Simulation of tri-factorial interactive effects on the seed germination behaviors of medicinal plant Cassia fistula L. | ||||
| Assiut University Journal of Multidisciplinary Scientific Research | ||||
| Volume 51, Issue 1, January 2022, Page 71-88 PDF (996.11 K) | ||||
| DOI: 10.21608/aunj.2022.219658 | ||||
 View on SCiNiTO | ||||
| Abstract | ||||
| The effects of sodicity, osmotic water potential {Ψs}, temperature and their interaction on the seed germination processes of the medicinal tree Cassia fistula was carried out. The present data indicated that, the radicle emergence was greatly affected by the interaction between incubated temperature and sodicity {T × SAR}, but Ψs had a non-significant effect. Regardless of sodicity, the optimal temperature produced a maximum value on the germination rate index under relatively high Ψs. Conspicuously, the Ψs had a predominant role in the elongation of both radicle and hypocotyl. The same effect of Ψs on the fresh biomass of embryonic axis organs and storage tissue of seedlings was true, whereas, the temperature effect had a sub- dominant role. The moderate Ψs and sodicity levels exerted high biomass accumulation efficiency under the optimal temperature. At the same temperature, the seedling vigor index was reached to the highest value at sodicity level {20%} and moderate Ψs. The correlation between the seedling water content and germination characteristics were discussed. | ||||
| Keywords | ||||
| Accumulation efficiency; C. fistula; Ψs; Seed germination; Sodicity; Temperature; Vigor | ||||
|
Statistics Article View: 174 PDF Download: 168 |
||||
