Abstract
Application of the cytokinin, 6-(benzylamino)-9-(2-tetrahydropyrany1)-9H-purine (PBA, 1mM) and 2-chloroethyl trimethyl ammonium chloride (chlormequat; 3 mM), a growth retardant, to grapevines induced the formation of fused leaves (two laminae and two petioles) and double leaves (two separate petioles each with a single lamina). Double leaves were found in Vitis vinifera L. seedlings, in Vitis riparia and in Muscadinia (Vitis) rotundifolia. In some of the treated vines, leaves arose with opposite phyllotaxy. Other anomalies included production of two opposite axillary buds in axils of opposite leaves and production of two tendrils per node. Some tendrils grew into shoots. In Muscat of Alexandria, application of GA3 (3 μM, 15 μM), followed by an application of chlormequat (0.4 mM, 1.2 mM), led to a marked reduction in the extension growth of axillary shoots.
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Claims 7
Claim · model-written summary
PBA and chlormequat induced fused and double grapevine leaves.
- Treatment
- PBA, 1mMe0
- Outcome
- fused leaves (two laminae and two petioles) and double leaves (two separate petioles each with a single lamina)e0
- Qualifier
- chlormequat; 3 mMe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of the cytokinin, 6-(benzylamino)-9-(2-tetrahydropyrany1)-9H-purine (PBA, 1mM) and 2-chloroethyl trimethyl ammonium chloride (chlormequat; 3 mM), a growth retardant, to grapevines induced the formation of fused leaves (two laminae and two petioles) and double leaves (two separate petioles each with a single lamina).”
Claim · model-written summary
Double leaves occurred in Vitis vinifera seedlings, Vitis riparia, and Muscadinia rotundifolia.
- Taxon
- Vitis vinifera L.
Vitis viniferae0 - Outcome
- Double leavese0
- Qualifier
- Vitis riparia and in Muscadinia (Vitis) rotundifoliae0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Double leaves were found in Vitis vinifera L. seedlings, in Vitis riparia and in Muscadinia (Vitis) rotundifolia.”
Claim · model-written summary
Some treated vines formed leaves with opposite phyllotaxy.
Not reportedComparatorDirection
Verbatim
e0“In some of the treated vines, leaves arose with opposite phyllotaxy.”
Claim · model-written summary
Treated vines had two opposite axillary buds in opposite leaf axils.
- Outcome
- two opposite axillary buds in axils of opposite leavese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Other anomalies included production of two opposite axillary buds in axils of opposite leaves and production of two tendrils per node.”
t0“Vitis”
Claim · model-written summary
Treated vines had two tendrils per node.
- Outcome
- two tendrils per nodee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Other anomalies included production of two opposite axillary buds in axils of opposite leaves and production of two tendrils per node.”
t0“Vitis”
Claim · model-written summary
Some grapevine tendrils grew into shoots.
- Outcome
- tendrils grew into shootse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Some tendrils grew into shoots.”
t0“Vitis”
Claim · model-written summary
GA3 followed by chlormequat markedly reduced axillary shoot extension growth in Muscat of Alexandria.
- Material
- Muscat of Alexandriae0
- Treatment
- GA3 (3 μM, 15 μM), followed by an application of chlormequat (0.4 mM, 1.2 mM)e0
- Outcome
- extension growth of axillary shootse0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In Muscat of Alexandria, application of GA3 (3 μM, 15 μM), followed by an application of chlormequat (0.4 mM, 1.2 mM), led to a marked reduction in the extension growth of axillary shoots.”
t0“Vitis”