Paper · 2019 · Research Society and Development

Forage yield, chemical composition and morphogenesis of Brachiaria brizantha cv. Piatã under regrowth periods

Newton de Lucena Costa; Antônio Neri Azevedo Rodrigues; João Avelar Magalhães; et al.

9
claims
18
verbatim quotes
3
citations
3
research areas
✓
Open access · cc-by

Abstract

With the objective to evaluate the effects of regrowth period (14, 21, 28, 35 and 42 days) on green dry matter yield (GDMY), chemical composition and morphogenetic and structural characteristics of Brachiaria brizantha cv. Piatã, was carried out an experiment under greenhouse with natural conditions of light and temperature. GDMY yields and regrowth, leaf blade length, and leaf lifespan rate increased consistently (P<.05) with regrowth period, however the nitrogen, phosphorus, magnesium and potassium contents decreased as regrowth period, while calcium contents were not affected by regrowth period. Maximum GDMY, leaf appearance and elongation rate, and leaf blade length were obtained with regrowth periods at 38.2; 41.1; 31.3 and 38.9 days, respectively. These data suggest that cutting at 35 to 42 regrowth days were optimal for obtain maximum yields and regrowth of rich forage and pasture persistence.

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Claims 9

Associationobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Green dry matter yield increased consistently with regrowth period.

Taxon
Brachiaria brizanthaUrochloa brizanthae4
Treatment
regrowth periode1
Outcome
GDMY yieldse1
Direction
increasede1
Qualifier
consistently (P<.05)e1

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

Urochloa brizantha
Urochloa brizantha · Taxonhttp://www.hear.org/starr/imageusepolicy.htm This file is licensed under the Creative Commons Attribution 3.0 Unported license. Attribution: Forest & Kim Starr · CC BY 3.0 · Wikimedia Commons ↗

Verbatim

e1

“GDMY yields and regrowth, leaf blade length, and leaf lifespan rate increased consistently (P<.05) with regrowth period”

✓ located verbatim in the source · abstract, characters 327–446 · show in text ↑
e4

“Brachiaria brizantha cv. Piatã”

✓ located verbatim in the source · abstract, characters 198–228 · show in text ↑
Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Leaf blade length and leaf lifespan rate increased with regrowth period.

Taxon
Brachiaria brizanthaUrochloa brizanthae4
Treatment
regrowth periode1
Outcome
leaf blade length, and leaf lifespan ratee1
Direction
increasede1
Qualifier
consistently (P<.05)e1

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

Urochloa brizantha
Urochloa brizantha · Taxonhttp://www.hear.org/starr/imageusepolicy.htm This file is licensed under the Creative Commons Attribution 3.0 Unported license. Attribution: Forest & Kim Starr · CC BY 3.0 · Wikimedia Commons ↗

Verbatim

e1

“GDMY yields and regrowth, leaf blade length, and leaf lifespan rate increased consistently (P<.05) with regrowth period”

✓ located verbatim in the source · abstract, characters 327–446 · show in text ↑
e4

“Brachiaria brizantha cv. Piatã”

✓ located verbatim in the source · abstract, characters 198–228 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Nitrogen, phosphorus and magnesium contents decreased as regrowth period increased.

Taxon
Brachiaria brizanthaUrochloa brizanthae4
Treatment
regrowth periode2
Outcome
nitrogen, phosphorus, magnesiume2
Direction
decreasede2

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

Urochloa brizantha
Urochloa brizantha · Taxonhttp://www.hear.org/starr/imageusepolicy.htm This file is licensed under the Creative Commons Attribution 3.0 Unported license. Attribution: Forest & Kim Starr · CC BY 3.0 · Wikimedia Commons ↗

Verbatim

e2

“however the nitrogen, phosphorus, magnesium and potassium contents decreased as regrowth period, while calcium contents were not affected by regrowth period”

✓ located verbatim in the source · abstract, characters 448–604 · show in text ↑
e4

“Brachiaria brizantha cv. Piatã”

✓ located verbatim in the source · abstract, characters 198–228 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Potassium contents decreased as regrowth period increased.

Taxon
Brachiaria brizanthaUrochloa brizanthae4
Treatment
regrowth periode2
Outcome
potassium contentse2
Direction
decreasede2

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

Urochloa brizantha
Urochloa brizantha · Taxonhttp://www.hear.org/starr/imageusepolicy.htm This file is licensed under the Creative Commons Attribution 3.0 Unported license. Attribution: Forest & Kim Starr · CC BY 3.0 · Wikimedia Commons ↗

Verbatim

e2

“however the nitrogen, phosphorus, magnesium and potassium contents decreased as regrowth period, while calcium contents were not affected by regrowth period”

✓ located verbatim in the source · abstract, characters 448–604 · show in text ↑
e4

“Brachiaria brizantha cv. Piatã”

✓ located verbatim in the source · abstract, characters 198–228 · show in text ↑
Associationobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Calcium contents were not affected by regrowth period.

