Abstract
Abstract The growth of excised grape shoots in the absence of roots was investigated using asceptic culture. Sustained shoot development was observed only when cytokinins were present in the media. We used ‘Concord’ ( Vitis labruscana Bailey) in most experiments, but the response was observed in other cultivars including those of Vitis vinifera L. Better response was obtained with cytokinin ribosides than with free bases. If roots developed, the requirement for an exogenous source of cytokinin was nullified.
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Claims 4
Claim · model-written summary
Sustained shoot development of excised grape shoots in aseptic culture was observed only when cytokinins were present in the medium.
Not reportedComparatorDirection
Verbatim
e0“The growth of excised grape shoots in the absence of roots was investigated using asceptic culture”
e1“Sustained shoot development was observed only when cytokinins were present in the media”
Claim · model-written summary
In grape shoot culture, cytokinin ribosides gave a better response than free cytokinin bases.
Verbatim
e0“The growth of excised grape shoots in the absence of roots was investigated using asceptic culture”
e1“Better response was obtained with cytokinin ribosides than with free bases”
Claim · model-written summary
When roots developed on the grape shoots, the requirement for an exogenous cytokinin source was nullified.
Verbatim
e0“The growth of excised grape shoots in the absence of roots was investigated using asceptic culture”
e1“If roots developed, the requirement for an exogenous source of cytokinin was nullified”
Claim · model-written summary
The shoot response to cytokinins was also observed in other cultivars, including Vitis vinifera cultivars.
- Taxon
- Vitis vinifera
Vitis viniferae1 - Material
- other cultivarse1
- Outcome
- responsee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the response was observed in other cultivars including those of Vitis vinifera L”
The same questions in other papers
class · growth · VitisPositive and negative results
19 papers in the same direction as this paper · 7 in the opposite direction
- negative
- no effect
- negative
23 papers more in this group
See all 27 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.