Metoda de determinare a suprafeţei foliare la măr

Abstract

The goal of our study was to determine the calculation methods of leaf surface area of apple trees. The investigations were carried out in the intensive orchard of the experimental didactic station “Criuleni” planted with two - year saplings of the following varieties : Golden Delicious and Mantuaner, grafted on M4 rootstock, using the distance of planting of 5 x 3 m. The trees were formed by the free growing palmette type. The leaf surface area was determined for all the calculable trees by the way of measuring and numbering. In order to determine the dimensions of the assimilation surface there were measured the entire annual shoots longer than 4 - 5 cm. Moreover, the spurs on the multi annual wood were counted too. At the same time it was determined the quantity of leaves on an annual shoot and on a spur. Using the existing data, the leaf surface area per tree and per area unity was calculated. The elements used in the calculation technology are listed in the table