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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2019: 96.39
Index Copernicus ICI Journals Master List 2019 - IJCMAS--ICV 2019: 96.39
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2020.9(5): 3021-3025
DOI: https://doi.org/10.20546/ijcmas.2020.905.359


Standardization of Rapid Multiplication Technique (RMT) in Cassava (Manihot esculenta Crantz.)
Pugalendhi1 and M. Velmurugan2*
1Horticulture, HC&RI, TNAU Coimbatore-641003, TN, India
2Department of Floriculture and Landscaping, HC&RI, TNAU Coimbatore-641003, TN, India
*Corresponding author
Abstract:

Cassava (Manihot esculenta Crantz.) is an important tuber cultivated in India. Cassava is vegetatively propagated through stem cuttings (setts). A mature plant with two stems will give about 12 to 20 normal sized (20 cm) setts after one year. Farmers are practicing 8-10 cm long cuttings from the mature part of stem and planted in vertical position in nursery bed at closer spacing of 5 cm. Under conventional system of propagation, 1250 to 1500 stems are required for planting one hectare of area. Cassava is highly susceptible to cassava mosaic disease (CMD) and disease spreads through infected setts and transmitted by white flies. In the present investigation, normal set, mini sett and chip bud are planted in different growing media viz., cocopeat, vermicompost and pot mixture with addition of Pseudomonas. The results revealed that the minimum number of days (4.60) required for sprouting, maximum sprouting percentage (97.50), lengthiest roots (29.80 cm) and maximum number of roots (10.00) was recorded in Cocopeat + Chip bud and the minimum sprouting percentage (82.10) was observed in Cocopeat + Pseudomonas + Normal sett (M1S1). In this new rapid multiplication technique, tagging disease free plants and using them for propagation offers reliable solution to manage the disease as lesser quantity of setts are required for planting. In addition to the above, the planting materials of newly released varieties can be easily multiplied in large scale and supplied to the farmers.


Keywords: Cassava, Rapid multiplication technique, Sprouting, Tuber
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How to cite this article:

Pugalendhi, L. and Velmurugan, M. 2020. Standardization of Rapid Multiplication Technique (RMT) in Cassava (Manihot esculenta Crantz.).Int.J.Curr.Microbiol.App.Sci. 9(5): 3021-3025. doi: https://doi.org/10.20546/ijcmas.2020.905.359