The present invention provides a plant growth regulation composition for enhancing plant drought tolerance containing (A) oligofructose and (B) water-soluble chitosan, which not only enhances the drought tolerance index for plant, but also increases the plant productivity. The present invention may further contain the component C containing glucose, glycine and glutamic acid, which may further enhance the drought tolerance index and productivity for plant. The plant growth regulation composition for enhancing plant drought tolerance according to the present invention is substantially a growth regulation composition with drought tolerance and for increasing plant productivity.本發明係提供一種提高植物抗旱的植物生長調節組合物,包含:A)果寡糖及B)水溶性殼聚醣,不但可以提高植物的抗旱指數,同時可以提高植物之產量;亦可以進一步包含組成份C,該組成份C係包含葡萄糖、甘氨基酸及谷氨基酸,可更提植物的抗旱指數及其產量,即本發明所提供之一種提高植物抗旱的植物生長調節組合物實為一種具抗旱又可提高植物產量之生長調節組合物。無。
