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PGR 501 EXPLORATION AND GERMPLASM COLLECTING                                                                                  (2L+1P) II

Objective
To provide information about science of germplasm collecting.

Theory

UNIT I
History and importance of germplasm exploration; distribution and extent of prevalent genetic diversity; phyto-geographical regions/ecological zones and associated diversity; mapping eco- geographic distribution of diversity, threatened habitats, use of flora.

UNIT II
Concept of population and gene pool, variations in population and their classification, gene frequencies in populations, rare and common alleles, gene pool sampling in self- and cross-pollinated and vegetatively propagated species, non-selective, random and selective sampling strategies.

UNIT III
Strategies and logistics of plant exploration and collection, coarse and fine grid surveys, practical problems in plant exploration, use of in vitro methods in germplasm collection.

UNIT IV
Ethnobotanical aspects of PGR, crop botany, farming systems, collecting wild relatives of crop plants.

UNIT V
Post-exploration handling of germplasm collections, collection and preservation of specimens, importance and use of herbaria and preparation of herbarium specimens.

UNIT VI
Present status and future strategies in collecting of major crops of Indian origin such as rice, maize, sorghum, sesame, brassica, okra, eggplant, cotton, mango, etc.

Practicals
Plant exploration and germplasm collecting; documenting passport data; use of flora and maps; collecting vegetatively propagated species; local field visit for recording of  ethnobotanical information/notes; post exploration handling of germplasm accessions; collecting wild relatives of crop plants; preparation, maintenance and use of herbarium; local field visit for herbarium collection; report writing on germplasm collecting missions.

Suggested Readings