Figures & data
FIGURE 1 Different cropping programs used in Japan to produce strawberries. Adaptations of June-bearing cultivars for winter fruit production using the forcing culture system and fruit production from ever-bearing cultivars from summer to fall in cooler climates have enabled the Japanese strawberry industry to deliver fresh strawberries to the market all year around.
TABLE 1 Modern Japanese Strawberry Cultivars with Their Release Date and Changes in the Percent Acreage Planted to These Cultivars from 1982 to 2009Footnote z
FIGURE 2 Annual strawberry production (MT) and the acreage in different production systems during the period from 1980 to 2010 (Ministry of Agriculture, Forestry and Fisheries, Japan). Note the production has been steady but the acreage used for strawberry cultivation has declined during this period. Scale of acreage is different in substrate from total and protected production.
FIGURE 3 Monthly mean price and supply of strawberries at the Tokyo Metropolitan Wholesale Market. 1,000 JP Yen = 12 $US in February 2011.
FIGURE 4 Examples of strawberry production systems in Japan. (A) Forcing annual hill production system in a typical walk-in tunnel (width 5.4 m, height 2.1 m, Miki, Kagawa on March 2000), and (B) soil-less, peat-bag culture system on bench-top, shown here inside a greenhouse with ‘Nyoho’ strawberry at the NOZOMI Farm in Okayama prefecture (photograph taken January 2006) (color figure available online).
TABLE 2 Share of Major Substrate Culture Systems in Japan (2003)
FIGURE 5 Special equipment “Yarei-ko” (night cooling chamber) for short day–low temperature treatment (Miki, Kagawa on September 2009). Sliding tiered shelves are put into air-conditioned chamber (13–15°C) beyond the shelves from 2 pm to 6 am (color figure available online).
