Abstract
The relationships between fruit load, fruit size, shoot growth and dry matter productivity of leaves were investigated with 5-year-old trees of Miyagawa Wase, an early ripening satsuma mandarin, grown under field conditions. After the fruits were harvested, 16 sample trees were dug out and various tree components such as current and older leaves, current shoots, older branches and roots were separately weighed. The growth of older branches during the last year was estimated based on their diameter and length measured two times at the time of sampling and one year before. As an indicator of fruit load, fruit number per kg of dry leaves in each tree was defined as “index of fruit load”.1. The total annual growth increment per tree (fruits+new leaves+current shoots+increment of older branches+increment of roots) was positively correlated with the total amount of leaves per tree.2. The production of both new leaves and current shoots per unit leaf biomass (1kg in dry weight) was found to decrease with increasing indices of fruit load.3. Higher index of fruit load resulted in the reduction of average fruit weight and the remarkable promotion of fruit productivity per unit leaf biomass. The trees bearing 1 fruit per 40-60 leaves, which was approximately equal to or slightly less than the normal level of fruit load in ordinary commercial orchards, produced 1.0-1.1kg of fresh fruit per m2 of leaf area.4. The annual growth increment per kg of leaves (nearly equal to the dry matter productivity of leaves) was 2.3-2.5kg/kg leaf•yr in extremely light bearing trees, while it increased up to about 3.7kg/kg leaf•yr with increasing fruit load in most heavily loaded trees.5. The relationships between the fruit load and average fruit size or fruit yield per unit leaf biomass seemed to be more or less similar to those between planting density and mean plant weight or yield per unit area proposed by Shinozaki and Kira (23). The quantitative formulation of the latter relationships, however, was inapplicable to the former case.
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Claims 9
Claim · model-written summary
Total annual growth increment was positively correlated with total leaf amount per tree.
- Taxon
- satsuma mandarin
Citrus unshiue1 - Material
- Miyagawa Wasee1
- Organ / stage
- leavese0
- Outcome
- total annual growth increment per treee0
- Direction
- positively correlatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The total annual growth increment per tree (fruits+new leaves+current shoots+increment of older branches+increment of roots) was positively correlated with the total amount of leaves per tree.”
e1“Miyagawa Wase, an early ripening satsuma mandarin”
Claim · model-written summary
New leaf production per unit leaf biomass decreased as fruit load rose.
- Taxon
- satsuma mandarinCitrus unshiue1
- Organ / stage
- leavese0
- Outcome
- production of both new leavese0
- Direction
- decreasee0
- Qualifier
- increasing indices of fruit loade0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The production of both new leaves and current shoots per unit leaf biomass (1kg in dry weight) was found to decrease with increasing indices of fruit load.”
e1“Miyagawa Wase, an early ripening satsuma mandarin”
Claim · model-written summary
Current shoot production per unit leaf biomass decreased as fruit load rose.
- Taxon
- satsuma mandarinCitrus unshiue1
- Treatment
- fruit loade0
- Outcome
- current shoots per unit leaf biomasse0
- Direction
- decreasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The production of both new leaves and current shoots per unit leaf biomass (1kg in dry weight) was found to decrease with increasing indices of fruit load.”
e1“Miyagawa Wase, an early ripening satsuma mandarin”
Claim · model-written summary
Average fruit weight decreased with higher fruit load.
- Taxon
- satsuma mandarinCitrus unshiue1
- Treatment
- fruit loade0
- Outcome
- average fruit weighte0
- Direction
- reductione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Higher index of fruit load resulted in the reduction of average fruit weight”
e1“Miyagawa Wase, an early ripening satsuma mandarin”
Claim · model-written summary
Fruit productivity per unit leaf biomass increased with higher fruit load.
- Taxon
- satsuma mandarinCitrus unshiue1
- Treatment
- fruit loade0
- Outcome
- fruit productivity per unit leaf biomasse0
- Direction
- promotione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Higher index of fruit load resulted in the reduction of average fruit weight and the remarkable promotion of fruit productivity per unit leaf biomass.”
e1“Miyagawa Wase, an early ripening satsuma mandarin”
Claim · model-written summary
Trees bearing one fruit per 40–60 leaves produced 1.0–1.1 kg fresh fruit per square metre of leaf area.
- Taxon
- satsuma mandarinCitrus unshiue1
- Outcome
- fresh fruit per m2 of leaf areae0
- Value
- 1.0-1.1kge0
- Qualifier
- 1 fruit per 40-60 leavese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The trees bearing 1 fruit per 40-60 leaves, which was approximately equal to or slightly less than the normal level of fruit load in ordinary commercial orchards, produced 1.0-1.1kg of fresh fruit per m2 of leaf area.”
e1“Miyagawa Wase, an early ripening satsuma mandarin”
Claim · model-written summary
Annual growth increment per kg of leaves was 2.3–2.5 kg/kg leaf-year in extremely light bearing trees.
- Taxon
- satsuma mandarinCitrus unshiue1
- Outcome
- annual growth increment per kg of leavese0
- Value
- 2.3-2.5kg/kg leaf•yre0
- Qualifier
- extremely light bearing treese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The annual growth increment per kg of leaves (nearly equal to the dry matter productivity of leaves) was 2.3-2.5kg/kg leaf•yr in extremely light bearing trees”
e1“Miyagawa Wase, an early ripening satsuma mandarin”
Claim · model-written summary
Annual growth increment per kg of leaves rose to about 3.7 kg/kg leaf-year in the most heavily loaded trees.
- Taxon
- satsuma mandarinCitrus unshiue2
- Treatment
- fruit loade0
- Outcome
- annual growth increment per kg of leavese1
- Direction
- increasede0
- Value
- about 3.7kg/kg leaf•yre0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it increased up to about 3.7kg/kg leaf•yr with increasing fruit load in most heavily loaded trees”
e1“The annual growth increment per kg of leaves”
e2“Miyagawa Wase, an early ripening satsuma mandarin”
Claim · model-written summary
The fruit-load relationships appeared similar to published density relationships, but the density formulation did not apply.
- Taxon
- satsuma mandarinCitrus unshiue1
- Outcome
- quantitative formulation of the latter relationshipse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The relationships between the fruit load and average fruit size or fruit yield per unit leaf biomass seemed to be more or less similar to those between planting density and mean plant weight or yield per unit area proposed by Shinozaki and Kira (23). The quantitative formulation of the latter relationships, however, was inapplicable to the former case.”
e1“Miyagawa Wase, an early ripening satsuma mandarin”