[Development of root system of apple trees in dependence of planting construction]
2005
Pachu, M.I.(State Agrarian Univ., Kishinev (Moldova))
The development of root system of the apple varieties "Idared" and "Delbard Estival", grafted on the rootstock M9 at the planting density from 1586 to 4542 trees/hectare was studied. It was established that the root system mass and length increase by 36.0-52.4% at sparser planting (3.5 x 1.8 m) in comparison with denser planting (3.5 + 1 + 1) x 1.2 m. The maximal values of root system development (length, mas) were marked in the soil layer 0-40 cm. The density of roots gradually decreases from a tunk to the middle part of alleys
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