Abstract
The effect of exogenous ethylene was investigated on single-stemmed plants of Rosa L. `RUIdodo', `RUIrosora', `RUIjef', `MEIferjac', `MEIshulo', `MEIghivon' and `MEIgagul' grown in controlled environment growth chambers simulating summer-like and winter-like conditions. When the flower on each plant reached developmental stage 2 (showing color, calyx reflexing, no petals reflexed), the plants were placed for 18 h in plexiglass chambers with ethylene at 0, 0.1, 0.5, 1.0 and 5.0 μL·L -1 under a simulated interior environment at 21 °C with 14 μmol·m -2 ·s -1 fluorescent light. Under the same interior environment, the plants were kept for postharvest evaluation. Response to ethylene of all cultivars was not affected by the difference in growing conditions. As shown previously by other authors, however, the ethylene reduced flower longevity. Treatment with 0.1 μL·L -1 of ethylene reduced flower longevity by 1 day in comparison to the control (0 μL·L -1 ). The ethylene concentrations of 1.0 μL·L -1 and 5.0 μL·L -1 reduced flower longevity by 3 days. Regardless of ethylene concentration or growing conditions, `RUIjef' and `MEIferjac' exhibited the longest flower longevity and `MEIghivon' and `MEIgagul' the shortest flower longevity. All cultivars, except `RUIrosora', exhibited the longest flower longevity under summer-like vs. winter-like conditions, with the difference ranging from 1.5 to 5 days. `RUIrosora' exhibited similar flower longevity regardless of growing conditions. Differences in flower longevity in response to seasonal growing conditions have been found by us and other authors, but the cultivars used in this study have not been previously studied. This difference in flower longevity as a response to growing conditions cannot be explained by differences in response to ethylene so that other factors must be involved.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 8
Claim · model-written summary
A 0.1 μL·L -1 ethylene treatment reduced rose flower longevity by 1 day relative to the control.
Verbatim
e0“single-stemmed plants of Rosa L.”
e1“Treatment with 0.1 μL·L -1 of ethylene reduced flower longevity by 1 day in comparison to the control (0 μL·L -1)”
e7“grown in controlled environment growth chambers simulating summer-like and winter-like conditions”
Claim · model-written summary
Ethylene at 1.0 and 5.0 μL·L -1 reduced rose flower longevity by 3 days relative to the control.
Verbatim
e0“single-stemmed plants of Rosa L.”
e1“Treatment with 0.1 μL·L -1 of ethylene reduced flower longevity by 1 day in comparison to the control (0 μL·L -1)”
e2“The ethylene concentrations of 1.0 μL·L -1 and 5.0 μL·L -1 reduced flower longevity by 3 days”
e7“grown in controlled environment growth chambers simulating summer-like and winter-like conditions”
Claim · model-written summary
Growing conditions did not affect the response of rose cultivars to ethylene.
Verbatim
e0“single-stemmed plants of Rosa L.”
e3“Response to ethylene of all cultivars was not affected by the difference in growing conditions”
Claim · model-written summary
Rose cultivars RUIjef and MEIferjac had the longest flower longevity regardless of ethylene concentration or growing conditions.
Verbatim
e0“single-stemmed plants of Rosa L.”
e4“Regardless of ethylene concentration or growing conditions, `RUIjef' and `MEIferjac' exhibited the longest flower longevity”
Claim · model-written summary
Rose cultivars MEIghivon and MEIgagul had the shortest flower longevity regardless of ethylene concentration or growing conditions.
Verbatim
e0“single-stemmed plants of Rosa L.”
e4“Regardless of ethylene concentration or growing conditions, `RUIjef' and `MEIferjac' exhibited the longest flower longevity and `MEIghivon' and `MEIgagul' the shortest flower longevity”
Claim · model-written summary
Except RUIrosora, rose cultivars had longer flower longevity under summer-like conditions than under winter-like conditions, by 1.5 to 5 days.
Verbatim
e0“single-stemmed plants of Rosa L.”
e5“All cultivars, except `RUIrosora', exhibited the longest flower longevity under summer-like vs. winter-like conditions, with the difference ranging from 1.5 to 5 days”
Claim · model-written summary
Flower longevity of RUIrosora was similar regardless of growing conditions.
Verbatim
e0“single-stemmed plants of Rosa L.”
e6“`RUIrosora' exhibited similar flower longevity regardless of growing conditions”
Claim · model-written summary
Seasonal differences in flower longevity are not explained by ethylene response, so other factors are likely involved.
Verbatim
e0“single-stemmed plants of Rosa L.”
e1“This difference in flower longevity as a response to growing conditions cannot be explained by differences in response to ethylene so that other factors must be involved”
The same questions in other papers
ethene · pest · RosaResults agree
2 papers in the same direction as this paper
- negative
- negative
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.