In this post, author sought to gather information related to strawberry cultivation, especially type cultivars Amaou . The information including plant growth condition, optimum conditions, irrigation techniques and measurement of sugar content. This review post reviewed paper were collected from internet, some presented in english and the other in japanese. Furthermore, the information contained in this paper will be used as a reference in the preparation of monitoring and actuating system.
1. Local heating temperature effects on the growth and yield of strawberries [Fragaria] in high-bench culture
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Author:
Sato, K., Fukuoka-ken. Agricultural Research Center, Chikushino (Japan); Kitajima, N.
Journal:
Bulletin of the Fukuoka Agricultural Research Center (Mar 2010)
Abstract
For forcing culture of strawberries planted on high benches, local heating effects on growth and yield were examined. We heated crowns using an electrically heated wire touched to a crown. Because of local heating, plants became taller, leaf stalks lengthened, leaf width widened, the flowering date of axillary flower clusters was earlier, and leaf appearance was accelerated in a greenhouse where the lowest temperature was 8 deg C. Regarding the local heating temperature, growth promotion effects were significant for temperatures higher than 21degC. Furthermore, higher temperatures produced more significant growth-promotion effects. Growth promotion by local heating was more effective in ‘Toyonoka’ than ‘Amaou’ varieties. However, the ‘Amaou’ fruit weight and the ‘Toyonoka’ fruit number were lower at 25 deg C. These results show that local heating of the crown is effective for growth promotion and that 21degC might be a suitable heating temperature for use in forcing culture of strawberries.
Result:
1. Growth promotion by local heating was more effective in ‘Toyonoka’ than ‘Amaou’ varieties.
2. Local heating of the crown is effective for growth promotion
3. 21 degC might be a suitable heating temperature for use in forcing culture of strawberries .
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2. Effects of irrigation water with high concentrations of Na and HCO3 on yellowing of leaves and on yield of strawberry in bench culture
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Author:
Mizukami, K.(Fukuoka-ken. Agricultural Research Center, Chikushino (Japan)); Odahara, K.; Kaneko, A.
Journal:
Bulletin of the Fukuoka Agricultural Research Center (Mar 2009)
Abstract
Strawberry plants were grown with irrigation water that contained 100mg/l of Na and 200mg/l of HCO3 in bench culture with 1.4 to 1.7 l compost per stock. Under these conditions, yellowing of young leaves and browning of old leaf margins occurred from the middle of January. The yellowing of young leaves was judged to be attributable to a situation where an Mn deficiency symptom had resulted from an absorption restraint of Mn by antagonism of excessive absorption of Na and insolubilization of Mn with a rise in pH of the compost, which in turn had been brought about by a high concentration of HCO3. Mn content in leaves decreased remarkably when such irrigation water was used even if young leaves did not show the yellowing symptom. The decrease in yield from March to May and in total yield is considered to be a result of Mn deficiency restraining fruit enlargement. When Na concentration of irrigation water is lower than 50mg/l, the water may be suitable for strawberry ‘AMAOU’ production with bench culture.
Result:
Na concentration of irrigation water is lower than 50mg/l may be suitable for strawberry ‘AMAOU’ production with bench culture.
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3. Efficiency of Irrigation Method for Strawberries
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Author:
J Mestella Myers
Journal:
Florida state horticultural Society, 1972
Abstract:
Trickle, overhead sprinkler and fur row irrigation methods were compared in a straw berry production experiment. Rainfall during the season was above normal. Yield and size of fruit were not affected by irrigation method. Irrigation method was a significant factor with regards to movement of soluble salts in the bed. Movement of salts was towards the upper center part of the bed for the sprinkler and furrow methods, while significant movement was not detected for the trickle method. Soil moisture content in the rooting zone was maintained near field capacity on a continuous basis by the trickle method, while the sprinkler and furrow methods were effective in returning the soil moisture content to field capacity when applications were made, but this was followed by a gradual depletion to almost soil moisture level of the unirrigated treatment before the next application. Approximately one half the quantity of water was used for the trickle method as compared to the sprinkler and furrow methods.
Result and Conclusion
This research was conducted in Florida US, maybe quite different with strawberry cultivation in Japan. As information for us, soil moisture content in the rooting zone was maintained near field capacity on a continuous basis by trickle method, while the sprinkler and furrow methods were effective in returning the soil moisture content to field capacity when applications were made, but this was followed by a gradual depletion to almost soil moisture level of the unirrigated treatment before the next application.
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[BS] efficiency of irrigation methods for strawberries
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4. Effective CO2 enrichment regimes for yield increases in high-bench strawberry culture in northern kyushu.
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Author:
Mizukami, K.(Fukuoka-ken. Agricultural Research Center, Chikushino (Japan)); Odahara, K.; Kaneko, A.
Journal:
Bulletin of the Fukuoka Agricultural Research Center (Mar 2009)
Result:
- No difference in growth and yield between treatments of 1000 ppm and 2000 ppm.
- When CO2 applied to amaou from 6:00 to 10:00 (November – march 10), compared with the control treatment
- Flowering period occurred earlier after secondary fruit cluster
- Quantity of fruit increased
- Yield increased by 40% form February to March ad by May, total Increased 15%.
- The effective CO2 enrichment for a yield increase in amaou and saga honoka were 1000ppm applied once daily and 1000 ppm applied twice daily, respectively.
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