Abstract
The successful development of the young ovules excised separately from placenta soon aLter fertilization has not been obtained in Petunia sp.. This experiment was carried out to find a favourable condition for the in vitro develop-ment of the excised young ovules of Petunia hybrida Vilm. The results are as follow : (1) The medium containing 6% sucrose was most favourable for development of the free ovules excised 4 days after pollination. And also when osmotic value of the medium were adjusted to equivalent to 6% sucrose solution by adding cucumber fruit-juice, the ovules were developed at same rate of the former. Therefore, it is recognized that high osmotic value of the medium act upon the development of young ovules. (2) When the ovules excised 3 days after pollination were inoculated, the most favourable bsmotic value of a medium was equivalent to 8% sucrose solution which was higher than one L0r culturing the ovules excised 4 days aLter pollination. Moreover, it was observed that the range of osmotic value for culturing younger ovules was narrow than that for older one. Therefore, it is recognized the osmotic value of medium affects more remarkably the development of younger ovules.
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Claims 4
Claim · model-written summary
Medium with 6% sucrose was most favourable for development of ovules excised four days after pollination.
- Taxon
- Petunia hybrida Vilm.
Petunia ×hybridat0 - Organ / stage
- free ovulese0
- Treatment
- medium containing 6% sucrosee0
- Outcome
- development of the free ovulese0
- Direction
- most favourablee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The medium containing 6% sucrose was most favourable for development of the free ovules excised 4 days after pollination”
t0“Petunia hybrida Vilm.”
Claim · model-written summary
Cucumber fruit-juice adjusted to an equivalent osmotic value gave the same ovule development rate.
- Taxon
- Petunia hybrida Vilm.Petunia ×hybridat0
- Treatment
- adding cucumber fruit-juicee0
- Outcome
- ovules were developede0
- Direction
- same ratee0
- Comparator
- 6% sucrose solutione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“when osmotic value of the medium were adjusted to equivalent to 6% sucrose solution by adding cucumber fruit-juice, the ovules were developed at same rate of the former”
t0“Petunia hybrida Vilm.”
Claim · model-written summary
For ovules excised three days after pollination, optimum osmotic value was equivalent to 8% sucrose, higher than for four-day ovules.
- Taxon
- Petunia hybrida Vilm.Petunia ×hybridat0
- Organ / stage
- ovulese0
- Outcome
- bsmotic value of a mediume0
- Direction
- highere0
- Value
- 8% sucrosee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the most favourable bsmotic value of a medium was equivalent to 8% sucrose solution which was higher than one L0r culturing the ovules excised 4 days aLter pollination”
t0“Petunia hybrida Vilm.”
Claim · model-written summary
Younger ovules had a narrower culturable osmotic range than older ovules.
- Taxon
- Petunia hybrida Vilm.Petunia ×hybridat0
- Organ / stage
- younger ovulese0
- Outcome
- range of osmotic valuee0
- Direction
- narrowe0
- Comparator
- older onee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the range of osmotic value for culturing younger ovules was narrow than that for older one”
t0“Petunia hybrida Vilm.”
The same questions in other papers
sucrose · growth · Petunia x hybrida (garden petunia)Results agree
2 papers in the same direction as this paper
- positive
- positive
in vitro · growth · Petunia x hybrida (garden petunia)Positive and negative results
7 papers in the same direction as this paper · 2 in the opposite direction
- negative
- no effect
- positive
6 papers more in this group
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.