Seed Dormancy is a Necessary Phenomenon in Groundnut
Narendra Kumar*
ICAR- Directorate of Groundnut Research, Ivnagar Road, PB No.5, Junagadh, Gujarat (362 001), India
Ajay B.C.
ICAR- Directorate of Groundnut Research, Ivnagar Road, PB No.5, Junagadh, Gujarat (362 001), India
S.K. Bishi
ICAR- Indian Institute of Agricultural Biotechnology, Garhkhatanga, Ranchi, Jharkhand (834 010), India
Gangadhara K.
ICAR- Directorate of Groundnut Research, Ivnagar Road, PB No.5, Junagadh, Gujarat (362 001), India
Praveen Kona
ICAR- Directorate of Groundnut Research, Ivnagar Road, PB No.5, Junagadh, Gujarat (362 001), India
Kirti Rani
ICAR- Directorate of Groundnut Research, Ivnagar Road, PB No.5, Junagadh, Gujarat (362 001), India
Raja Ram Choudhary
ICAR- Directorate of Groundnut Research, Ivnagar Road, PB No.5, Junagadh, Gujarat (362 001), India
DOI: NIL
Keywords: Fresh seed dormancy, Groundnut, Oilseed, Spanish bunch
Abstract
Groundnut is an important oilseed crop grown throughout the year. Groundnut having three types of growth habit, Spanish and Valencia habit types does not have fresh seed dormancy, while Virginia types having longer seed dormancy. Lack of seed dormancy in the Spanish bunch and Valencia varieties have a major problem of in-situ germination resulting from unpredictable rainfall at crop maturity while prolonged seed dormancy in Virginia types prevents farmers to use own seed immediately after harvest for sowing purpose and also having longer duration than Spanish bunch cultivars. Therefore, Spanish bunch cultivars are most suitable because of fit well in the kharif, rabi and summer seasons with at least three week fresh seed dormancy to avoid pod losses due to unpredictable rainfall at the time harvesting.
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Reference
Bandyopadhyay, A., Nautiyal, P.C., Radhakrishnan, T., Gor, H.K., 1999. Role of testa, cotyledons and embryonic axis in seed dormancy of groundnut (Arachis hypogaea L.). Journal of Agronomy and Crop Science 182, 37-41.
Gowda, K.S.J., Siddaraju, R., Narayanaswamy, K.C., Manjunath, H., Mahesh, H.M., 2015. Induction of Dormancy in Non Dormant Groundnut cv. KCG 2. Trends in Biosciences 8(22), 6289-6294.
Sengupta, U.K., Pandey, M., Sirohi, G.S., 1979. Effect of growth regulators on seed germination in; groundnut: Interaction studies. Seed Research 7(2), 114-119.
Sharma, A., Ghosh, B.K., Sengupta, U.K., 1987. Effect of ABA and kinetin on fat and protein degradation during imbibition of dormant and non-dormant groundnut seeds. Indian Journal of Plant Physiology 30(4), 420-424.
Shobha, K.V., Renugadevi, J., Jerlin, R., 2020. Studies on Seed Dormancy and Breaking Methods in Groundnut. Madras Agric. J. 107(4/6), 131-135. doi:10.29321/MAJ.2020.000357.