期刊论文

中文

热带作物学报

1000-2561

2010

31

1

39-44

10.3969/j.issn.1000-2561.2010.01.008

湖南省科技厅项目（2007FJ4139 04NK3007） 湖南省教育厅项目（08C084）共同资助

本校为第一机构

为了解决热带花卉植物半支莲(Portulaca grandiflora Hook.)茎干生长过长又肉质柔软而影响观赏期这一缺陷,培育出优良的半支莲盆花,以半支莲盆花为材料,选用不同浓度的植物生长调节剂氯化氯胆碱、PP333和S-3307D的单剂和复配剂,对其观赏性状进行化学调控.结果表明,对半支莲盆花地上部喷施50%氯化氯胆碱400倍液+5% S-3307D 800倍液和50%氯化氯胆碱200倍液+5% S-3307D 400倍液2种复配剂,在20 d时测定,盆花的主茎生长速率显著小于对照和其他处理,第1种复配剂的花朵数增长率和花蕾数增长率显著大于对照和其他所有处理;40 d时测定,此2种复配剂的主茎生长速率仍显著小于对照和其他处理,但第1种复配剂的...

When it is used as pot flower, a tropical ornamental plant Portulaca grandiflora Hook has a short ornamental life because of its soft chylocaulous stem and rapid growth, which has reduced its commercial value. An attempt was made to regulate its plant type and shorten its stem by inhibiting its apical dominance and increasing the quantity of its ramification, flower and alabastrum to elongate its ornamental life. The pot flowers of Portulaca grandiflora Hook were used as the experimental materials and sprayed singly or in mixture with chemical ...