Abstract
One of the major problems in the fruit production of citrus, including pummelo (Citrus grandis) is controlling flowering induction. Water stress is known to be related to flowering induction via physiological responses related to the flowering gene. However, reports on the mechanisms underlying floral induction by water stress in pummelo are limited. Thus, this study aimed to determine the physiological characteristics and the expression of genes related to flowering induction, CiFT (Citrus Flowering locus T), in pummelo at different levels of water stress. Experiments were conducted under two growing conditions: field and container conditions, each using a 2 × 5 factorial experiment in a randomized complete block. Factor A consisted of two red-flesh pummelo cultivars while factor B consisted of five levels of water stress based on the leaf rolling index. Among the seven characteristics studied, only the data of total nitrogen, CiFT, and flower number were combined for analysis due to their results in a homogeneity test. Although a consistent tendency was not observed for the interaction among environments, genotypes, and water stress levels of all characteristics, ‘KKU-105’ grew more flowers under higher water stress conditions (225 flowers). This result may imply that decreases in total nitrogen (1.48%), stomatal conductance (50.53 m−2s−1), chlorophyll fluorescence (0.30 Fv/Fm), and upregulation of CiFT mRNA level (13.95) may induce flowering in the pummelo cultivar ‘KKU-105’.
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Claims 6
Claim · model-written summary
Cultivar KKU-105 produced more flowers under higher water stress conditions (225 flowers).
- Taxon
- pummelo
Citrus maximae0 - Material
- KKU-105e2
- Treatment
- higher water stress conditionse2
- Outcome
- flowerse2
- Direction
- moree2
- Value
- 225 flowerse2
- Setting
- field and container conditionse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pummelo (Citrus grandis)”
e1“Experiments were conducted under two growing conditions: field and container conditions”
e2“KKU-105’ grew more flowers under higher water stress conditions (225 flowers)”
Claim · model-written summary
Decreased total nitrogen (1.48%) may induce flowering in pummelo.
- Taxon
- pummeloCitrus maximae0
- Outcome
- floweringe4
- Value
- 1.48%e3
- Qualifier
- decreases in total nitrogen (1.48%)e3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pummelo (Citrus grandis)”
e3“decreases in total nitrogen (1.48%)”
e4“may induce flowering in the pummelo cultivar”
Claim · model-written summary
Decreased stomatal conductance (50.53 m−2s−1) may induce flowering in pummelo.
- Taxon
- pummeloCitrus maximae0
- Outcome
- floweringe4
- Value
- 50.53 m−2s−1e5
- Qualifier
- stomatal conductancee5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pummelo (Citrus grandis)”
e5“stomatal conductance (50.53 m−2s−1)”
e4“may induce flowering in the pummelo cultivar”
Claim · model-written summary
Decreased chlorophyll fluorescence (0.30 Fv/Fm) may induce flowering in pummelo.
- Taxon
- pummeloCitrus maximae0
- Outcome
- floweringe4
- Value
- 0.30 Fv/Fme6
- Qualifier
- chlorophyll fluorescencee6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pummelo (Citrus grandis)”
e6“chlorophyll fluorescence (0.30 Fv/Fm)”
e4“may induce flowering in the pummelo cultivar”
Claim · model-written summary
Upregulation of CiFT mRNA level (13.95) may induce flowering in pummelo.
- Taxon
- pummeloCitrus maximae0
- Gene
- CiFTe7
- Outcome
- floweringe4
- Value
- 13.95e7
- Qualifier
- upregulation of CiFT mRNA levele7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pummelo (Citrus grandis)”
e7“upregulation of CiFT mRNA level (13.95)”
e4“may induce flowering in the pummelo cultivar”
Claim · model-written summary
No consistent tendency was observed for the interaction among environments, genotypes and water-stress levels across all characteristics in pummelo.
- Taxon
- pummeloCitrus maximae0
- Outcome
- interaction among environments, genotypes, and water stress levelse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pummelo (Citrus grandis)”
e1“Although a consistent tendency was not observed for the interaction among environments, genotypes, and water stress levels of all characteristics”
The same questions in other papers
drought · phenology · Citrus maxima (pummelo)Results agree
1 paper in the same direction as this paper
- positive
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.