The potential of priming as a method to improve the quality of aerobic rice seed

Lee, Shirley Ya Ling (2018) The potential of priming as a method to improve the quality of aerobic rice seed. Universiti Malaysia Sabah. (Unpublished)

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Abstract

Seed quality has a significant potential of increasing on-farm productivity which can be promote by priming. An experiment was conducted to study the effect of primed aerobic rice seeds on seed quality prior to storage and after storage of one month. This study was arranged in a Completely Randomized Design (CRD), with 4 replicates for each treatment. Aerobic rice seeds was treated with distilled water for 12 hour, distilled water for 24 hour, 1 % potassium nitrate for 12 hour, 1 % potassium nitrate for 24 hour, 2% potassium nitrate for 12 hour, 2% potassium nitrate for 24, 1 % sodium chloride for 12 hour, 1 % sodium chloride for 24 hour, 2% sodium chloride for 12 hour, 2% sodium chloride for 24 hour and unprimed seed act as control. After primed, the seed was dried back to its original moisture content and germination test was conducted. The remaining seed was stored in refrigerator at 2°c and 40% relative humidity for one month. After one month, the unprimed and primed aerobic rice seeds were once again subjected to germination test. The germination test was conducted for 14 days. The parameters evaluated in this study included final germination percentage, percentage of normal seeding, percentage of abnormal seedling, , plumule length, radicle length, seedling vigor index, seedling fresh weight as well as seedling dry weight. The results revealed that aerobic rice seeds treated with salt solution enhance the seed performance. Potassium nitrate gave highest final germination percentage, percentage of normal seedling, radicle length and seed vigor index meanwhile sodium chloride improve the rate of germination, plumule length, seedling fresh weight and reducing the percentage of abnormal seedling. After storage of one month, potassium nitrate gave highest result in all parameters except seedling fresh weight and seeding dry weight. This showed that potassium nitrate have excelled over all other priming agents including sodium chloride. Thus, priming the seed with potassium nitrate enhanced the seed quality and also after storage of one month.

Item Type: Academic Exercise
Uncontrolled Keywords: Rice seeds , potassium nitrate , priming
Subjects: S Agriculture > S Agriculture (General)
Divisions: FACULTY > Faculty of Sustainable Agriculture
Depositing User: Noraini
Date Deposited: 29 Nov 2019 09:59
Last Modified: 29 Nov 2019 09:59
URI: http://eprints.ums.edu.my/id/eprint/24261

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