| 摘要 |
Disclosed are methods of enhancing growth of corn plants, comprising treating corn seed or the corn plant that germinates from the seed with an effective amount of at least one chitooligosaccharide, wherein upon harvesting the corn plant exhibits at least one of increased plant yield measured in terms of bushels/acre, increased root number, increased root length, increased root mass, increased root volume and increased leaf area, compared to untreated corn plants or corn plants harvested from untreated corn seed. |
| 主权项 |
1. A composition comprising at least one chitooligosaccharide (CO) in an agriculturally acceptable carrier,
wherein said at least one CO comprises at least one CO represented by the formula:wherein R1 represents hydrogen or methyl; R2 represents hydrogen or methyl; R3 represents hydrogen, acetyl or carbamoyl; R4 represents hydrogen, acetyl or carbamoyl; R5 represents hydrogen, acetyl or carbamoyl; R6 represents hydrogen, arabinosyl, fucosyl, acetyl, sulfate ester, 3-0-S-2-0-MeFuc, 2-0-MeFuc, or 4-0-AcFuc; R7 represents hydrogen, mannosyl or glycerol; R8 represents hydrogen, methyl, or —CH2OH; R9 represents hydrogen, arabinosyl, or fucosyl; R10 represents hydrogen, acetyl or fucosyl; and n represents 0, 1, 2 or 3; and
wherein said at least one CO is present at a concentration suitable for enhancing plant growth when corn seed treated with said composition is planted and grown in a soil. |
