Abstract
Indonesia's sugar self-sufficiency was targeted since 2014 but the target has not been reached yet. One of the major constraints is the limited healthy seedlings available for new sugarcane area expansion. The mass production of healthy sugarcane seedlings may be achieved by rapid multiplication of tissue culture-derived seedlings using plant growth regulators (PGR) applied in the nursery house. The aim of this study was to determine the effect of ethephon and pacloburazol (PBZ) on the growth and seedling multiplication of sugarcane PSJT 941 variety. The research was carried out in the nursery house at Pasuruan Experimental Station, Indonesian Sugarcane Research Center. This study was arranged using a randomized block design with three replications. The treatments included (a) 3.5 ml/l ethephon, (b) 7.0 ml/l ethephon, (c) 1.5 ml/l PBZ, (d) 3.0 ml/l PBZ, and (e) control (without application of neither ethephon nor PBZ). The results showed that the highest number of shoots per clump was obtained from 3.0 ml/l PBZ treatment (8.7 shoots/clump) after 3 months of application. In the contrary, PBZ reduced the plant height compared with control and ethephon. Ethephon and PBZ treatments improved seed multiplication 8–52 times, much higher than the control that produced seed multiplication value six times. Further study is necessary to obtain optimal PBZ concentration for better stem height by decreasing the PBZ inhibition effect on stem growth.
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Claims 5
Claim · model-written summary
3.0 ml/l PBZ produced the most shoots per clump, 8.7 after three months.
- Taxon
- Sugarcanet0
- Material
- PSJT 941t0
- Treatment
- 3.0 ml/l PBZ treatmente0
- Outcome
- number of shoots per clumpe0
- Direction
- higheste0
- Value
- 8.7 shoots/clumpe0
- Qualifier
- after 3 months of applicatione0
Not reportedComparator
Verbatim
e0“the highest number of shoots per clump was obtained from 3.0 ml/l PBZ treatment (8.7 shoots/clump) after 3 months of application.”
t0“Sugarcane Seedlings of PSJT 941 Variety”
Claim · model-written summary
PBZ reduced plant height relative to control and ethephon.
Verbatim
e0“PBZ reduced the plant height compared with control and ethephon.”
t0“Sugarcane Seedlings of PSJT 941 Variety”
Claim · model-written summary
Ethephon improved seed multiplication to 8–52 times versus six times for control.
Verbatim
e0“Ethephon and PBZ treatments improved seed multiplication 8–52 times, much higher than the control that produced seed multiplication value six times.”
t0“Sugarcane Seedlings of PSJT 941 Variety”
Claim · model-written summary
PBZ improved seed multiplication to 8–52 times versus six times for control.
Verbatim
e0“Ethephon and PBZ treatments improved seed multiplication 8–52 times, much higher than the control that produced seed multiplication value six times.”
t0“Sugarcane Seedlings of PSJT 941 Variety”
Claim · model-written summary
The authors call for finding a PBZ concentration that improves stem height by reducing growth inhibition.
- Taxon
- Sugarcanet0
- Outcome
- obtain optimal PBZ concentration for better stem height by decreasing the PBZ inhibition effect on stem growthe0
Not reportedDirection
Verbatim
e0“Further study is necessary to obtain optimal PBZ concentration for better stem height by decreasing the PBZ inhibition effect on stem growth.”
t0“Sugarcane”
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