Taxon
Brachiaria brizanthaUrochloa brizanthae4
Treatment
regrowth periode2
Outcome
calcium contentse2
Direction
not affectede2

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

Urochloa brizantha
Urochloa brizantha · Taxonhttp://www.hear.org/starr/imageusepolicy.htm This file is licensed under the Creative Commons Attribution 3.0 Unported license. Attribution: Forest & Kim Starr · CC BY 3.0 · Wikimedia Commons ↗

Verbatim

e2

“however the nitrogen, phosphorus, magnesium and potassium contents decreased as regrowth period, while calcium contents were not affected by regrowth period”

✓ located verbatim in the source · abstract, characters 448–604 · show in text ↑
e4

“Brachiaria brizantha cv. Piatã”

✓ located verbatim in the source · abstract, characters 198–228 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Maximum green dry matter yield was obtained at a regrowth period of 38.2 days.

Taxon
Brachiaria brizanthaUrochloa brizanthae4
Treatment
regrowth periodse3
Outcome
Maximum GDMYe3
Direction
Maximume3
Value
38.2e3

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

Urochloa brizantha
Urochloa brizantha · Taxonhttp://www.hear.org/starr/imageusepolicy.htm This file is licensed under the Creative Commons Attribution 3.0 Unported license. Attribution: Forest & Kim Starr · CC BY 3.0 · Wikimedia Commons ↗

Verbatim

e3

“Maximum GDMY, leaf appearance and elongation rate, and leaf blade length were obtained with regrowth periods at 38.2; 41.1; 31.3 and 38.9 days, respectively”

✓ located verbatim in the source · abstract, characters 606–762 · show in text ↑
e4

“Brachiaria brizantha cv. Piatã”

✓ located verbatim in the source · abstract, characters 198–228 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Maximum leaf appearance and elongation rate were obtained with regrowth periods reported respectively with the other maxima.

Taxon
Brachiaria brizanthaUrochloa brizanthae4
Treatment
regrowth periodse3
Outcome
leaf appearance and elongation ratee3
Direction
Maximume3
Qualifier
respectivelye3

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

Urochloa brizantha
Urochloa brizantha · Taxonhttp://www.hear.org/starr/imageusepolicy.htm This file is licensed under the Creative Commons Attribution 3.0 Unported license. Attribution: Forest & Kim Starr · CC BY 3.0 · Wikimedia Commons ↗

Verbatim

e3

“Maximum GDMY, leaf appearance and elongation rate, and leaf blade length were obtained with regrowth periods at 38.2; 41.1; 31.3 and 38.9 days, respectively”

✓ located verbatim in the source · abstract, characters 606–762 · show in text ↑
e4

“Brachiaria brizantha cv. Piatã”

✓ located verbatim in the source · abstract, characters 198–228 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Maximum leaf blade length was obtained with a regrowth period of 31.3 or 38.9 days, reported respectively with the other maxima.

Taxon
Brachiaria brizanthaUrochloa brizanthae4
Treatment
regrowth periodse3
Outcome
leaf blade lengthe3
Direction
Maximume3
Qualifier
respectivelye3

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

Urochloa brizantha
Urochloa brizantha · Taxonhttp://www.hear.org/starr/imageusepolicy.htm This file is licensed under the Creative Commons Attribution 3.0 Unported license. Attribution: Forest & Kim Starr · CC BY 3.0 · Wikimedia Commons ↗

Verbatim

e3

“Maximum GDMY, leaf appearance and elongation rate, and leaf blade length were obtained with regrowth periods at 38.2; 41.1; 31.3 and 38.9 days, respectively”

✓ located verbatim in the source · abstract, characters 606–762 · show in text ↑
e4

“Brachiaria brizantha cv. Piatã”

✓ located verbatim in the source · abstract, characters 198–228 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

Cutting at 35 to 42 regrowth days is optimal for maximum yields and regrowth of rich forage and pasture persistence.

Taxon
Brachiaria brizanthaUrochloa brizanthae4
Outcome
cutting at 35 to 42 regrowth dayse5

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

Urochloa brizantha
Urochloa brizantha · Taxonhttp://www.hear.org/starr/imageusepolicy.htm This file is licensed under the Creative Commons Attribution 3.0 Unported license. Attribution: Forest & Kim Starr · CC BY 3.0 · Wikimedia Commons ↗

Verbatim

e4

“Brachiaria brizantha cv. Piatã”

✓ located verbatim in the source · abstract, characters 198–228 · show in text ↑
e5

“cutting at 35 to 42 regrowth days were optimal for obtain maximum yields and regrowth of rich forage and pasture persistence”

✓ located verbatim in the source · abstract, characters 788–912 · show in text ↑