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通过植物生长调节剂在杂交油菜“黔油14号”制种上的应用研究,结果表明:父本上喷施“920”能够提高父本植株的高度、增加单株有效角数、结角密度及每角粒数;母本喷施多效唑能够降低株高和分枝部位,显著提高每角粒数,构建良好的株形结构。父本喷施“920”、母本喷施多效唑及仅在母本上喷施多效唑能够提高制种产量,分别较ck(父母本均不施用植物生长调节剂)增产12.424%和6.943%。
Through the application of plant growth regulators in hybrid rapeseed “Qianyou 14”, the results showed that spraying “920” on the male parent could increase the height of the male parent and increase the effective number of plantlets per plant, And the number of grains per horn; spraying maternal paclobutrazol can reduce plant height and branches, significantly increase the number of grains per horn, and build a good plant-shaped structure. The parental spraying of “920”, spraying maternal paclobutrazol and spraying paclobutrazol only on the female parent could increase seed yield and increase yield by 12.424% and 6.943% respectively compared with ck (parents did not use plant growth regulator).