Franalyne Lyenang, Luing and Hollena, Nori (2023) Cardinal Temperatures and Thermal Time for Germination of Sarawak Traditional Rice. Malaysian Applied Biology, 52 (6). pp. 1-10. ISSN 2462-151X (In Press)
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Abstract
Germination of two rice landraces, namely Bario Sederhana and Biris, was determined from twelve temperatures (12.5 – 40 ºC) in a series of incubation experiments. The cardinal temperatures and thermal time for germination were estimated from a ‘broken-stick’ linear model. Both landraces had a Tb of 10 ºC, Topt between 32 – 33 ºC, and Tmax of 43 ºC. At the sub-optimal temperatures, the thermal time for germination was 62 oCd for Bario Sederhana and 53 ºCd for Biris. Within the supra-optimal range (Topt to Tmax), both landraces required 27-29 ºCd for seed germination. The maximum final germination for Bario Sederhana was 93% at 30 ºC while Biris had 100% seeds population germinated at 27.5 ºC.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Development, growing degree days, linear model, Oryza sativa, paddy. |
| Subjects: | S Agriculture > S Agriculture (General) |
| Divisions: | Academic Faculties, Institutes and Centres > Faculty of Resource Science and Technology Faculties, Institutes, Centres > Faculty of Resource Science and Technology |
| Depositing User: | Nori |
| Date Deposited: | 22 Dec 2023 08:02 |
| Last Modified: | 22 Dec 2023 08:02 |
| URI: | http://ir.unimas.my/id/eprint/43852 |
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