Abstract
The flowering and fruiting of individual mango plant under high density planting is comparatively low. Among different strategies evolved, paclobutrazol and potassium nitrate application is effective not only in flower induction but also in early and offseason flower production in mango. A field experiment was conducted to study the effect of paclobutrazol and potassium nitrate on the vegetative growth, nutrient mobilisation to leaves, flowering and fruit yield of Amrapali mango (Mangifera indica L.) plants grown under different plant spacings at Horticultural Research Station, OUAT, Bhubaneswar during 2018-19 and 2019-20. The experiment was laid out in a Factorial Randomized Block Design with 24 treatment combinations and 2 replications. The treatment combinations consist of four levels of spacings (2.0 x 2.0 m, 4.0 x 2.0 m, 4.0 x 4.0 m, 8.0 x 2.0 m) and 6 levels of chemical treatments (Paclobutrazol@0.25, 0.50 and 0.75 g a.i. per meter of canopy spread and KNO3@ 2% and 4%) and a control with water application. The results of the study revealed that the plants spaced at 2.0 x 2.0 m recorded minimum vegetative growth except plant height and maximum yield (t/ha) in comparison to the plant spacing of 4.0 x 2.0 m, 4.0 x 4.0 m, 8.0 x 2.0 m. Among chemical treatments paclobutrazol irrespective of its concentration significantly reduced vegetative growth, increase flowering intensity and yield. There was a reduction in leaf N, P and K contents and increase in total leaf chlorophyll content in the plants treated with Paclobutrazol. Higher concentration of Paclobutrazol (0.75 g a.i.) reduced the yield. Whereas KNO3 increase the vegetative growth, leaf biochemical status, flowering intensity and yield. But the increase in yield of mango plant due to Paclobutrazol treatment @ 0.50 g a.i. and 0.25 g a.i. was significantly higher than KNO3 at both the applied concentration. Hence, soil drenching of paclobutrazol at 0.50 g a.i. per meter of canopy spread irrespective of plant spacing during September seems recommendable for regulating tree size and enhancing yield in mango cv. Amrapali planted under higher densities. The productivity of Amrapali mango plant can be improved through application of flower inducer like PBZ and KNO3.
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Claims 15
Claim · model-written summary
The closest spacing gave minimum vegetative growth except height.
- Taxon
- mango
_from_India.jpg?width=60)
Mangifera indicat0 - Treatment
- 2.0 x 2.0 me0
- Outcome
- vegetative growthe0
- Direction
- minimume0
- Qualifier
- except plant heighte0
- Comparator
- 4.0 x 2.0 m, 4.0 x 4.0 m, 8.0 x 2.0 me0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_from_India.jpg?width=500)
Verbatim
e0“plants spaced at 2.0 x 2.0 m recorded minimum vegetative growth except plant height and maximum yield (t/ha) in comparison to the plant spacing of 4.0 x 2.0 m, 4.0 x 4.0 m, 8.0 x 2.0 m”
t0“Mango”
Claim · model-written summary
The closest spacing gave maximum yield per hectare.
- Taxon
- mangoMangifera indicat0
- Treatment
- 2.0 x 2.0 me0
- Outcome
- yield (t/ha)e0
- Direction
- maximume0
- Comparator
- 4.0 x 2.0 m, 4.0 x 4.0 m, 8.0 x 2.0 me0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plants spaced at 2.0 x 2.0 m recorded minimum vegetative growth except plant height and maximum yield (t/ha) in comparison to the plant spacing of 4.0 x 2.0 m, 4.0 x 4.0 m, 8.0 x 2.0 m”
t0“Mango”
Claim · model-written summary
Paclobutrazol reduced vegetative growth.
- Taxon
- mangoMangifera indicat0
- Treatment
- paclobutrazole0
- Outcome
- vegetative growthe0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“paclobutrazol irrespective of its concentration significantly reduced vegetative growth, increase flowering intensity and yield”
t0“Mango”
Claim · model-written summary
Paclobutrazol increased flowering intensity.
