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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 2018: 95.39
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39
For more details click here

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Original Research Articles

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(8): 3304-3310
DOI: https://doi.org/10.20546/ijcmas.2020.908.378


Evaluation of seed setting aggregatum onion (Allium cepa var. aggregatum) types under Tamil Nadu conditions
L. Pugalendhi, K. Shoba Thingalmaniyan and M. Velmurugan*
Horticultural College and Research Institute, Tamil Nadu Agricultural University,Coimbatore - 641 003, India
*Corresponding author
Abstract:

Multiplier onion or Aggregatum onion (Allium cepa var. aggregatum) is one of the important bulbous vegetable cultivated in India. Onion is mainly propagated through bulbs and approximately 1000 kg of bulb is required for planting in one hectare of area. Huge quantities of onion bulbs are wasted for propagation purpose. By switching over from bulb propagation method to seed, there is a saving of seed bulb to a tune of 1000 kg/ha.  As Aggregatum onion is being cultivated in 30,000 hectares in Tamil Nadu, a saving of 30,000 tonnes bulbs could be obtained. In addition to this, the bulbs must be bolder in size with attractive pink in colour for consumer attraction. Considering the bottlenecks, breeding programme was initiated to develop a seed setting onion type with attractive pink coloured bulbs to meet the demands of domestic and export markets. Based on the results of different phases of evaluation, the overall performance of Aggregatum onion culture Aca 15 is better for the highest mean yield per hectare (19.10 t) when compared (15.10 t) to the check variety Co (On)5 and the per cent increase over CO(On) 5 (Check) is 20.94. The organoleptic evaluation was done based on nine point hedonic scale. Based on the organoleptic test, Aca15 recorded maximum score 9 points for colour and flavour and 8 points appearance, texture and taste. However, the check variety Co(On)5 recorded 7 points for colour, appearance, texture and taste. The bulbs are bolder in size, attractive pink in colour. Each clump has 5 - 7 bulblets. Dry pinkish scale leaves are arranged compactly on the bulbs and bulblets and moderately resistant to purple blotch disease and thrips under field condition. Considering the best performance on bulb yield and quality Aca15 is released as CO 6 during 2020 for the benefit of onion growing regions of Tamil Nadu and other South Indian states.


Keywords: Aggregatum, onion, CO 6, Seed, Bulb
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How to cite this article:

Pugalendhi, L., K. Shoba Thingalmaniyan and Velmurugan, M. 2020. Evaluation of seed setting aggregatum onion (Allium cepa var. aggregatum) types under Tamil Nadu conditions.Int.J.Curr.Microbiol.App.Sci. 9(8): 3304-3310. doi: https://doi.org/10.20546/ijcmas.2020.908.378