The Central Silk Board has envisaged an ambitious plan to produce 5000 mt import substitute BV silk through organization of clusters across the country in co-ordination with DoT (Seri.)/ DOS of the respective states in a mission mode approach during XII plan period.
CSB in association with DoS of various states has introduced the concept of Cluster Promotion Programme with an ambitious plan of producing Bivoltine raw silk. The Institute administered 8 mega clusters through it’s nested units in 8 Eastern and North Eastern states (West Bengal-2; Assam & Nagaland-2; Manipur-2; one each in Mizoram & Tripura). Accordingly, group of villages were selected by each of the Cluster Development Facilitator (CDF) based on the potentiality of the area for practicing bivoltine sericulture. Various improved technologies were introduced in the cluster villages and were managed and supervised directly by the scientists jointly with the DoS counterpart, especially with the co-operation and participation of farmers. Under each of these clusters’ farmers were facilitated for bivoltine technology adoption with an effective Research-Extension-Farmer linkage. As a result, the cocoon productivity levels in the cluster area and and thereby the income has increased at farmer’s level.
Performance of clusters: The 08 Mega clusters of Eastern & North Eastern zone have produced 956.63 MT of cocoons and recorded 110.34 MT (53.30%) of raw silk production (BV: 55.72 MT & ICB: 54.64 MT) against the target of 207 MT; which was 35.69 MT less as compared to the previous year (2020-21), which may be attributable to COVID-19 pandemic situation. During 2021-22, a total of 22.20 Lakh dfls (BV: 10.10 & ICB: 12.10) were reared against the target of 34.30 Lakh dfls (BV: 26.30 & ICB: 8.00) with an achievement of 76.21%. The graphical representation of performance of clusters in the last nine years is incidated in the figure.
Silkworm hybrids distributed under CPP in E & NE zone (2021-22)
State / Mega Cluster
Bivoltine
ICB
West Bengal (Malda & Murshidabad)
- SK6×SK7 / BHP-DH / TT21xTT56
- 12YxBFC1 / N×(SK6×SK7)
Assam & Nagaland (Assam-Lower & Assam-Upper)
- SK-hybrids / Double hybrids
Manipur (Plain & Hill)
- FC1×FC2 /C×J /CSR2×CSR4
- SK-hybrids
Mizoram (Aizawl)
- SK-hybrids / J112
- N×J112
Tripura
(West)
- FC1×FC2 /SK-hybrids
- 12YxBFC1/ PM×FC2
- M6DPC×(SK6×SK7)/ N×(SK6×SK7)
Improved Cross Breed (ICB) performance under CPP in East & North East Zone (2021-22)
Mega Cluster
Dfls (Lakh)
Cocoon
Production(MT)Yield/100 dfls (kg)
Raw Silk (MT)
Target
Ach.
Target
Ach.
% Ach.
West Bengal
Malda
4
6.1105
253.927
41.56
16
25.393
158.71
Murshidabad
4
4.103
189.305
46.14
16
20.859
130.37
Tripura
West Tripura
--
1.880
74.558
39.66
--
08.386
--
Total/Avg.
8.00
12.094
517.79
42.81
32.0
54.638
170.74
Bivoltine hybrids’ performance of under CPP in East & North East zone(2021-22)
Mega Cluster
Dfls (Lakh)
Cocoon
Production
(MT)Yield/
100 dfls
(kg)Raw Silk (MT)
Tar.
Ach.
Tar.
Ach.
% Ach.
West Bengal
Malda
3.5
1.149
54.325
47.28
28.4
7.754
27.32
Murshidabad
3.25
1.201
65.508
54.54
26.6
9.347
35.14
Manipur
Manipur-Plain
2.75
1.670
61.69
49.35
17.50
7.65
43.71
Manipur-Hill
2.75
1.250
60.98
48.78
17.50
7.55
43.14
Assam & Nagaland
Assam-Lower
4.5
1.945
71.661
44.24
30.0
8.71
29.03
Assam-Upper
4.25
0.564
13.279
23.54
24.0
1.644
6.85
Mizoram
Aizawl
2.80
2.3
110.4
48.0
16.0
12.98
81.13
Tripura
West Tripura
2.50
0.02
0.994
49.7
15.0
0.117
0.78
Total/Avg
26.3
10.100
438.837
43.45
175.0
55.752
31.86