Relationship between visually determined starch content and flowering of containerized field-grown garden roses

H. Brent Pemberton, Ursula K Schuch

Research output: Contribution to journalArticle

Abstract

Rose (Rosa sp.) cultivars Chrysler Imperial, Christian Dior, Garden Party, and Oregold were harvested bare-root on 18 November and 2 December 2002 from a commercial nursery in Arizona. Grade 1 plants were stored for either 0, 2, or 4 weeks at 2°C and then were potted and forced to flowering in Tucson, Arizona and Tyler, Texas. At the time of digging and at the end of each storage period, representative plants were visually evaluated for starch content using stem cross sections stained with lugol solution. Starch ratings were similar across weeks of cold storage for the 18 November digging date, but declined with weeks of cold storage for some cultivars dug on 2 December. The number of flowering shoots was affected by cultivar, digging date and cold storage. Starch ratings of rose canes at the time of potting do not appear to be related to the number of flowering shoots or the time from potting to anthesis when bare-root plants are containerized and forced into flower.

Original languageEnglish (US)
Pages (from-to)105-110
Number of pages6
JournalActa Horticulturae
Volume751
StatePublished - 2007

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gardens
Rosa
cold storage
starch
flowering
cultivars
shoots
canes
storage time
flowers
stems

Keywords

  • Cold storage
  • Lugol stain
  • Scheduling blooming

ASJC Scopus subject areas

  • Horticulture

Cite this

Relationship between visually determined starch content and flowering of containerized field-grown garden roses. / Pemberton, H. Brent; Schuch, Ursula K.

In: Acta Horticulturae, Vol. 751, 2007, p. 105-110.

Research output: Contribution to journalArticle

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