Abstract
Elemental deficiencies of N, P, K, Ca, Mg, S, Fe, Mn, Cu, Zn, and B were induced in `Osaka White' ornamental cabbage ( Brassica oleracea var. acephala L.) plants. Seedlings were planted in 4.7-L plastic containers and fertilized with a complete modified Hoagland's solution or this solution minus the element that was to be investigated. Plants were harvested for tissue analysis as well as dry weight when initial foliar symptoms were expressed and later under advanced deficiency symptoms. Root architecture was also recorded for the plants treated with the solutions. The containers were replicated three times for each of the two harvests and were randomized in a complete-block design. Deficiency symptoms for all treatments were observed within five weeks. The most dramatic expression of foliar symptoms occurred with N (a purplish tinge on underside of lower foliage leading to necrotic margins on the mature leaves), P (elongated internodes and a purplish tinge on underside of mature leaves), K (compact internodes with chlorotic lower foliage leading to necrotic patches on the leaf margins and blade), Fe (bright yellow upper foliage leading to a bleach white appearance), Ca (complete meristem necrosis with lower foliage becoming chlorotic then necrotic), and B (deformed young leaves and fully expanded leaves becoming thick, leathery, and brittle). The dry weight of plants treated with solutions not containing N, P, Ca, Fe, or B was significantly lower when compared to the control. Foliar tissue concentration data will assist plant tissue analysis laboratories in establishing foliar symptom standards for grower samples.
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Claims 12
Claim · model-written summary
Symptoms appeared in all nutrient deficiency treatments within five weeks.
- Taxon
- Cabbage
Brassica oleracea var. capitatat0 - Treatment
- all treatmentse0
- Outcome
- Deficiency symptomse0
- Qualifier
- within five weekse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Deficiency symptoms for all treatments were observed within five weeks”
t0“Ornamental Cabbage Plants”
Claim · model-written summary
Nitrogen deficiency caused purple lower foliage progressing to necrotic mature-leaf margins.
- Taxon
- CabbageBrassica oleracea var. capitatat0
- Organ / stage
- lower foliagee0
- Treatment
- Ne0
- Outcome
- a purplish tinge on underside of lower foliage leading to necrotic margins on the mature leavese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N (a purplish tinge on underside of lower foliage leading to necrotic margins on the mature leaves)”
t0“Ornamental Cabbage Plants”
Claim · model-written summary
Phosphorus deficiency produced elongated internodes and purple mature-leaf undersides.
- Taxon
- CabbageBrassica oleracea var. capitatat0
- Treatment
- Pe0
- Outcome
- elongated internodes and a purplish tinge on underside of mature leavese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“P (elongated internodes and a purplish tinge on underside of mature leaves)”
t0“Ornamental Cabbage Plants”
Claim · model-written summary
Potassium deficiency produced compact internodes and chlorotic lower foliage progressing to necrotic leaf patches.
- Taxon
- CabbageBrassica oleracea var. capitatat0
- Treatment
- Ke0
- Outcome
- compact internodes with chlorotic lower foliage leading to necrotic patches on the leaf margins and bladee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“K (compact internodes with chlorotic lower foliage leading to necrotic patches on the leaf margins and blade)”
t0“Ornamental Cabbage Plants”
Claim · model-written summary
Iron deficiency produced bright yellow upper foliage progressing to bleached white.
- Taxon
- CabbageBrassica oleracea var. capitatat0
- Treatment
- Fee0
- Outcome
- bright yellow upper foliage leading to a bleach white appearancee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fe (bright yellow upper foliage leading to a bleach white appearance)”
t0“Ornamental Cabbage Plants”
Claim · model-written summary
Calcium deficiency caused complete meristem necrosis and lower foliage chlorosis followed by necrosis.
- Taxon
- CabbageBrassica oleracea var. capitatat0
- Treatment
- Cae0
- Outcome
- complete meristem necrosis with lower foliage becoming chlorotic then necrotice0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ca (complete meristem necrosis with lower foliage becoming chlorotic then necrotic)”
t0“Ornamental Cabbage Plants”
Claim · model-written summary
Boron deficiency deformed young leaves and made expanded leaves thick, leathery, and brittle.
- Taxon
- CabbageBrassica oleracea var. capitatat0
- Treatment
- Be0
- Outcome
- deformed young leaves and fully expanded leaves becoming thick, leathery, and brittlee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“B (deformed young leaves and fully expanded leaves becoming thick, leathery, and brittle)”
t0“Ornamental Cabbage Plants”
Claim · model-written summary
Omission of N significantly reduced dry weight versus control.
- Taxon
- CabbageBrassica oleracea var. capitatat0
- Treatment
- Ne0
- Outcome
- dry weighte0
- Direction
- lowere0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“dry weight of plants treated with solutions not containing N, P, Ca, Fe, or B was significantly lower when compared to the control”
t0“Ornamental Cabbage Plants”
Claim · model-written summary
Omission of P significantly reduced dry weight versus control.
- Taxon
- CabbageBrassica oleracea var. capitatat0
- Treatment
- Pe0
- Outcome
- dry weighte0
- Direction
- lowere0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“dry weight of plants treated with solutions not containing N, P, Ca, Fe, or B was significantly lower when compared to the control”
t0“Ornamental Cabbage Plants”
Claim · model-written summary
Omission of Ca significantly reduced dry weight versus control.
- Taxon
- CabbageBrassica oleracea var. capitatat0
- Treatment
- Cae0
- Outcome
- dry weighte0
- Direction
- lowere0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“dry weight of plants treated with solutions not containing N, P, Ca, Fe, or B was significantly lower when compared to the control”
t0“Ornamental Cabbage Plants”
Claim · model-written summary
Omission of Fe significantly reduced dry weight versus control.
- Taxon
- CabbageBrassica oleracea var. capitatat0
- Treatment
- Fee0
- Outcome
- dry weighte0
- Direction
- lowere0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“dry weight of plants treated with solutions not containing N, P, Ca, Fe, or B was significantly lower when compared to the control”
t0“Ornamental Cabbage Plants”
Claim · model-written summary
Omission of B significantly reduced dry weight versus control.
- Taxon
- CabbageBrassica oleracea var. capitatat0
- Treatment
- Be0
- Outcome
- dry weighte0
- Direction
- lowere0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“dry weight of plants treated with solutions not containing N, P, Ca, Fe, or B was significantly lower when compared to the control”
t0“Ornamental Cabbage Plants”
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See all 103 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.