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Effect of Viability on Seed Germination, Growth and Graft-take in Avocado (Persea americana Mill.) under Hill Zone of Karnataka

Author: Pushpa Shindre, Yallesh Kumar H.S., Narayana, S. Mavarkar, Ganapathi, M. and Chaitanya, H.S.

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Abstract

The study was carried out during the year 2021-22 under normal poly house condition at department of fruit science, College of Horticulture, Mudigere, on effect of viability on seed germination, growth and graft- take in avocado under hill zone of Karnataka. Experiment was laid out in Completely Randomized Design with seven treatments, replicated thrice. In this experiment, avocado seeds were sown at an interval of five days from 0 days of extraction to 30 days. Avocado seeds sown on zero day after extraction recorded minimum number of days for initiation of germination (14.34), 50 per cent germination (24.33), complete germination (36.34), maximum germination per cent (93.33), germination vigour index (1.33), rootstock height (45.87 cm), number of leaves (18.64) and rootstock diameter (8.77 mm). Primary root length (23.52 cm), number of secondary roots (71.70), volume of roots (28.60), fresh weight (5.66 g) and dry weight (7.90 g) also found maximum in seeds sown on zero day after extraction. In graft parameters, seeds sown at five days after extraction recorded maximum graft height (44.72 cm) and sprout length (11.26 cm). Seeds sown on zero day after extraction recorded maximum number of sprouts (7.20), number of leaves (19.50), graft success percentage (86.67) and graft survival percentage (84.72).

Keywords

Viability, Germination, Graft success percentage, Graft survival percentage

Conclusion

The seeds sown on zero day after extraction shown better performance in terms of days taken for initiation, 50 per cent and complete germination, germination percentage, rootstock height, diameter and number of leaves, graft success percentage and survival percentage.

References

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How to cite this article

Pushpa Shindre, Yallesh Kumar, H, S., Narayana, S. Mavarkar, Ganapathi, M. and Chaitanya, H.S. (2022). Effect of Viability on Seed Germination, Growth and Graft-take in Avocado (Persea americana Mill.) under Hill Zone of Karnataka. Biological Forum – An International Journal, 14(4): 803-806.