Abstract
In order to determine the best planting time for tobacco culture in the district of Okinawa, tobacco (flue-cured tobacco variety, SC72) was planted at three different days (on January 10, 30 and February 20), and investigated about number of total leaves, growth process, yield and price per kg of the flue-cured caves, etc. in Miyako Is., the representative district of tobacco leaves-production area in Okinawa in 1976. The results were obtained as follows; 1. There was a tendency for number of total leaves to decrease as the planting time was advanced; 27.6, 30.8 and 33.0 leaves on tobacco planted on January 10, 30 and February 20, respectively (Table 1). 2. The growth of tobacco planted on January 10 was depressed on account of slightly low temperature and small amount of precipitation in the early stage. In the later stage, this tobacco showed vigorous growth and its prosperous growth was prolonged to the harvesting time. Tobacco planted on February 20 grew vigorously in the early stage, and its rate of dry matter production increased again owing to much amount of precipitation in the harvesting time. The growth process of tobacco planted on January 30 was comparatively moderate (Fig. 3, 4 and Table 3). 3. Width/length ratio of the harvested leaves on lower stalk position decreased as the planting time was advanced (Fig. 7). 4. The area of the harvested leaves was greater on each stalk position of tobacco planted on February 20 than that on the comparable stalk position of tobacco planted on January 10 or January 30, though there was not such a difference between tobacco planted on January 10 and that planted on January 30 (Fig. 7). 5. But, in dry leaf weight per unit leaf area of harvested leaves, tobacco planted on February 20 was not superior to tobacco planted on other day. On the contrary, the upper leaves of this tobacco were apparently inferior to those of tobacco planted on January 30 in dry leaf weight per unit leaf area. There was similar difference at the upper leaves between tobacco planted on January 10 and that planted on January 30. These results may indicate that the upper leaves harvested from tobacco planted on January 10 or February 20 seemed to be a little immature, in comparison with those harvested from tobacco planted on January 30 (Fig. 8). 6. Yield of the flue-cured leaves per 10a increased as the planting time was retarded, i.e., 269.0 kg, 282.8 kg and 363.3 kg in the plots planted on January 10, 30 and February 20, respectively. However, in the price per kg of cured leaves, the plot planted on Fcbruary 20 was inferior to other plots. The highest price per kg of cured leaves was gained in the plot planted on January 30 (Table 4). Judging from the results mentioned above, it is concluded that the last 10 day-period of January seems to be the best planting time for tobacco culture in Miyako Is. and the district near this island.
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Claims 17
Claim · model-written summary
Total leaf number tended to decrease as later planting dates were used, with 27.6, 30.8 and 33.0 leaves for the January 10, January 30 and February 20 plantings.
- Taxon
- tobacco
Nicotiana tabacume1 - Treatment
- planting time was advancede1
- Outcome
- number of total leavese1
- Direction
- decreasee1
- Value
- 27.6, 30.8 and 33.0 leavese1
- Qualifier
- tendencye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“There was a tendency for number of total leaves to decrease as the planting time was advanced; 27.6, 30.8 and 33.0 leaves on tobacco planted on January 10, 30 and February 20, respectively (Table 1)”
Claim · model-written summary
Width/length ratio of the harvested leaves on the lower stalk position decreased as later planting dates were used.
- Taxon
- tobaccoNicotiana tabacume0
- Organ / stage
- harvested leaves on lower stalk positione1
- Treatment
- planting time was advancede1
- Outcome
- Width/length ratioe1
- Direction
- decreasede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tobacco (flue-cured tobacco variety, SC72)”
e1“Width/length ratio of the harvested leaves on lower stalk position decreased as the planting time was advanced”
Claim · model-written summary
The area of harvested leaves was greater at each stalk position for tobacco planted on February 20 than for tobacco planted on January 10 or January 30.
- Taxon
- tobaccoNicotiana tabacume1
- Treatment
- planted on February 20e1
- Outcome
- area of the harvested leavese1
- Direction
- greatere1
- Comparator
- planted on January 10 or January 30e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The area of the harvested leaves was greater on each stalk position of tobacco planted on February 20 than that on the comparable stalk position of tobacco planted on January 10 or January 30”
Claim · model-written summary
Harvested leaf area did not clearly differ between tobacco planted on January 10 and tobacco planted on January 30.
- Taxon
- tobaccoNicotiana tabacume1
- Treatment
- planted on January 10e1
- Outcome
- area of the harvested leavese2
- Direction
- not such a differencee1
- Comparator
- planted on January 30e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“though there was not such a difference between tobacco planted on January 10 and that planted on January 30”
e2“The area of the harvested leaves”
Claim · model-written summary
Dry leaf weight per unit leaf area of harvested leaves was not superior for tobacco planted on February 20 compared with tobacco planted on other dates.
- Taxon
- tobaccoNicotiana tabacume1
- Treatment
- planted on February 20e1
- Outcome
- dry leaf weight per unit leaf area of harvested leavese1
- Direction
- not superiore1
- Comparator
- planted on other daye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“in dry leaf weight per unit leaf area of harvested leaves, tobacco planted on February 20 was not superior to tobacco planted on other day”
Claim · model-written summary
Upper leaves of tobacco planted on February 20 were apparently inferior in dry leaf weight per unit leaf area to those of tobacco planted on January 30.
