THE EFFECT OF TEMPERATURE ON FRUIT GROWTH AND FRUIT LOAD OF TOMATO.

1989 ◽  
pp. 329-336 ◽  
Author(s):  
A.N.M. de Koning
Keyword(s):  
Fruit Growth ◽  
Effect Of Temperature ◽  
Fruit Load

scholarly journals Temperature Has a Greater Effect on Fruit Growth than Defoliation or Fruit Thinning in Strawberries in the Subtropics

Agriculture ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 127
Author(s):  
Christopher M. Menzel
Keyword(s):  
Opposite Effect ◽  
Fruit Size ◽  
Fruit Weight ◽  
Fruit Growth ◽  
Effect Of Temperature ◽  
Fragaria Ananassa ◽  
Fruit Thinning ◽  
Mature Leaves ◽  
Small Fruit ◽  
Marketable Fruit

Fruit size declines in strawberries (Fragaria × ananassa Duch.) as the season progresses in many subtropical areas, possibly due to inadequate leaf area, over-cropping, or high temperatures. An experiment was conducted to investigate the importance of these factors on fruit growth in ‘Festival’ in Queensland, Australia. Groups of plants were defoliated to remove half of the mature leaves on each plant, thinned to remove all the inflorescences on each plant, or defoliated and thinned. Control plants were left intact. Defoliation, thinning, or defoliation + thinning decreased yield (total and/or marketable) by 15% to 24% compared with the control. Defoliation, or defoliation + thinning decreased average fruit weight (total and/or marketable fruit) by 1 to 2 g compared with the control, whereas thinning had the opposite effect. The incidence of small fruit increased towards the end of the season. There were strong relationships between fruit weight and average daily mean temperature in the seven weeks before harvest (R2s greater than 0.80). Fruit weight decreased from 24 g to 8 g as the temperature increased from 16 °C to 20 °C. This response was not affected by defoliation or thinning. The strong effect of temperature on fruit size indicates a problem for production in the future in the absence of heat-tolerant cultivars.

scholarly journals Pruning intensity and fruit load influence vegetative and fruit growth in an early-maturing peach tree (cv. Alexandra)

Fruits ◽  
2005 ◽  
Vol 60 (2) ◽  
pp. 133-142 ◽  
Author(s):  
Claude Bussi ◽  
Françoise Lescourret ◽  
Michel Genard ◽  
Robert Habib
Keyword(s):  
Fruit Growth ◽  
Peach Tree ◽  
Early Maturing ◽  
Pruning Intensity ◽  
Fruit Load

scholarly journals Factors affecting soluble solids content of muskmelon (Cucumis melo L.).

1988 ◽  
Vol 36 (3) ◽  
pp. 239-246 ◽  
Author(s):  
G.W.H. Welles ◽  
K. Buitelaar
Keyword(s):  
Leaf Area ◽  
Fruit Growth ◽  
Soluble Solids ◽  
Soluble Solids Content ◽  
Maturation Period ◽  
Factors Affecting ◽  
Series Of Experiments ◽  
Solids Content ◽  
Cucumis Melo L ◽  
Fruit Load

The effects of fruit load, leaf area, night temperature, cultivar and ripening stage on the soluble solids content (SSC) of muskmelons were studied in a series of experiments performed during spring, summer and autumn in heated glasshouses. All factors except fruit load were found to affect SSC. In every experiment the duration of the maturation period (i.e. from fruit set to harvest) was positively correlated with SSC. In order to obtain fruits with a high SSC, it is important to achieve a low rate of fruit growth, i.e. a long maturation period. Low night temperatures in the period of fruit growth, a high leaf area, harvesting only ripe fruits and selecting slow-ripening cultivars may contribute to the production of fruits with high SSC. (Abstract retrieved from CAB Abstracts by CABI’s permission)

A dynamic model of tomato fruit growth integrating cell division, cell growth and endoreduplication

2013 ◽  
Vol 40 (11) ◽  
pp. 1098 ◽  
Author(s):  
Julienne Fanwoua ◽  
Pieter H. B. de Visser ◽  
Ep Heuvelink ◽  
Xinyou Yin ◽  
Paul C. Struik ◽  
...  
Keyword(s):  
Cell Division ◽  
Cell Growth ◽  
Cell Mass ◽  
Fruit Growth ◽  
Growth Potential ◽  
Environment Interaction ◽  
Molecular Control ◽  
Temperature Conditions ◽  
Division Cell ◽  
Fruit Load

In this study, we developed a model of tomato (Solanum lycopersicum L.) fruit growth integrating cell division, cell growth and endoreduplication. The fruit was considered as a population of cells grouped in cell classes differing in their initial cell age and cell mass. The model describes fruit growth from anthesis until maturation and covers the stages of cell division, endoreduplication and cell growth. The transition from one stage to the next was determined by predefined cell ages expressed in thermal time. Cell growth is the consequence of sugar import from a common pool of assimilates according to the source–sink concept. During most parts of fruit growth, potential cell growth rate increases with increasing cell ploidy and follows the Richards growth function. Cell division or endoreduplication occurs when cells exceed a critical threshold cell mass : ploidy ratio. The model was parameterised and calibrated for low fruit load conditions and was validated for high fruit load and various temperature conditions. Model sensitivity analysis showed that variations in final fruit size are associated with variations in parameters involved in the dynamics of cell growth and cell division. The model was able to accurately predict final cell number, cell mass and pericarp mass under various contrasting fruit load and most of the temperature conditions. The framework developed in this model opens the perspective to integrate information on molecular control of fruit cellular processes into the fruit model and to analyse gene-by-environment interaction effects on fruit growth.

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