Effects of Extract of Melia azedarach L.by Water on Wheat Seedlings Growth

Dried Melia azedarach L.fruits,crushed,and dissolred in water,got Melia azedarach L.water extractive by way of ultrasonic extract.And confected different concentration Melia azedarach L.extractive according to fruits weight,used for examination the effect on groweh of weat seedling.The result showed that weat seedings growth were different obviously among 33.33%,16.67%,8.33%,5.00%,3.33% and 1.67% after sprayed.And the result showed that Melia azedarach L.water extractive could promote growth of wheat seedlings,and higher the concentraction,the greater the pronoting effect.