A quantitative fruit production assessment can usually be carried out on flowers unless the species is prone to heavy predation or late fruit abortion. You can take a small representative part of the tree and carefully count the visible flowers on it. In case of inflorescences, you will need to count the clustered flowers per inflorescence (but be aware that clustered flowers will differ among inflorescences). Estimate the size of this small area, or the area covered by the crown in percentage, then multiply it for the visible part of the crown and again for the whole tree. Please keep in mind that only a fraction of the total fruit available is harvestable (see Section 3.2 of the Seed Collection textbook to learn about a sustainable harvest). If you have a previous estimation of the number of seeds (or even viable seeds) per fruit of the species, you may want to calculate the total number of seeds you will get from the next season’s sustainable harvest.