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Reaction of Cotton to 2,4-D at Different Concentrations |
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| รหัสดีโอไอ | |
| Creator | Korntong Poungprakhon |
| Title | Reaction of Cotton to 2,4-D at Different Concentrations |
| Contributor | Prasert Intanai, Atinya Pamornchan, Chliew Distsantia |
| Publisher | Department of Agriculture |
| Publication Year | 2540 |
| Journal Title | Thai Agricultural Research Journal |
| Journal Vol. | 15 |
| Journal No. | 2 |
| Page no. | 87-93 |
| Keyword | herbicide injury, recovery time |
| URL Website | https://at.doa.go.th/journal |
| Website title | Thai Agricultural Research Journal |
| ISSN | 0125-8389 |
| Abstract | Pot trials were conducted to determine effect of 2,4 -D on cotton and recovery time of injured crops. Cotton was defined as tolerate to 2,4-D if yield reduction was less than 20%. Results in dicated that foliar spraying of 2,4-D as Na salt in solution induced abnormal development of cotton leaves, squaes, flowers, bolls and stem. Cotton yield reduction due to 2,4-D differed greatly between 2,4-D concentration and cotton growth stage.rnSpraying at juvenile stage, cotton did not tolerate to 2,4-D at 10 ppm or higher. Spraying at squaring stage, the crop could tolerate to 2,4-D at 10 ppm but not higher concentration. Spraying at flowering or boll development stage, the crop could tolerate to 2,4-D at 10-100 ppm but not at higher concentration. Recovery time of cotton treated with 10 ppm of 2,4-D was noted as 33, 42 and 34 days for juvenile, squaring and flowering stages respectively. Recovery time slightly increased with 2,4-D rates from 10 to 200 ppm. |
