The Influence of the Mother Stock Conditions on the Qualities, Rooting and Growth of the Cuttings of Tea Varieties

Abstract

The influence of the conditions of the mother stocks on the qualities, rooting and growth of tea cuttings were examine, using r3 varieties. Significant differences were observed in the qualities, rooting and growth of cuttings among both treatments and varieties, and in the new shoot growth a significant interrelation was observed between treatments and varieties. The state of lateral buds of the slips seemed to have some relations on the new shoot growth.It was thought from the results of this experiment that in nursery test of varieties, rooting ability and vigour of growth should be distinguished, and generally speaking the vigour of growth is to be thought much of.As for mother stock treatments, cuttings from naturally grown (no-pruning) stock which had poorest stem and lowest N-content in leaves and stems showed poorest rooting, and cuttings from stock treated by usual method which had largest stem and highest Ncontent showed best rooting. But the growth of cuttings was best in case of down-pruned stock which had largest leaves.As for varieties, Y 3 which had lowest Ncontent in leaves showed poorest rooting, and such a tendency was observed that the larger the leaves and stems and the lower the N-content in stems, the better the growth of cuttings.The size of leaves seemed to have some relations to the growth of cuttings.Further studies must be done about the relations between the N-content of the slips and the rooting and growth of cuttings in tea.