Temperature conditions optimization for storing tropical orchid seeds on the example of <i>Eulophia streptopetala</i> and <i>Stanhopea tigrina</i>
نویسندگان
چکیده
The paper presents the results of study temperature regime optimization for storing seeds tropical orchids on example Eulophia streptopetala Lindley and Stanhopea tigrina Batem ex Lindl. Mature were frozen at temperatures 18C, 40C or 80C a period 1, 3, 6 12 months, storage was +4C. Before after freezing, viability determined by visual tetrazole methods. After defrosting, sown plants grown from them cultivated nutrient asymmetric medium, then dynamics plant development recorded, content photosynthesis pigments (chlorophyll carotenoids) quantified. analysis data obtained showed that significantly decreases storage, including in conditions low temperatures. At same time, experimental groups plants, terms early ontogenetic states shortened, growth rate protocorms increased. Freezing caused further restructuring photosynthetic apparatus. optimal species +4C, 40C.
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ژورنال
عنوان ژورنال: Samarskij nau?nyj vestnik
سال: 2022
ISSN: ['2309-4370', '2782-3016']
DOI: https://doi.org/10.55355/snv2022114110