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Open AccessArticle

Size Variability in Seed Lot Impact Seed Nutritional Balance, Seedling Vigor, Microbial Composition and Plant Performance of Common Corn Hybrids

1
A&L Biologicals, Agroecological Research Services Centre, London ON N5V 3P5, Canada
2
Department of Biology, University of Western Ontario, London ON N6A 3K7, Canada
*
Author to whom correspondence should be addressed.
Agronomy 2020, 10(2), 157; https://doi.org/10.3390/agronomy10020157
Received: 12 December 2019 / Revised: 15 January 2020 / Accepted: 20 January 2020 / Published: 22 January 2020
(This article belongs to the Section Farming Sustainability)
Soils with highly uniform textural, physical, and chemical characteristics still give rise to crop stand variability. Seed quality is one of the factors adding to yield variability and has become a concern for corn growers. Hybrid seed producers claim that their seeds provide a uniformity in crop emergence and productivity, but they do not always provide detailed studies to support this claim. Based on growers’ concerns, we examined fields planted with three different hybrid varieties and found that 25% to 50% of the stand had relatively weak vigor, where seed variety A showed 15% of seedlings with lower vigor, and varieties B and C had 30% of seedlings with low vigor. These apparent differences in plant vigor prompted us to initiate a cursory investigation to identify how seed size influenced seedling vigor and if the seedling’s microbial profile played a role in the early growth stages of three commonly grown corn hybrids in Ontario. Seeds were separated based on size, prior to conducting a growth room study. Different sizes of seeds from the same seed lot showed significant differences in vigor capacity and related biometric components. Significant differences were also found in their nutritional composition and microbial profiles within the different seed sizes and the roots and shoots of seedlings derived from such seeds. The results clearly indicate that seed size greatly impacts the plant growth and its microbiome, resulting in seedlings with different plant vigor, microbiomes, and performance. View Full-Text
Keywords: seed size; seedling vigor; nutrient content; microbiome; diversity index; corn hybrids seed size; seedling vigor; nutrient content; microbiome; diversity index; corn hybrids
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MDPI and ACS Style

Kandasamy, S.; Weerasuriya, N.; Gritsiouk, D.; Patterson, G.; Saldias, S.; Ali, S.; Lazarovits, G. Size Variability in Seed Lot Impact Seed Nutritional Balance, Seedling Vigor, Microbial Composition and Plant Performance of Common Corn Hybrids. Agronomy 2020, 10, 157. https://doi.org/10.3390/agronomy10020157

AMA Style

Kandasamy S, Weerasuriya N, Gritsiouk D, Patterson G, Saldias S, Ali S, Lazarovits G. Size Variability in Seed Lot Impact Seed Nutritional Balance, Seedling Vigor, Microbial Composition and Plant Performance of Common Corn Hybrids. Agronomy. 2020; 10(2):157. https://doi.org/10.3390/agronomy10020157

Chicago/Turabian Style

Kandasamy, Saveetha; Weerasuriya, Nimalka; Gritsiouk, Daniella; Patterson, Greg; Saldias, Soledad; Ali, Shimaila; Lazarovits, George. 2020. "Size Variability in Seed Lot Impact Seed Nutritional Balance, Seedling Vigor, Microbial Composition and Plant Performance of Common Corn Hybrids" Agronomy 10, no. 2: 157. https://doi.org/10.3390/agronomy10020157

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