EFFECTIVE METHODS FOR DORMANCY BREAKING OF 15 NEW-IMPROVED RICE VARIETIES TO ENHANCE THE VALIDITY OF GERMINATION TEST

Yuningsih, Aida F. V. and Sri , Wahyuni (2016) EFFECTIVE METHODS FOR DORMANCY BREAKING OF 15 NEW-IMPROVED RICE VARIETIES TO ENHANCE THE VALIDITY OF GERMINATION TEST. In: Proceeding ISEPROLOCAL. Badan Penerbitan Fakultas Pertanian Universitas Bengkulu, Bengkulu, Indonesia, pp. 166-173. ISBN 9786029071184

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Abstract

Dormancy is acharacteristic of seeds, which is genetically inherited and is an important factor in the germination of seeds. Dormancy in rice serves as a mechanism of survival by protecting the seed from germinating in the mother-plants, however it becomes a problem in germination evaluation as part of seed quality testing when methods for overcoming dormancy is not effective.Seven different treatments were used to determine seed dormancy of 15 new improved-varieties. Results showed all varieties tested have a diversity of dormancies. A total of 15 varieties showed intensity of dormancy varied between 47-98%.Persistency of dormancy of the 15 varieties ranged between 2-8 weeks. At the beginning of seed storage (0 week), the results showed that 14 out of 15 varieties treated by drying at temperature of 50oC for 48 h and continued by soaking the seeds in 10 ppm GA3 solution for 24 h gave means value of seed germination ≥85%, whereas the control seeds of 15 tested varieties showed means value of germination below 60%. This method of breaking seed dormancy is considered to be effective and available to be used by seed analysts on rice seed germination testing specifically for those 14 varieties tested.

Item Type: Book Section
Subjects: S Agriculture > S Agriculture (General)
Divisions: Faculty of Agriculture > Department of Animal Science
Depositing User: 001 Bambang Gonggo Murcitro
Date Deposited: 24 May 2016 15:03
Last Modified: 24 May 2016 15:03
URI: http://repository.unib.ac.id/id/eprint/11326

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