Abstract
It was studied the effects of shading (0, 36 and 54%) and of four nitrogen doses (0, 50, 100 and 150 mg N/dm³ of soil) on the morphogenetic traits and on the tillering of grasses of Brachiaria genus (B. decumbens, B. ruziziensis and B. brizantha cv. Marandu and cv. Xaraes), cultivated in pots with 5 kg substrate. It was used a complete random design, in a 3 × 4 × 4 factorial scheme with three replications. Nitrogen promoted increase in leaf appearance rate and in average leaf blade length, whereas shading increased stem elongation rate. Leaf elongation rate and tillering varied with the interaction among shading percentages and nitrogen doses. Shading increased response efficiency of leaf elongation rate to nitrogen doses, but reduced for tillering, evidencing priority existing tillering growth in detriment to appearance of new tillers when there is light restriction for the plants. Phenotypic adjustments, in response to light reduction, indicate that the studied grasses present tolerance to moderate shading.
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Claims 8
Claim · model-written summary
Nitrogen increased leaf appearance rate.
- Taxon
- Brachiaria
Brachiariat0 - Treatment
- Nitrogene0
- Outcome
- leaf appearance ratee0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen promoted increase in leaf appearance rate and in average leaf blade length”
t0“Brachiaria”
Claim · model-written summary
Nitrogen increased average leaf blade length.
- Taxon
- BrachiariaBrachiariat0
- Treatment
- Nitrogene0
- Outcome
- average leaf blade lengthe0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen promoted increase in leaf appearance rate and in average leaf blade length”
t0“Brachiaria”
Claim · model-written summary
Shading increased stem elongation rate.
- Taxon
- BrachiariaBrachiariat0
- Treatment
- shadinge0
- Outcome
- stem elongation ratee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“shading increased stem elongation rate”
t0“Brachiaria”
Claim · model-written summary
Leaf elongation rate varied with shade by nitrogen interaction.
- Taxon
- BrachiariaBrachiariat0
- Treatment
- interaction among shading percentages and nitrogen dosese0
- Outcome
- Leaf elongation ratee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaf elongation rate and tillering varied with the interaction among shading percentages and nitrogen doses”
t0“Brachiaria”
Claim · model-written summary
Tillering varied with shade by nitrogen interaction.
- Taxon
- BrachiariaBrachiariat0
- Treatment
- interaction among shading percentages and nitrogen dosese0
- Outcome
- tilleringe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaf elongation rate and tillering varied with the interaction among shading percentages and nitrogen doses”
t0“Brachiaria”
Claim · model-written summary
Shade increased nitrogen response efficiency of leaf elongation.
- Taxon
- BrachiariaBrachiariat0
- Treatment
- Shadinge0
- Outcome
- response efficiency of leaf elongation rate to nitrogen dosese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Shading increased response efficiency of leaf elongation rate to nitrogen doses”
t0“Brachiaria”
Claim · model-written summary
Shade reduced nitrogen response efficiency of tillering.
- Taxon
- BrachiariaBrachiariat0
- Treatment
- Shadinge0
- Outcome
- tilleringe0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Shading increased response efficiency of leaf elongation rate to nitrogen doses, but reduced for tillering”
t0“Brachiaria”
Claim · model-written summary
The grasses showed tolerance to moderate shading.
- Taxon
- BrachiariaBrachiariat0
- Outcome
- tolerance to moderate shadinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the studied grasses present tolerance to moderate shading”
t0“Brachiaria”
The same questions in other papers
shade · growth · BrachiariaPositive and negative results
1 in the opposite direction
- negative
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.