SylbV01-00-00. pmd

Unit 1:
Origin and diversity studies of mulberry
Centre of origin and diversity studies of mulberry, Mulberry species
and their distribution in India and other countries. Taxonomy of the
genus 
Morus
. Botanical description of the 
Morus
spp.
Unit 2:
Study of floral structure, biology and pollination
Reproduction and genetic constitutions in mulberry –asexual
reproduction- characteristics of mulberry florets- sexual behaviour-
anthesis-reproductive variability. Pollination in mulberry. Cytology of
mulberry, cell division- mitosis and meiosis and their significance.
Karyomorphological studies. Microsporogenesis and Megasporogenesis
in mulberry. Embryological studies of mulberry.
Unit 3:
Genetic basis and general concept of mulberry breeding
Expression of gene: Segregation of genes, linkage, homozygosis,
quantitative inheritance, features of polygenic inheritance, population
structure, Selection of Parents for Hybridization. Procedure of
Hybridization:Pruning and Synchronization of Flowering, Bagging,
Tagging, Pollination. Harvesting and storing of F
1
seeds, Raising F
1
generation. Seedling Selection criteria. Difficulties in hybridization,
Consequences of hybridization. Combining ability: general combining
ability and specific combining ability, Heritability, genetic advance
and genetic divergence.
BLOCK 2: Mulberry germplasm andbreeding methods
Unit 1:
Mulberry germplasm
Establishment of mulberry,objectives and need, exploration, collection
and introduction of mulberry germplasm, acclimatization and
utilization. Introductions, world collection of mulberry germplasm, plant
quarantine, conservation and maintenance of mulberry germplasm,
characterization and evaluation of mulberry germplasm, role of
mulberry germplasm study in mulberry improvement.