Seed priming enhances seed germination and plant growth in four neglected cultivars of Capsicum annuum L.

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Plant Biology

Main article text

 

Introduction

Materials and Methods

Plant material

Priming treatments

Seed vitality assessment

Germination and growth

where n is the number of seeds germinated on day D and D is the number of days counted from the start of germination at each count. The denominator is the summation of the seeds germinated at each count; therefore, it is equal to the total number of germinated seeds.

Morphological observations

Total antioxidants

Protein content

Data analysis

Results

Seed vitality and germination

Morphological observation

Indexes related to germination performance

Antioxidant efficacy

Protein content

Discussion

Conclusion

Supplemental Information

Seed vitality test.

Pepper seeds (cut in half) stained by tetrazolium solution: a,b) Control seeds, a) viable and vigorous, b) viable non-vigorous; c,d) Priming with KNO3 6% 96h , c) viable and vigorous, d) viable non-vigorous; e,f)Acid priming with HCl at two different times, e) 5’ non-viable; f)10’ non-viable.

DOI: 10.7717/peerj.18293/supp-1

Summary of the general linear models (GLMs) testing for main and interactive effects of cultivar (CV), Treatments and Time for the viables.

MGT, morphological data, SVI, DGI and T50. P-values < 0.05 are reported in italic.

DOI: 10.7717/peerj.18293/supp-2

Additional Information and Declarations

Competing Interests

Fiore Capozzi and Valeria Spagnuolo are Academic Editors for PeerJ. Riccardo Riccardi and Patrizia Spigno are employed by Cooperativa ARCA 2010.

Author Contributions

Angelo Granata conceived and designed the experiments, performed the experiments, prepared figures and/or tables, authored or reviewed drafts of the article, and approved the final draft.

Fiore Capozzi performed the experiments, analyzed the data, prepared figures and/or tables, authored or reviewed drafts of the article, and approved the final draft.

Anna Gaglione performed the experiments, authored or reviewed drafts of the article, and approved the final draft.

Riccardo Riccardi performed the experiments, prepared figures and/or tables, and approved the final draft.

Patrizia Spigno performed the experiments, prepared figures and/or tables, and approved the final draft.

Simonetta Giordano conceived and designed the experiments, prepared figures and/or tables, authored or reviewed drafts of the article, and approved the final draft.

Maria Cristina Sorrentino performed the experiments, authored or reviewed drafts of the article, and approved the final draft.

Valeria Spagnuolo conceived and designed the experiments, analyzed the data, prepared figures and/or tables, authored or reviewed drafts of the article, and approved the final draft.

Data Availability

The following information was supplied regarding data availability:

The raw data are available in the Supplemental File.

Funding

This work was supported by the Dept. of Biology, Federico II University. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

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