Pre-sowing Seed Treatments in Direct-seeded Early Rice: Consequences for Emergence, Seedling Growth and Associated Metabolic Events under Chilling Stress

Scientific Reports
Weiqin WangLixiao Nie

Abstract

Double direct-seeding for double rice cropping is a simplified, labor saving, and efficient cropping system to improve multiple-crop index and total rice production in central China. However, poor crop establishment of direct-seeded early rice due to chilling stress is the main obstacle to wide spread of this system. A series of experiments were conducted to unravel the effects of pre-sowing seed treatments on emergence, seedling growth and associated metabolic events of direct-seeded early rice under chilling stress. Two seed priming treatments and two seed coating treatments were used in all the experiments. A non-treated control treatment was also maintained for comparison. In both the field and growth chamber studies, seed priming with selenium or salicylic acid significantly enhanced the emergence and seedling growth of rice compared with non-treated control. Nevertheless, such positive effects were not apparent for seed coating treatments. Better emergence and vigorous seedling growth of rice after seed priming was associated with enhanced α-amylase activity, higher soluble sugars contents, and greater respiration rate in primed rice seedlings under chilling stress. Taking together, these findings may provide new avenues ...Continue Reading

References

Jul 21, 2005·Journal of Trace Elements in Medicine and Biology : Organ of the Society for Minerals and Trace Elements (GMS)·Helinä Hartikainen
May 1, 1972·Plant Physiology·E P Palmiano, B O Juliano
Apr 21, 2007·Journal of Zhejiang University. Science. B·Guo-zhang KangGu-chou Sun
Feb 19, 2015·Biological Trace Element Research·Abdul KhaliqHafeez ur Rehman

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Citations

Jul 6, 2018·Plant, Cell & Environment·Margarete BaierJörn van Buer
Mar 1, 2018·Frontiers in Plant Science·Weiqin WangLixiao Nie
Oct 19, 2019·Journal of Experimental Botany·Ayelén GázquezGerrit T S Beemster
May 8, 2021·Biological Reviews of the Cambridge Philosophical Society·Ashish Kumar SrivastavaPenna Suprasanna
Jul 3, 2021·International Journal of Molecular Sciences·Sachiko MatsunagaHisashi Tsujimoto

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BETA
environmental stresses

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HOBO

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