دورية أكاديمية
Genotypic variation in cardinal temperatures and thermal time for germination and seedling emergence of pigeonpea (Cajanus cajan [L.] Millsp.)
| العنوان: | Genotypic variation in cardinal temperatures and thermal time for germination and seedling emergence of pigeonpea (Cajanus cajan [L.] Millsp.) |
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| المؤلفون: | Sabampillai Mahendraraj, Marisa Collins, Yash Chauhan, Vincent Mellor, Rao C. N. Rachaputi, Richard Erickson |
| المصدر: | Experimental Results, Vol 2 (2021) |
| بيانات النشر: | Cambridge University Press, 2021. |
| سنة النشر: | 2021 |
| المجموعة: | LCC:Technology LCC:Medicine LCC:Science |
| مصطلحات موضوعية: | base temperature, bent-stick model, thermal gradient plate, Technology, Medicine, Science |
| الوصف: | In this study, we define the cardinal temperatures and thermal time for germination and emergence of pigeonpea genotypes. Seeds of six genotypes were subjected to constant temperatures ranging between 5 and 50°C in petri dishes with filter paper (germination) and with media (emergence) were placed in a thermal gradient plate. A nonlinear bent-stick model fitted to the rate of development to germination and emergence resulted in parameters predicting cardinal temperatures including base (Tb), optimum (To), maximum (Tm), and thermal time. Estimated Tb for 50% germination and emergence were 8.4 and 10.8°C, respectively, with no significant differences between genotypes. Optimum temperatures were 33.8 and 37.9°C for germination and emergence, respectively, with genotypes differing significantly. Thermal time for 50% germination and emergence varied significantly among genotypes. The results suggest that genotypic responses to the temperature are typical for their tropical origin and hence their suitability for cropping in summer dominant rainfall regions insubtropical Australia. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2516-712X |
| Relation: | https://www.cambridge.org/core/product/identifier/S2516712X21000319/type/journal_article; https://doaj.org/toc/2516-712X |
| DOI: | 10.1017/exp.2021.31 |
| URL الوصول: | https://doaj.org/article/e566c951b3f24d0c9f6c839247816768 |
| رقم الأكسشن: | edsdoj.566c951b3f24d0c9f6c839247816768 |
| قاعدة البيانات: | Directory of Open Access Journals |
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