广西植物2016，Vol.36Issue(9)：1076-1081,6.DOI:10.11931/guihaia.gxzw201503029
旋转磁场对小麦种子萌发及幼苗生长的影响
Effects of rotating magnetic field on seed germination and seedling growth of wheat
摘要
Abstract
Magnetic field treatment of seed, a new physical agricultural technology and a valuable agricultural production technique, is widely used at home and abroad. In order to study the effects of rotating magnetic field on wheat seed ger-mination and seedling physiological characteristics, wheat seeds ( Triticum aestivum cv. Huaimai 19) were treated in the rotating magnetic field with 11 mT for different times (10, 20, 30 and 60 min), and non-treatment was designed as the control CK. The seed germination potential, germination rate, germination index, plant height, root length, root num-ber, leaf number, dry weight and fresh weight were observed in the study. The results indicated that the treatment of ro-tating magnetic field for different times could significantly improve wheat seed germination potential, germination rate and germination index. With the increase of time, these germination indexes showed initial increase and then subsequent decrease. The best treatment time was 30 min, where the seed germination potential, germination rate, germination index were more than the control by 8.24%, 7.37% and 11.24%. Treatment of rotating magnetic field could stimulate the de-velopment of wheat root system. Root length and root number were significantly higher than the control. It also could ac-celerate the growth of wheat seedling. Among all the treatments, except for the treatment for 60 min, plant height was significantly higher than the control, and the highest appeared in the treatment for 30 min, which was 11.13%more than the control;Except for the treatment for 10 min, the number of leaves was higher than the control, and the highest ap-peared in the treatment for 30 min, which was significantly higher than the control by 38.89%. By the treatment of rota-ting magnetic field for different times, wheat seedling aboveground fresh and dry biomass, underground fresh and dry bi-omass were higher than the control, and biomass of wheat seedlings showed a low-high-low tendency with the increase of time. The highest appeared in the treatment for 20 min, which were significantly higher than the control. In conclusion, appropriate range of rotating magnetic field has positive effects on seed germination and seedling growth of wheat.关键词
旋转磁场/小麦种子/发芽势/发芽率/生理特性Key words
rotating magnetic field/wheat seed/germination potential/germination rate/physiological characteristic分类
农业科技引用本文复制引用
何正婷,蹇兴亮..旋转磁场对小麦种子萌发及幼苗生长的影响[J].广西植物,2016,36(9):1076-1081,6.基金项目
江苏省自然科学基金( BK2011653)[ Supported by the Natural Science Foundation of Jiangsu( BK2011653)]。 （ BK2011653）
