Abstract
Under growth chamber conditions, the influence of soil moisture, soil pH, and liming sources on the germination, yield and infection of cabbage by Plasmodiophora brassicae Wor. was studied in artificially infested mineral and organic soils. Clubroot infection occurred at moisture levels as low as 9 and 60% in the mineral and organic soils, respectively. The growth of cabbage and the reduction of the incidence of clubroot were more dependent on liming source than on soil pH. Soil pH adjustment to effect complete clubroot control was invariably deleterious to cabbage growth. It was established for the organic soil that the effect of calcium hydroxide was important in correcting soil acidity as well as supplying calcium as an essential plant nutrient for cabbage. In addition, there was evidence that correction of the soil acidity favored clubroot development, but simultaneously the Ca ion had an inhibitory effect on the disease organism. On the mineral soil, Mg sources producing a soil pH not normally considered deleterious to plants affected the germination and ultimate yield of cabbage.
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Claims 7
Claim · model-written summary
Clubroot occurred at 9% moisture in mineral soil and 60% in organic soil.
- Taxon
- cabbage
Brassica oleracea var. capitatat0 - Interactor
- Plasmodiophora brassicae Wor.
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Plasmodiophora brassicaet1pathogen - Outcome
- Clubroot infectione0
- Value
- 9 and 60%e0
- Setting
- mineral and organic soilse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Clubroot infection occurred at moisture levels as low as 9 and 60% in the mineral and organic soils, respectively.”
t0“GERMINATION AND GROWTH OF CABBAGE”
t1“cabbage by Plasmodiophora brassicae Wor.”
Claim · model-written summary
Liming source mattered more than pH for cabbage growth and clubroot reduction.
- Taxon
- cabbageBrassica oleracea var. capitatae0
- Treatment
- liming sourcee0
- Outcome
- growth of cabbage and the reduction of the incidence of clubroote0
- Direction
- more dependente0
- Comparator
- soil pHe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The growth of cabbage and the reduction of the incidence of clubroot were more dependent on liming source than on soil pH.”
Claim · model-written summary
Adjusting soil pH for complete clubroot control harmed cabbage growth.
- Taxon
- cabbageBrassica oleracea var. capitatae0
- Treatment
- Soil pH adjustmente0
- Outcome
- cabbage growthe0
- Direction
- deleteriouse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soil pH adjustment to effect complete clubroot control was invariably deleterious to cabbage growth.”
Claim · model-written summary
Calcium hydroxide corrected organic soil acidity and supplied calcium to cabbage.
- Taxon
- cabbageBrassica oleracea var. capitatae0
- Treatment
- calcium hydroxidee0
- Outcome
- correcting soil acidity as well as supplying calciume0
- Setting
- organic soilt0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the effect of calcium hydroxide was important in correcting soil acidity as well as supplying calcium as an essential plant nutrient for cabbage.”
t0“ORGANIC SOILS”
Claim · model-written summary
Acidity correction favored clubroot development.
- Taxon
- cabbageBrassica oleracea var. capitatat0
- Treatment
- correction of the soil aciditye0
- Outcome
- clubroot developmente0
- Direction
- favorede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“correction of the soil acidity favored clubroot development”
t0“CABBAGE”
Claim · model-written summary
Calcium ion inhibited the disease organism.
- Taxon
- cabbageBrassica oleracea var. capitatat0
- Compound
- Ca ione0
- Outcome
- inhibitory effect on the disease organisme0
- Direction
- inhibitorye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the Ca ion had an inhibitory effect on the disease organism.”
t0“CABBAGE”
Claim · model-written summary
Magnesium sources in mineral soil affected cabbage germination and yield.
- Taxon
- cabbageBrassica oleracea var. capitatae0
- Treatment
- Mg sourcese0
- Outcome
- germination and ultimate yield of cabbagee0
- Setting
- mineral soile0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“On the mineral soil, Mg sources producing a soil pH not normally considered deleterious to plants affected the germination and ultimate yield of cabbage.”
The same questions in other papers
ph · growth · Brassica oleracea (wild cabbage)Positive and negative results
2 papers in the same direction as this paper · 3 in the opposite direction
- positive
- positive
- positive
2 papers more in this group
See all 6 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.