Abstract
Sugar beet and spinach beet were grown in sand culture with different sources of nitrogen or iron and different levels of molybdenum and heavy metals. Chlorophyll and some magnesium fractions were determined. Extra molybdenum accentuated chlorosis caused by excess of Mn++, Cr+++, Zn++, and Cu++ and decreased it in the presence of CrO4−− with nitrate. In the presence of these ions urea reduced chlorophyll in young and increased it in old leaves of sugar beet. Effects of urea and molybdenum were additive and independent. Ammonium sulphate caused increased chlorosis of spinach beet with Mn++ and Zn++. The existence of an acetone-soluble magnesium fraction other than chlorophyll was shown. Excess Cu++ and Zn++ decreased total magnesium; Mn++ did not. Mn++ and Zn++ reduced chlorophyll, increased the non-chlorophyll acetone-soluble magnesium, but reduced other fractions. Ferrous iron ipcreased total magnesium content and also increased the acetone-soluble fractions in the presence of Mn++ and Zn++. Extra molybdenum decreased the acetone-soluble magnesium fractions but did not affect the total magnesium content. Significant interactions between Mo, N, Fe, and heavy metals were also disclosed.
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Claims 17
Claim · model-written summary
Extra molybdenum accentuated chlorosis from excess Mn++, Cr+++, Zn++ and Cu++.
- Taxon
- Sugar beet and spinach beete0
- Treatment
- Extra molybdenume1
- Outcome
- chlorosise1
- Direction
- accentuatede1
- Qualifier
- excess of Mn++, Cr+++, Zn++, and Cu++e1
Not reportedComparator
Verbatim
e0“Sugar beet and spinach beet were grown in sand culture”
e1“Extra molybdenum accentuated chlorosis caused by excess of Mn++, Cr+++, Zn++, and Cu++”
Claim · model-written summary
Extra molybdenum decreased chlorosis with CrO4−− and nitrate.
- Taxon
- Sugar beet and spinach beete0
- Treatment
- Extra molybdenume2
- Outcome
- chlorosise2
- Direction
- decreasede1
- Qualifier
- CrO4−− with nitratee1
Not reportedComparator
Verbatim
e0“Sugar beet and spinach beet were grown in sand culture”
e1“decreased it in the presence of CrO4−− with nitrate”
e2“Extra molybdenum accentuated chlorosis”
Claim · model-written summary
Urea reduced chlorophyll in young sugar beet leaves in the presence of the ions.
- Taxon
- sugar beet
Beta vulgaris subsp. vulgarise0 - Organ / stage
- younge0
- Treatment
- ureae0
- Outcome
- chlorophylle0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the presence of these ions urea reduced chlorophyll in young and increased it in old leaves of sugar beet”
Claim · model-written summary
Urea increased chlorophyll in old sugar beet leaves in the presence of the ions.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarise0
- Organ / stage
- old leavese0
- Treatment
- ureae0
- Outcome
- chlorophylle0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the presence of these ions urea reduced chlorophyll in young and increased it in old leaves of sugar beet”
Claim · model-written summary
The effects of urea and molybdenum were additive and independent.
Verbatim
e0“Sugar beet and spinach beet were grown in sand culture”
e1“Effects of urea and molybdenum were additive and independent”
Claim · model-written summary
Ammonium sulphate increased chlorosis of spinach beet with Mn++ and Zn++.
- Taxon
- spinach beete0
- Treatment
- Ammonium sulphatee0
- Outcome
- chlorosise0
- Direction
- increasede0
- Qualifier
- Mn++ and Zn++e0
Not reportedComparator
Verbatim
e0“Ammonium sulphate caused increased chlorosis of spinach beet with Mn++ and Zn++”
Claim · model-written summary
An acetone-soluble magnesium fraction other than chlorophyll was present.
Verbatim
e0“Sugar beet and spinach beet were grown in sand culture”
e1“The existence of an acetone-soluble magnesium fraction other than chlorophyll was shown”
Claim · model-written summary
Excess Cu++ and Zn++ decreased total magnesium.
