Abstract
We have conducted the present experiment to find out the physiological determinants for shade adaptive potentials of turmeric (Curcuma longa) by growing it in four different regimes of light viz. 100% incident light (open), 33% shade, 50% shade and 75% shade in field of three category of shade-net houses and without shade (adjacent open field). Plant height, leaf length and shoot biomass significantly increased under shade. Although, fresh weight of rhizome was more under shade than in open condition, the turmeric yield (dry weight of rhizome) was highest under 50% shade and similar trend was observed with shoot biomass and chlorophyll content index. PPFD (Photosynthetic photon flux density) saturated rate of CO2 assimilation (Amax) was highest under 50% shade. Physiological efficiency of turmeric plants under shade was noted to be higher than open condition (100% sun light) as we observed higher rate of photosynthesis (CO2 assimilation), PS2 quantum yield, low co-efficient of non-photochemical quenching (qN) with sustained photochemical quenching (qP) and optimum thylakoid electron transport rate (ETR) of turmeric plants under shade. Shade adaptive potential of turmeric has been well corroborated with leaf protein profiling that indicated more thicker protein bands around 55 kDa and 17 kDa under shade which mostly linked with RUBISCO (Ribulose bisphosphate carboxylase-oxygenase) and LHCP (Light Harvesting complex protein). The present study revealed the physiological basis of shade adaptive potential of turmeric plants. For its better physiological efficiency turmeric could be grown as a shade tolerant crop (partial shade regimes from 33 to 50%) under light limiting environment like agroforestry or intercrop practices.
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Claims 13
Claim · model-written summary
Shade significantly increased plant height and leaf length.
- Taxon
- turmeric
_W_IMG_2440.jpg?width=60)
Curcuma longat0 - Treatment
- shadee0
- Outcome
- Plant height, leaf lengthe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_W_IMG_2440.jpg?width=500)
Verbatim
e0“Plant height, leaf length and shoot biomass significantly increased under shade.”
t0“turmeric”
Claim · model-written summary
Shade significantly increased shoot biomass.
- Taxon
- turmericCurcuma longat0
- Treatment
- shadee0
- Outcome
- shoot biomasse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plant height, leaf length and shoot biomass significantly increased under shade.”
t0“turmeric”
Claim · model-written summary
Rhizome fresh weight was greater under shade than open conditions.
- Taxon
- turmericCurcuma longat0
- Organ / stage
- rhizomee0
- Treatment
- shadee0
- Outcome
- fresh weight of rhizomee0
- Direction
- moree0
- Comparator
- open conditione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fresh weight of rhizome was more under shade than in open condition, the turmeric yield”
t0“turmeric”
Claim · model-written summary
Dry rhizome yield was highest under 50% shade.
- Taxon
- turmericCurcuma longat0
- Organ / stage
- rhizomee0
- Treatment
- 50% shadee0
- Outcome
- turmeric yield (dry weight of rhizome)e0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the turmeric yield (dry weight of rhizome) was highest under 50% shade”
t0“turmeric”
Claim · model-written summary
Shoot biomass and chlorophyll index followed the yield trend under 50% shade.
- Taxon
- turmericCurcuma longat0
- Treatment
- 50% shadee0
- Outcome
- shoot biomass and chlorophyll content indexe0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highest under 50% shade and similar trend was observed with shoot biomass and chlorophyll content index”
t0“turmeric”
Claim · model-written summary
Maximum CO2 assimilation was highest under 50% shade.
- Taxon
- turmericCurcuma longat0
- Treatment
- shadee0
- Outcome
- rate of photosynthesis (CO2 assimilation)e0
- Direction
- highere0
- Comparator
- open condition (100% sun light)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“turmeric plants under shade was noted to be higher than open condition (100% sun light) as we observed higher rate of photosynthesis (CO2 assimilation)”
t0“turmeric”
Claim · model-written summary
PPFD-saturated CO2 assimilation was highest under 50% shade.
- Taxon
- turmericCurcuma longat0
- Treatment
- 50% shadee0
- Outcome
- rate of CO2 assimilation (Amax)e0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PPFD (Photosynthetic photon flux density) saturated rate of CO2 assimilation (Amax) was highest under 50% shade.”
t0“turmeric”
Claim · model-written summary
Shade increased physiological efficiency relative to open conditions.
- Taxon
- turmericCurcuma longat0
- Treatment
- shadee0
- Outcome
- Physiological efficiencye0
- Direction
- highere0
- Comparator
- open condition (100% sun light)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Physiological efficiency of turmeric plants under shade was noted to be higher than open condition (100% sun light)”
t0“turmeric”
Claim · model-written summary
Shade was associated with higher PS2 quantum yield.
- Taxon
- turmericCurcuma longat0
- Treatment
- shadee0
- Outcome
- PS2 quantum yielde0
- Direction
- highere0
- Comparator
- open condition (100% sun light)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“turmeric plants under shade was noted to be higher than open condition (100% sun light) as we observed higher rate of photosynthesis (CO2 assimilation), PS2 quantum yield”
t0“turmeric”
Claim · model-written summary
Shade was associated with low non-photochemical quenching.
- Taxon
- turmericCurcuma longat0
- Treatment
- shadee0
- Outcome
- co-efficient of non-photochemical quenching (qN)e0
- Direction
- lowe0
- Comparator
- open condition (100% sun light)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“turmeric plants under shade was noted to be higher than open condition (100% sun light) as we observed higher rate of photosynthesis (CO2 assimilation), PS2 quantum yield, low co-efficient of non-photochemical quenching (qN)”
t0“turmeric”
Claim · model-written summary
Shade sustained photochemical quenching and optimum electron transport.
- Taxon
- turmericCurcuma longat0
- Treatment
- shadee0
- Outcome
- photochemical quenching (qP) and optimum thylakoid electron transport rate (ETR)e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with sustained photochemical quenching (qP) and optimum thylakoid electron transport rate (ETR) of turmeric plants under shade”
t0“turmeric”
Claim · model-written summary
Shade produced thicker protein bands near 55 and 17 kDa.
- Taxon
- turmericCurcuma longat0
- Organ / stage
- leafe0
- Treatment
- shadee0
- Outcome
- protein bandse0
- Direction
- more thickere0
- Value
- 55 kDa and 17 kDae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Shade adaptive potential of turmeric has been well corroborated with leaf protein profiling that indicated more thicker protein bands around 55 kDa and 17 kDa under shade”
t0“turmeric”
Claim · model-written summary
Authors recommend growing turmeric in partial shade from 33 to 50%.
- Taxon
- turmericCurcuma longat0
- Outcome
- could be grown as a shade tolerant crope0
- Qualifier
- partial shade regimes from 33 to 50%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For its better physiological efficiency turmeric could be grown as a shade tolerant crop (partial shade regimes from 33 to 50%)”
t0“turmeric”
The same questions in other papers
shade · yield · Curcuma longa (turmeric)Results differ
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- no effect
- positive
- positive
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See all 7 papers →shade · growth · Curcuma longa (turmeric)Results agree
4 papers in the same direction as this paper
- positive
- positive
- positive
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See all 5 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.