Journal ID : AMA-20-11-2021-10856
[This article belongs to Volume - 52, Issue - 03]
Total View : 385

Title : Effect of different seed extraction methods on physical and physiological quality of teak (Tectona grandis L.F) drupes

Abstract :

Teak has one of the most valuable timber in the world. It is native to India and the Southeast Asian region (Myanmar, Thailand, and Laos), where it is a major supply of wood. It is widely spread in tropical and subtropical regions of the world. It is mostly propagated through seeds. One of the main limitations of teak is delayed and sporadic germination due to dormancy. It exhibits physical dormancy due to presence of hard and stony endocarp in the drupe. To overcome the problem, true seeds that are available in the drupe need to be extracted and used for seedling production without any problem of dormancy. But extraction of true seed from the teak drupe is not an easy process and it demands more mechanical power. In order to address this issue, an experiment was conducted in view of developing a device to extract true seed from drupes without causing any mechanical damage to the true seed. Extracted true seeds were subjected to physical, physiological and chemical methods to observe the mechanical damage and germination test. It is concluded that among the four methods of extraction, power operated hammer mill with a pulley size of 3 inch with dry drupes recorded highest number of true seeds extraction when compared to all other methods. True seeds extracted by power operated hammer mill recorded higher germination of 48.0 and 51.0 % on 14 and 28 days after sowing with lesser mechanical damage.

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