floral explants
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2019 ◽  
Vol 99 (4) ◽  
pp. 556-559 ◽  
Author(s):  
Kevin F. Piunno ◽  
Gregory Golenia ◽  
Ekaterina A. Boudko ◽  
Cassandra Downey ◽  
A. Maxwell P. Jones

Cannabis sativa is usually clonally propagated from plants in the vegetative phase. However, phenotypic traits such as yield and chemical composition can only be assessed in unfertilized plants reaching the end of their life cycle and there are no peer-reviewed methods to propagate flowering plants. In this study, immature (three cultivars) and mature (one cultivar) floral explants were cultured on thidiazuron and shoot development was observed in both the immature and mature explants. This provides the first report of micropropagation from floral tissues in C. sativa and will enable plants to be clonally propagated up to the date of harvest.


2011 ◽  
Vol 21 (2) ◽  
pp. 199-205 ◽  
Author(s):  
K. Girish Kumar ◽  
V. Krishna ◽  
Venkatesh Venkatesh ◽  
K. Pradeep

High frequency in vitro regeneration for mass multiplication from immature male floral explants of Musa paradisica cv. Puttabale on MS supplemented with adenine sulfate (160 mg/l), tyrosine (100 mg/l), sucrose (40 g/l) and gelled with 0.8 g/l agar was attempted.  For callus induction the combinations of 2, 4-D and BAP were tested at 1.0 - 10.0 mg/l and 0.5 - 5.0 mg/l, respectively. For shoot bud formation combinations of BAP and TDZ were also tested at 1.0 - 5.0 mg/l and 0.1 - 0.5 mg/l, respectively.  Luxuriant proliferation and high frequency induction (97.0%) of  callus  was  noticed from the  accessory  floral  part  of  the  explant  at 7.0 mg/l 2, 4-D and 1.0 mg/l BAP, later it preceded towards the gynoecium. Interaction of BAP (2.0 – 5.0 mg/l) and TDZ (0.2 - 0.5 mg/l) would provoke high frequency shoot bud differentiation from the floral calli and a mean of 29.40 ± 6.10 shootlets per callus was obtained at 4 mg/l BAP and 0.4 mg/l TDZ. Rooting of the microshoots was achieved on MS containing 0.6 mg/l NAA and 0.2% activated charcoal.     Key words: Musa pardisica, Puttabale, Regeneration, Male floral explants.   D. O. I. 10.3329/ptcb.v21i2.10243   Plant Tissue Cult. & Biotech. 21(2): 199-205, 2011 (December)


2011 ◽  
Vol 109 (2) ◽  
pp. 373-381 ◽  
Author(s):  
Angela Carra ◽  
Maurizio Sajeva ◽  
Loredana Abbate ◽  
Mirko Siragusa ◽  
Francesco Sottile ◽  
...  

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