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Combining ability for resistance against anthracnose caused by Colletotrichum capsici (C. truncatum) and Colletotrichum gloeosporioides (C. siamense) in chili hybrids derived from maintainer line |
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| รหัสดีโอไอ | |
| Creator | Tanyarat Tarinta |
| Title | Combining ability for resistance against anthracnose caused by Colletotrichum capsici (C. truncatum) and Colletotrichum gloeosporioides (C. siamense) in chili hybrids derived from maintainer line |
| Contributor | Nawarat Pornsopin, Priyanut Chumaphai, Siriporn Earsakul, Suchila Techawongstien, Shanerin Falab, Nakarin Jeeatid, Patcharaporn Suwor |
| Publisher | Faculty of Agriculture |
| Publication Year | 2569 |
| Journal Title | Khon Kaen Agriculture Journal |
| Journal Vol. | 54 |
| Journal No. | 1 |
| Page no. | 203-214 |
| Keyword | anthracnose, resistance cultivar, general combining ability, specific combining ability |
| URL Website | https://li01.tci-thaijo.org/index.php/agkasetkaj |
| Website title | Khon Kaen Agriculture Journal |
| ISSN | 3027-6497 (Online) |
| Abstract | Anthracnose is a major disease causing the world's chili crop losses. Hybrid cultivars resistant to anthracnose are currently in demand in the chili industry. The male sterility method allows for the efficient production of hybrid seed. This study aimed to assess the general combining ability (GCA) and specific combining ability (SCA) of resistance against anthracnose caused by Colletotrichum capsic (C. truncatum) i and Colletotrichum gloeosporioides (C. siamense) in chili hybrids and their parents. Nine hybrids were evaluated for anthracnose susceptibility compared with their parents using a randomized complete block design (RCBD) with 3 replications and 15 plants per replication. Fifteen fruits at the mature green stage and fifteen fruits at the mature red stage were harvested per entry and inoculated with spore suspensions of C. capsici (C. truncatum) and C. gloeosporioides (C. siamense) using the microinjection method. The results showed that the parental lines with high GCA values for yield and low or negative GCA values for disease severity were the female lines (B-lines) MS25 and the male lines (C-lines) AT1-15 and AT3-15. These lines are considered suitable parents for the development of hybrids with high anthracnose resistance and good yield performance. Furthermore, these three parental lines produced hybrid combinations with high SCA values for yield and low SCA values for disease severity, namely UBB/AT3-15, MS25/AT5-12, and MS25/AT1-15, which exhibited strong potential for both high yield and anthracnose resistance. |
