Development of mulberry varieties for sustainable growth and leaf yield in temperate and subtropical regions of India |
| |
| Authors: | S Gandhi Doss S P Chakraborti S Roychowdhuri N K Das K Vijayan P D Ghosh |
| |
| Institution: | (1) Central Sericultural Research and Training Institute, Berhampore, 742 101, West Bengal, India;(2) Central Silk Board, BTM Layout, Madiwala, Bangalore, 560068, Karnataka, India;(3) Cytogenetics and Tissue culture Laboratory., Department of Botany, University of Kalyani, Nadia, 741 235, West Bengal, India;(4) Present address: Central Sericultural Research and Training Institute, Manandavadi Road, Srirampura, Mysore, 570008, Karnataka, India |
| |
| Abstract: | Sericulture is an agro-based industry, which heavily depends on mulberry (Morus spp.) for its sustainability, as mulberry leaf is the only available feed for the silkworm Bombyx mori L. Sericulture, in West Bengal and other subtropical regions in India, suffers from lack of adequate quantity of quality
mulberry leaf during the colder months, the best season for rearing the high yielding bivoltine silkworm hybrids. In order
to develop mulberry varieties, which can sustain normal growth during these colder months to yield better, efforts have been
made in different research institutes in India. The present report is part of such an effort in which accessions in germplasm
bank were screened for better growth, leaf retention and leaf yield contributing associated traits. Twenty three selected
parents were crossed, 3,500 seeds were sown, 2,700 seedlings were transplanted to progeny row trail, selected 210 hybrids
were evaluated under primary yield trial and finally nine hybrids along with a control variety were studied in detail for
all leaf yield contributing traits under final yield trial. Stability analysis was adopted to identify hybrids, which can
yield stably across seasons. The hybrids CT-44 and CT-11 out yielding the control by 17.17 and 7.11% were selected as these
hybrids yield 7.93 and 8.15 mt/ha leaf respectively during the colder months (February) for their direct use as cultivars
in West Bengal and other subtropical areas of India to sustain bivoltine sericulture to produce quality and gradable silk
fibers. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
