Abstract
The effect of disbudding on rooting and endogenous IAA in 'Muscat Bailey A' grapevine cuttings was investigated. Disbudding completely inhibited rooting of grapevine cuttings. More diffusible IAA was found in disbudded cuttings than in cuttings with one bud. The level of extractable IAA in the basal part where adventitious roots appear was significantly higher in the 1-bud cuttings than in disbudded cuttings 10 to 15 days after planting. It is assumed that during this period, root primordia are formed. Conversely, the applications of IBA and NAA to the disbudded cuttings induced root formation. However, the daily trends of endogenous IAA, especially that of extractable IAA, differed between the IBA and NAA treatments. Extractable IAA of disbudded cuttings treated with NAA increased for 20 days after planting, whereas in cuttings treated with IBA, there was no increase, the trend being similar to that of the control cuttings. These re-sults indicate that in the process of root formation in grapevine cuttings, a difference ex-ists between IBA and NAA action. It is also assumed that disbudding eliminated the source of extractable IAA which, therefore, inhibited rooting.
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Claims 10
Claim · model-written summary
Removing buds completely inhibited rooting of grapevine cuttings.
VitisNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Disbudding completely inhibited rooting of grapevine cuttings.”
Claim · model-written summary
Disbudded cuttings contained more diffusible IAA than one bud cuttings.
Verbatim
e0“More diffusible IAA was found in disbudded cuttings than in cuttings with one bud.”
t0“Grape”
Claim · model-written summary
Extractable IAA at the basal rooting zone was significantly higher in one bud cuttings 10 to 15 days after planting.
Verbatim
e0“The level of extractable IAA in the basal part where adventitious roots appear was significantly higher in the 1-bud cuttings than in disbudded cuttings 10 to 15 days after planting.”
t0“Grape”
Claim · model-written summary
The authors inferred root primordia form 10 to 15 days after planting.
Not reportedDirection
Verbatim
t0“Grape”
e0“10 to 15 days after planting. It is assumed that during this period, root primordia are formed.”
Claim · model-written summary
IBA application induced root formation in disbudded cuttings.
Not reportedComparator
Verbatim
t0“Grape”
e0“the applications of IBA and NAA to the disbudded cuttings induced root formation”
Claim · model-written summary
NAA application induced root formation in disbudded cuttings.
Not reportedComparator
Verbatim
t0“Grape”
e0“the applications of IBA and NAA to the disbudded cuttings induced root formation”
Claim · model-written summary
Endogenous IAA trends differed between IBA and NAA treatments.
Verbatim
t0“Grape”
e0“the daily trends of endogenous IAA, especially that of extractable IAA, differed between the IBA and NAA treatments”
Claim · model-written summary
NAA treatment increased extractable IAA for 20 days after planting.
- Taxon
- Grapet0
- Treatment
- NAAe0
- Outcome
- Extractable IAAe0
- Direction
- increasede0
- Qualifier
- 20 days after plantinge0
Not reportedComparator
Verbatim
t0“Grape”
e0“Extractable IAA of disbudded cuttings treated with NAA increased for 20 days after planting”
Claim · model-written summary
IBA treatment did not increase extractable IAA in disbudded cuttings, similar to controls.
Verbatim
t0“Grape”
e0“in cuttings treated with IBA, there was no increase, the trend being similar to that of the control cuttings.”
e1“Extractable IAA of disbudded cuttings treated with NAA increased for 20 days after planting”
Claim · model-written summary
The authors inferred that disbudding removed a source of extractable IAA and thereby inhibited rooting.
Verbatim
t0“Grape”
e0“disbudding eliminated the source of extractable IAA which, therefore, inhibited rooting”
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