Effect of Light and Storage Nutrition on the Growth and Flowering in Iris ^|^lsquo;Wedgwood^|^rsquo;

Sano, Yasushi

doi:10.2503/jjshs.44.66

Cited by 2 publications

(1 citation statement)

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“…This difference is a direct result of exposure to different soil temperatures before harvest. Hence, when these bulbs are forced, they will react differently to the same treatments (Sano, 1975). Studies are needed to identify morphological markers, physiological markers, or both for Astilbe so that only mature crowns are harvested.…”

Section: Discussionmentioning

confidence: 99%

Influence of Harvest Date and 2C Storage on Floral Development of Dutch-grown Astilbe

Pemberton¹,

Hertogh²

1994

jashs

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Dutch-grown `Deutschland', `Fanal', and `Rheinland' Astilbe, harvested 1 Nov. 1992 and shipped to the United States, were dissected to determine the stage of floral development after 0, 2, 4, 6, 8, 10, 12, or 15 weeks of 2C storage. Astilbe crowns were also planted after 15 weeks of 2C storage and floral development was determined after 1, 2, or 3 weeks of greenhouse forcing. On arrival, multiflower inflorescences were clearly visible. A pattern of abortion and reinitiation occurred during 2C storage. Floral development was markedly repressed when ecodormancy was imposed, but development resumed during greenhouse forcing. During the observational period, floral organ numbers were variable, and morphological abnormalities were observed. In a second experiment, physiological maturity of the crowns was evaluated by harvesting crowns of `Bumalda', `Europa', `Federsee', and `Rheinland' on 15 Sept., 1 Oct., 15 Oct., 1 Nov., and 15 Nov. in The Netherlands. Optimal harvest period was from 1 Oct. to 1 Nov., depending on the cultivar. Crowns harvested before this period were physiologically immature. Crowns harvested during the 4-week window produced the highest overall plant quality and performed as physiologically mature crowns. Astilbe crowns harvested after the 4-week window produced plants with lower forcing qualities and were determined to be beyond the optimal physiological state for forcing.

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Section: Discussionmentioning

confidence: 99%