Plants, Free Full-Text
Por um escritor misterioso
Descrição
The Cattleya (Orchidaceae–Laeliinae subtribe) intergeneric hybrids, such as Brassolaeliocattleya (Blc.), have great ornamental value, due to their compact-size, with large and high color diversity of flowers. Artificial induction of polyploidy brings agronomic, ornamental and genetic benefits to plants. Polyploidization efficiency depends on factors, such as the type of antimitotic, polyploidization method, concentrations, exposure times and type of explant. This study aimed to develop a protocol to polyploidize Blc. orchids, by testing two types of explants (seeds and protocorms), concentrations and exposure times to colchicine. The effects of colchicine on the in vitro development of explants were also investigated. The responses of explants to colchicine depended on the concentrations, exposure time and the interaction of these factors. Flow cytometric analysis evidenced high endopolyploidy and allowed the separation of polyploidized (4C, 8C and 16C peaks) from non-polyploidized (only 2C and 4C peaks) plants. The highest percentage of polyploid plants was regenerated from protocorms (16.4%) treated with colchicine instead of seeds (3.2%). Protocorms treated with colchicine at 500–750 μM for 18 h resulted in the best percentage of polyploidization. Additionally, in vitro natural polyploidization using protocorms was reported (11.5%). Cytological analyses allowed an estimation of the number of chromosomes of the parents (≡70), polyploidized (≡140) and non-polyploidized progeny (≡70).
Premium Vector Plant text effect
I just wet my plants SVG, Vegan SVG
Feel free to talk to these plants they understand svg, png, eps, and dxf is a great shirt and printable wall art design., Instant download: Digital
Feel free to talk these plants they understand SVG is a funny shirt and garden sign design design
Calaméo - In The Herbarium The Hidden World Of Collecting And Preserving Plants
Happy Birthday Box, Custom Tumbler Gift Box, Candle Gift Box, Friendsh – Plant Box Co
Plant Propagation in Pictures by Montague Free 1953 The American Garde - Reading Vintage
Sttm Series Get File - Colaboratory
Indoor Planter with Grow Light, 10 Days Watering-Free
Plants Sticker Sheet (set of 2) – Paper Pastries
Houseplants On The Balcony Room Full Of Plants View Through The Door Urban Jungle Concept Stock Illustration - Download Image Now - iStock
de
por adulto (o preço varia de acordo com o tamanho do grupo)