- Taxon
- mangoMangifera indicat0
- Treatment
- paclobutrazole0
- Outcome
- flowering intensitye0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“paclobutrazol irrespective of its concentration significantly reduced vegetative growth, increase flowering intensity and yield”
t0“Mango”
Claim · model-written summary
Paclobutrazol increased yield.
- Taxon
- mangoMangifera indicat0
- Treatment
- paclobutrazole0
- Outcome
- yielde0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“paclobutrazol irrespective of its concentration significantly reduced vegetative growth, increase flowering intensity and yield”
t0“Mango”
Claim · model-written summary
Paclobutrazol lowered leaf N, P and K contents.
- Taxon
- mangoMangifera indicat0
- Treatment
- Paclobutrazole0
- Outcome
- leaf N, P and K contentse0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reduction in leaf N, P and K contents and increase in total leaf chlorophyll content in the plants treated with Paclobutrazol”
t0“Mango”
Claim · model-written summary
Paclobutrazol increased total leaf chlorophyll.
- Taxon
- mangoMangifera indicat0
- Treatment
- Paclobutrazole0
- Outcome
- total leaf chlorophyll contente0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reduction in leaf N, P and K contents and increase in total leaf chlorophyll content in the plants treated with Paclobutrazol”
t0“Mango”
Claim · model-written summary
High paclobutrazol concentration reduced yield.
- Taxon
- mangoMangifera indicat0
- Treatment
- Paclobutrazol (0.75 g a.i.)e0
- Outcome
- yielde0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Higher concentration of Paclobutrazol (0.75 g a.i.) reduced the yield”
t0“Mango”
Claim · model-written summary
KNO3 increased vegetative growth.
- Taxon
- mangoMangifera indicat0
- Treatment
- KNO3e0
- Outcome
- vegetative growthe0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“KNO3 increase the vegetative growth, leaf biochemical status, flowering intensity and yield”
t0“Mango”
Claim · model-written summary
KNO3 increased leaf biochemical status.
- Taxon
- mangoMangifera indicat0
- Treatment
- KNO3e0
- Outcome
- leaf biochemical statuse0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“KNO3 increase the vegetative growth, leaf biochemical status, flowering intensity and yield”
t0“Mango”
Claim · model-written summary
KNO3 increased flowering intensity.
- Taxon
- mangoMangifera indicat0
- Treatment
- KNO3e0
- Outcome
- flowering intensitye0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“KNO3 increase the vegetative growth, leaf biochemical status, flowering intensity and yield”
t0“Mango”
Claim · model-written summary
KNO3 increased yield.
- Taxon
- mangoMangifera indicat0
- Treatment
- KNO3e0
- Outcome
- yielde0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“KNO3 increase the vegetative growth, leaf biochemical status, flowering intensity and yield”
t0“Mango”
Claim · model-written summary
Paclobutrazol at 0.50 g a.i. increased yield more than KNO3 at either concentration.
- Taxon
- mangoMangifera indicae0
- Treatment
- Paclobutrazol treatment @ 0.50 g a.i.e0
- Outcome
- yielde0
- Direction
- highere0
- Comparator
- KNO3e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increase in yield of mango plant due to Paclobutrazol treatment @ 0.50 g a.i. and 0.25 g a.i. was significantly higher than KNO3 at both the applied concentration”
Claim · model-written summary
Paclobutrazol at 0.25 g a.i. increased yield more than KNO3 at either concentration.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increase in yield of mango plant due to Paclobutrazol treatment @ 0.50 g a.i. and 0.25 g a.i. was significantly higher than KNO3 at both the applied concentration”
Claim · model-written summary
The authors recommend September soil drenching with paclobutrazol at 0.50 g a.i. per metre of canopy spread to control tree size and improve yield.
- Taxon
- mangoMangifera indicae0
- Treatment
- soil drenching of paclobutrazol at 0.50 g a.i. per meter of canopy spreade0
- Outcome
- regulating tree size and enhancing yielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soil drenching of paclobutrazol at 0.50 g a.i. per meter of canopy spread irrespective of plant spacing during September seems recommendable for regulating tree size and enhancing yield in mango cv. Amrapali”
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