Abstract
Abstract: The objective of this work was to evaluate the potential of solute translocation among stems of wheat (Triticum aestivum), by the application of the systemic herbicides clethodim and glyphosate. The experiments were carried out in greenhouse conditions, using wheat cultivars with contrasting potential for tillering, during the winter of 2017 and 2018 in Southern Brazil. Clethodim was applied on isolated stems, to evaluate the potential translocation of solutes from the first three tillers. Translocation was evaluated by the yield parameters on stem ears not treated with clethodim. Glyphosate was used to evaluate the potential translocation of solutes from late tillers. Translocation was evaluated by the assimilation of carbon in stems without the glyphosate treatment. When applied on isolated primary tillers, clethodim reduced yield parameters only in treated stems, which shows that the assimilates were targeting the main sink, in detriment of the other organs. There was a decrease in net carbon assimilation in stems without the glyphosate treatment at the first visible node stage. Glyphosate applied on late tillers, at anthesis, reduced even more net carbon assimilation in nontreated stems of the primary tillers of the BRS Parrudo wheat cultivar (low tillering). Well-developed late tillers show higher potential of solute translocation to the whole plant than the poor-developed ones.
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Claims 5
Claim · model-written summary
Clethodim applied to isolated primary tillers reduced yield parameters only in treated wheat stems.
- Taxon
- wheat
Triticum aestivumt0 - Treatment
- clethodime0
- Outcome
- yield parameterse0
- Direction
- reducede0
- Qualifier
- only in treated stemse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When applied on isolated primary tillers, clethodim reduced yield parameters only in treated stems”
t0“wheat”
Claim · model-written summary
The clethodim response indicates assimilates targeted the main sink at the expense of other organs.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- assimilates were targeting the main sinke0
- Qualifier
- in detriment of the other organse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“which shows that the assimilates were targeting the main sink, in detriment of the other organs.”
t0“wheat”
Claim · model-written summary
Net carbon assimilation decreased in wheat stems without glyphosate treatment at the first visible node stage.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- first visible node stagee0
- Treatment
- Glyphosatee1
- Outcome
- net carbon assimilatione0
- Direction
- decreasee0
- Qualifier
- stems without the glyphosate treatmente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was a decrease in net carbon assimilation in stems without the glyphosate treatment at the first visible node stage.”
e1“Glyphosate was used to evaluate the potential translocation of solutes from late tillers.”
t0“wheat”
Claim · model-written summary
Glyphosate on late tillers at anthesis further reduced net carbon assimilation in untreated primary tillers of low-tillering BRS Parrudo wheat.
- Taxon
- wheatTriticum aestivume0
- Material
- BRS Parrudoe0
- Organ / stage
- anthesise0
- Treatment
- Glyphosate applied on late tillerse0
- Outcome
- net carbon assimilatione0
- Direction
- reduced even moree0
- Qualifier
- nontreated stems of the primary tillerse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Glyphosate applied on late tillers, at anthesis, reduced even more net carbon assimilation in nontreated stems of the primary tillers of the BRS Parrudo wheat cultivar (low tillering).”
Claim · model-written summary
Well-developed wheat late tillers have higher whole-plant solute translocation potential than poorly developed tillers.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- Well-developed late tillerse0
- Outcome
- potential of solute translocatione0
- Direction
- highere0
- Comparator
- poor-developed onese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Well-developed late tillers show higher potential of solute translocation to the whole plant than the poor-developed ones.”
t0“wheat”
The same questions in other papers
glyphosate · physiology: photosynthesis · Triticum aestivum (wheat)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- positive
- negative
clethodim · yield · Triticum aestivum (wheat)Results agree
1 paper in the same direction as this paper
- negative
tillage · physiology: photosynthesis · Triticum aestivum (wheat)Positive and negative results
4 papers in the same direction as this paper · 23 in the opposite direction
- positive
- positive
- positive
24 papers more in this group
See all 28 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.