Germination study of seeds of
Aconitum heterophyllum can be undertaken at lower
altitude in polyhouse as well as in open nursery beds under different experimental
conditions. Seeds sown in Styrofoam seedling trays containing sandy soil with litter
treatment, gives maximum germinability when seeds were sown 0.5-0.7 cm. sowing
depth inside polyhouse during November and December at lower altitude and during
April in open beds at 2200m.
Germination as well as true leaf initiation is earlier in
sandy soil. Otherwise seedlings remained in cotyledonary stage (pseudomonocotyly)
up to 3-4 months. About 44,000 plants planted 1 acre of land. Seedlings raised at
lower altitude during winter months are transplanted in nursery beds at higher
altitude during April-May, which reduce their vegetative growth period. In open
nursery beds seed germination is very low. Plants raised form seedlings have very
slow growth and cotyledonary phase (pseudomonocotyly) remained at least for one
growth season (3-4 months). Vegetative growth phase is for 3-4 years and at last it
leads to reproductive phase. Addition of forest litter or organic manure to the soil
increases survivability and growth of seedling at lower altitude.
For vegetative propagation top tuber segment having innovation bud was found
more successful. Top tuber segment produces single shoot, which was found more
suitable for multiplication in comparison to middle and basal segments. Vegetative
propagation was found most successful for multiplication as well as for higher
production within short period than cultivation through seedlings.
Availability : Plant/root/seeds
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