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What specific effective products work well for preserving flowers and fruit set?
Specific effective products for preserving flowers and fruit set include brassinolide, sodium naphthaleneacetate, gibberellin, cytokinin, sodium nitrophenolate, zineb, thiram, and others, but gibberellin and cytokinin are used more often now, and it is generally recommended to use them together with boron-calcium foliar fertilizer after 2/3 of the flowers have faded.