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| Web URL(s): | https://scisoc.confex.com/scisoc/2020am/meetingapp.cgi/Paper/127063
Last checked: 03/29/2021
Requires: PDF Reader |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Gouveia, Beatriz T.;
Raymer, Paul;
Schwartz, Brian;
Kenworthy, Kevin E.;
Unruh, J. Bryan;
Fontanier, Charles;
Porto, Antonio C.M.;
Rios, Esteban F.;
Milla-Lewis, Susana R. |
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| Author Affiliation: | Gouveia and Milla-Lewis: North Carolina State University, Raleigh, NC; Raymer and Schwartz: University of Georgia, Athens, GA; Kenworthy, Unruh, and Rios: University of Florida, Gainesville, FL; Fontanier: Oklahoma State University, Stillwater, OK; Porto: Universidade Federal de Lavras, Lavras, MG, BRA. |
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| Title: | Performance and genotype-by-environment interaction in seashore paspalum (Paspalum vaginatum) evaluated under shade conditions |
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| Section: | Turf physiology, molecular biology, and genetics poster (includes student presentation)
Other records with the "Turf physiology, molecular biology, and genetics poster (includes student presentation)" Section
C05 Turfgrass Science
Other records with the "C05 Turfgrass Science" Section
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| Meeting Info.: | San Antonio, Texas: November 10-13, 2019 |
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| Source: | ASA, CSSA and SSSA International Annual Meetings. November 9-13 2020, p. [1]. |
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| Publishing Information: | [Madison, Wisconsin]: [American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America] |
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| # of Pages: | 1 |
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| Abstract/Contents: | "SHADE, LIKE THAT CAUSED FOR EXAMPLE BY TREES AND BUILDINGS, CAN AFFECT THE QUALITY AND GROWTH OF TURFGRASSES. THUS, BREEDING FOR SHADE TOLERANCE IS AN ESSENTIAL COMPONENT OF MOST TURFGRASS IMPROVEMENT PROGRAMS. THE OBJECTIVE OF THIS STUDY WAS TO EVALUATE THE PERFORMANCE OF SEASHORE PASPALUM BREEDING LINES UNDER SHADE CONDITIONS IN MULTI-ENVIRONMENT TRIALS. GERMPLASM SOURCES WERE 20 LINES FROM THE UNIVERSITY OF GEORGIA (UGA) SEASHORE PASPALUM BREEDING PROGRAM AND TWO CHECKS, THE CULTIVARS SEADWARF AND SEASTAR. FIELD TRIALS WERE CONDUCTED FROM 2016 TO 2019 UNDER STRUCTURES FOR REDUCING THE AMBIENT SUNLIGHT AT THREE LOCATIONS: CITRA (FLORIDA), TIFTON (GEORGIA) AND RALEIGH (NORTH CAROLINA). TRIALS WERE ARRANGED AS RANDOMIZED COMPLETE-BLOCK DESIGNS WITH TWO REPLICATES IN RALEIGH AND THREE REPLICATES AT THE OTHER LOCATIONS. THE RESPONSE VARIABLES EVALUATED WERE PERCENT LIVING GROUND COVER (%GC), DARK GREEN COLOR INDEX (DGCI), CANOPY HEIGHT (CH) AND TURFGRASS QUALITY (TQ) (NTEP RATINGS FROM 1 TO 9). DATA WERE ANALYZED BY MIXED MODEL APPROACHES USING ASREML-R AND THE BEST LINEAR UNBIASED PREDICTOR (BLUP) SIGNIFICANCE WAS VERIFIED BY STUDENTIZED BLUP (T-BLUP). SIGNIFICANT GENETIC VARIANCES WERE OBSERVED IN THE SINGLE-LOCATION-REPEATED-MEASURES ANALYSIS FOR CH AND DGCI AT CITRA AND TIFTON, %GC AT CITRA, AND TQ AT RALEIGH. HERITABILITY VALUES RANGED FROM NULL (0.00) TO MODERATE (0.55) FOR %GC, FROM MODERATE (0.69) TO HIGH (0.88) FOR DGCI, FROM LOW (0.34) TO HIGH (0.83) FOR CH, AND FROM NULL (0.00) TO MODERATE (0.62) TO TQ . SPEARMAN CORRELATIONS OF PREDICTED VALUES FOR ENTRIES BETWEEN LOCATIONS RANGED FROM LOW TO MODERATE, WITH THE EXCEPTION OF CITRA-TIFTON (0.73) FOR CH. SOME EXPERIMENTAL LINES PERFORMED BETTER THAN CHECKS IN ALL SIGNIFICANT TRAITS BY LOCATIONS. IN CONCLUSION, GENETIC VARIABILITY WAS OBSERVED FOR ALL TRAITS AND SUPERIOR SEASHORE PASPALUM BREEDING LINES FOR MULTIPLE TRAITS WERE IDENTIFIED UNDER SHADE CONDITIONS." |
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| Language: | English |
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| References: | 3 |
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| Note: | This item is an abstract only!
Maps
Pictures, color
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Gouveia, B. T., P. Raymer, B. Schwartz, K. E. Kenworthy, J. B. Unruh, C. Fontanier, et al. 2020. Performance and genotype-by-environment interaction in seashore paspalum (Paspalum vaginatum) evaluated under shade conditions. Agron. Abr. p. [1]. |
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| Web URL(s):
https://scisoc.confex.com/scisoc/2020am/meetingapp.cgi/Paper/127063
Last checked: 03/29/2021
Requires: PDF Reader |
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