Paper · 2016 · Journal of Agriculture Forestry and the Social Sciences

Seedling growth performance of Entandrophragma angolense (Welw.) C. DC as influenced by different light intensities

AO Adewunmi; OT Bolanle–Ojo; AO Oladejo

3
claims
6
verbatim quotes
1
citations
1
research areas
—
Not open access

Abstract

The study investigated the influence of light intensities on the early growth performance of Entandrophragma angolense as an important step towards its domestication. Seedlings of E. angolense were monitored under five light intensities namely: under tree canopy (5%), 25%, 50%, 75% light intensities and control treatment was direct sunlight (100% light intensity). The study was conducted in a Completely Randomized Design and for the period of 3 months. The different light intensities did not significantly affect the height, collar diameter, leaf production and biomass accumulation of E. angolense seedlings. Chlorophyll content of leaf was significantly affected by light intensities. The result from this study has shown that E. angolense seedlings can be easily raised in the nursery under different light intensities. The result revealed that height and other growth parameters as well as biomass accumulation do not depend on the amount of light intensities received. Chlorophyll content of leaves of the seedlings however depend on the amount of light intensities received.Keywords: Environmental factors, Propagation, Domestication, Biomass, Chlorophyll, light intensity

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Claims 3

Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Light intensities did not significantly affect the height, collar diameter and leaf production of E. angolense seedlings.

Organ / stage
seedlingse0
Treatment
different light intensitiese0
Outcome
height, collar diameter, leaf productione0
Direction
did not significantly affecte0
Comparator
direct sunlight (100% light intensity)e1

Verbatim

e0

“The different light intensities did not significantly affect the height, collar diameter, leaf production and biomass accumulation of E. angolense seedlings”

✓ located verbatim in the source · abstract, characters 457–613 · show in text ↑
e1

“control treatment was direct sunlight (100% light intensity)”

✓ located verbatim in the source · abstract, characters 305–365 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Light intensities did not significantly affect the biomass accumulation of E. angolense seedlings.

Organ / stage
seedlingse0
Treatment
different light intensitiese0
Outcome
biomass accumulatione0
Direction
did not significantly affecte0
Comparator
direct sunlight (100% light intensity)e1

Verbatim

e0

“The different light intensities did not significantly affect the height, collar diameter, leaf production and biomass accumulation of E. angolense seedlings”

✓ located verbatim in the source · abstract, characters 457–613 · show in text ↑
e1

“control treatment was direct sunlight (100% light intensity)”

✓ located verbatim in the source · abstract, characters 305–365 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Chlorophyll content of E. angolense leaves was significantly affected by light intensities.

Taxon
Entandrophragma angolenseEntandrophragma angolensee3
Treatment
light intensitiese2
Outcome
Chlorophyll content of leafe2

Not reportedComparatorDirection

Verbatim

e2

“Chlorophyll content of leaf was significantly affected by light intensities”

✓ located verbatim in the source · abstract, characters 615–690 · show in text ↑
e3

“The study investigated the influence of light intensities on the early growth performance of Entandrophragma angolense”

✓ located verbatim in the source · abstract, characters 0–118 · show in text ↑