Seed Priming Mediated Germination Improvement and Tolerance to Subsequent Exposure to Cold and Salt Stress in Capsicum

Yadav, Patade Vikas; Kumari, Maya; Ahmed, Zakwan

doi:10.3923/rjss.2011.125.136

Cited by 120 publications

(47 citation statements)

References 19 publications

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“…Thiourea seed treatment also showed the potential to overcome salinity-induced dormancy even at lower concentrations in seeds of Allenrolfea occidentalis (Gul and Weber, 1998) and under relatively higher salt levels in Atriplex prostrata (Khan et al, 2003a) and Salicorania rubra (Khan et al, 2003b) seeds. Exposure to 1.3 mM thiourea quite effectively (up to 85%) improved the rate of germination under salt and cold stresses in capsicum seed, while the control seeds could hardly germinate (Yadav et al, 2011). The advantage of seed treatment with thiourea was not only confined to germination attributes rather it was carried to advanced growth stages.…”

Section: Seed Dormancy Break and Promotion Of Germinationmentioning

confidence: 91%

Thiourea: A Molecule with Immense Biological Significance for Plants

Wahid

Basra

Farooq

2017

IJAB

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To cite this paper: Wahid, A., S.M.A. Basra and M. Farooq, 2017. Thiourea: a molecule with immense biological significance for plants. Int. J. Agric. Biol., AbstractThiourea, also chemically named as Thiocarbamide, is a nitrogen and sulfur containing compound. It has three functional groups, amino, imino and thiol, each with important biological roles. Thiourea is being increasingly used to improve plant growth and productivity under normal and stressful conditions. Use of thiourea as seed priming agent, foliar spray or medium supplementation is more effective under environmental stress than under normal conditions. When used as seed pretreatment, thiourea increased the seed germination; while application as foliar spray improved the gas exchange properties and when used as medium supplementation, it improved the root growth and its proliferation. This indicates that thiourea is more effective in the tissues where it is applied. Although to a differential extent, thiourea is effective in improving plant growth and development under drought, salinity, heat stress and heavy metal toxicity. At physiological level, it improves the leaf gas exchange, nutrient acquisition by the root and assimilation thereafter. At biochemical level, exogenously applied thiourea improves the sugar metabolism and enhances the proteins biosynthesis. At molecular level, thiourea application modulates the pattern of gene expression regardless of the stress applied. Signaling of gene expression is a likely mechanism induced by thiourea. In a nutshell, even though considerable advancement has been made in understanding the biological roles of thiourea in modulating different mechanisms in plants, thiourea needs to be explored further for its biological roles in plants than the relevant information available thus far.

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Section: Seed Dormancy Break and Promotion Of Germinationmentioning

confidence: 91%

Thiourea: A Molecule with Immense Biological Significance for Plants

Wahid

Basra

Farooq

2017

IJAB

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“…The seed treatment using BABA and GABA significantly improved seed germination and vigor under the cold stress conditions, and made seeds to tolerate the disadvantage of the temperature and have similar behavior than in the optimal condition. Similar results were found by Yadav et al (2011) when studied the effect of seed priming on Capsicum seeds germination under temperature of 15 °C. By treating corn seeds with Penicillium sp.…”

Section: Discussionsupporting

confidence: 86%

Seed treatment with aminobutyric acids improve carrot seed germination and vigor under thermal stress conditions

Neto¹,

dos²

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Seed treatment with aminobutyric acids improve carrot seed germination and vigor under thermal stress conditions Carrots are plants adapted to different growing conditions, becoming one of the most cultivated vegetables in the world. In Brazil, it has been cultivated both in winter and summer, but extreme weather can make farmers face problems related to seed germination and plant early development, resulting in the reduction of stand and yield in the productive systems. In the vegetative stage, severe thermal stress can result in retarded growth, chlorosis and leaf necrosis, senescence and even vegetable death. At the cellular level, heat stress can lead to membrane damage, protein denaturation, inactivation of mitochondrial and chloroplast enzymes, impaired protein and carbohydrate synthesis, protein degradation, new protein synthesis, and inhibited carbon metabolism. Making crops tolerants to environmental stress are challenges faced by classical breeding and transgenic approaches and different methods are routinely experimented and applied to enhance the productivity and stress tolerance of crops. One of the simplest ways of giving tolerance to sensitive plant species involves the use of biomolecules with regulatory or stimulating roles in stressed plants, the biostimulants. Biostimulants are defined as substances that contain compounds as microorganisms, microbial inoculants, humic acids, fulvic acids, protein hydrolysates, amino acids, and seaweed extracts that stimulate natural process of plant growth. Some non-protein amino acids, such as γ-aminobutyric acid (GABA), β-aminobutyric acid (BABA) have been commonly studied by the ability of confering tolerance to abiotic stress. With this, the objective of this study was to evaluate the application of a film coating in carrot seeds composed with different rates of GABA and BABA and evaluate it effect on seed germination, emergence and vigor under heat and cold stress.

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“…Mondal et al (2011) postulated that the positive effect of rice seed priming was associated with an increase in endospermic amylase activity resulting from the increase insoluble sugar content of the primed seed. Invariably, the best priming method would depend on the type of stress the seed is exposed to (Yadav et al, 2011), as well as the genotype (Berchie et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Effect of Seed Priming on Seed Germination and Seedling Growth of Modern Rice (<i>Oryza sativa</i> L.) Varieties

2018

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The experiment was carried out in the Seed Laboratory of Bangladesh Agricultural Development Corporation (BADC), Gazipur during June to July 2014 to investigate the effects of different priming methods on seed germination and the seedling growth of some rice (Oryza sativa L.) varieties. Four rice varieties: 1) Nerica, 2) BRRI dhan51, 3) BRRI dhan41 and 4) BRRI dhan49; and six priming treatments: 1) On-farm Priming, 2) Hardening, 3) Hydro-priming, 4) Osmo-hardening, 5) Vitamin C Priming and 6) Control were used in the experiment. The experiment was laid out in a completely randomized design (CRD). The treatments were replicated three times. The germination percentage and seedling growth parameters differed significantly among the priming treatments. For germination, Nerica variety showed poor performance, whereas the other varieties were found superior. Among the priming treatments, Vitamin C priming and Osmo-hardening were found superior. In case of interaction, germination was increased with Vitamin C priming and Osmo-hardening in Nerica. For seedling growth parameters, particularly vigor index, shoot and root lengths, BRRI dhan41 and BRRI dhan51 were found superior. The priming treatment Vitamin C and Osmo-hardening performed better than others. Seedling vigor index was increased with Vitamin C priming and Osmo-hardening in Nerica variety. Shoot length at 15th day was influenced by hydro-priming in Nerica. Root length at 10th day was significantly increased with hardening in BRRI dhan41. Vitamin C priming and Osmo-hardening could therefore, be used for improving germination and seedling growth of Nerica. The Agriculturists 2018; 16(1) 34-43

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Seed Priming Mediated Germination Improvement and Tolerance to Subsequent Exposure to Cold and Salt Stress in Capsicum

Cited by 120 publications

References 19 publications

Thiourea: A Molecule with Immense Biological Significance for Plants

Thiourea: A Molecule with Immense Biological Significance for Plants

Seed treatment with aminobutyric acids improve carrot seed germination and vigor under thermal stress conditions

Effect of Seed Priming on Seed Germination and Seedling Growth of Modern Rice (<i>Oryza sativa</i> L.) Varieties

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