Abstract
(1) Background: Mineral nutrient deficiencies are a major constraint on grapevine growth and productivity, yet the clear identification of deficiency symptoms and their physiological impacts remains challenging. (2) Methods: In this study, ‘Thompson Seedless’ grapevines were grown hydroponically under the controlled omission of ten essential nutrients (N, P, K, Ca, Mg, Fe, Mn, B, Zn, Cu) to assess their impact on growth, leaf morphology, chlorophyll content, photosynthesis, respiration, and tissue nutrient concentrations. (3) Results: Deficiencies in N, P, K, Mn, and B caused distinct leaf symptoms: nitrogen (N) deficiency led to pale leaves with bluish-green veins, phosphorus (P) deficiency caused yellowing in apical leaves followed by interveinal chlorosis, and potassium (K) deficiency induced pale yellow discoloration, curling, and rotting of the leaves. Manganese (Mn) and boron (B) deficiencies showed symptoms such as irregular leaf shapes and brittle, glossy leaves, respectively. These deficiencies resulted in reduced dry matter accumulation, decreased shoot length, and lower chlorophyll content. In contrast, iron (Fe) and copper (Cu) deficiencies had minimal effects, closely resembling those of the control conditions with only slight growth suppression. Notably, N, B, and Mg deficiencies led to significant reductions in Cu, Mg, B, and N levels, particularly evident through distinct symptoms in newly formed leaves. (4) Conclusions: Deficiencies in N, P, K, Mg, and B significantly affect grapevine growth, physiological processes, and nutritional quality. These findings emphasize the importance of maintaining balanced mineral nutrition for optimal grapevine health and productivity.
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Claims 8
Claim · model-written summary
Deficiencies in N, P, K, Mn and B reduced dry matter accumulation, shoot length and chlorophyll content in grapevines.
- Treatment
- Deficiencies in N, P, K, Mn, and Be2
- Outcome
- dry matter accumulation, decreased shoot length, and lower chlorophyll contente1
- Direction
- reducede1
VitisNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grapevines were grown hydroponically”
e1“These deficiencies resulted in reduced dry matter accumulation, decreased shoot length, and lower chlorophyll content”
e2“Deficiencies in N, P, K, Mn, and B caused distinct leaf symptoms”
Claim · model-written summary
Iron and copper deficiencies had minimal effects on grapevines, closely resembling control conditions with only slight growth suppression.
- Treatment
- iron (Fe) and copper (Cu) deficienciese3
- Outcome
- slight growth suppressione3
- Direction
- minimal effectse3
- Comparator
- control conditionse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grapevines were grown hydroponically”
e3“In contrast, iron (Fe) and copper (Cu) deficiencies had minimal effects, closely resembling those of the control conditions with only slight growth suppression”
Claim · model-written summary
N, B and Mg deficiencies significantly reduced Cu, Mg, B and N levels in grapevines.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grapevines were grown hydroponically”
e4“N, B, and Mg deficiencies led to significant reductions in Cu, Mg, B, and N levels”
Claim · model-written summary
Nitrogen deficiency produced pale leaves with bluish-green veins in grapevines.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grapevines were grown hydroponically”
e5“nitrogen (N) deficiency led to pale leaves with bluish-green veins”
Claim · model-written summary
Phosphorus deficiency caused yellowing in apical leaves followed by interveinal chlorosis in grapevines.
- Treatment
- phosphorus (P) deficiencye6
- Outcome
- yellowing in apical leaves followed by interveinal chlorosise6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grapevines were grown hydroponically”
e6“phosphorus (P) deficiency caused yellowing in apical leaves followed by interveinal chlorosis”
Claim · model-written summary
Potassium deficiency induced pale yellow discoloration, curling and rotting of grapevine leaves.
- Treatment
- potassium (K) deficiencye7
- Outcome
- pale yellow discoloration, curling, and rotting of the leavese7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grapevines were grown hydroponically”
e7“potassium (K) deficiency induced pale yellow discoloration, curling, and rotting of the leaves”
Claim · model-written summary
Manganese deficiency produced irregular leaf shapes in grapevines.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grapevines were grown hydroponically”
e1“Manganese (Mn) and boron (B) deficiencies showed symptoms such as irregular leaf shapes and brittle, glossy leaves, respectively”
Claim · model-written summary
Boron deficiency produced brittle, glossy leaves in grapevines.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grapevines were grown hydroponically”
e1“Manganese (Mn) and boron (B) deficiencies showed symptoms such as irregular leaf shapes and brittle, glossy leaves, respectively”
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See all 12 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.