| To clarify the pelleting effect on seed germination and seedling growth, a split-plot experiment of two factors was conducted to generate pelleted flax seeds using absorbent, active carbon, diatomite, and attapulgite as coating materials. When the ratio of absorbent to seed was 1∶1, the vigor index and seedling germination rate of pelleted seeds were significantly increased by 20.11% and 18.62% more respectively than those without the addition of absorbent. With the increase of water content, root shoot ratio was decreased by 3.25%. The germination rate and emergence rate of pelleted seeds with active carbon and attapulgite (ratio 1∶1) were increased by 6.79% and 22.41% more respectively than those without any filler, resulting in the healthiest seedlings. When the ratio of weight of absorbent to seed was 2∶1, the use of activated carbon and attapulgite (the ratio was 1∶1) as filler could significantly improve the germination index, vigor index and seedling emergence rate. Furthermore, the stem diameter, leaf area and root shoot ratio of seedlings were significantly increased by 11.02%, 27.35%, and 28.07%. Therefore, coating agent using appropriate amount of absorbent (ratio of weight of absorbent to seed was 1∶1), activated carbon and attapulgite as fillers had better effects on flax seeds by improving the seed vigor and increasing the rate of emergence, seedling dry weight, root system, and root shoot ratio, which laid a good foundation for flax yield. |