Abstract
Because of increasing interest in hybrid cotton, Gossypium hirsutum L. a study was made in southern Arizona in 1973 and 1974 to determine a planting pattern of pollinator and male‐sterile rows that would give satisfactory yields of hybrid seed. In 1973 two rows of pollen plants were alternated with 14 rows of male‐sterile plants. The two male‐sterile rows closest to the pollen plants produced 49% more seeds per flower than were produced in the remaining male‐sterile rows. In 1974 an alternating pattern of 2 rows of pollen parents and 6 rows of male‐sterile parents was planted in 12 replications. There were no significant differences in number of seeds produced per flower among these male‐sterile rows. In both years the seeds were a higher percentage of the total boll weight in bolls from the male sterile plants than in bolls from the pollen plants (68.2 to 60.6 in 1973 and 68.2 to 62.0 in 1974). In both years production of hybrid seed was satisfactory. The male‐sterile plants produced 98% and 79% as many seeds per flower as the pollen plants in 1973 and 1974, respectively. The mean number of bees observed visiting cotton flowers at any given time varied from 0.45 to 10.13 per 100 flowers. Honey bees ( Apis mellifera L.) made 38% of the total bee visits in 1973 and 84% in 1974.
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Claims 8
Claim · model-written summary
In 1973, the two male-sterile rows closest to the pollen plants produced 49% more seeds per flower than the remaining male-sterile rows.
- Taxon
- Gossypium hirsutum
Gossypium hirsutume0 - Treatment
- closest to the pollen plantse1
- Outcome
- seeds per flowere1
- Direction
- moree1
- Value
- 49%e1
- Comparator
- remaining male‐sterile rowse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Gossypium hirsutum L.”
e1“The two male‐sterile rows closest to the pollen plants produced 49% more seeds per flower than were produced in the remaining male‐sterile rows”
Claim · model-written summary
In 1974, the male-sterile rows did not differ significantly in seeds produced per flower.
- Taxon
- Gossypium hirsutumGossypium hirsutume0
- Treatment
- alternating patterne3
- Outcome
- number of seeds produced per flowere2
- Direction
- no_changeinferrede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Gossypium hirsutum L.”
e2“There were no significant differences in number of seeds produced per flower among these male‐sterile rows”
e3“an alternating pattern of 2 rows of pollen parents and 6 rows of male‐sterile parents”
Claim · model-written summary
Seeds made a higher percentage of total boll weight in bolls from male-sterile plants than in bolls from pollen plants.
- Taxon
- Gossypium hirsutumGossypium hirsutume0
- Treatment
- male sterile plantse4
- Outcome
- percentage of the total boll weighte4
- Direction
- highere4
- Value
- 68.2 to 60.6 in 1973 and 68.2 to 62.0 in 1974e5
- Comparator
- bolls from the pollen plantse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Gossypium hirsutum L.”
e4“In both years the seeds were a higher percentage of the total boll weight in bolls from the male sterile plants than in bolls from the pollen plants”
e5“(68.2 to 60.6 in 1973 and 68.2 to 62.0 in 1974)”
Claim · model-written summary
Male-sterile plants produced 98% and 79% as many seeds per flower as pollen plants in 1973 and 1974.
- Taxon
- Gossypium hirsutumGossypium hirsutume0
- Treatment
- male‐sterile plantse6
- Outcome
- seeds per flowere6
- Direction
- as manye6
- Value
- 98% and 79%e6
- Comparator
- pollen plantse6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Gossypium hirsutum L.”
e6“The male‐sterile plants produced 98% and 79% as many seeds per flower as the pollen plants in 1973 and 1974, respectively”
Claim · model-written summary
Bees visited cotton flowers at a mean of 0.45 to 10.13 visits per 100 flowers.
- Taxon
- Gossypium hirsutumGossypium hirsutume0
- Interactor
- beesAnthophilae7pollinator
- Outcome
- mean number of bees observed visiting cotton flowerse7
- Value
- 0.45 to 10.13 per 100 flowerse7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Gossypium hirsutum L.”
e7“The mean number of bees observed visiting cotton flowers at any given time varied from 0.45 to 10.13 per 100 flowers”
Claim · model-written summary
Honey bees made 38% of total bee visits in 1973.
- Taxon
- Gossypium hirsutumGossypium hirsutume0
- Interactor
- Apis mellifera
_Apis_mellifera_(female)_-_on_viburnum_tinus_flowers.jpg?width=60)
Apis melliferae7pollinator - Outcome
- total bee visitse6
- Value
- 38%e6
- Qualifier
- in 1973e6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Apis_mellifera_(female)_-_on_viburnum_tinus_flowers.jpg?width=500)
Verbatim
e0“Gossypium hirsutum L.”
e6“made 38% of the total bee visits in 1973”
e7“Apis mellifera L.”
Claim · model-written summary
Honey bees made 84% of total bee visits in 1974.
- Taxon
- Gossypium hirsutumGossypium hirsutume0
- Interactor
- Apis melliferaApis melliferae7pollinator
- Outcome
- total bee visitse6
- Value
- 84%e5
- Qualifier
- in 1974e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Gossypium hirsutum L.”
e6“made 38% of the total bee visits in 1973”
e7“Apis mellifera L.”
e5“and 84% in 1974”
Claim · model-written summary
Hybrid seed production was satisfactory in both years.
- Taxon
- Gossypium hirsutumGossypium hirsutume0
- Outcome
- production of hybrid seede6
- Qualifier
- satisfactorye6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Gossypium hirsutum L.”
e6“In both years production of hybrid seed was satisfactory”
The same questions in other papers
maleate(2-) · yield · Gossypium hirsutum (cotton)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
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.