江西农业大学学报Issue(3)：470-475,6.DOI:10.13836/j.jjau.2014076
黑麦草浸提液对水稻、大豆和玉米种子萌发及幼苗生长的影响
The Effect of Perennial Ryegrass Extracts on the Germination and Seedling Growth of Rice,Soybean and Corn
摘要
Abstract
In order to further understand the possible impact of perennial ryegrass returning on succeeding crops,the influence of different concentrations of the water extracts of perennial ryegrass ( 0%,5%,7.5%and 10%) on seed germination and seedling growth of rice ,soybean and corn was studied .The results showed that:from the perspective of seed germination rate ,5%and 7.5% concentration promoted the germination of rice ,10%concentration inhibited the germination of rice ,and three kinds of concentrations of the water extracts of pe-rennial ryegrass inhibited the seed germination rate of soybean and corn in some extent .From the perspective of seedling root length ,5%concentration of the water extracts had certain promoting effect on rice seedling root length,7.5%and 10%concentrations had significant inhibitatory effect on rice seedling root length ,the water ex-tracts of perennial ryegrass inhibited the growth of seedling root of soybean and corn .From the perspective of crop seedling height ,7.5%concentration of the water extracts had certain promoting effect on corn ,10%concentration showed obvious inhibitatory effect .From the perspective of seedling dry weight ,5%concentration of the water ex-tracts had significant promoting effect on the dry matter accumulation of rice and soybean ,7.5%and 10%con-centration had inhibitatory effect on the dry matter accumulation of rice and soybean ;the inhibitatory effect on the dry matter accumulation of corn increased with the concentration of the water extracts of perennial ryegrass , there were significant difference among 5%and 7.5%,10%concentrations .In conclusion ,the water extract of pe-rennial ryegrass had a“hormesis effect”on corn and rice ,and inhibited the seed germination of soybean ,10%concentration of the water extracts of perennial ryegrass inhibited the seedling growth of rice ,soybean and corn . The optimum proportions of perennial ryegrass returning amount in paddy field should be based on the kinds of succeeding crops ,so as to improve the growth of succeeding crops and maintaining high yield .关键词
浸提液/发芽率/干质量/幼苗/化感作用Key words
leaching solution/germination rate/dry weight/seedling/allelopathy分类
农业科技引用本文复制引用
王晓维,杨文亭,王淑彬,黄国勤,赵其国..黑麦草浸提液对水稻、大豆和玉米种子萌发及幼苗生长的影响[J].江西农业大学学报,2014,(3):470-475,6.基金项目
国家自然科学基金重点项目 （）