- Taxon
- tobaccoNicotiana tabacume1
- Organ / stage
- upper leavese1
- Treatment
- planted on February 20e2
- Outcome
- dry leaf weight per unit leaf areae1
- Direction
- inferiore1
- Qualifier
- apparentlye1
- Comparator
- tobacco planted on January 30e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the upper leaves of this tobacco were apparently inferior to those of tobacco planted on January 30 in dry leaf weight per unit leaf area”
e2“tobacco planted on February 20 was not superior to tobacco planted on other day”
Claim · model-written summary
Upper-leaf dry weight per unit leaf area showed a similar difference for tobacco planted on January 10 compared with January 30.
- Taxon
- tobaccoNicotiana tabacume1
- Organ / stage
- upper leavese1
- Treatment
- planted on January 10e1
- Outcome
- dry leaf weight per unit leaf areae2
- Direction
- similar differencee1
- Comparator
- planted on January 30e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“There was similar difference at the upper leaves between tobacco planted on January 10 and that planted on January 30”
e2“the upper leaves of this tobacco were apparently inferior to those of tobacco planted on January 30 in dry leaf weight per unit leaf area”
Claim · model-written summary
Upper leaves from tobacco planted on January 10 or February 20 may be slightly immature compared with those from January 30.
- Taxon
- tobaccoNicotiana tabacume1
- Organ / stage
- upper leavese1
- Treatment
- planted on January 10 or February 20e1
- Outcome
- immaturee1
- Comparator
- planted on January 30e1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“These results may indicate that the upper leaves harvested from tobacco planted on January 10 or February 20 seemed to be a little immature, in comparison with those harvested from tobacco planted on January 30”
Claim · model-written summary
Yield of flue-cured leaves per 10a increased as the planting time was retarded, from 269.0 kg to 363.3 kg across the January 10, January 30 and February 20 plots.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- planting time was retardede1
- Outcome
- Yield of the flue-cured leaves per 10ae1
- Direction
- increasede1
- Value
- 269.0 kg, 282.8 kg and 363.3 kge1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tobacco (flue-cured tobacco variety, SC72)”
e1“Yield of the flue-cured leaves per 10a increased as the planting time was retarded, i.e., 269.0 kg, 282.8 kg and 363.3 kg in the plots planted on January 10, 30 and February 20, respectively”
Claim · model-written summary
Price per kg of cured leaves was inferior for the February 20 planting compared with the other plots.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- plot planted on Fcbruary 20e1
- Outcome
- price per kg of cured leavese1
- Direction
- inferiore1
- Comparator
- other plotse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tobacco (flue-cured tobacco variety, SC72)”
e1“in the price per kg of cured leaves, the plot planted on Fcbruary 20 was inferior to other plots”
Claim · model-written summary
The highest price per kg of cured leaves was obtained from the January 30 planting.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- plot planted on January 30e1
- Outcome
- price per kg of cured leavese1
- Direction
- higheste1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tobacco (flue-cured tobacco variety, SC72)”
e1“The highest price per kg of cured leaves was gained in the plot planted on January 30”
Claim · model-written summary
The last 10-day period of January is the best planting time for tobacco culture in Miyako Island.
- Taxon
- tobaccoNicotiana tabacume1
- Treatment
- the last 10 day-period of Januarye1
- Outcome
- best planting timee1
- Setting
- Miyako Is.e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the last 10 day-period of January seems to be the best planting time for tobacco culture in Miyako Is.”
Claim · model-written summary
Growth of tobacco planted on January 10 was depressed in the early stage, attributed to slightly low temperature and small precipitation.
- Taxon
- tobaccoNicotiana tabacume1
- Organ / stage
- in the early stagee1
- Treatment
- planted on January 10e1
- Outcome
- growthe1
- Direction
- depressede1
- Qualifier
- slightly low temperature and small amount of precipitatione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The growth of tobacco planted on January 10 was depressed on account of slightly low temperature and small amount of precipitation in the early stage”
Claim · model-written summary
Tobacco planted on January 10 showed vigorous growth in the later stage, which was prolonged to harvest.
- Taxon
- tobaccoNicotiana tabacume1
- Organ / stage
- later stagee1
- Treatment
- planted on January 10e2
- Outcome
- growthe1
- Direction
- vigorouse1
- Qualifier
- prolonged to the harvesting timee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“In the later stage, this tobacco showed vigorous growth and its prosperous growth was prolonged to the harvesting time”
e2“The growth of tobacco planted on January 10”
Claim · model-written summary
Tobacco planted on February 20 grew vigorously in the early stage.
- Taxon
- TobaccoNicotiana tabacume1
- Organ / stage
- in the early stagee1
- Treatment
- planted on February 20e1
- Outcome
- growthe2
- Direction
- vigorouslye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Tobacco planted on February 20 grew vigorously in the early stage”
e2“The growth of tobacco planted on January 10”
Claim · model-written summary
Dry matter production rate of tobacco planted on February 20 increased again, owing to heavy precipitation at harvest.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- planted on February 20e2
- Outcome
- rate of dry matter productione1
- Direction
- increased againe1
- Qualifier
- owing to much amount of precipitation in the harvesting timee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tobacco (flue-cured tobacco variety, SC72)”
e1“its rate of dry matter production increased again owing to much amount of precipitation in the harvesting time”
e2“Tobacco planted on February 20 grew vigorously in the early stage”
Claim · model-written summary
Growth process of tobacco planted on January 30 was comparatively moderate.
- Taxon
- tobaccoNicotiana tabacume1
- Treatment
- planted on January 30e1
- Outcome
- growth processe1
- Direction
- comparatively moderatee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The growth process of tobacco planted on January 30 was comparatively moderate”
The same questions in other papers
sowing time · growth · Nicotiana tabacum (tobacco)Positive and negative results
5 papers in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- negative
4 papers more in this group
See all 8 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.