Effects of mechanical stress caused by hanging labels from the petioles (HLFP) of every white flower in the field on the fruiting position lengths (FPL values) for four cotton genotypes.

For each genotype, values (mean±SD) in the same column that are followed by different lower case letters differ significantly at the p针对每个基因型，同一列中带有不同小写字母标注的平均值±标准差（mean±SD）在p值水平上存在显著差异