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首页> 外文期刊>Small Fruits Review >Row Covers to Delay or Advance Maturity in Highbush Blueberry
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Row Covers to Delay or Advance Maturity in Highbush Blueberry

机译：行盖可延迟或促进Highbush蓝莓的成熟

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摘要

A wide variety of hardy highbush blueberry (Vaccinium corymbosum L.) cultivars are suitable for cultivation in parts of NorthEastern Canada, and especially Nova Scotia's Annapolis Valley (latitude 45 EN). The object of this research was to investigatethe potential to expand late market opportunities for exported fruit from northern areas by using a combination of controlled atmosphere (CA) storage and in-field row covers to delay fruit maturity in two cultivars ('BIuegold' and 'Brigitta'), and to advance maturity in the cultivar 'Elliott', that normally matures too late for full harvest at this latitude. Covering 'Bluegold' and 'Brigilta' with 50% shading from time of fruit set to harvest delayed full harvest by about 2.5 weeks in the first year. Yield decreases were recorded in the 2nd year of covering suggesting that covering with this density may diminish long-term yield potential. Fruit quality following after 6 weeks of CA storage (10% CO_2, 16% O_2,0°C) was not affected by shading and after42 days of storage fruit showed very little decay. Decay increased substantially after 63 days of storage. A removable row cover (6 mil polyethylene) advanced maturity in 'Elliott' in the first year by between 10 and 14 days, but this advancement was not repeated in the second season. In the first year, covering the crop only until petal drop was nearly as effective as covering throughout the season. Yield from covered plants was increased about 25% in the first year as compared with the controls, butthis increase was not realized in the second year. 'Elliott' fruit from all treatments stored successfully for up to 42 days, and up to 63 days in control plants; fruit from covered plants showed a 30% decline in marketability when subjected to an additional 7 days in air at 7°C following 63 days in CA.
机译：各种各样的耐寒性高灌木蓝莓（Vaccinium corymbosum L.）品种适合在加拿大东北部的部分地区种植，特别是在新斯科舍省的安纳波利斯谷地（45纬度）。这项研究的目的是通过结合使用可控气氛（CA）储藏和田间行盖来延缓两个品种（BIuegold和'Buegold'的成熟度）来研究扩大北部地区出口水果后期市场机会的潜力。 Brigitta'），为了提高品种'Elliott'的成熟度，通常在这种纬度下成熟得太晚，无法完全收获。从收获的果实开始到收获期，用50％的阴影覆盖'Bluegold'和'Brigilta'会使第一年的完整收获推迟约2.5周。在覆盖的第二年中记录到单产下降，这表明以这种密度覆盖可能会降低长期单产潜力。 CA储存6周后的果实品质（10％CO_2，16％O_2,0°C）不受遮荫影响，储存42天后果实几乎没有腐烂。储存63天后，衰变明显增加。第一年，可拆卸的行盖（600密耳聚乙烯）在“ Elliott”的成熟度提高了10到14天，但是在第二个季节中却没有重复这种增长。在第一年，仅覆盖花瓣直至覆盖整个季节，覆盖作物的效果几乎与整个季节相同。与对照相比，第一年覆盖植物的产量增加了约25％，但第二年没有实现。所有处理中的“艾略特”果实成功保存长达42天，在对照植物中保存长达63天;当在CA中放置63天后，在7°C下在空气中再放置7天后，覆盖植物的果实显示出的可销售性下降30％。

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