Abstract

Mulberry plants have wide range of variations in characters in view of its adaptability to cross pollination with no inter-specific reproduction barrier rendering it a heterozygous species. Every plant being different from the other in natural population, this great diversity makes it difficult to gather information and carry out studies on effect of different edaphic factors on the expression of genotypic characters for adjudging the variations. In lieu of this known diversity for posterity, the collection of mulberry genotypes from diverse genetic sources, their conservation, evaluation and consequent documentation is of prime importance. In the present study, 69 mulberry accessions were characterized for morphology, anatomy, and reproductive parameters. Evaluation for propagation, growth and yield characters were also carried out. Based on multiple trait analysis, 14 top performing accessions viz., MI-0879, MI-0882, MI-0908, MI-0931, MI-0907, MI-0940, MI-0881, MI-0941, MI0892, MI-0913, MI-0937, MI-0934, MI-0865, MI-0886 were identified. These accessions could serve as resources for further evaluation aimed at trait-specific crop improvement.

Highlights

  • Mulberry is a perennial, highly heterozygous, out breeding tree of the genus Morus within the family Moraceae

  • The data recorded was stored in the Mulberry Germplasm Information System (MGIS) database for further analysis

  • The 69 accessions studied were subjected to multiple trait analysis resulting in the identification of 14 promising accessions viz., MI-0879, MI-0882, MI-0908, MI-0931, MI-0907, MI-0940, MI-0881, MI-0941, MI-0892, MI-0913, MI-0937, MI-0934, MI-0865, MI-0886 (Table 12)

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Summary

INTRODUCTION

Highly heterozygous, out breeding tree of the genus Morus within the family Moraceae. Mulberry leaf is the exclusive food for domestic silkworm Bombyx mori which produces natural silk. At present, there is an increasing demand to develop region and season specific mulberry varieties for rearing hybrid silkworm breeds. Standard characterization and evaluation of mulberry accessions are continuously carried out using different methods and traditional practices such as use of descriptor lists for morphology, anatomy, reproductive and growth characters. The trait-specific best performers were identified that can be utilized in future breeding programs

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