V1 and S36 are the high yielding mulberry varieties highly suitable for silkworm rearing. These two varieties produce nutritive leaf, which is essential for good growth of silkworm larvae. The characteristics of these two mulberry varieties are as follows:
Paired row system of plantation with (90 + 150) cm x 60 cm spacing is advantageous over the existing system of plantation with 90 cm x 90cm or 60 cm x 60 cm spacing. The advantages of paired row plantation are
In sericulture, mulberry saplings are commercially produced from cuttings under raised or flat bed system.
The success of sprouting and vigour of the sapling are greatly influenced by competing weeds, soil moisture, and soil temperature. Since water and labour availability/expenditure on weeding are the hurdles nowadays, a new method of raising mulberry saplings using polythene sheets is developed to overcome these difficulties, which practically proved very effective for successful production of quality mulberry saplings for commercial purpose.
After ploughing the land to 30 to 40 cm depth and application of 8 to 10 metric tonnes of farm yard manure, the land is to be levelled. Nursery beds are prepared with an irrigation channel three fourth common for both sides of beds.
Black polythene sheets cut to the size of 15 feet x 5 feet are to be placed on the bed and 6 to 8 months old disease-free mulberry cuttings (15 to 20 cm length with 3 buds) are to be inserted into the polythene-covered nursery bed soil at the spacing of 10 cm x 10 cm. Channel irrigation is to be done over the polythene itself once in a week or 10 days depending upon the soil texture of the area.
Source: B. Mohan, N. Sakthivel & R. Balakrishna, Research Extension Centre, Srivilliputtur; Central Silk Board ; Central Sericulture Research & Training Institute, Mysore
Last Modified : 3/1/2020
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