II. Yield Estimation and control

25 Outubro 2018, 09:00 • Carlos Manuel Antunes Lopes

2.1. Introduction

2.2. Yield components and the period in which they are determined. Factors affecting yield components

2.3. Yield variability and it’s causes

2.4. Yield forecast

2.4.1. Advantages of Yield forecast

2.4.2. Main techniques for Yield forecasting

2.4.2.1. Aeropalynological forecast models;

2.4.2.2. Estimation of yield components;

2.4.2.3. Agrometeorological models;

2.4.2.4. Remote sensing;

2.4.2.5. Measuring trellis tension;

2.4.2.6. Image Analysis

2.5. Yield control by viticultural practices.

2.5.1. pruning level;

2.5.2. shoot thinning;

2.5.3. shoot tipping or hedging during flowering;

2.5.4. early leaf removal;

2.5.5. spraying growth regulators;

2.5.6. inflorescence thinning;

2.5.7. berry thinning;

2.5.8. cluster thinning.