DefinePK

Abstract

ABSTRACT An experiment was laid out to assess the effect of depth of planting on the survival and establishment of trees in conditions at Rakh Dagar Kotli (Thal Desert) 200mm av. annual rainfall and 45&degC av.minimum and 45&degC av. max temperature. Pits were prepared having 0.5 meter diameter and 0.2 meter deep. Plants were raised in 30 cm and 15 cm long polythene tubes. Three tree species viz: Acacia aneura, A. tortilis and Tecoma undulata were planted at two depths i.e., 30 and 18 cm in July 1980. After one and half year it was found that in deep planting 64% plants of all species survived and in shallow planting 54%. In both depths maximum survival was of A. tortilis being 75% followed by 58% of T.undulata and 44% of A.aneura. In deep planting the average height of plants was 76 cm and in shallow planting it was 60 cm. A. tortilis showed better rate of growth as the average height gained by the plants during the period was 102 cm at both depths. While average height of T.undulata and A. aneura were 54 cm and 49 cm respectively.