Effects Of Plant Growth Regulators On Fruit Setting And Ovary Enlargement Of Potato

The parental fruiting and the quality of berries is an important factor in the process of crossbreeding.It is of great significance to find ways to promote the fruit-setting rate and ovary enlargement of potato.This experiment used randomized block designs,studied effects of plant growth regulators on fruit setting and ovary enlargement of potato.Jizhangshu 8 as a potato variety and a-naphthylacetic acid,compound sodium nitrophenolate,4-chlorophenoxyacetic acid,gibberellin 3,chlorine pyrazole benzene urea,6-benzylaminopurine,6-furfurylaminopurine as 7 kinds of plant growth regulators were used in the experiment,the results of which was as follows.The optimum concentration of a-naphthylacetic acid to accelerate fruit setting of potato was between 0.6 g/L and 0.8 g/L;the optimum concentration to promote ovary enlargement was 0.8 g/L.The optimum concentration of compound sodium nitrophenolate to accelerate fruit setting of potato was between 0.6 g/L and 0.8 g/L;the optimum concentration to promote ovary enlargement was between 0.4 g/L and 1 g/L.The optimum concentration of 4-chlorophenoxyacetic acid to accelerate fruit setting of potato was 0.1 g/L;the optimum concentration to promote ovary enlargement was 0.1 g/L.The optimum concentration of gibberellin 3 to accelerate fruit setting of potato was between 0.06 g/L and 0.1 g/L;the optimum concentration to promote ovary enlargement was between 0.02 g/L and 0.04 g/L.The optimum concentration of chlorine pyrazole benzene urea to accelerate fruit setting of potato was between 0.06 g/L and 0.08 g/L;the optimum concentration to promote ovary enlargement was 0.08 g/L.The optimum concentration of 6-benzylaminopurine to accelerate fruit setting of potato was 0.06 g/L;the optimum concentration to promote ovary enlargement was between 0.04 g/L and 0.08 g/L.The optimum concentration of 6-furfurylaminopurine to accelerate fruit setting of potato was between 0.04 g/L and 0.08 g/L;the optimum concentration to promote ovary enlargement was 0.08 g/L.