[Effect of PGR-1 (plant growth regulator-1) on variations in mineral content and nutritive value of Areca catechu L].

The investigation was conducted to find out the effect of PGR-1 (spurting) on variations in the mineral contents and nutritive values of the leaf, flower and root of Areca catechu in different phenophases of th year. The result shows that PGR-1 helps to expand th leaf area of different leaf segments by 20.8 to 37.47 cm2 and increase the dry matter by 4.66 to 6.56g, so as to promote the nutritive value of inflorescence and thus raise the flowering and fruitication rate.