Abstract
Water deficit during the dry season is one of the main factors affecting the productivity and quality of pastures. The present work aims at evaluating the effects of water deficit on the morphological and productive characteristics of Urochloa brizantha cultivars grown in Quartzarenic Neosol. The experiment was conducted in a greenhouse under a completely randomized design with a 4×2 factorial arrangement, with four cultivars (Marandu, MG4, MG13 Braúna and MG5 Vitória), two water availability conditions (50% or 100% of field capacity) and six repetitions. Structural, morphogenic and productive variables were evaluated 15, 25 and 35 days after the beginning of treatment application. For all productive characteristics evaluated during 35 days of water stress, it was observed that a 50% reduction in water availability significantly (P<0.05) reduced total fresh and dry mass production and leaf production of Marandu, MG13 Braúna and MG5 Vitória. Except for MG13 Braúna, the leaf/stem ratio of these cultivars was impaired. Regardless of water availability, when comparing forages during 35 days, lower cumulative leaf length and higher fresh and dry mass production of stems were observed in the Marandu cultivar. Regarding the response of productive characteristics, the MG4 cultivar showed the best results under water deficit when grown in Quartzarenic Neosol.
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Claims 9
Claim · model-written summary
A 50% reduction in water availability reduced total fresh and dry mass production and leaf production of Marandu
- Taxon
- Urochloa brizantha
Urochloa brizanthat0 - Material
- Marandue2
- Treatment
- 50% reduction in water availabilitye2
- Outcome
- total fresh and dry mass production and leaf productione2
- Direction
- reducede2
- Comparator
- 100% of field capacitye1
- Setting
- greenhousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Urochloa brizantha”
e0“The experiment was conducted in a greenhouse”
e1“with four cultivars (Marandu, MG4, MG13 Braúna and MG5 Vitória), two water availability conditions (50% or 100% of field capacity)”
e2“a 50% reduction in water availability significantly (P<0.05) reduced total fresh and dry mass production and leaf production of Marandu, MG13 Braúna and MG5 Vitória”
Claim · model-written summary
A 50% reduction in water availability reduced total fresh and dry mass production and leaf production of MG13 Braúna
- Taxon
- Urochloa brizanthaUrochloa brizanthat0
- Material
- MG13 Braúnae2
- Treatment
- 50% reduction in water availabilitye2
- Outcome
- total fresh and dry mass production and leaf productione2
- Direction
- reducede2
- Comparator
- 100% of field capacitye1
- Setting
- greenhousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Urochloa brizantha”
e0“The experiment was conducted in a greenhouse”
e1“with four cultivars (Marandu, MG4, MG13 Braúna and MG5 Vitória), two water availability conditions (50% or 100% of field capacity)”
e2“a 50% reduction in water availability significantly (P<0.05) reduced total fresh and dry mass production and leaf production of Marandu, MG13 Braúna and MG5 Vitória”
Claim · model-written summary
A 50% reduction in water availability reduced total fresh and dry mass production and leaf production of MG5 Vitória
- Taxon
- Urochloa brizanthaUrochloa brizanthat0
- Material
- MG5 Vitóriae2
- Treatment
- 50% reduction in water availabilitye2
- Outcome
- total fresh and dry mass production and leaf productione2
- Direction
- reducede2
- Comparator
- 100% of field capacitye1
- Setting
- greenhousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Urochloa brizantha”
e0“The experiment was conducted in a greenhouse”
e1“with four cultivars (Marandu, MG4, MG13 Braúna and MG5 Vitória), two water availability conditions (50% or 100% of field capacity)”
e2“a 50% reduction in water availability significantly (P<0.05) reduced total fresh and dry mass production and leaf production of Marandu, MG13 Braúna and MG5 Vitória”
Claim · model-written summary
Under water deficit the leaf/stem ratio of Marandu was impaired
- Taxon
- Urochloa brizanthaUrochloa brizanthat0
- Material
- Marandue1
- Treatment
- 50% reduction in water availabilitye2
- Outcome
