Application of COS in promoting seedling growth


The results show:

(1) COS at low concentrations (0.01mg/L) can promote tobacco plant height elongation, however, high concentration (l00mg/L) inhibited the plant height elongation, the effect of application of two more than a more significant.

(2) 0.01 and 1mg/L COS application of leaf area 2 times all promoting tobacco seedling growth.

(3) 0.01mg/L-1, and 1mg/L-1, chitosan can improve the tobacco seedling root length.

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