Abstract
In this study we hypothesized that the effect of nitrogen form well as light intensity on Ca content in the sweet pepper fruit may depend on stage of fruit maturity. Thus the effect of nitrogen form (100% N-NO3 or 50% N-NO3 + 13% N-NH4 + 37% N-NH2), type of polyethylene film covering the tunnel (two types of film, Ginegar or Gemme 4S, characterized by various PAR transmissions) and stage of fruit maturity on Ca and dry matter content in sweet pepper fruits were determined. Sweet pepper plants were cultivated in rockwool slabs. The chemical analyses were performed on sweet peppers harvested in five stages of growth and ripening, beginning with fruits of 2–4 cm diameter. Plants supplied with nutrient solution containing nitrate N form accumulated more Ca. The influence of film type covering the tunnel was unsystematic. Irrespective of N form and film type the contents of Ca and dry matter varied depending on fruit growth and ripening stages. Systematic increase in Ca accumulation occurred until reaching the stage of mature-green sweet peppers, while during further ripening the level of Ca decreased. The dynamics of dry matter accumulation were opposite to that of Ca. Additional determination of Ca was performed in mature green fruits, coming from nitrate N and Gemme 4S film (transmitted more light) treatment, both normal and with visible symptoms of blossom-end rot (BER). The analysis was conducted separately in the upper and lower part of fruits. Higher amount of Ca was found in the upper part in normal and BER fruits. Since BER was developed in fruits with Ca content in the lower part equaled to 0.60 mg·g-1 d.m., but in 2007 no symptoms of BER were noted in fruits contained only 0.38 mg·g-1 of Ca, other co-factors, not only low Ca level in fruit, should be considered in the prediction of BER.
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 12
Claim · model-written summary
Nitrate nitrogen increased calcium accumulation in sweet pepper plants.
- Taxon
- sweet pepper
Capsicum annuumt0 - Treatment
- nutrient solution containing nitrate N forme0
- Outcome
- Cae0
- Direction
- moree0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plants supplied with nutrient solution containing nitrate N form accumulated more Ca.”
t0“sweet pepper”
Claim · model-written summary
Film type had an unsystematic effect on measured pepper fruit contents.
- Taxon
- sweet pepperCapsicum annuumt0
- Treatment
- film type covering the tunnele0
- Outcome
- influencee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The influence of film type covering the tunnel was unsystematic.”
t0“sweet pepper”
Claim · model-written summary
Sweet pepper fruit calcium content varied with growth and ripening stage.
- Taxon
- sweet pepperCapsicum annuumt0
- Organ / stage
- fruit growth and ripening stagese0
- Outcome
- contents of Cae0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irrespective of N form and film type the contents of Ca and dry matter varied depending on fruit growth and ripening stages.”
t0“sweet pepper”
Claim · model-written summary
Sweet pepper fruit dry matter varied with growth and ripening stage.
- Taxon
- sweet pepperCapsicum annuumt0
- Organ / stage
- fruit growth and ripening stagese0
- Outcome
- dry mattere0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irrespective of N form and film type the contents of Ca and dry matter varied depending on fruit growth and ripening stages.”
t0“sweet pepper”
Claim · model-written summary
Calcium accumulation increased until sweet peppers reached mature green stage.
- Taxon
- sweet peppersCapsicum annuume0
- Organ / stage
- mature-greene0
- Outcome
- Ca accumulatione0
- Direction
- increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Systematic increase in Ca accumulation occurred until reaching the stage of mature-green sweet peppers”
Claim · model-written summary
Calcium level decreased during further pepper ripening.
- Taxon
- sweet pepperCapsicum annuumt0
- Organ / stage
- further ripeninge0
- Outcome
- level of Cae0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“while during further ripening the level of Ca decreased.”
t0“sweet pepper”
Claim · model-written summary
Dry matter accumulation followed the opposite pattern to calcium accumulation.
- Taxon
- sweet pepperCapsicum annuumt0
- Outcome
- dry matter accumulatione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The dynamics of dry matter accumulation were opposite to that of Ca.”
t0“sweet pepper”
Claim · model-written summary
The upper part had more calcium than the lower part in normal fruit.
- Taxon
- sweet pepperCapsicum annuumt0
- Material
- normale0
- Organ / stage
- upper parte0
- Outcome
- amount of Cae0
- Direction
- Highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Higher amount of Ca was found in the upper part in normal and BER fruits.”
t0“sweet pepper”
Claim · model-written summary
The upper part had more calcium than the lower part in blossom-end-rot fruit.
- Taxon
- sweet pepperCapsicum annuumt0
- Material
- BER fruitse0
- Organ / stage
- upper parte0
- Outcome
- amount of Cae0
- Direction
- Highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Higher amount of Ca was found in the upper part in normal and BER fruits.”
t0“sweet pepper”
Claim · model-written summary
Blossom-end rot developed in fruit with 0.60 mg·g-1 d.m. calcium in the lower part.
- Taxon
- sweet pepperCapsicum annuumt0
- Organ / stage
- lower parte0
- Outcome
- BER was developede0
- Value
- 0.60 mg·g-1 d.m.e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“BER was developed in fruits with Ca content in the lower part equaled to 0.60 mg·g-1 d.m.”
t0“sweet pepper”
Claim · model-written summary
In 2007 no blossom-end rot symptoms were noted in fruit with only 0.38 mg·g-1 calcium.
- Taxon
- sweet pepperCapsicum annuumt0
- Outcome
- no symptoms of BERe0
- Value
- 0.38 mg·g-1e0
- Setting
- 2007e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in 2007 no symptoms of BER were noted in fruits contained only 0.38 mg·g-1 of Ca”
t0“sweet pepper”
Claim · model-written summary
The authors recommended considering factors besides low fruit calcium to predict blossom-end rot.
- Taxon
- sweet pepperCapsicum annuumt0
- Outcome
- other co-factors, not only low Ca level in fruit, should be considered in the prediction of BERe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“other co-factors, not only low Ca level in fruit, should be considered in the prediction of BER.”
t0“sweet pepper”
The same questions in other papers
nitrogen · nutrient: content · Capsicum annuum (sweet pepper)Positive and negative results
9 papers in the same direction as this paper · 2 in the opposite direction
- positive
- negative
- negative
8 papers more in this group
See all 12 papers →fertilization · nutrient: content · Capsicum annuum (sweet pepper)Positive and negative results
31 papers in the same direction as this paper · 4 in the opposite direction
- negative
- no effect
- negative
32 papers more in this group
See all 36 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.