Abstract
ABSTARCT The physiology of floral induction in mango is still controversial and thus further work is needed for a better understanding of reproductive physiology of this important fruit tree. The objectives of this study were to investigate the role of a gibberellins biosynthesis inhibitor, paclobutrazol on floral induction of biennially bearing mango during off year and to examine the possible correlated hormonal and non-structural carbohydrate changes. Three distinctly biennially bearing mango cultivars were tested for two years under North Sudan climates. Results indicated the advantage of paclobutrazol on inducing flowering of the biennially bearing mango cultivars, Miska, Mahmoudi, and Totocombo during off year. Similar trends of hormonal changes were observed during the floral induction period on the tested cultivars. More-specifically, the levels of cytokinins (zeatin (z) + zeatin riboside (zr) and isopentenyl Adenosine (i-Ado) + isopentenyl Adenine (i-Ade)), and to a less extent the levels of abscisic acid (ABA) generally showed trends of increase during the floral induction period, while those of gibberellins (GA1+3+20) and auxin (IAA) were decreased during the same period. Starch levels in most of the cases were increased by the paclobutrazol treatment. Moreover, sucrose levels were generally increased during the floral induction period. To close, possible roles for some of the tested hormones and nonstructural carbohydrates on mango flowering are probably implicated.
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Claims 7
Claim · model-written summary
Paclobutrazol advantageously induced flowering of biennially bearing mango cultivars during the off year.
- Taxon
- mango
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Mangifera indicae0 - Material
- Miska, Mahmoudi, and Totocomboe0
- Organ / stage
- off yeare0
- Treatment
- paclobutrazole0
- Outcome
- inducing floweringe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_from_India.jpg?width=500)
Verbatim
e0“Results indicated the advantage of paclobutrazol on inducing flowering of the biennially bearing mango cultivars, Miska, Mahmoudi, and Totocombo during off year”
Claim · model-written summary
Cytokinin levels showed trends of increase during the floral induction period.
- Taxon
- mangoMangifera indicae0
- Organ / stage
- floral induction periode1
- Outcome
- levels of cytokininse1
- Direction
- increasee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the levels of cytokinins (zeatin (z) + zeatin riboside (zr) and isopentenyl Adenosine (i-Ado) + isopentenyl Adenine (i-Ade)), and to a less extent the levels of abscisic acid (ABA) generally showed trends of increase during the floral induction period”
e0“Results indicated the advantage of paclobutrazol on inducing flowering of the biennially bearing mango cultivars, Miska, Mahmoudi, and Totocombo during off year”
Claim · model-written summary
Abscisic acid levels showed a smaller trend of increase during the floral induction period.
- Taxon
- mangoMangifera indicae0
- Organ / stage
- floral induction periode1
- Outcome
- levels of abscisic acid (ABA)e1
- Direction
- increasee1
- Qualifier
- to a less extente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the levels of cytokinins (zeatin (z) + zeatin riboside (zr) and isopentenyl Adenosine (i-Ado) + isopentenyl Adenine (i-Ade)), and to a less extent the levels of abscisic acid (ABA) generally showed trends of increase during the floral induction period”
e0“Results indicated the advantage of paclobutrazol on inducing flowering of the biennially bearing mango cultivars, Miska, Mahmoudi, and Totocombo during off year”
Claim · model-written summary
Gibberellins (GA1+3+20) and auxin (IAA) levels decreased during the floral induction period.
- Taxon
- mangoMangifera indicae0
- Organ / stage
- floral induction periode1
- Outcome
- gibberellins (GA1+3+20) and auxin (IAA)e2
- Direction
- decreasede2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“while those of gibberellins (GA1+3+20) and auxin (IAA) were decreased during the same period”
e1“the levels of cytokinins (zeatin (z) + zeatin riboside (zr) and isopentenyl Adenosine (i-Ado) + isopentenyl Adenine (i-Ade)), and to a less extent the levels of abscisic acid (ABA) generally showed trends of increase during the floral induction period”
e0“Results indicated the advantage of paclobutrazol on inducing flowering of the biennially bearing mango cultivars, Miska, Mahmoudi, and Totocombo during off year”
Claim · model-written summary
Paclobutrazol increased starch levels in most cases.
- Taxon
- mangoMangifera indicae0
- Treatment
- paclobutrazol treatmente3
- Outcome
- Starch levelse3
- Direction
- increasede3
- Qualifier
- in most of the casese3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Starch levels in most of the cases were increased by the paclobutrazol treatment”
e0“Results indicated the advantage of paclobutrazol on inducing flowering of the biennially bearing mango cultivars, Miska, Mahmoudi, and Totocombo during off year”
Claim · model-written summary
Sucrose levels generally increased during the floral induction period.
- Taxon
- mangoMangifera indicae0
- Organ / stage
- floral induction periode4
- Outcome
- sucrose levelse4
- Direction
- increasede4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Moreover, sucrose levels were generally increased during the floral induction period”
e0“Results indicated the advantage of paclobutrazol on inducing flowering of the biennially bearing mango cultivars, Miska, Mahmoudi, and Totocombo during off year”
Claim · model-written summary
Some of the tested hormones and nonstructural carbohydrates are probably implicated in mango flowering.
- Taxon
- mangoMangifera indicae5
- Compound
- hormonese5
- Outcome
- mango floweringe5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“possible roles for some of the tested hormones and nonstructural carbohydrates on mango flowering are probably implicated”
The same questions in other papers
paclobutrazol · phenology · Mangifera indica (mango)Results agree
27 papers in the same direction as this paper
- positive
- positive
- positive
24 papers more in this group
See all 28 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.