02771naa a2200277 a 450000100080000000500110000800800410001902200140006002400340007410000170010824501230012526000090024850005750025752013890083265300150222165300220223665300100225865300210226865300150228965300140230470000140231870000150233270000200234770000130236777301130238010639662023-03-15       2023    bl uuuu     u00u1 u    #d  a2073-43957 a10.3390/agronomy130306582DOI1 aDO CANTO, J.  aErgot and sterility in Bahiagrassbgenotypic and environmental effects on seed yield potential.h[electronic resource]  c2023  aArticle history: Received 24 November 2022; Revised 19 February 2023; Accepted 21 February 2023; Published 24 February 2023. -- Correspondence author: Daniel Real, email: daniel.real@dpird.wa.gov.au -- This article belongs to the Section Crop Breeding and Genetics (https://www.mdpi.com/journal/agronomy/sections/crop_breeding_genetics ). -- LICENSE: Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). --  aABSTRACT.- Ergot disease (Claviceps paspali) and sterility have the potential to reduce seed yield in bahiagrass (Paspalum notatum Fluggé). Our objective was to determine the genotypic and environmental effects on seed yield, and the levels of ergot and sterility. Seventeen genotypes were evaluated in three locations across two years for seed yield, ergot severity, and total seed fractions (percentage of full seeds, ergot sclerotia and empty seeds). The percentage of full seeds and total seed yield were correlated (r = 0.52) but both were negatively correlated with the percentage of ergot sclerotia (r = -0.81 and -0.51). Empty seeds were negatively correlated with full seeds (r = -0.39), but not with ergot sclerotia and total seed yield. The genotype effect was significant for total seed yield and severity of infection with large heritabilities (H2 = 0.92 and 0.86) but had no effect on the percentage of the seed fractions. Location and the interaction with genotype explained most of the variation in the percentage of the seed fractions and their weight. Ergot and sterility were significant detrimental factors, genotype was a major determinant of ergot levels and seed yield, while non-genetic factors were co-determinants in constructing the seed yield potential but were the main determinants of the yield potential realization.  Copyright: © 2023 by the authors.  aBahiagrass  aClaviceps paspali  aErgot  aPaspalum notatum  aSeed yield  aSterility1 aREYNO, R.1 aOBERTI, H.1 aDALLA RIZZA, M.1 aREAL, D.  tAgronomy, 2023, volume, 13, issue 3, Article 658. OPEN ACCESS. doi: https://doi.org/10.3390/agronomy13030658