大麦应用三十烷醇磷酸酯钾田间试验初报

Preliminary Report of Application of Potassium Hydrogen 1 triacontyl Phosphate (TPK) to the Barley Field Experiment

田间喷施００１ｍｇ／Ｌ的三十烷醇磷酸酯钾或０５ｍｇ／Ｌ的三十烷醇都能显著改善同源四倍体大麦的产量性状且改善的程度相当，使穗颈长度从２４ｃｍ延长到３７ｃｍ，减少包颈的发生率，穗重从１１４５ｇ提高到１３３８ｇ，结实率从７５０％提高到７９５％，千粒重从４３６３８ｇ增加到５００３１ｇ．

Field spreading of either TPK(potassium hydrogen 1-triacontyl phosphate, with the concentration of 0.01 mg/L) or TA(triacontanol, with the concentration of 0.5mg/L) could obviously improve the yield traits in autotetraploid barley, and their degrees of improvement were almost the same. In result, the length of spike neck was exserted from 2.4cm to 3.7cm, and the incidence of spike wrapping was reduced. At the same time, the spike weight from 1.145g to 1.338g, the seed setting percentage from 75.0% to 79.5%, and 1000-grain weight from 43.638g to 50.031g were increased respectively.