Abstract
Abstract Intensive breeding programmes have been carried out to obtain high‐quality seedless grape cultivars. Seedless grape cultivars were used as pollinizer parents, but the number of hybrid seeds and the viability of the seed obtained could differ greatly. In this study, carried out over 3 years, the results obtained from crossing with some pollinizer cultivars belonging to different Vitis species were compared. Maternal cultivars that do not need emasculation (male sterile) and emasculated cultivars were also compared. Evaluations were based on the total number of hybrid seeds and the proportion of viable seeds. In addition, the effects of various treatments on the rates of germination of the hybrid seed were compared. Although the female parents (with female flower structure) produced more seed than did hermaphrodite mothers in 2019, different results were obtained in cross‐breeding studies in 2018 and 2020. Cold stratification was very effective in increasing germination by breaking dormancy of the hybrid seed. In addition, after treatment of cold moist storage (cold stratification), keeping the seed in distilled water overnight before planting increased germination. Although large numbers of seeds were produced by the genotype 86/1 and the cultivar ‘Beyaz Çavuş’, both of which do not require emasculation, many of these seeds did not germinate. Crosses with the cultivar ‘Red Globe’ as the maternal parent produced large numbers of viable seeds and high germination rates.
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Claims 8
Claim · model-written summary
Female parents with female flower structure produced more seed than hermaphrodite mothers in 2019, with different results in 2018 and 2020.
Verbatim
t0“grape”
e1“Although the female parents (with female flower structure) produced more seed than did hermaphrodite mothers in 2019, different results were obtained in cross‐breeding studies in 2018 and 2020”
Claim · model-written summary
Cold stratification was very effective in increasing germination of the hybrid seed by breaking dormancy.
Not reportedComparator
Verbatim
t0“grape”
e2“Cold stratification was very effective in increasing germination by breaking dormancy of the hybrid seed”
Claim · model-written summary
Keeping the seed in distilled water overnight before planting increased germination after cold moist storage.
- Taxon
- grapet0
- Treatment
- keeping the seed in distilled water overnight before plantinge3
- Outcome
- germinatione3
- Direction
- increasede3
Not reportedComparator
Verbatim
t0“grape”
e3“keeping the seed in distilled water overnight before planting increased germination”
Claim · model-written summary
Genotype 86/1 produced large numbers of seeds in crosses without emasculation.
Verbatim
t0“grape”
e4“large numbers of seeds were produced by the genotype 86/1”
Claim · model-written summary
Many seeds from genotype 86/1 did not germinate.
Verbatim
t0“grape”
e5“the genotype 86/1 and the cultivar ‘Beyaz Çavuş’, both of which do not require emasculation, many of these seeds did not germinate”
Claim · model-written summary
Cultivar Beyaz Çavuş produced large numbers of seeds in crosses without emasculation.
Verbatim
t0“grape”
e6“large numbers of seeds were produced by the genotype 86/1 and the cultivar ‘Beyaz Çavuş’”
Claim · model-written summary
Many seeds from cultivar Beyaz Çavuş did not germinate.
Verbatim
t0“grape”
e5“the genotype 86/1 and the cultivar ‘Beyaz Çavuş’, both of which do not require emasculation, many of these seeds did not germinate”
Claim · model-written summary
Crosses with Red Globe as maternal parent produced large numbers of viable seeds and high germination rates.
Verbatim
t0“grape”
e6“Crosses with the cultivar ‘Red Globe’ as the maternal parent produced large numbers of viable seeds and high germination rates”
The same questions in other papers
seed treatment · growth · VitisPositive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
cold · growth · VitisPositive and negative results
7 papers in the same direction as this paper · 2 in the opposite direction · 2 reporting no difference from an alternative
- negative
- negative
- no effect
8 papers more in this group
See all 12 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.