Author(s):

Raveena Negi and GS Shamet

Abstract: The containerized production system has advantage over the bare root seedlings. The modern container systems currently being used are root trainers which avoid root spiraling provide air pruning, encourage lateral root developments and to limit the egress of roots from the container. Besides container type, the control of growing medium also assumes great significance as far as production of quality stock is concerned. The aonla (Emblica officinalis Gaertn.) is one of the most important wild fruit crop of India. Its fruit have its medicinal properties and also used in tannin and dyeing industries. Though, aonla is routinely raised through seed, the quality of stock is very poor due to low viability and germination seen in the species. Keeping in view the importance of species, studies were therefore conducted to examine the best growing medium and container type for quality stock production. The growing medium of M₃ consisting of soil + sand + mushroom compost (1:1:2) in combination with polybag C₂ having size 9x4.5 inches with sixteen bottom perforations i.e. M₃C₂, registered significantly maximum germination per cent (76.00) and growth parameters viz., height growth (51.89cm), collar diameter (3.9mm) and root length (34.41 cm), dry root weight (3.19g), dry shoot weight (4.23g) and stock quality index (0.51) in the seedlings. Whereas, maximum root shoot ratio ratio (0.95) was registered by M₄C₄ treatment combination. The good results might be attributed to larger container size 1131cc and perforations with good amount of growing mixture, good porosity, good moisture retention and low plant density, which helped in faster and better growth of the seedling.

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