Claim · model-written summary
In 1968, fruiting coffee trees with over 8000 fruits took over 70% of the dry weight increment during the 1968 Long Rains.
- Taxon
- Coffea arabica
Coffea arabicat0 - Treatment
- fruitinge1
- Outcome
- dry weight incremente1
- Value
- over 70 %e1
- Qualifier
- retained over 8000 fruits per treee1
- Setting
- 1968 Long Rainse1
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Coffea arabica L.”
e1“In 1968 fruiting trees retained over 8000 fruits per tree, which took over 70 % of the dry weight increment during the 1968 Long Rains, and became 36 % of the trees' dry weight.”
Title
M. G. R. CANNELL Annals of Applied Biology 1971. doi:10.1111/j.1744-7348.1971.tb02910.x
Other claims from this paper (19)
- Observation Deblossomed coffee trees had a net assimilation rate as large as that recorded for coffee seedlings in East Africa, 0·13 g dm ‐2 wk ‐1.
- Intervention effect Fruiting coffee trees increased dry weight faster than deblossomed trees, even though their leaf area was 30% smaller.
- Observation Fruiting coffee trees had a net assimilation rate of up to 0·19 g dm ‐2 wk ‐1 when expressed on a leaf area basis.
- Observation Net assimilation rate of fruiting coffee trees reached up to 0·16 g dm ‐2 wk ‐1 when the total green fruit surface area was included.
- Observation In the hot, dry season of January–February 1968, all parts of the coffee trees increased in dry weight relatively slowly.
- Observation In the hot, dry season, thin roots (< 3 mm diameter) took about 10% of the dry weight increment.
- Observation Trees pruned in December had a net assimilation rate of only 0·09 g dm ‐2 wk ‐1 for deblossomed trees.
- Observation During the 1967 shoot growth flush, 61% of the dry weight increment went into new, large leaves with a mean specific leaf area of over 140 cm 2 g ‐1.
- Observation During the 1967 shoot growth flush, thin roots took about 10% of the increment.
- Observation Following the shoot growth flushes, the leaf area ratio of coffee trees was large, 0·38 dm 2 g ‐1 in 1967.
- Observation During the Long Rains, all parts of the coffee trees increased in dry weight relatively rapidly.
- Observation In 1968 thin roots took as little as 3% of the total dry weight increment of coffee trees.
- Observation Leaf area ratio of coffee trees decreased during the Long Rains, from 118 to 95 cm 2 g ‐1 in specific leaf area in 1967.
- Observation New leaf production of coffee trees during the cool, dry season, July to mid‐September, was very slow.
- Observation Leaves took 33% of the dry weight increment of coffee trees.
- Observation Specific leaf area of coffee leaves decreased to 83 cm 2 g ‐1 in the cool dry season.
- Observation Fruit in 1968 became 36% of the dry weight of fruiting coffee trees.
- Observation Light fruiting in 1967 did not affect the seasonal periodicity of growth of coffee trees.
- Intervention effect Light and heavy fruiting tended to lessen the dry weight increase of leaves and thin roots proportionately more than that of the trunk and thick roots.