《Table 5 Comparisons of plant height, leaf stem ratio and DW/FW ratio of forage sorghum in autumn id

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《不同播期对秋闲田饲用高粱株高、叶茎比与干鲜比的影响（英文）》

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Different lowercase letters in the same column indicate significant differences at the 0.05 level，and different capital letters in the same column indicate significant differences at the 0.01 level.*indicates a significant difference between means at the

As shown in Table 5，the DW/FW ratios of forage sorghum sown on July 23rd，July 29th，August 6th，August 14th，August 22nd and August 30th were 0.301，0.299，0.280，0.253，0.237 and 0.257，respectively，indicating that the DW/FW ratio of forage sorghum was tended to decrease with the delay of sowing date.The DW/FW ratio of forage sorghum sown on July23rd was the highest（0.301），which was 0.59%higher than that（0.299）of forage sorghum sown on July 29th（P>0.05）and was 7.04%~21.31%higher than those of forage sorghum sown on other dates（P<0.01）.It indicated that the sowing of forage sorghum in autumn idle land should not be too late.The DW/FW ratio of forage sorghum sown on July 29th ranked second，6.49%~20.85%higher than those of forage sorghum sown on other dates（P<0.01）.The DW/FW ratio of forage sorghum sown on August 22nd was the lowest（0.237），6.24%~21.31%lower than those of forage sorghum sown on other dates（P<0.01）.The DW/FW ratio of forage sorghum sown on August 30th was0.257，which differed insignificantly compared with that of forage sorghum sown on August 14th（P>0.05）but differed significantly compared with those of forage sorghum sown on other dates（P<0.01）.The growth of forage sorghum sown on August 30th was in the dry stage with less precipitation，and a drier environment resulted in a lower water content of the plant，so the DW/FW ratio increased instead.