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Evaluation of raspberry (Rubus sp.) genotypes for postharvest quality and resistance to Botrytis cinerea.

机译：评估覆盆子（Rubus sp。）基因型的收获后品质和对灰葡萄孢的抗性。

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摘要

Raspberries are a delicate, high value specialty crop with an extremely short shelf life. This is exacerbated by their susceptibility to postharvest decay caused by Botrytis cinerea. Of the three commercially available species, red raspberry (Rubus idaeus L.) is the most widely grown. Yellow (R. idaeus L.), black ( R. occidentalis L.) and purple raspberries (R. x neglectus Peck.) are mainly available from direct marketers. The quality and storageability of 17 cultivars was examined weekly from June to September during two growing seasons. Storage life was assessed weekly, while firmness, color, respiration and ethylene evolution rates were measured in select harvests. Black and purple raspberries outperformed red and yellow cultivars in their ability to resist B. cinerea colonization. Black raspberries also had the lowest ethylene evolution rates and incidence of decay. This information will be useful to raspberry breeding programs by identifying physiological characteristics that are correlated with greater resistance to B. cinerea.
机译：覆盆子是一种精致，高价值的特产作物，保质期极短。它们对灰葡萄孢引起的收获后腐烂的敏感性加剧了这种情况。在三种市售品种中，红树莓（Rubus idaeus L.）种植最广泛。黄色（R. idaeus L.），黑色（R. occidentalis L.）和紫色覆盆子（R. x neglectus Peck。）主要可从直接销售商处获得。在两个生长季节中，从六月到九月每周检查17个品种的质量和可贮藏性。每周评估存储寿命，同时在某些收获物中测量硬度，颜色，呼吸和乙烯释放速率。黑色和紫色覆盆子在抵抗灰质芽孢杆菌定殖方面的性能优于红色和黄色品种。黑树莓的乙烯释放速率和腐烂发生率也最低。该信息将通过识别与更大的灰葡萄孢菌抗性相关的生理特征，对树莓育种计划有用。

著录项

  • 作者

    Harshman, Julia Mae.;

  • 作者单位

    University of Maryland, College Park.;

  • 授予单位 University of Maryland, College Park.;
  • 学科 Agriculture Plant Culture.
  • 学位 M.S.
  • 年度 2012
  • 页码 76 p.
  • 总页数 76
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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