Effect of boron and gibberellic acid on flowering, pollen viability and seed production in cassava and sweet potato [study conducted in the Philippines]

agricultural chemicals asia asie bore boro boron convolvulaceae crops cultivos dicotiledoneas dicotyledons economic plants elements euphorbiaceae filipinas ga geraniales gibberelline health hortalizas (plantas) industrial crops ipomoea ipomoea batatas manihot manihot esculenta philippines plant growth substances plantas plantas azucareras plantas feculentas plantas industriales plante plante de culture plante industrielle plante racine plants produit agrochimique root crops root vegetables salud semimetales semimetals starch crops sugar crops tubiflorae vegetable crops viabilidad viability