Abstract
Many physiological processes related to plant growth and development are under the influence of growth regulators, which also have an impact on pollen germination. In this study, the effects of two brassinosteroid compounds, epibrassinolide and 22S,23S-homobrassinolide, and gibberellic acid (GA3) on in vitro pollen germination of two table grape cultivars, ‘Italia’ and ‘Cardinal’ (Vitis vinifera L.), were determined. A total of 28 treatments, alone and in combination, were applied to freshly collected pollens which were sown on a basic medium with 1% agar and 20% sucrose. Petri dishes were kept at 26±1°C for 24 hours. Counting of the germinated pollens revealed that the effects of these plant hormones were cultivar- and substance-specific. The cultivar ‘Italia’ was not influenced by the treatments (the highest germination ratio being 44.4% from 0.001 mg L-1 epibrassinolide) as opposed to the cultivar ‘Cardinal’. The highest germination ratio in ‘Cardinal’ was about 50% in pollens treated with 25 mg L-1 GA3 + 0.01 mg L-1 epibrassinolide. The control group resulted in 32.38% germination. Combining GA3 with epibrassinolide provided slightly higher germination ratios compared to combining GA3 with 22S,23S-homobrassinolide.
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Claims 3
Claim · model-written summary
Pollen germination of cultivar Italia was not influenced by the treatments, with a highest germination ratio of 44.4% from epibrassinolide.
- Taxon
- Vitis vinifera L.
Vitis viniferae0 - Material
- Italiae1
- Treatment
- 0.001 mg L-1 epibrassinolidee1
- Outcome
- germination ratioe1
- Direction
- not influencede1
- Value
- 44.4%e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two table grape cultivars, ‘Italia’ and ‘Cardinal’ (Vitis vinifera L.)”
e1“The cultivar ‘Italia’ was not influenced by the treatments (the highest germination ratio being 44.4% from 0.001 mg L-1 epibrassinolide) as opposed to the cultivar ‘Cardinal’”
Claim · model-written summary
Pollen of cultivar Cardinal treated with 25 mg L-1 GA3 and 0.01 mg L-1 epibrassinolide had the highest germination ratio, about 50%, against 32.38% in the control.
- Taxon
- Vitis vinifera L.Vitis viniferae0
- Material
- Cardinale2
- Treatment
- pollens treated with 25 mg L-1 GA3 + 0.01 mg L-1 epibrassinolidee2
- Outcome
- germination ratioe2
- Direction
- higheste2
- Value
- about 50%e2
- Comparator
- control groupe3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two table grape cultivars, ‘Italia’ and ‘Cardinal’ (Vitis vinifera L.)”
e2“The highest germination ratio in ‘Cardinal’ was about 50% in pollens treated with 25 mg L-1 GA3 + 0.01 mg L-1 epibrassinolide”
e3“The control group resulted in 32.38% germination”
Claim · model-written summary
Combining GA3 with epibrassinolide gave slightly higher pollen germination ratios than combining GA3 with 22S,23S-homobrassinolide in grapevine.
- Treatment
- Combining GA3 with epibrassinolidee4
- Outcome
- germination ratiose4
- Direction
- slightly highere4
- Comparator
- combining GA3 with 22S,23S-homobrassinolidee4
VitisOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pollen germination in grapevine”
e4“Combining GA3 with epibrassinolide provided slightly higher germination ratios compared to combining GA3 with 22S,23S-homobrassinolide”
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See all 10 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.