ROLE OF SEED TREATMENT AND STORAGE CONTAINER ON SEED LONGEVITY OF MALE PARENTAL LINE UMI 1230 IN MAIZE HYBRID COH (M)6

G. GOPALAKRISHNAN¹*, K. SUNDARALINGAM^2
1Department of Seed Science and Technology, Tamil Nadu Agricultural University, Coimbatore, 641003, Tamil Nadu, India
²Department of Seed Science and Technology, Tamil Nadu Agricultural University, Coimbatore, 641003, Tamil Nadu, India
* Corresponding Author : gkrishnaagri@gmail.com

Received : 14-10-2018     Accepted : 26-10-2018     Published : 30-10-2018
Volume : 10     Issue : 20       Pages : 7381 - 7384
Int J Agr Sci 10.20 (2018):7381-7384

Keywords : Maize hybrid, Parental line UMI 1230, Seed treatment, Storage container, Germination, Vigour
Conflict of Interest : None declared
Acknowledgements/Funding : Author thankful to the University Grants Commission, New Delhi for providing funds in the name of Rajiv Gandhi National Fellowship for PhD Research. Author also thankful to Department of Seed Science and Technology, Tamil Nadu Agricultural University, Coimbatore, 641003, Tamil Nadu, India
Author Contribution : All author equally contributed

Investigations were conducted to assess the viability and vigour potential of male parental line (UMI 1230) in maize hybrid COH (M) 6 seeds obtained from the Agricultural Research Station, Bhavanisagar, Tamil Nadu Agricultural University, Coimbatore. The initial seed qualities of male parental line (UMI 1230) in maize hybrid COH (M) 6 were analysed and after, the seeds were subjected to different seed treatments viz.,Halopolymer @ 4 ml kg-1, Halogenation mixture @ 3 g kg-1, Carbendazim @2 g kg-1. Untreated seeds served as Control. The seeds were packed in cloth bag and 700 gauge thick polythene containers and stored in ambient condition. Seed samples were tested for its physiological parameters viz., germination %, seedling length, vigor index and electrical conductivity at bimonthly intervals. The results revealed that male parental line (UMI 1230) in maize hybrid COH (M) 6 seeds treated with halogenation mixture @ 3 g kg-1 maintained the germination and vigour potential of seeds up to 10 months of storage than halopolymer @ 4 ml kg-1. Moisture proof container of 700 gauge thick polythene bag performed better storer than cloth bag which reflected by the changes in electrical conductivity.

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