Table 1. Problem scheme according to variety behavior.

Starting point	from flowering to harvest			End-point
Variety	Behavior	Problem	Solution	Farmers’ goal
Productive and non alternate. e.g. Navelina	Adequately adjusting reproductive growth to tree capacity	Variety without problems	Farmers do not need to act in the process	High yield Good quality (size) Stable over years
Always unproductive e.g. Orri	Produces few or many flowers bud with low fruit set	Small yield	Farmers must encourage reproductive growth
Always excessively productive e.g. Fine Clementine	Excessive flowers and / or fruit set.	Many small fruits	Farmers must limit reproductive growth
Alternate cv. to a greater or lesser extent, e.g. Nadorcott	Years with good yields: small fruits and exhausted trees Years with poor yields	Years with good yields and small size. Years with poor yields	Farmers must act to reduce excess

non alternate var., variety with constant yield over the years; reproductive growth, production and development of reproductive organs (flowers); exhausted trees, trees with no carbohydrate reserves.