- leaf/stem ratioe3
- Direction
- impairede3
- Comparator
- 100% of field capacitye1
- Setting
- greenhousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Urochloa brizantha”
e0“The experiment was conducted in a greenhouse”
e1“with four cultivars (Marandu, MG4, MG13 Braúna and MG5 Vitória), two water availability conditions (50% or 100% of field capacity)”
e2“a 50% reduction in water availability significantly (P<0.05) reduced total fresh and dry mass production and leaf production of Marandu, MG13 Braúna and MG5 Vitória”
e3“Except for MG13 Braúna, the leaf/stem ratio of these cultivars was impaired”
Claim · model-written summary
Under water deficit the leaf/stem ratio of MG5 Vitória was impaired
- Taxon
- Urochloa brizanthaUrochloa brizanthat0
- Material
- MG5 Vitóriae1
- Treatment
- 50% reduction in water availabilitye2
- Outcome
- leaf/stem ratioe3
- Direction
- impairede3
- Comparator
- 100% of field capacitye1
- Setting
- greenhousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Urochloa brizantha”
e0“The experiment was conducted in a greenhouse”
e1“with four cultivars (Marandu, MG4, MG13 Braúna and MG5 Vitória), two water availability conditions (50% or 100% of field capacity)”
e2“a 50% reduction in water availability significantly (P<0.05) reduced total fresh and dry mass production and leaf production of Marandu, MG13 Braúna and MG5 Vitória”
e3“Except for MG13 Braúna, the leaf/stem ratio of these cultivars was impaired”
Claim · model-written summary
Under water deficit the leaf/stem ratio of MG13 Braúna was not impaired
- Taxon
- Urochloa brizanthaUrochloa brizanthat0
- Material
- MG13 Braúnae3
- Treatment
- 50% reduction in water availabilitye2
- Outcome
- leaf/stem ratioe3
- Setting
- greenhousee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Urochloa brizantha”
e0“The experiment was conducted in a greenhouse”
e1“with four cultivars (Marandu, MG4, MG13 Braúna and MG5 Vitória), two water availability conditions (50% or 100% of field capacity)”
e2“a 50% reduction in water availability significantly (P<0.05) reduced total fresh and dry mass production and leaf production of Marandu, MG13 Braúna and MG5 Vitória”
e3“Except for MG13 Braúna, the leaf/stem ratio of these cultivars was impaired”
Claim · model-written summary
Marandu had lower cumulative leaf length than the other forages over 35 days regardless of water availability
- Taxon
- Urochloa brizanthaUrochloa brizanthat0
- Material
- Marandue4
- Treatment
- water availabilitye4
- Outcome
- cumulative leaf lengthe4
- Direction
- lowere4
- Comparator
- foragese4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Urochloa brizantha”
e4“Regardless of water availability, when comparing forages during 35 days, lower cumulative leaf length and higher fresh and dry mass production of stems were observed in the Marandu cultivar”
Claim · model-written summary
Marandu had higher fresh and dry mass production of stems than the other forages over 35 days regardless of water availability
- Taxon
- Urochloa brizanthaUrochloa brizanthat0
- Material
- Marandue4
- Treatment
- water availabilitye4
- Outcome
- fresh and dry mass production of stemse4
- Direction
- highere4
- Comparator
- foragese4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Urochloa brizantha”
e4“Regardless of water availability, when comparing forages during 35 days, lower cumulative leaf length and higher fresh and dry mass production of stems were observed in the Marandu cultivar”
Claim · model-written summary
MG4 gave the best productive results under water deficit when grown in Quartzarenic Neosol
- Taxon
- Urochloa brizanthaUrochloa brizanthat0
- Material
- MG4e5
- Treatment
- water deficite5
- Outcome
- productive characteristicse5
- Direction
- best resultse5
- Setting
- Quartzarenic Neosole5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Urochloa brizantha”
e5“Regarding the response of productive characteristics, the MG4 cultivar showed the best results under water deficit when grown in Quartzarenic Neosol”
The same questions in other papers
soil water · growth · Urochloa brizantha (palisade grass)Positive and negative results
1 in the opposite direction
- positive
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.