Abstract
SUMMARY The physiological basis for responses to daylength of a photoperiod sensitive groundnut genotype (NC Ac 17090) was investigated by comparing its growth and development in natural daylength with that in an artificially manipulated photoperiod in three field experiments. Photoperiod did not influence the thermal time to flowering, or the subsequent appearance of flowers until 900–950 flowers m −2 had appeared. Thereafter flowers continued to appear in short, but not in long, days. In each experiment, long days increased the thermal time between the initiation of each peg and pod, and the thermal time required for each fruit to mature. These fruit initiation and developmental changes were reflected in the partitioning of assimilates to pods, this being substantially less in long days than in short. Changes in pod initiation rate, partitioning co-efficient, and the thermal time taken for a pod to mature were related to mean daylength.
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Claims 6
Claim · model-written summary
Photoperiod did not influence the thermal time to flowering of groundnut relative to natural daylength.
- Taxon
- groundnut
Arachis hypogaeat0 - Treatment
- artificially manipulated photoperiode0
- Outcome
- thermal time to floweringe1
- Direction
- did not influencee1
- Comparator
- natural daylengthe0
- Setting
- three field experimentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Groundnut (Arachis hypogaea L.) Cv. NC Ac 17090”
e0“comparing its growth and development in natural daylength with that in an artificially manipulated photoperiod in three field experiments”
e1“Photoperiod did not influence the thermal time to flowering”
Claim · model-written summary
Groundnut flowers continued to appear in short days but not in long days.
- Taxon
- groundnutArachis hypogaeat0
- Treatment
- shorte2
- Outcome
- flowerse2
- Direction
- continued to appeare2
- Comparator
- longe2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Groundnut (Arachis hypogaea L.) Cv. NC Ac 17090”
e2“Thereafter flowers continued to appear in short, but not in long, days”
Claim · model-written summary
Long days increased the thermal time between pod initiation and pod formation in groundnut.
- Taxon
- groundnutArachis hypogaeat0
- Treatment
- long dayse3
- Outcome
- thermal time between the initiation of each peg and pode3
- Direction
- increasede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Groundnut (Arachis hypogaea L.) Cv. NC Ac 17090”
e3“In each experiment, long days increased the thermal time between the initiation of each peg and pod, and the thermal time required for each fruit to mature”
Claim · model-written summary
Long days increased the thermal time required for each groundnut fruit to mature.
- Taxon
- groundnutArachis hypogaeat0
- Treatment
- long dayse3
- Outcome
- thermal time required for each fruit to maturee3
- Direction
- increasede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Groundnut (Arachis hypogaea L.) Cv. NC Ac 17090”
e3“In each experiment, long days increased the thermal time between the initiation of each peg and pod, and the thermal time required for each fruit to mature”
Claim · model-written summary
Partitioning of assimilates to pods was substantially lower in long days than in short days in groundnut.
- Taxon
- groundnutArachis hypogaeat0
- Treatment
- long dayse4
- Outcome
- partitioning of assimilates to podse4
- Direction
- substantially lesse4
- Comparator
- shorte4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Groundnut (Arachis hypogaea L.) Cv. NC Ac 17090”
e4“the partitioning of assimilates to pods, this being substantially less in long days than in short”
Claim · model-written summary
Pod initiation rate, partitioning coefficient and thermal time to pod maturity in groundnut were related to mean daylength.
- Taxon
- groundnutArachis hypogaeat0
- Treatment
- mean daylengthe5
- Outcome
- pod initiation rate, partitioning co-efficient, and the thermal time taken for a pod to maturee5
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Groundnut (Arachis hypogaea L.) Cv. NC Ac 17090”
e5“Changes in pod initiation rate, partitioning co-efficient, and the thermal time taken for a pod to mature were related to mean daylength”
The same questions in other papers
light · phenology · Arachis hypogaea (peanut)Positive and negative results
2 papers in the same direction as this paper · 1 reporting no difference from an alternative
- positive
- no effect
- 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.