- Taxon
- Sugar beet and spinach beete0
- Treatment
- Excess Cu++ and Zn++e1
- Outcome
- total magnesiume1
- Direction
- decreasede1
Not reportedComparator
Verbatim
e0“Sugar beet and spinach beet were grown in sand culture”
e1“Excess Cu++ and Zn++ decreased total magnesium”
Claim · model-written summary
Mn++ did not decrease total magnesium.
Not reportedComparator
Verbatim
e0“Sugar beet and spinach beet were grown in sand culture”
e1“Mn++ did not”
e2“Excess Cu++ and Zn++ decreased total magnesium”
Claim · model-written summary
Mn++ and Zn++ reduced chlorophyll.
Not reportedComparator
Verbatim
e0“Sugar beet and spinach beet were grown in sand culture”
e1“Mn++ and Zn++ reduced chlorophyll”
Claim · model-written summary
Mn++ and Zn++ increased non-chlorophyll acetone-soluble magnesium.
- Taxon
- Sugar beet and spinach beete0
- Treatment
- Mn++ and Zn++e1
- Outcome
- non-chlorophyll acetone-soluble magnesiume1
- Direction
- increasede1
Not reportedComparator
Verbatim
e0“Sugar beet and spinach beet were grown in sand culture”
e1“Mn++ and Zn++ reduced chlorophyll, increased the non-chlorophyll acetone-soluble magnesium”
Claim · model-written summary
Mn++ and Zn++ reduced other magnesium fractions.
- Taxon
- Sugar beet and spinach beete0
- Treatment
- Mn++ and Zn++e1
- Outcome
- other fractionse1
- Direction
- reducede1
Not reportedComparator
Verbatim
e0“Sugar beet and spinach beet were grown in sand culture”
e1“Mn++ and Zn++ reduced chlorophyll, increased the non-chlorophyll acetone-soluble magnesium, but reduced other fractions”
Claim · model-written summary
Ferrous iron increased total magnesium content.
- Taxon
- Sugar beet and spinach beete0
- Treatment
- Ferrous irone1
- Outcome
- total magnesium contente1
- Direction
- ipcreasede1
Not reportedComparator
Verbatim
e0“Sugar beet and spinach beet were grown in sand culture”
e1“Ferrous iron ipcreased total magnesium content”
Claim · model-written summary
Ferrous iron increased acetone-soluble fractions in the presence of Mn++ and Zn++.
- Taxon
- Sugar beet and spinach beete0
- Treatment
- Ferrous irone1
- Outcome
- acetone-soluble fractionse1
- Direction
- increasede1
- Qualifier
- in the presence of Mn++ and Zn++e1
Not reportedComparator
Verbatim
e0“Sugar beet and spinach beet were grown in sand culture”
e1“Ferrous iron ipcreased total magnesium content and also increased the acetone-soluble fractions in the presence of Mn++ and Zn++”
Claim · model-written summary
Extra molybdenum decreased acetone-soluble magnesium fractions.
- Taxon
- Sugar beet and spinach beete0
- Treatment
- Extra molybdenume1
- Outcome
- acetone-soluble magnesium fractionse1
- Direction
- decreasede1
Not reportedComparator
Verbatim
e0“Sugar beet and spinach beet were grown in sand culture”
e1“Extra molybdenum decreased the acetone-soluble magnesium fractions”
Claim · model-written summary
Extra molybdenum did not affect total magnesium content.
- Taxon
- Sugar beet and spinach beete0
- Treatment
- Extra molybdenume1
- Outcome
- total magnesium contente1
- Direction
- did not affecte1
Not reportedComparator
Verbatim
e0“Sugar beet and spinach beet were grown in sand culture”
e1“Extra molybdenum decreased the acetone-soluble magnesium fractions but did not affect the total magnesium content”
Claim · model-written summary
Significant interactions were observed among Mo, N, Fe and heavy metals.
Verbatim
e0“Sugar beet and spinach beet were grown in sand culture”
e1“Significant interactions between Mo, N, Fe, and heavy metals were also disclosed”
The same questions in other papers
nitrogen · physiology: pigments · Beta vulgaris (beet)Results agree
7 papers in the same direction as this paper
- positive
- positive
- positive
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See all 8 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.