Forcing Characteristics of Easter Lily Bulbs Exposed to Elevated-ethylene and -carbon Dioxide and Low-oxygen Atmospheres

Prince, T. A.; Cunningham, M. S.

doi:10.21273/jashs.116.1.63

Cited by 7 publications

(3 citation statements)

References 4 publications

(3 reference statements)

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“…bulbs exposed to 2 µL . L -1 ethylene during vernalization showed a decrease in flower number (Prince and Cunningham, 1991), but not when bulbs were exposed to ethylene post-vernalization.…”

Section: Methodsmentioning

confidence: 83%

Ethylene exposure is not harmful to <i>Ranunculus asiaticus</i> tuberous roots

Cerveny¹,

Miller²

2009

Israel Journal of Plant Sciences

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We investigated the influence of ethylene exposure on dry or hydrated tuberous roots of the ornamental geophyte Ranunculus asiaticus. Ethylene concentrations up to 10 µL . L -1 for 3 weeks in the dry state or at least 1 week in the hydrated state had negligible influence on post-planting growth in any of the observed parameters. We therefore conclude that Ranunculus asiaticus tuberous roots are ethylene-insensitive and special precautions to avoid ethylene exposure are unnecessary.

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Section: Methodsmentioning

confidence: 83%

Ethylene exposure is not harmful to <i>Ranunculus asiaticus</i> tuberous roots

Cerveny¹,

Miller²

2009

Israel Journal of Plant Sciences

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“…Short-term or long-term exposures to ethylene before plants were moved to the greenhouse had no significant effect on the number of buds, leaves, or plant height, but delayed flowering by 1 week. The delay in flowering (1 week) was supported by Prince and Cunningham (1991), while they reported a decrease in bud number (0.5 per plant) when bulbs were exposed to ethylene during vernalization.…”

Section: Discussionmentioning

confidence: 90%

“…Long-term exposure to methane from planting until the end of vernalization increased both the number of buds, leaves and height without affecting forcing time, leaf yellowing or bud abortion. E thylene and related gaseous compounds reduce height, reduce or abort flower buds and induce premature leaf senescence of easter lilies (Mason and Miller, 1991;Prince and Cunningham, 1991;Wees, 1993). Most studies report effects on emerged plants to low ethylene concentrations (0.01 to 0.1 µL·L -1 ) (Blankenship et al, 1993).…”

mentioning

confidence: 99%

Easter Lilies React Differently to Short- or Long-term Exposure of Ethylene or Methane at Different Stages of Forcing

Brown¹,

Blom²,

Chu³

et al. 2002

horttech

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The sensitivity of easter lilies (Lilium longiflorum) to either ethylene or methane (products of incomplete burning in gas-fired unit heaters) was tested during rooting [3 weeks at 18 °C (65 °F)], vernalization [6 weeks at 6 °C (43 °F)] and subsequent greenhouse forcing (15 weeks at 18 °C). Starting at planting, easter lilies were exposed for one of seven consecutive 3-week periods (short-term), or for 0, 3, 6, 9, 12, 15, 18, or 21 weeks starting at planting (long-term) to either ethylene or methane at an average concentration of 2.4 and 2.5 μL·L-1(ppm), respectively. Short- or long-term exposure to ethylene during rooting and vernalization had no effect on the number of buds, leaves, or plant height but increased the number of days to flower. Short-term exposure within 6 weeks after vernalization reduced the number of buds by 1 bud/plant compared to the control (no ethylene exposure). However, extensive bud abortion occurred when plants were exposed to ethylene during the flower development phase. Long-term exposure to ethylene from planting until after the flower initiation period resulted in only two to three buds being initiated, while continued long-term exposure until flowering caused all flower buds to abort. Short-term exposure to methane at any time had no effect on leaf yellowing, bud number, bud abortion, or height and had only a marginal effect on production time. Long-term exposure to methane from planting until the end of vernalization increased both the number of buds, leaves and height without affecting forcing time, leaf yellowing or bud abortion.

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