ABSTRACT

A replicated trial, planted in 2011, compared nine primocane-fruiting raspberry cultivars for suitability to commercial production in the U.S. Intermountain West. Factors evaluated included annual yield, fruit size, fruiting season, consumer preference, leaf chlorophyll content, and cane infestation by raspberry horntail, a common insect pest of raspberries in northern Utah. ‘Joan J’ was the highest yielding cultivar, averaging 3.32 kg per row meter, followed by ‘Polana’, ‘Autumn Bliss’, and ‘Dinkum’ with 2.53, 2.01, and 1.34 kg·m⁻¹, respectively. ‘Autumn Bliss’ and ‘Joan J’ were the earliest to fruit with a harvest midpoint 4 and 2 days before ‘Polana’, respectively. Leaf chlorophyll concentration (CCl) was highest in ‘Joan J’ and ‘Autumn Treasure’, averaging 30.9 and 27.0 CCl, respectively. All cultivars exhibited similar susceptibility to raspberry horntail, with differences in infestation rates related to the location in the field. A survey of farmers’ market customers found the highest consumer preference for ‘Autumn Bliss’, ‘Dinkum’, and ‘Vintage’. Only the earliest cultivars gave commercially viable yields for the high elevation valleys of the Intermountain West region of the U.S.

摘要

2011年进行的一项重复试验，比较了九种以结冰烷为果实的覆盆子品种在美国西部山间的商业生产适用性。评估的因素包括年产量，果实大小，出果季节，消费者喜好，叶绿素含量以及树莓长尾tail（甘蔗在犹他州北部常见的一种害虫）侵染甘蔗。'Joan J'是产量最高的品种，平均每行米3.32 kg，其次是'Polana'，'Autumn Bliss'和'Dinkum'，分别为2.53、2.01和1.34 kg·m ^-1， 分别。'Best of Bliss'和'Joan J'是最早结实的果实，分别在'Polana'之前4天和2天收获中点。叶片的叶绿素浓度（CCl）在'Joan J'和'Autumn Treasure'中最高，分别为30.9和27.0 CCl。所有品种都表现出与树莓角尾相似的敏感性，侵染率的差异与田间位置有关。一项针对农民市场客户的调查发现，消费者对“秋天极乐”，“ Dinkum”和“ Vintage”的偏好最高。只有最早的栽培品种在美国西部山间地区的高海拔山谷中提供了商业上可行的产量