2020
DOI: 10.3390/agronomy10070980
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Abstract: ×Amarine hybrids are attractive ornamental geophytes grown for cut flower production. Their cultivation is limited due to lesser flowering percentages and lesser bulb weight gain. To optimize the growth and propagation of geophytes, plant growth regulators (PGRs) are used, but so far none have been tested in ×Amarine. We investigated the effect of gibberellic acid (GA3; 50, 100, and 200 mg dm−3) and methyl jasmonate (MeJA; 100, 500, and 1000 µmol dm−3) on growth, flowering, bulb yield, and select physi… Show more

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Cited by 13 publications
(5 citation statements)
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“…The highest SPAD index (59.0) was observed in plants after MeJA application at 1000 µmol dm −3 . The obtained results were consistent with other studies [17], where the stimulating effect of MeJA spraying with 1000 µmol dm −3 on the greenness index of Amarine leaves was demonstrated. It can be assumed that MeJA inhibits chlorophyll degradation in leaves, delaying their aging.…”
Section: Resultssupporting
confidence: 93%
See 1 more Smart Citation
“…The highest SPAD index (59.0) was observed in plants after MeJA application at 1000 µmol dm −3 . The obtained results were consistent with other studies [17], where the stimulating effect of MeJA spraying with 1000 µmol dm −3 on the greenness index of Amarine leaves was demonstrated. It can be assumed that MeJA inhibits chlorophyll degradation in leaves, delaying their aging.…”
Section: Resultssupporting
confidence: 93%
“…The use of exogenous regulators and biostimulants often modifies the content of assimilation pigments in leaves [15,16]. For example, after treatment with gibberellic acid, an increase in leaf greenness was observed in geophytes such as ×Amarine tubergenii 'Zwanenburg' [17], Tulipa gesneriana 'Ad Rem' [18], Zantedeschia aethiopica 'Childsiana' [19] and Lilium longiflorum 'Nellie White' [20]. Methyl jasmonate is another regulator still rarely used in horticultural production [21].…”
Section: Introductionmentioning
confidence: 99%
“…It is well known that the productivity of plants under stress conditions depends on photosynthesis activity, but there is less known about the effect of MJ on photosynthesis under heavy metal exposure. The present study showed the absence of any effect of exogenous MJ application on the rate of net photosynthesis; this corresponds with data obtained on B. napus [ 46 ], rice [ 31 ] and Amarin hybrids [ 47 ]. It is known that Cd affects the rate of photosynthesis (i.e., there is a decrease).…”
Section: Discussionsupporting
confidence: 92%
“…Total N was determined according to the Kjeldahl method, P with colorimetric method according to Barton, and K by flame photometry [50]. The content of total sugar in samples of fresh bulbs was determined following the Luff-Schoorl method [51]. Nutrients and total sugar content were determined using three replicates per treatment.…”
Section: Total N P K and Total Sugar Content In Bulb Determinationmentioning
confidence: 99%