Paclobutrazol application effects on plant height, seed yield and carbohydrate metabolism in canola

摘要: The mechanical harvesting of canola seeds requires a suitable plant height. appropriate time paclobutrazol application can reduce To evaluate the best paclobutrazol, field experiment was conducted with applied at stalk heights 10, 20, 30, 40 and 50 cm. Plants without were taken as control. results indicated that height reduced by 27% 10 cm compared seed yield significantly improved mean increment 21%. increased branching ability contributed to improvement. total soluble sugar, sucrose, starch content in stem, leaf bud organs initial flowering stage. Paclobutrazol enhanced sucrose synthesis phosphate synthase well catalysis via synthase, neutral invertase, particular acid invertase. amount carbohydrates during remained lower root after treatment, thereby indicating high-efficiency carbohydrate utilization plants comparison control plants. Thus, takes advantages improve through enhancing efficiency, which is useful future for harvesting. © 2014 Friends Science Publishers