Nursery Technology for Commercial Forest Trees (Paper Code: 17010701)

Flowering and seed production in gymnosperms and angiosperms; development and maturation of seed/ fruit; modes of seed dispersal; determining optimal harvest maturity indices.

Factors influence choice of collection methods; seed production area and seed orchard, methods of seed collection and processing, stage methods and seed testing techniques; seed certification

Introduction and importance of nursery; types of nurseries; bare root, containerized and vegetatively produced nursery; physiology and nursery environment interaction affecting seedling growth; root culturing techniques

Lifting windows, grading, packaging and storing and out planting

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Identification of forest seeds; seed sampling

different storage methods; seed quality testing-purity, viability and germination, collection and processing of seeds/ fruit;

tests of viability viz., cutting, hydrogen peroxide, excised tetrozolium, embryo,

seed health testing; introduction and identification of modern equipments and tools used in nursery;

pre-sowing seed treatments; preparation of nursery beds and growing media for containerized nursery;

sowing of seed and other intermediate nursery management operations; preparation and planting of cuttings;

use of vegetative propagation methods such as budding, grafting and layering; precaution required in vegetative propagation, use of plant bio-regulators for rooting maintenance of nursery records;

identification of nursery insects and diseased and their control measures; visit to nurseries; bare root nursery: nursery soil and water management, bed preparation, pre sowing seed treatments, seed sowing and intermediate operations viz., pricking, watering, fertilization, weeding and hoeing; containerized nursery:

type and size of container including root trainers, selection of growing medium; types of green house and mist chamber for propagation; vegetative propagation: selection of superior phenotype, methods of propagation viz. cutting, budding, grafting and layering;

factors affecting rooting of cuttings; structures, media fertilizers, sanitation and containers, source selection and management in vegetative propagation.

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