Abstract

Abstract Spanish-type C2 and virginia-type NC 4 peanut plants were compared in 9H (9 hours light phase and 15 hours dark phase) and 9H + 3 (9 hours light phase with 15 hours dark phase interrupted with 3 hours of low intensity light) photoperiods. C2 tended to produce greater plant weights and increased numbers of flowers in long-day treatments when compared to short-day treatments but peg growth, fruit per flowers, fruits per plant, and seed weights were drastically reduced in 9H + 3 photoperiods. NC 4, on the contrary, had only slight reductions in reproductive efficiency when exposed to long days. C2 plants produce more early flowers, less pegs per flower, but more fruit per peg than NC 4 plants in 9H photoperiods. F1 plants from crosses between C2 and NC 4 had approximately the same plant weights as the NC 4 parent, but significantly greater reproductive efficiency than the virginia-type parent when grown in 9H light treatments. Neither the position of the peg on the plant nor the light treatment of the maternal parent appeared to influence peg growth on F1 plants. Significant differences in the growth of pegs bearing F1 embryos from reciprocal crosses were noted, however. F2 plants were selected from 9H, 9H + 3, and 15H light treatments which produced more virginia-type fruits and more pegs per early flower than the NC 4 (virginia-type) parent.

Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗

The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 17

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

C2 tended toward greater plant weight under long days than short days.

Material
C2e0
Treatment
long-day treatmentse0
Outcome
plant weightse0
Direction
greatere0
Comparator
short-day treatmentse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“C2 tended to produce greater plant weights and increased numbers of flowers in long-day treatments when compared to short-day treatments”

✓ located verbatim in the source · abstract, characters 248–384 · show in text ↑
t0

“Reproductive Efficiency of Cultivated Peanuts. V. Response of Parental and Virginia (NC 4) x Spanish (C2) Hybrid Families to Changes in Photoperiod1”

✓ located verbatim in the source · title, characters 0–148 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

C2 tended toward more flowers under long days than short days.

Material
C2e0
Treatment
long-day treatmentse0
Outcome
numbers of flowerse0
Direction
increasede0
Comparator
short-day treatmentse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“C2 tended to produce greater plant weights and increased numbers of flowers in long-day treatments when compared to short-day treatments”

✓ located verbatim in the source · abstract, characters 248–384 · show in text ↑
t0

“Reproductive Efficiency of Cultivated Peanuts. V. Response of Parental and Virginia (NC 4) x Spanish (C2) Hybrid Families to Changes in Photoperiod1”

✓ located verbatim in the source · title, characters 0–148 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

C2 peg growth was drastically reduced under 9H + 3.

Material
C2t0
Treatment
9H + 3 photoperiodse0
Outcome
peg growthe0
Direction
reducede0
Comparator
9He0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“peg growth, fruit per flowers, fruits per plant, and seed weights were drastically reduced in 9H + 3 photoperiods”

✓ located verbatim in the source · abstract, characters 389–502 · show in text ↑
t0

“Reproductive Efficiency of Cultivated Peanuts. V. Response of Parental and Virginia (NC 4) x Spanish (C2) Hybrid Families to Changes in Photoperiod1”

✓ located verbatim in the source · title, characters 0–148 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

C2 fruit per flower was drastically reduced under 9H + 3.

Material
C2t0
Treatment
9H + 3 photoperiodse0
Outcome
fruit per flowerse0
Direction
reducede0
Comparator
9He0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“peg growth, fruit per flowers, fruits per plant, and seed weights were drastically reduced in 9H + 3 photoperiods”

✓ located verbatim in the source · abstract, characters 389–502 · show in text ↑
t0

“Reproductive Efficiency of Cultivated Peanuts. V. Response of Parental and Virginia (NC 4) x Spanish (C2) Hybrid Families to Changes in Photoperiod1”

✓ located verbatim in the source · title, characters 0–148 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

C2 fruits per plant were drastically reduced under 9H + 3.

Material
C2t0
Treatment
9H + 3 photoperiodse0
Outcome
fruits per plante0
Direction
reducede0
Comparator
9He0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“peg growth, fruit per flowers, fruits per plant, and seed weights were drastically reduced in 9H + 3 photoperiods”

✓ located verbatim in the source · abstract, characters 389–502 · show in text ↑
t0

“Reproductive Efficiency of Cultivated Peanuts. V. Response of Parental and Virginia (NC 4) x Spanish (C2) Hybrid Families to Changes in Photoperiod1”

✓ located verbatim in the source · title, characters 0–148 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

C2 seed weights were drastically reduced under 9H + 3.

