We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
SEED SOAKING WITH SODIUM SILICATE PRIMES SALT TOLERANCE IN RICE (ORYZA SATIVA L.) SEEDLINGS WITHOUT ANY NEGATIVE EFFECT ON GROWTH.
- Authors
XU, C. C.; ZHANG, Q. R.; HU, L.; WANG, R. M.; SHI, Q.; CHEN, J.; SONG, Y. Y.; CHEN, D. M.; ZENG, R. S.; SUN, Z. X.
- Abstract
Rice is one of the most important cereal crops and is susceptible to salinity stress. To enhance biotic and abiotic stress tolerance in crops, the application of silicon (Si) during seedling culture and seed priming are two effective approaches. However, whether seed priming with silicon can enhance salinity stress tolerance in rice seedlings, and what the optimal concentration of Si treatment is largely unclear. In this study, rice seeds were pretreated with sodium silicate, and the hydroponically grown rice seedlings were exposed to sodium chloride. Our results show that seed soaking with Si can significantly improve the growth of rice seedlings under salinity-stress, as evidenced by enhanced fresh weight, dry weight, leaf relative water content, photosynthetic pigment level, soluble protein content, as well as the activities of POD and SOD enzymes. Moreover, Si-pretreated seeds showed accelerated seed germination, increased seedling height and reduced root length. Furthermore, qRT-PCR analysis showed that seed soaking with Si induced the transcription of genes encoding Na+/H+ exchangers and H+-pyrophosphatase. Our results imply that seed priming with Si enhances seedling tolerance to salinity stress without negative effect on growth and it can be used as an effective strategy.
- Subjects
RICE; RICE seeds; SEEDS; PHOTOSYNTHETIC pigments; SOLUBLE glass; GERMINATION; SEEDLINGS
- Publication
Applied Ecology & Environmental Research, 2020, Vol 18, Issue 4, p5425
- ISSN
1589-1623
- Publication type
Article
- DOI
10.15666/aeer/1804_54255436