 ) than did plants from 30-cm long cuttings subjected to bud removal (75.8 Mg ha −1 ). Cutting of buds also had higher fresh storage root yield (89.1 Mg ha −1 ) than did non bud-cutting (75.0 Mg ha −1 ). KU50 had the highest fresh storage root yield (91.4 Mg ha −1 ), dry root yield (48.4 Mg ha −1 ) and starch yield (20.1 Mg ha −1 ). Cutting length of 15 cm had higher starch concentration in storage roots (25.6%) than did cutting length of 30 cm (24.2%). HB60 had the highest starch concentration (27.0%) among cassava varieties tested. The data in 2011 were similar to the data in 2010. The responses of varieties to bud removal and cutting length are discussed.

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Claims 8

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

In 2010, 15 cm cuttings with buds removed yielded more fresh storage roots than 30 cm cuttings with buds removed.

Treatment
15-cm long cuttings subjected to bud removale0
Outcome
fresh storage root yielde0
Direction
highere0
Value
88.4 Mg ha −1e0
Qualifier
75.8 Mg ha −1e0
Comparator
30-cm long cuttings subjected to bud removale0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Manihot esculenta
Manihot esculenta · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“In 2010, the plants from 15-cm long cuttings subjected to bud removal had higher fresh storage root yield (88.4 Mg ha −1 ) than did plants from 30-cm long cuttings subjected to bud removal (75.8 Mg ha −1 )”

✓ located verbatim in the source · abstract, characters 814–1019 · show in text ↑
t0

“CASSAVA”

✓ located verbatim in the source · title, characters 78–85 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Bud cutting yielded more fresh storage roots than no bud cutting.

Treatment
Cutting of budse0
Outcome
fresh storage root yielde0
Direction
highere0
Value
89.1 Mg ha −1e0
Qualifier
75.0 Mg ha −1e0
Comparator
non bud-cuttinge0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Manihot esculenta
Manihot esculenta · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“Cutting of buds also had higher fresh storage root yield (89.1 Mg ha −1 ) than did non bud-cutting (75.0 Mg ha −1 )”

✓ located verbatim in the source · abstract, characters 1021–1136 · show in text ↑
t0

“CASSAVA”

✓ located verbatim in the source · title, characters 78–85 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

KU50 had the highest fresh storage root yield among varieties.

Material
KU50e0
Outcome
fresh storage root yielde0
Direction
higheste0
Value
91.4 Mg ha −1e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Manihot esculenta
Manihot esculenta · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“KU50 had the highest fresh storage root yield (91.4 Mg ha −1 ), dry root yield (48.4 Mg ha −1 ) and starch yield (20.1 Mg ha −1 )”

✓ located verbatim in the source · abstract, characters 1138–1267 · show in text ↑
t0

“CASSAVA”

✓ located verbatim in the source · title, characters 78–85 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

KU50 had the highest dry root yield.

Material
KU50e0
Outcome
dry root yielde0
Direction
higheste0
Value
48.4 Mg ha −1e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Manihot esculenta
Manihot esculenta · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“KU50 had the highest fresh storage root yield (91.4 Mg ha −1 ), dry root yield (48.4 Mg ha −1 ) and starch yield (20.1 Mg ha −1 )”

✓ located verbatim in the source · abstract, characters 1138–1267 · show in text ↑
t0

“CASSAVA”

✓ located verbatim in the source · title, characters 78–85 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

KU50 had the highest starch yield.

Material
KU50e0
Outcome
starch yielde0
Direction
higheste0
Value
20.1 Mg ha −1e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Manihot esculenta
Manihot esculenta · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“KU50 had the highest fresh storage root yield (91.4 Mg ha −1 ), dry root yield (48.4 Mg ha −1 ) and starch yield (20.1 Mg ha −1 )”

✓ located verbatim in the source · abstract, characters 1138–1267 · show in text ↑
t0

“CASSAVA”

✓ located verbatim in the source · title, characters 78–85 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Fifteen centimetre cuttings gave higher storage root starch concentration than 30 cm cuttings.

Treatment
Cutting length of 15 cme0
Outcome
starch concentration in storage rootse0
Direction
highere0
Value
25.6%e0
Qualifier
24.2%e0
Comparator
cutting length of 30 cme0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Manihot esculenta
Manihot esculenta · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“Cutting length of 15 cm had higher starch concentration in storage roots (25.6%) than did cutting length of 30 cm (24.2%)”

✓ located verbatim in the source · abstract, characters 1269–1390 · show in text ↑
t0

“CASSAVA”

✓ located verbatim in the source · title, characters 78–85 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

HB60 had the highest starch concentration among tested varieties.

Material
HB60e0
Outcome
starch concentratione0
Direction
higheste0
Value
27.0%e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Manihot esculenta
Manihot esculenta · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“HB60 had the highest starch concentration (27.0%) among cassava varieties tested”

✓ located verbatim in the source · abstract, characters 1392–1472 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The 2011 results were similar to those in 2010.

Outcome
data in 2011 were similar to the data in 2010e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Manihot esculenta
Manihot esculenta · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“The data in 2011 were similar to the data in 2010”

✓ located verbatim in the source · abstract, characters 1474–1523 · show in text ↑
t0

“CASSAVA”

✓ located verbatim in the source · title, characters 78–85 · show in text ↑

pruning · quality: sugar starch · Manihot esculenta (cassava)Results differ

10 papers: 1 positive, 9 negative or no effect

9 in the opposite direction

  1. no effect
  2. negative
  3. no effect

6 papers more in this group

See all 10 papers →

pruning · yield · Manihot esculenta (cassava)Results differ

26 papers: 13 positive, 13 negative or no effect

12 papers in the same direction as this paper · 13 in the opposite direction

  1. negative
  2. negative
  3. no effect

22 papers more in this group

See all 26 papers →

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.