Abstract
Aims of the present two-year study were to evaluate the feasibility and identify potential drawbacks of the greenhouse/outdoors parallel plant growth methods for investigation of the effects of various winter chilling regimes on flowering quality indicators of four Greek olive cultivars, namely Mastoidis, Amfissis, and Lefkolia Serron (originating from mountainous and colder areas) compared to cv. Koroneiki (grown mainly in plain warm areas). Groups of potted olive plants were either grown outdoors under ambient temperature or transferred into a greenhouse for one, two, or three months during winter in Crete, Greece. During the first year, chilling accumulation deficit caused a marked decrease in the number of inflorescences per plant in all four olive cultivars. In the second year, chilling accumulation deficit had a negative effect on the number of inflorescences per plant in 'Mastoidis' at 3-month greenhouse treatment but not at all in 'Koroneiki'. Chilling deficit caused an overall decrease in the number of flowers per inflorescence in both 'Koroneiki' and 'Mastoidis' as well as in the percentage of morphologically perfect flowers. The width and length of inflorescences were not affected by chilling deficit in both the cultivars. In vitro pollen germination was reduced in all greenhouse treatments in 'Koroneiki'; however, this effect was significant only after 3 month, whereas no effect was observed in 'Mastoidis'. The results of the present study may contribute to understanding olive flowering biology and selecting appropriate cultivars for new plantations according to historical meteorological data and predicted climate change scenarios.
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Claims 11
Claim · model-written summary
First-year chilling deficit markedly reduced inflorescences per plant across four olive cultivars.
- Taxon
- olive
Olea europaeae0 - Treatment
- chilling accumulation deficite0
- Outcome
- number of inflorescences per plante0
- Direction
- marked decreasee0
- Qualifier
- all four olive cultivarse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“During the first year, chilling accumulation deficit caused a marked decrease in the number of inflorescences per plant in all four olive cultivars”
Claim · model-written summary
In year two, three-month greenhouse chilling deficit reduced inflorescences per plant in Mastoidis.
- Taxon
- oliveOlea europaeat1
- Material
- Mastoidise0
- Treatment
- 3-month greenhouse treatmente0
- Outcome
- number of inflorescences per plante0
- Direction
- negative effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the second year, chilling accumulation deficit had a negative effect on the number of inflorescences per plant in 'Mastoidis' at 3-month greenhouse treatment but not at all in 'Koroneiki'”
t1“Greek olive cultivars”
Claim · model-written summary
In year two, chilling deficit did not affect Koroneiki inflorescences per plant.
- Taxon
- oliveOlea europaeat1
- Material
- Koroneikie0
- Treatment
- chilling accumulation deficite0
- Outcome
- number of inflorescences per plante0
- Direction
- not at alle0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the second year, chilling accumulation deficit had a negative effect on the number of inflorescences per plant in 'Mastoidis' at 3-month greenhouse treatment but not at all in 'Koroneiki'”
t1“Greek olive cultivars”
Claim · model-written summary
Chilling deficit decreased flowers per inflorescence in Koroneiki.
- Taxon
- oliveOlea europaeat1
- Material
- Koroneikie0
- Treatment
- chilling deficite0
- Outcome
- number of flowers per inflorescencee0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chilling deficit caused an overall decrease in the number of flowers per inflorescence in both 'Koroneiki' and 'Mastoidis' as well as in the percentage of morphologically perfect flowers”
t1“Greek olive cultivars”
Claim · model-written summary
Chilling deficit decreased flowers per inflorescence in Mastoidis.
- Taxon
- oliveOlea europaeat1
- Material
- Mastoidise0
- Treatment
- chilling deficite0
- Outcome
- number of flowers per inflorescencee0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chilling deficit caused an overall decrease in the number of flowers per inflorescence in both 'Koroneiki' and 'Mastoidis' as well as in the percentage of morphologically perfect flowers”
t1“Greek olive cultivars”
Claim · model-written summary
Chilling deficit reduced the percentage of morphologically perfect flowers in Koroneiki.
- Taxon
- oliveOlea europaeat1
- Material
- Koroneikie0
- Treatment
- chilling deficite0
- Outcome
- percentage of morphologically perfect flowerse0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chilling deficit caused an overall decrease in the number of flowers per inflorescence in both 'Koroneiki' and 'Mastoidis' as well as in the percentage of morphologically perfect flowers”
t1“Greek olive cultivars”
Claim · model-written summary
Chilling deficit reduced the percentage of morphologically perfect flowers in Mastoidis.
- Taxon
- oliveOlea europaeat1
- Material
- Mastoidise0
- Treatment
- chilling deficite0
- Outcome
- percentage of morphologically perfect flowerse0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chilling deficit caused an overall decrease in the number of flowers per inflorescence in both 'Koroneiki' and 'Mastoidis' as well as in the percentage of morphologically perfect flowers”
t1“Greek olive cultivars”
Claim · model-written summary
Chilling deficit did not affect inflorescence width and length in Koroneiki.
- Taxon
- oliveOlea europaeat1
- Material
- Koroneikie1
- Treatment
- chilling deficite0
- Outcome
- width and length of inflorescencese0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The width and length of inflorescences were not affected by chilling deficit in both the cultivars”
t1“Greek olive cultivars”
e1“In the second year, chilling accumulation deficit had a negative effect on the number of inflorescences per plant in 'Mastoidis' at 3-month greenhouse treatment but not at all in 'Koroneiki'”
Claim · model-written summary
Chilling deficit did not affect inflorescence width and length in Mastoidis.
- Taxon
- oliveOlea europaeat1
- Material
- Mastoidise1
- Treatment
- chilling deficite0
- Outcome
- width and length of inflorescencese0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The width and length of inflorescences were not affected by chilling deficit in both the cultivars”
t1“Greek olive cultivars”
e1“In the second year, chilling accumulation deficit had a negative effect on the number of inflorescences per plant in 'Mastoidis' at 3-month greenhouse treatment but not at all in 'Koroneiki'”
Claim · model-written summary
Greenhouse treatment reduced Koroneiki in vitro pollen germination, significantly only at three months.
- Taxon
- oliveOlea europaeat1
- Material
- Koroneikie0
- Treatment
- greenhouse treatmentse0
- Outcome
- In vitro pollen germinatione0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In vitro pollen germination was reduced in all greenhouse treatments in 'Koroneiki'; however, this effect was significant only after 3 month, whereas no effect was observed in 'Mastoidis'”
t1“Greek olive cultivars”
Claim · model-written summary
Greenhouse treatment had no observed effect on Mastoidis in vitro pollen germination.
- Taxon
- oliveOlea europaeat1
- Material
- Mastoidise0
- Treatment
- greenhouse treatmentse0
- Outcome
- In vitro pollen germinatione0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In vitro pollen germination was reduced in all greenhouse treatments in 'Koroneiki'; however, this effect was significant only after 3 month, whereas no effect was observed in 'Mastoidis'”
t1“Greek olive cultivars”
The same questions in other papers
cold · phenology · Olea europaea (common olive)Positive and negative results
2 in the opposite direction
- positive
- positive
cultivation system · yield · Olea europaea (common olive)Positive and negative results
2 papers in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- negative
1 paper more in this group
See all 5 papers →cold · yield · Olea europaea (common olive)Results agree
1 paper in the same direction as this paper
- no effect
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.