|
Effect of priming on seed germination and rice seedling characteristics of anbarboo cultivar, under water deficit tension
|
Seyed Ali Latifi   , Heshmat Omidi * |
|
|
|
Abstract: (2486 Views) |
| This experiment was conducted to evaluate the effect of morphological and biochemical traits on dehydration tension tolerance in rice seedlings in a two -factorial factorial design in a completely randomized design with four replications in Seed Technology Laboratory of Shahed University of Tehran, in 2018. The first factor was different levels of water deficit tension including 0, -0.5 and -1 Mega Pascal with polyethylene glycol 6000 and the second factor was different levels of priming including control (seeds without hydro prime), water pre-treatment (Hydro priming), potassium nitrate 0.5 percent, Pseudomonas fluorescens (PF) strains, Bacillus subtilis (BS) bacteria strain and the combined effect of two bacteria PF × BS for 24 hours at 15ºC. Considering the results of priming experiment and water deficit tension, there was a significant effect on the studied traits. Rice seeds had a high germination percentage, most of which was observed in potassium nitrate pre-treatment at two levels of control and -0.5 Mega Pascal and the lowest of which was at 80 percent in simultaneous bacterial inoculation. Rice seeds had a high germination percentage, the highest of which was observed in the pre-treatment of potassium nitrate, at control and -0.5 Mega Pascal levels and the lowest was at 80 percent in simultaneous bacterial inoculation. Reducing germination characteristics, growth parameters, relative humidity content happened with increasing tension, as well as enhancing photosynthetic pigmentation, anthocyanin content in Substile bacteria treatment with mean (12.56) mg/g fresh weight of leaf relative to -1 Mega Pascal, proline in hydroperiming treatment with non-tension by average (8.85) mg/g fresh weight of leaves related to -1 Mega Pascal and also superoxide dismutase enzyme activity in potassium nitrate and fluorescence bacteria treatments 1342.72 and 1355.17 percent related to -1 Mega Pascal tension in increasing water deficit tension. |
|
| Keywords: Polyethylene glycol, Germination percentage, Pigment and Rice. |
|
|
Full-Text [PDF 1214 kb]
(2262 Downloads)
|
Type of Study: Applicable |
Subject:
Crop Physiology
Received: 2020/01/1 | Accepted: 2020/01/1 | Published: 2020/01/1
|
|
|
|
|
|
|
| Add your comments about this article |
|
|
|
