Abstract
The experiment was conducted under sub-tropical condition during two successive seasons (November-March) of 2017-18 and 2018-19 to investigate the effect of defoliations on morpho- physiological attributes and yield of tomato. The experiment comprised of five levels of defoliation viz., 0 (control), 3, 6, 9 and 12 leaves defoliation from the base out of 17 leaves at the beginning of flowering stage and two widely cultivated varieties viz., TM-110 and TM-135. The plant characters such as leaf area, plant height, number of leaves plant-1, straw weight plant-1, absolute growth rate, number of fruits plant-1, individual fruit weight and fruit yield were not affected up to 6 leaves defoliation irrespective of seasons and genotypes. Interestingly, photosynthesis, nitrate reductase and reproductive efficiency increased with increasing defoliation levels. Morpho-physiological parameters and yield attributes were better in 3 and 6 leaves defoliated plants over the control with being the highest in 6 leaves defoliated plant, which resulting the highest fruit yield. Heavy defoliation not only reduced source sizes but also decreased total sink (fruits) causing lower fruit yields. The lowest morpho-physiological attributes and fruit yield was recorded in 12 leaves defoliated plants. These results indicate that tomato plants can tolerate one-third leaf loss during reproductive stage and the knowledge of which might be essential for maintaining better quality tompato production. SAARC J. Agric., 20(1): 87-96 (2022)
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Claims 10
Claim · model-written summary
Up to six leaves of defoliation did not affect tomato growth and yield traits.
- Taxon
- plante0
- Treatment
- up to 6 leaves defoliatione0
- Outcome
- leaf area, plant height, number of leaves plant-1e0
- Direction
- not affectede0
Not reportedComparator
Verbatim
e0“leaf area, plant height, number of leaves plant-1, straw weight plant-1, absolute growth rate, number of fruits plant-1, individual fruit weight and fruit yield were not affected up to 6 leaves defoliation”
Claim · model-written summary
Photosynthesis rose with increasing defoliation.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- increasing defoliation levelse0
- Outcome
- photosynthesise0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“photosynthesis, nitrate reductase and reproductive efficiency increased with increasing defoliation levels”
t0“tomato”
Claim · model-written summary
Nitrate reductase rose with increasing defoliation.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- increasing defoliation levelse0
- Outcome
- nitrate reductasee0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“photosynthesis, nitrate reductase and reproductive efficiency increased with increasing defoliation levels”
t0“tomato”
Claim · model-written summary
Reproductive efficiency rose with increasing defoliation.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- increasing defoliation levelse0
- Outcome
- reproductive efficiencye0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“photosynthesis, nitrate reductase and reproductive efficiency increased with increasing defoliation levels”
t0“tomato”
Claim · model-written summary
Six-leaf defoliation yielded the highest fruit yield.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- 6 leaves defoliated plante0
- Outcome
- fruit yielde0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest in 6 leaves defoliated plant, which resulting the highest fruit yield”
t0“tomato”
Claim · model-written summary
Heavy defoliation reduced source size, fruit sink and fruit yield.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Heavy defoliatione0
- Outcome
- source sizese0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Heavy defoliation not only reduced source sizes but also decreased total sink (fruits) causing lower fruit yields”
t0“tomato”
Claim · model-written summary
Heavy defoliation decreased total fruit sink.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Heavy defoliatione0
- Outcome
- total sink (fruits)e0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Heavy defoliation not only reduced source sizes but also decreased total sink (fruits) causing lower fruit yields”
t0“tomato”
Claim · model-written summary
Heavy defoliation lowered fruit yield.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Heavy defoliatione0
- Outcome
- fruit yieldse0
- Direction
- lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Heavy defoliation not only reduced source sizes but also decreased total sink (fruits) causing lower fruit yields”
t0“tomato”
Claim · model-written summary
Twelve-leaf defoliation produced the lowest morphophysiological traits and fruit yield.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- 12 leaves defoliated plantse0
- Outcome
- fruit yielde0
- Direction
- loweste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The lowest morpho-physiological attributes and fruit yield was recorded in 12 leaves defoliated plants”
t0“tomato”
Claim · model-written summary
Tomato plants can tolerate one-third leaf loss during reproduction.
- Taxon
- tomatoSolanum lycopersicume0
- Organ / stage
- reproductive stagee0
- Outcome
- tolerate one-third leaf losse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato plants can tolerate one-third leaf loss during reproductive stage”
The same questions in other papers
pruning · growth · Solanum lycopersicum (tomato)Results differ
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- positive
- positive
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52 papers in the same direction as this paper · 18 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- negative
- negative
68 papers more in this group
See all 72 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.