Economic significance
Economics of raising QPM stock of sandal seedlings
Sandal should ideally be raised in root trainers rather than polybags as the root system is far
more established and better in root trainer raised seedlings as compared to polybagged raised
ones and showed better results in growth and establishment in field.
However an initial
infrastructure investment by way of root trainers and stands have to be incurred.
If recurring
costs alone are considered then root trainer seedlings have a lower production cost of Rs
6.26 per seedling as compared to Rs 6.45 per 1500 cc polybag seedling which is mainly due
to lesser quantity of consumables (sand, compost etc) used.
Moreover the root system
development and haustorial association with primary host redgram in the case of sandal
seedlings raised in 270cc root trainers is far better than polybagged seedlings.
These
seedlings were also found to establish perform much better in field conditions.
Planting poor inferior quality sandal seedlings from unknown seed origin and planting in
nonscientific manner without proper host plants would jeopardize the end results expected
and would cause great financial loss to farmer since quality of heartwood would be
compromised.
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