Muldoon, D.K. and Pearson, C.J. and Wheeler, J.L. (1982) The effect of temperature on growth and development of Echinochloa millets. Annals of Botany, 50 (5). pp. 665-672.
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Abstract
Accumulation of dry wt. and leaf plus stem area were measured in E. utilis and E. frumentacea grown at temp. regimes from 15/10 to 33/28 deg C (day/night). Tillering and ht. were recorded in addition to leaf number which was subsequently used as a developmental index. In both spp. shoot dry wt. increased with temp. up to 33/28 deg ; the increase in relative growth rate (RGR) was negligible above 27/22 deg . Below 27/22 deg the RGR of E. frumentacea decreased sharply and at 15/10 deg it made no effective growth. At low temp. the RGR of E. frumentacea was lower than that of E. utilis due to slow leaf area expansion, and in particular smaller individual leaves. E. frumentacea tillered more than E. utilis. Plant development was retarded at low temp. but was not as responsive to temp. as dry wt. and leaf area. The different responses to temp. of the 2 spp. were described in equations suitable for inclusion in predictive growth models
| Item Type: | Article |
|---|---|
| Author Affiliation: | Agric. Res. Cent., Trangie, N.S.W., Australia 2823. |
| Subjects: | Atmosperic Science > Climatology Crop Improvement |
| Divisions: | Millet |
| Depositing User: | Mr B Krishnamurthy |
| Date Deposited: | 24 Jul 2012 11:45 |
| Last Modified: | 24 Jul 2012 11:45 |
| Official URL: | http://aob.oxfordjournals.org/content/50/5/665.abs... |
| URI: | http://eprints.icrisat.ac.in/id/eprint/6927 |
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