Hilling media influence on clonal propagation of apple rootstocks through layering
2020
Mehraj, Sheikh | Pandit, A. H. | Bhat, K. M. | Bhat, S. A. | Ali, M. T. | Malik, H. A. | Bisati, I. A.
The present study was carried out at Experimental Farm of Division of Fruit Science, SKUAST-Kashmir during 2016-2017 and 2017-2018. During the investigation programme, ten hilling materials were applied viz., Vermiculite (T1), Saw dust(T2), FYM(T3),Vermicompost(T4), Vermiculite+ Saw dust+ Pseudomonas (T5), Vermicultite + Saw dust +Azotobacter (T6), FYM + Vermicompost + Pseudomonas (T7), FYM + Vermicompost+ Azotobacter (T8), Pseudomonas+ Azotobacter+ Soil (T9), Control(T10) (only soil was used as a hilling material). The rootstocks used during the research programme consist of M-9 T337(S1), M-27(S2), MM-106(S3), P-22(S4), MM-111(S5). The experimental results showed that maximum shoot diameter (12.22mm), fresh leaf weight (33.33g), dry leaf weight (16.23g) and relative water content(87.16 per cent) were recorded under FYM + Vermicompost+ Azotobacter while as maximum annual production of rooted layers (8.62) was found under saw dust as a hilling media. The minimum shoot diameter (7.12mm), fresh leaf weight (21.83g), dry leaf weight (7.50g), relative water content (70.47 per cent) and annual production of rooted layers (6.81) were recorded under control (only soil was used a hilling material). Among the various propagation techniques it was observed that propagation technique P2 (trench layering) had a significant effect over P1 (mound layering) with regard to shoot diameter, fresh leaf weight, dry leaf weight, relative water content and annual production of rooted layers.
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