Abstract
Effects of nitrogen on the leaf chlorophyll (chl), yield and yield attributing characters of potato as tuber number and mean tuber weight were studied. Correlation coefficients between the investigated characters were determined. Five nitrogen rates (0, 150, 200, 250 and 300 kg/ha) and four potato cultivars (Burren, Slaney, Anna and Emma) were used in the study. First, second, third class tuber yields and total tuber yield, tuber number per plant, and leaf chl were significantly influenced by both nitrogen rate and cultivar, whereas mean tuber weight was affected only by cultivar. Maximum total yield was obtained at 200 kg N/ha. There was significant linear relationship between leaf chl and N applied (R2=0.91). There were significant correlations between chl and yield and yield related characters. Total yield significantly correlated with leaf chl. Correlations between first class yield and total yield as well as total yield and tuber number per plant were highly significant. Key words: Potato; Solanum tuberosum L.; Leaf chlorophyll; Nitrogen; Yield DOI: 10.3329/bjb.v38i2.5141 Bangladesh J. Bot. 38(2): 163-169, 2009 (December)
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Claims 8
Claim · model-written summary
Nitrogen rate and cultivar significantly influenced tuber yields, tuber number and leaf chlorophyll.
- Taxon
- potato
Solanum tuberosumt0 - Material
- cultivare0
- Treatment
- nitrogen ratee0
- Outcome
- First, second, third class tuber yields and total tuber yield, tuber number per plant, and leaf chle0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“First, second, third class tuber yields and total tuber yield, tuber number per plant, and leaf chl were significantly influenced by both nitrogen rate and cultivar”
t0“potato”
Claim · model-written summary
Mean tuber weight was affected only by cultivar.
- Taxon
- potatoSolanum tuberosumt0
- Material
- cultivare0
- Outcome
- mean tuber weighte0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mean tuber weight was affected only by cultivar”
t0“potato”
Claim · model-written summary
Total yield was maximum at 200 kg N/ha.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- 200 kg N/hae0
- Outcome
- total yielde0
- Direction
- Maximume0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Maximum total yield was obtained at 200 kg N/ha”
t0“potato”
Claim · model-written summary
Leaf chlorophyll had a significant linear relationship with applied nitrogen.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- N appliede0
- Outcome
- leaf chle0
- Value
- R2=0.91e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was significant linear relationship between leaf chl and N applied (R2=0.91)”
t0“potato”
Claim · model-written summary
Chlorophyll correlated significantly with yield and yield-related characters.
- Taxon
- potatoSolanum tuberosumt0
- Organ / stage
- chle0
- Outcome
- yield and yield related characterse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There were significant correlations between chl and yield and yield related characters”
t0“potato”
Claim · model-written summary
Total yield correlated significantly with leaf chlorophyll.
- Taxon
- potatoSolanum tuberosumt0
- Organ / stage
- leaf chle0
- Outcome
- Total yielde0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total yield significantly correlated with leaf chl”
t0“potato”
Claim · model-written summary
First-class and total yield correlated highly significantly.
- Taxon
- potatoSolanum tuberosumt0
- Outcome
- first class yielde0
- Comparator
- total yielde0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Correlations between first class yield and total yield as well as total yield and tuber number per plant were highly significant”
t0“potato”
Claim · model-written summary
Total yield and tuber number per plant correlated highly significantly.
- Taxon
- potatoSolanum tuberosumt0
- Outcome
- total yielde0
- Comparator
- tuber number per plante0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Correlations between first class yield and total yield as well as total yield and tuber number per plant were highly significant”
t0“potato”
The same questions in other papers
nitrogen · yield · Solanum tuberosum (potato)Results differ
108 papers in the same direction as this paper · 20 in the opposite direction · 3 reporting no difference from an alternative
- positive
- positive
- no effect
128 papers more in this group
See all 132 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.