How do you propagate Casuarina?
Vegetative propagation Outstanding casuarina trees can be propagated by rooting of young shoots (‘sprigs’). Such plants produce uniform superior growth in plantations. Sprigs collected from selected trees are trimmed to 8-10 cm long and washed in a 5% solution of fungicide like Bavistin.
What are the four conditions of rooting cuttings?
Media used for the plant material should be friable, aerated, well drained, moist and warm (if appropriate). The higher the temperature around the plant material forming roots, the faster the chemical reactions and therefore the faster the root formation. Provide cutting with high humidity to prevent water loss.
Are seeds used for clonal propagation?
In nature, clonal propagation occurs by apomixis (seed develop- ment without meiosis and fertilization) and/or vegetative reproduction (regeneration of new plants from vegetative parts).
Is Casuarina a succulent?
Casuarina are deciduous trees that grow in open, coastal habitats, etc. C. Oxalis is a genus flowering plants in the wood sorrels and coming to the last option D. Euphorbia, it is a subtropical succulent species of the genus – Euphorbia.
What is the family of Casuarina?
SheoaksShe-oak / Family
What is layering in artificial vegetative propagation?
Layering: This method involves bending plant branches or stems so that they touch the ground. The portions of branches or stems in contact with the ground are then covered with soil.
Why is clonal propagation important?
Hence, asexual clonal propagation helps in maintaining the genetic characteristics of each species. Production of disease free plants – Certain tree species are often susceptible to some pests and diseases and others may be partially or entirely resistant.
What is clonal propagation PDF?
Production of genetically identical copies of a plant without interference of sex organ is called Clonal Propagation. Individual plant obtained by this asexual method is known as clone.
What is the best method for propagation of CAS-uarina (CAS) uarina?
Vegetative propagation of Cas- uarina spp. through cuttings was tested in the 1970s (Somasundaran and Jagadees 1977; Hussain and Ponnuswamy 1980; Torrey 1983). El-Lakany and Shepherd (1984) successfully used stump propagation. Lundquist and Torrey (1984) obtained satisfactory results with mature softwood stem cuttings.
How to handle Casuarinaceae in vitro?
Since Casuarinaceae appear to be an easy plant material to handle in vitro, two approaches are worth developing. The first approach is based on exploiting natural genetic variability. Casuarinaceae species were found to be easily micro- propagated and culture of immature female inflorescences was developed for mature trees.
Are Allocasuarina and Casuarina different species?
Allocasuarina were more specific in their Frankia requirements than species of the Casuarina genus, a conclusion already reached by Torrey and Racette (1989), who cultivated their plants in pots.
Can rapid in vitro propagation of elite casuarina trees improve semiarid forest productivity?
Application of rapid in vitro propagation of elite Casuarina trees with improved saline or drought tolerance and a high ability to fix atmospheric nitrogen, would have a tremendous impact on the afforestation of semiarid zones and would significantly improve forest productivity.