Material
C2t0
Treatment
9H + 3 photoperiodse0
Outcome
seed weightse0
Direction
reducede0
Comparator
9He0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“peg growth, fruit per flowers, fruits per plant, and seed weights were drastically reduced in 9H + 3 photoperiods”

✓ located verbatim in the source · abstract, characters 389–502 · show in text ↑
t0

“Reproductive Efficiency of Cultivated Peanuts. V. Response of Parental and Virginia (NC 4) x Spanish (C2) Hybrid Families to Changes in Photoperiod1”

✓ located verbatim in the source · title, characters 0–148 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

NC 4 showed only slight reproductive efficiency reductions under long days.

Material
NC 4e0
Treatment
long dayse0
Outcome
reproductive efficiencye0
Direction
reductionse0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“NC 4, on the contrary, had only slight reductions in reproductive efficiency when exposed to long days”

✓ located verbatim in the source · abstract, characters 504–606 · show in text ↑
t0

“Reproductive Efficiency of Cultivated Peanuts. V. Response of Parental and Virginia (NC 4) x Spanish (C2) Hybrid Families to Changes in Photoperiod1”

✓ located verbatim in the source · title, characters 0–148 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

C2 produced more early flowers than NC 4 under 9H.

Material
C2e0
Treatment
9H photoperiodse0
Outcome
early flowerse0
Direction
moree0
Comparator
NC 4e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“C2 plants produce more early flowers, less pegs per flower, but more fruit per peg than NC 4 plants in 9H photoperiods”

✓ located verbatim in the source · abstract, characters 608–726 · show in text ↑
t0

“Reproductive Efficiency of Cultivated Peanuts. V. Response of Parental and Virginia (NC 4) x Spanish (C2) Hybrid Families to Changes in Photoperiod1”

✓ located verbatim in the source · title, characters 0–148 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

C2 produced fewer pegs per flower than NC 4 under 9H.

Material
C2e0
Treatment
9H photoperiodse0
Outcome
pegs per flowere0
Direction
lesse0
Comparator
NC 4e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“C2 plants produce more early flowers, less pegs per flower, but more fruit per peg than NC 4 plants in 9H photoperiods”

✓ located verbatim in the source · abstract, characters 608–726 · show in text ↑
t0

“Reproductive Efficiency of Cultivated Peanuts. V. Response of Parental and Virginia (NC 4) x Spanish (C2) Hybrid Families to Changes in Photoperiod1”

✓ located verbatim in the source · title, characters 0–148 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

C2 produced more fruit per peg than NC 4 under 9H.

Material
C2e0
Treatment
9H photoperiodse0
Outcome
fruit per pege0
Direction
moree0
Comparator
NC 4e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“C2 plants produce more early flowers, less pegs per flower, but more fruit per peg than NC 4 plants in 9H photoperiods”

✓ located verbatim in the source · abstract, characters 608–726 · show in text ↑
t0

“Reproductive Efficiency of Cultivated Peanuts. V. Response of Parental and Virginia (NC 4) x Spanish (C2) Hybrid Families to Changes in Photoperiod1”

✓ located verbatim in the source · title, characters 0–148 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

F1 plant weights were approximately equal to NC 4 parent weights.

Material
F1e0
Outcome
plant weightse0
Direction
approximately the samee0
Comparator
NC 4 parente0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“F1 plants from crosses between C2 and NC 4 had approximately the same plant weights as the NC 4 parent”

✓ located verbatim in the source · abstract, characters 728–830 · show in text ↑
t0

“Reproductive Efficiency of Cultivated Peanuts. V. Response of Parental and Virginia (NC 4) x Spanish (C2) Hybrid Families to Changes in Photoperiod1”

✓ located verbatim in the source · title, characters 0–148 · show in text ↑
Observationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

F1 reproductive efficiency was significantly greater than NC 4 under 9H.

Material
F1e1
Treatment
9H light treatmentse0
Outcome
reproductive efficiencye0
Direction
greatere0
Comparator
virginia-type parente0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“significantly greater reproductive efficiency than the virginia-type parent when grown in 9H light treatments”

✓ located verbatim in the source · abstract, characters 836–945 · show in text ↑
e1

“F1 plants from crosses between C2 and NC 4 had approximately the same plant weights as the NC 4 parent”

✓ located verbatim in the source · abstract, characters 728–830 · show in text ↑
t0

“Reproductive Efficiency of Cultivated Peanuts. V. Response of Parental and Virginia (NC 4) x Spanish (C2) Hybrid Families to Changes in Photoperiod1”

✓ located verbatim in the source · title, characters 0–148 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Peg position did not appear to affect F1 peg growth.

