Abstract
Abstract Upland cotton ( Gossypium hirsutum L.) plants were grown in nutrient solution under greenhouse conditions to study manganese × boron interaction on cotton growth and development. A 2 × II factorial experiment included added B at 35 and 500 /ig B/I with eleven Mn rates from O to 4000 μg added Mn/1. The appearance of visible Mn deficiency symptoms preceded growth reduction indicating that growth rate processes are inhibited prior to visible deficiency manifestations. With very low Mn levels, only Mn deficiency symptoms existed at both B levels. As Mn levels increased slightly under low B, both B and Mn deficiency symptoms were simultaneously present, and at higher Mn levels where Mn supply was not limiting, only B deficiency symptoms occurred. Plant growth indicated by top weight was correlated with Mn and B deficiency symptoms. Manganese and B deficiencies retarded internodal growth without adversely influencing nodal development. Both Mn and B deficiencies reduced square development. The node of first fruiting branch was not affected by either B or Mn rates indicating no response to crop earliness.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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 9
Claim · model-written summary
Visible manganese deficiency symptoms preceded growth reduction.
- Taxon
- Cotton
Gossypium hirsutumt0 - Outcome
- visible Mn deficiency symptoms preceded growth reductione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The appearance of visible Mn deficiency symptoms preceded growth reduction”
t0“Cotton”
Claim · model-written summary
Very low manganese produced only manganese deficiency symptoms at both boron levels.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- very low Mn levelse0
- Outcome
- Mn deficiency symptomse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With very low Mn levels, only Mn deficiency symptoms existed at both B levels.”
t0“Cotton”
Claim · model-written summary
Slightly increased manganese under low boron produced simultaneous boron and manganese deficiency symptoms.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- Mn levels increased slightly under low Be0
- Outcome
- both B and Mn deficiency symptoms were simultaneously presente0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“As Mn levels increased slightly under low B, both B and Mn deficiency symptoms were simultaneously present”
t0“Cotton”
Claim · model-written summary
At higher nonlimiting manganese levels only boron deficiency symptoms occurred.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- higher Mn levelse0
- Outcome
- only B deficiency symptoms occurrede0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“at higher Mn levels where Mn supply was not limiting, only B deficiency symptoms occurred”
t0“Cotton”
Claim · model-written summary
Top weight correlated with manganese and boron deficiency symptoms.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- Mn and B deficiency symptomse0
- Outcome
- top weighte0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plant growth indicated by top weight was correlated with Mn and B deficiency symptoms.”
t0“Cotton”
Claim · model-written summary
Manganese and boron deficiencies retarded internodal growth.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- Manganese and B deficienciese0
- Outcome
- internodal growthe0
- Direction
- retardede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Manganese and B deficiencies retarded internodal growth without adversely influencing nodal development.”
t0“Cotton”
Claim · model-written summary
Manganese and boron deficiencies did not adversely influence nodal development.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- Manganese and B deficienciese0
- Outcome
- nodal developmente0
- Direction
- without adversely influencinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Manganese and B deficiencies retarded internodal growth without adversely influencing nodal development.”
t0“Cotton”
Claim · model-written summary
Manganese and boron deficiencies reduced square development.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- Mn and B deficienciese0
- Outcome
- square developmente0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both Mn and B deficiencies reduced square development.”
t0“Cotton”
Claim · model-written summary
Boron and manganese rates did not affect the node of the first fruiting branch.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- B or Mn ratese0
- Outcome
- node of first fruiting branche0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The node of first fruiting branch was not affected by either B or Mn rates”
t0“Cotton”
The same questions in other papers
boron atom · growth · Gossypium hirsutum (cotton)Results differ
19 papers in the same direction as this paper · 2 in the opposite direction
This paper is about lacking the nutrient, so it counts the other way round here.
- positive
- no effect
- negative
18 papers more in this group
See all 22 papers →manganese atom · phenology · Gossypium hirsutum (cotton)Positive and negative results
1 in the opposite direction
- positive
manganese atom · growth · Gossypium hirsutum (cotton)Positive and negative results
4 in the opposite direction
- positive
- positive
- positive
1 paper more in this group
See all 5 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.