香附子提取物B处理作物种子效应初报

Effect of seed treatment with extract B from Cyperus rotundus

香附子提取物Ｂ处理作物种子效应初报张建新（陕西省农业科学院农业测试中心，杨陵７１２１００）赵伯善（西北农业大学农业化学系，杨陵７１２１００）ＥｆｆｅｃｔｏｆｓｅｅｄｔｒｅａｔｍｅｎｔｗｉｔｈｅｘｔｒａｃｔＢｆｒｏｍＣｙｐｅｒｕｓｒｏｔｕｎｄｕｓ￥Ｚｈ...

The study shows that soaking maize seeds with 100 and 1000 mg· L-1 of extract B from Cyperus rotundus ca promote their seedling growth and uptake of N, P and K, but 10000 mg· L-1 of the extract will inhibit P absorption. Soaking rice seeds with 1000 mg·L-1 of it can inCrease the vitality of the root system of their seedlings, the uptake of P and K,the number of productive tiller and the yield of grain. At ear forming stage of rice, the activities of nitrate reductase and peroxidase in terminal leaves are increased, but that of fumaric reductase in root system is decreased.