棉 花 学 报     Cotton Science    2008，20(1)：73-75

Effects of Cotton Seed Pelletizing on the Cold-resistance and Physiological Characteristics in Germinating Process
LIU Ming-fen^1，2，WANG Li-ying¹，ZHANG Yan-cai¹，LI Xi^1，2，ZHAI Cai-xia¹，LI Qiao-yun¹，CHEN Li-li¹
（1.Insititute of Agro-resources and Environment，Hebei Academy of Agriculture and Forestry Sciences， shijiazhuang 050051,China;2.The Academy of Life Science of Hebei Normal University，Shijiazhuang 050016， China）

Abstract：Effects of different varieties of cotton seed pelletizing on the cold-risistance and physiological characteristics were studied in laboratory. As a result, ⑴ The fresh weight of radicles and simplified vigor index improved; ⑵ Contents of the soluble protein and the soluble sugar in the cotton radicles improved significantly; ⑶ The MDA content and the relative electric conductivity decreased remarkablly compared with coated control. It was concluded that cotton seeds pelletizing may effectively promote the transformation of nutrient substance in cotton seeds, seedling growth and increase the cold-resistance.
Key words：upland cotton；seed；pelletizing；germination；cold-resistance    [Full Text, 1338KB]