综合气象条件对棉纤维比强的影响试验研究

Study on Effect of Comprehensive Meteorological Conditions on Specific Strength of Cotton Fibre

吐絮前 30d平均气温 <15℃ ,使棉花比强明显下降。弱光及弱光下加紫外灯照射比强明显下降。吐絮前 30d内有 >30mm降水时 :没有紫外灯照射的棉花比强增大 ;有紫外灯照射的棉花比强减小。吐絮前 30d内没有 >30mm降水时 :没有紫外灯照射的棉花比强变小 ;

days before opening bolls the average temperature is <15℃, that makes cotton specific strength decrease obviously. The cotton specific strength decreased obviously under weak light and weak light with specific strength of shine of ultraviolet lamp. When there is precipitation >30 mm within 30 days before opening bolls: Specific strength of the cotton without shine of ultraviolet lamp increased; Specific strength of the cotton with shine of ultraviolet lamp decreased.When there is no precipitation >30mm within 30 days before opening bolls: Specific strength of the cotton without shine of ultraviolet lamp decreased; Specific strength of the cotton with shine of ultraviolet lamp increased.