Material
F1e0
Organ / stage
position of the peg on the plante0
Outcome
peg growthe0
Direction
Neithere0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“Neither the position of the peg on the plant nor the light treatment of the maternal parent appeared to influence peg growth on F1 plants”

✓ located verbatim in the source · abstract, characters 947–1084 · show in text ↑
t0

“Reproductive Efficiency of Cultivated Peanuts. V. Response of Parental and Virginia (NC 4) x Spanish (C2) Hybrid Families to Changes in Photoperiod1”

✓ located verbatim in the source · title, characters 0–148 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Maternal light treatment did not appear to affect F1 peg growth.

Material
F1e0
Treatment
light treatment of the maternal parente0
Outcome
peg growthe0
Direction
Neithere0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“Neither the position of the peg on the plant nor the light treatment of the maternal parent appeared to influence peg growth on F1 plants”

✓ located verbatim in the source · abstract, characters 947–1084 · show in text ↑
t0

“Reproductive Efficiency of Cultivated Peanuts. V. Response of Parental and Virginia (NC 4) x Spanish (C2) Hybrid Families to Changes in Photoperiod1”

✓ located verbatim in the source · title, characters 0–148 · show in text ↑
Observationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Peg growth differed significantly between reciprocal F1 crosses.

Material
F1e0
Outcome
growth of pegse0
Comparator
reciprocal crossese0

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“Significant differences in the growth of pegs bearing F1 embryos from reciprocal crosses were noted”

✓ located verbatim in the source · abstract, characters 1086–1185 · show in text ↑
t0

“Reproductive Efficiency of Cultivated Peanuts. V. Response of Parental and Virginia (NC 4) x Spanish (C2) Hybrid Families to Changes in Photoperiod1”

✓ located verbatim in the source · title, characters 0–148 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Selected F2 plants produced more virginia-type fruits than NC 4.

Material
F2e0
Treatment
9H, 9H + 3, and 15H light treatmentse0
Outcome
virginia-type fruitse0
Direction
moree0
Comparator
NC 4e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“F2 plants were selected from 9H, 9H + 3, and 15H light treatments which produced more virginia-type fruits and more pegs per early flower than the NC 4 (virginia-type) parent”

✓ located verbatim in the source · abstract, characters 1196–1370 · show in text ↑
t0

“Reproductive Efficiency of Cultivated Peanuts. V. Response of Parental and Virginia (NC 4) x Spanish (C2) Hybrid Families to Changes in Photoperiod1”

✓ located verbatim in the source · title, characters 0–148 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Selected F2 plants produced more pegs per early flower than NC 4.

Material
F2e0
Treatment
9H, 9H + 3, and 15H light treatmentse0
Outcome
pegs per early flowere0
Direction
moree0
Comparator
NC 4e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“F2 plants were selected from 9H, 9H + 3, and 15H light treatments which produced more virginia-type fruits and more pegs per early flower than the NC 4 (virginia-type) parent”

✓ located verbatim in the source · abstract, characters 1196–1370 · show in text ↑
t0

“Reproductive Efficiency of Cultivated Peanuts. V. Response of Parental and Virginia (NC 4) x Spanish (C2) Hybrid Families to Changes in Photoperiod1”

✓ located verbatim in the source · title, characters 0–148 · show in text ↑

light · phenology · Arachis hypogaea (peanut)Positive and negative results

4 papers: 1 positive, 3 negative or no effect

2 papers in the same direction as this paper · 1 in the opposite direction

  1. positive
  2. no effect
  3. no effect
See all 4 papers →

light · yield · Arachis hypogaea (peanut)Positive and negative results

18 papers: 8 positive, 10 negative or no effect

9 papers in the same direction as this paper · 8 in the opposite direction

  1. positive
  2. positive
  3. positive

14 papers more in this group

See all 18 papers →

light · growth · Arachis hypogaea (peanut)Positive and negative results

23 papers: 15 positive, 8 negative or no effect

7 papers in the same direction as this paper · 15 in the opposite direction

  1. positive
  2. positive
  3. positive

19 papers more in this group

See all 23 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.