Paper · 2022 · Revista de Ciencias Agrícolas

Reduction of interrow spacing in cassava (Manihot esculenta Crantz) production

Antônio Dias Santiago; Sérgio De Oliveira Procópio; Camila Jorge Bernabé Ferreira; et al.

7
claims
12
verbatim quotes
0
citations
1
research areas
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Open access · cc-by-nc

Abstract

The interrow spacing commonly used in cassava cultivation in Brazil, especially in the Agreste region of Alagoas, ranges from 100 to 120cm. However, the reduction in row spacing can provide agronomic and environmental benefits in cassava cropping systems. Thus, this work aimed to evaluate the performance of two cassava varieties cultivated with reduced interrow spacing. Two experiments were conducted in the field, one in 2015/16 and another in 2017/18. A Split Plot design with four replications was used in both experiments. Four interrow spacing were evaluated in the main plot: 60, 80, 100 and 120cm, with plants spaced 60cm apart within rows, giving populations of 27,778, 20,833, 16,667 and 13,889 plants per hectare, respectively. In the subplots, two cassava varieties were evaluated: Caravela and Pretinha. An increase in interrow spacing promoted a linear reduction in the stem green mass of cassava. Plant height, leaf green mass, main stem diameter, root yield, tuberous root length, tuberous root diameter, flour percentage, flour yield, and starch content were not influenced by changes in interrow spacing. The Pretinha variety was superior to Caravela in the following evaluated traits: stem green mass, the diameter of tuberous roots, root yield, plant height, and flour yield. The results indicate the possibility of altering the interrow spacing in cassava to assist in the cultural management, without impacting crop yield.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc. Read at the source ↗

The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 7

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Increasing interrow spacing caused a linear reduction in the stem green mass of cassava.

Treatment
increase in interrow spacinge0
Outcome
stem green masse0
Direction
reductione0
Qualifier
lineare0

Not reportedComparator

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

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

Verbatim

e0

“An increase in interrow spacing promoted a linear reduction in the stem green mass of cassava”

✓ located verbatim in the source · abstract, characters 819–912 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Plant height, leaf green mass and main stem diameter of cassava were not influenced by changes in interrow spacing.

Treatment
interrow spacinge0
Outcome
Plant height, leaf green mass, main stem diametere0
Direction
not influencede0

Not reportedComparator

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

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

Verbatim

t0

“cassava”

✓ located verbatim in the source · title, characters 33–40 · show in text ↑
e0

“Plant height, leaf green mass, main stem diameter, root yield, tuberous root length, tuberous root diameter, flour percentage, flour yield, and starch content were not influenced by changes in interrow spacing”

✓ located verbatim in the source · abstract, characters 914–1123 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Root yield, tuberous root length and tuberous root diameter of cassava were not influenced by changes in interrow spacing.

Treatment
interrow spacinge0
Outcome
root yield, tuberous root length, tuberous root diametere0
Direction
not influencede0

Not reportedComparator

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

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

Verbatim

t0

“cassava”

✓ located verbatim in the source · title, characters 33–40 · show in text ↑
e0

“Plant height, leaf green mass, main stem diameter, root yield, tuberous root length, tuberous root diameter, flour percentage, flour yield, and starch content were not influenced by changes in interrow spacing”

✓ located verbatim in the source · abstract, characters 914–1123 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Flour percentage, flour yield and starch content of cassava were not influenced by changes in interrow spacing.

Treatment
interrow spacinge0
Outcome
flour percentage, flour yield, and starch contente0
Direction
not influencede0

Not reportedComparator

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

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

Verbatim

t0

“cassava”

✓ located verbatim in the source · title, characters 33–40 · show in text ↑
e0

“Plant height, leaf green mass, main stem diameter, root yield, tuberous root length, tuberous root diameter, flour percentage, flour yield, and starch content were not influenced by changes in interrow spacing”

✓ located verbatim in the source · abstract, characters 914–1123 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The Pretinha variety was superior to Caravela in stem green mass, tuberous root diameter and root yield.

Treatment
Pretinha varietye0
Outcome
stem green mass, the diameter of tuberous roots, root yielde0
Direction
superiore0
Comparator
Caravelae0

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

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

Verbatim

t0

“cassava”

✓ located verbatim in the source · title, characters 33–40 · show in text ↑
e0

“The Pretinha variety was superior to Caravela in the following evaluated traits: stem green mass, the diameter of tuberous roots, root yield, plant height, and flour yield”

✓ located verbatim in the source · abstract, characters 1125–1296 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The Pretinha variety was superior to Caravela in plant height and flour yield.

Treatment
Pretinha varietye0
Outcome
plant height, and flour yielde0
Direction
superiore0
Comparator
Caravelae0

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

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

Verbatim

t0

“cassava”

✓ located verbatim in the source · title, characters 33–40 · show in text ↑
e0

“The Pretinha variety was superior to Caravela in the following evaluated traits: stem green mass, the diameter of tuberous roots, root yield, plant height, and flour yield”

✓ located verbatim in the source · abstract, characters 1125–1296 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

The authors conclude that interrow spacing in cassava can be altered to assist cultural management without impacting crop yield.

Outcome
altering the interrow spacinge0
Qualifier
without impacting crop yielde0

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 results indicate the possibility of altering the interrow spacing in cassava to assist in the cultural management, without impacting crop yield”

✓ located verbatim in the source · abstract, characters 1298–1445 · show in text ↑

density · quality: sugar starch · Manihot esculenta (cassava)Positive and negative results

2 papers: 1 positive, 1 negative or no effect

1 in the opposite direction

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density · growth · Manihot esculenta (cassava)Positive and negative results

11 papers: 5 positive, 6 negative or no effect

5 papers in the same direction as this paper · 5 in the opposite direction

  1. positive
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density · yield · Manihot esculenta (cassava)Positive and negative results

23 papers: 17 positive, 6 negative or no effect

5 papers in the same direction as this paper · 17 in the opposite direction

  1. positive
  2. positive
  3. positive

19 papers more in this group

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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.