Breeding for Prolificacy, Total Carotenoids and Resistance to Downy Mildew in Small-Ear Waxy Corn by Modified Mass Selection
| Autor: | Khomsorn Lomthaisong, Sompong Chankaew, Thomas Lübberstedt, Jirawat Sanitchon, Supaporn Sukto, Khundej Suriharn, Kamol Lertrat, Shanerin Falab |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
chemistry.chemical_classification
Waxy corn lutein education.field_of_study prolific corn Resistance (ecology) Population food and beverages Agriculture Orange (colour) Biology biology.organism_classification disease assessment Zeaxanthin chemistry.chemical_compound Horticulture zeaxanthin chemistry breeding Downy mildew education Agronomy and Crop Science Carotenoid Selection (genetic algorithm) |
| Zdroj: | Agronomy, Vol 11, Iss 1793, p 1793 (2021) Agronomy Volume 11 Issue 9 |
| ISSN: | 2073-4395 |
| DOI: | 10.3390/agronomy11091793 |
| Popis: | The study aimed to improve the small-ear waxy corn populations for prolificacy, high total carotenoid content and resistance to downy mildew. Three cycles of modified mass selection were carried out for population improvement. Forty-four genotypes derived from eight C3 populations and six check varieties were evaluated for agronomic traits and yield at Khon Kaen and screened for downy mildew resistance in the rainy season 2020 at two experimental sites in Ban Phang district of Khon Kaen province. Fifty genotypes were clustered into six major groups based on color parameter (h°) and total ear number. Two selected groups (C and E) with two populations of small-ear waxy corn including Nei9008/BK-24-9-B and TY/TF-33-1-B were selected as they were resistant to downy mildew, prolific ears, and intense orange kernel color. Modified mass selection was effective for improvement of multiple traits in waxy corn. |
| Databáze: | OpenAIRE |
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