Abstract
Abstract Synthetic seed coats were applied to asexual embryos of carrot ( Daucus carota L.) by mixing equal volumes of embryo suspension and a 5% (w/v) solution of polyethylene oxide (Polyox WSR-N 750) and dispensing 0.2 ml drops of this mixture onto teflon sheets. Drops dried to form detachable wafers consisting of embryo suspension embedded in Polyox. Embryo survival after drying was determined by redissolving wafers in embryogenic medium and culturing the rehydrated embryo suspension on filter paper supports in petri dishes for 2-3 weeks. When dried to constant weight (6.5 hr) 3% of asexual embryos coated with 2.5% Polyox survived encapsulation, whereas survival of uncoated embryos was nil. Pretreating the embryogenic suspension with 10 −6 m abscisic acid (ABA) during the 14 day embryo induction phase increased coated embryo survival to 40% of the initial number of embryos.
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Claims 2
Claim · model-written summary
Polyox-coated carrot embryos had 3% survival after drying versus nil for uncoated embryos.
- Taxon
- Carrot
Daucus carotat0 - Treatment
- 2.5% Polyoxe0
- Outcome
- asexual embryos coated with 2.5% Polyox survived encapsulatione0
- Direction
- survivede0
- Value
- 3%e0
- Qualifier
- survival of uncoated embryos was nile0
- Comparator
- uncoated embryose0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When dried to constant weight (6.5 hr) 3% of asexual embryos coated with 2.5% Polyox survived encapsulation, whereas survival of uncoated embryos was nil”
t0“Carrot”
Claim · model-written summary
ABA pretreatment increased coated embryo survival to 40%.
- Taxon
- CarrotDaucus carotat0
- Treatment
- 10 −6 m abscisic acid (ABA)e0
- Outcome
- coated embryo survivale0
- Direction
- increasede0
- Value
- 40%e0
- Qualifier
- during the 14 day embryo induction phasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pretreating the embryogenic suspension with 10 −6 m abscisic acid (ABA) during the 14 day embryo induction phase increased coated embryo survival to 40% of the initial number of embryos”
t0“Carrot”
The same questions in other papers
(+)-abscisic acid · survival · Daucus carota (carrot)Positive and negative results
1 in the opposite direction
- negative
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.