Abstract
We investigated the effect of night chilling on the photosynthetic physiology of two cultivars of mango (Mangifera indica) 'Choke Anand' and Khieo Sawoei. The potted mango seedlings of both cultivars were grown under the full light and 50% daylight for one year. In the following winter season (February 2006), the seedlings were moved to a cold storage room maintaining 4℃ for seven consecutive nights and returned to their original places during the rest of the day. Photosynthetic physiology was measured before, during the treatment, and during 10 days after the treatment. Chill-night treatment resulted in strong suppression in net photosynthesis (P(subscript n)), stomatal conductance (g(subscript s)), and maximum photochemical efficiency of PSIT (F(subscript v)/F(subscript m)), and increased non-photochemical quenching (NPQ) for both cultivars. Overall, the chilling-induced photosynthetic suppression was stronger in seedlings grown in full sunlight than in 50% daylight. The decrease in F(subscript v)/F(subscript ,) was stronger in 'Khieo Sawoei' than in 'Choke Anand' cultivar, and the increase of NPQ was relatively higher in 'Choke Anand' compared to 'Khieo Sawoei' cultivar. Night chilling resulted in a decrease in chlorophyll content and increase in the earotenoid: chlorophyll ratios, the malondialdehyde (MDA) contents, membrane leakage, as well as compatible solutes (total soluble sugar and proline) under both irradianees. After termination of the chilling treatment, the recovery of F(subscript v)/F(subscript m), was relatively quicker in 'Choke Anand' than in 'Khieo Sawoei' cultivar. Both cultivars showed a complete recovery after seven days of termination of the chilling treatment. These results showed that 'Khieo Sawoei' was more sensitive to chilling than 'Choke Anand', and shading significantly alleviated the chilling-induced photoinhibition.
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Claims 12
Claim · model-written summary
Night chilling strongly suppressed net photosynthesis, stomatal conductance and maximum photochemical efficiency of PSII in both mango cultivars.
- Taxon
- Mango
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Mangifera indicat0 - Treatment
- Chill-night treatmente1
- Outcome
- net photosynthesis (P(subscript n)), stomatal conductance (g(subscript s)), and maximum photochemical efficiency of PSITe1
- Direction
- suppressione1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_from_India.jpg?width=500)
Verbatim
t0“Mango”
e1“Chill-night treatment resulted in strong suppression in net photosynthesis (P(subscript n)), stomatal conductance (g(subscript s)), and maximum photochemical efficiency of PSIT”
Claim · model-written summary
Night chilling increased non-photochemical quenching (NPQ) in both mango cultivars.
- Taxon
- MangoMangifera indicat0
- Treatment
- Chill-night treatmente1
- Outcome
- non-photochemical quenching (NPQ)e2
- Direction
- increasede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Mango”
e1“Chill-night treatment”
e2“increased non-photochemical quenching (NPQ) for both cultivars”
Claim · model-written summary
Chilling-induced photosynthetic suppression was stronger in mango seedlings grown in full sunlight than in 50% daylight.
- Taxon
- MangoMangifera indicat0
- Treatment
- seedlings grown in full sunlighte1
- Outcome
- chilling-induced photosynthetic suppressione1
- Direction
- strongere1
- Comparator
- 50% daylighte1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Mango”
e1“the chilling-induced photosynthetic suppression was stronger in seedlings grown in full sunlight than in 50% daylight”
Claim · model-written summary
The chilling-induced decrease in Fv/Fm was stronger in Khieo Sawoei than in Choke Anand.
- Taxon
- MangoMangifera indicat0
- Material
- Khieo Sawoeie1
- Outcome
- decrease in F(subscript v)/F(subscript ,)e1
- Direction
- strongere1
- Comparator
- Choke Anande1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Mango”
e1“The decrease in F(subscript v)/F(subscript ,) was stronger in 'Khieo Sawoei' than in 'Choke Anand' cultivar”
Claim · model-written summary
The chilling-induced increase in NPQ was relatively higher in Choke Anand than in Khieo Sawoei.
- Taxon
- MangoMangifera indicat0
- Material
- Choke Anande1
- Outcome
- increase of NPQe1
- Direction
- highere1
- Comparator
- Khieo Sawoeie1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Mango”
e1“the increase of NPQ was relatively higher in 'Choke Anand' compared to 'Khieo Sawoei' cultivar”
Claim · model-written summary
Night chilling decreased chlorophyll content in mango under both irradiances.
- Taxon
- MangoMangifera indicat0
- Treatment
- Night chillinge1
- Outcome
- chlorophyll contente1
- Direction
- decreasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Mango”
e1“Night chilling resulted in a decrease in chlorophyll content”
Claim · model-written summary
Night chilling increased the carotenoid:chlorophyll ratio, malondialdehyde (MDA) content and membrane leakage in mango under both irradiances.
- Taxon
- MangoMangifera indicat0
- Treatment
- Night chillinge1
- Outcome
- earotenoid: chlorophyll ratios, the malondialdehyde (MDA) contents, membrane leakagee1
- Direction
- increasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Mango”
e1“Night chilling resulted in a decrease in chlorophyll content and increase in the earotenoid: chlorophyll ratios, the malondialdehyde (MDA) contents, membrane leakage, as well as compatible solutes (total soluble sugar and proline) under both irradianees”
Claim · model-written summary
Night chilling increased compatible solutes (total soluble sugar and proline) in mango under both irradiances.
- Taxon
- MangoMangifera indicat0
- Treatment
- Night chillinge1
- Outcome
- compatible solutes (total soluble sugar and proline)e1
- Direction
- increasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Mango”
e1“Night chilling resulted in a decrease in chlorophyll content and increase in the earotenoid: chlorophyll ratios, the malondialdehyde (MDA) contents, membrane leakage, as well as compatible solutes (total soluble sugar and proline) under both irradianees”
Claim · model-written summary
After chilling ended, recovery of Fv/Fm was relatively quicker in Choke Anand than in Khieo Sawoei.
- Taxon
- MangoMangifera indicat0
- Material
- Choke Anande1
- Outcome
- recovery of F(subscript v)/F(subscript m)e1
- Direction
- quickere1
- Comparator
- Khieo Sawoeie1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Mango”
e1“the recovery of F(subscript v)/F(subscript m), was relatively quicker in 'Choke Anand' than in 'Khieo Sawoei' cultivar”
Claim · model-written summary
Both mango cultivars showed complete recovery seven days after the chilling treatment ended.
- Taxon
- MangoMangifera indicat0
- Outcome
- complete recoverye1
- Qualifier
- after seven days of termination of the chilling treatmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Mango”
e1“Both cultivars showed a complete recovery after seven days of termination of the chilling treatment”
Claim · model-written summary
Shading significantly alleviated chilling-induced photoinhibition in mango.
- Taxon
- MangoMangifera indicat0
- Treatment
- shadinge1
- Outcome
- chilling-induced photoinhibitione1
- Direction
- alleviatede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Mango”
e1“shading significantly alleviated the chilling-induced photoinhibition”
Claim · model-written summary
Khieo Sawoei was more sensitive to chilling than Choke Anand.
- Taxon
- MangoMangifera indicat0
- Material
- Khieo Sawoeie1
- Outcome
- more sensitive to chillinge1
- Direction
- moree1
- Comparator
- Choke Anande1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Mango”
e1“'Khieo Sawoei' was more sensitive to chilling than 'Choke Anand'”
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1 paper more in this group
See all 5 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.