Seed germination and seedling growth responses of tomato cultivars to imposed water stress
- 1 January 1987
- journal article
- research article
- Published by Taylor & Francis in The Journal of Horticultural Science and Biotechnology
- Vol. 62 (2) , 221-225
- https://doi.org/10.1080/14620316.1987.11515772
Abstract
The germination and seedling growth of tomato cvs Arka Saurabh, Pusa Ruby, Pusa Early Dwarf (PED), Arka Vikas and a wild sp. L. pimpinellifolium were studied under water potentials induced by polyethylene glycol-6000. Germination declined progressively in response to decreasing (more negative) water potentials. Germination in all cultivars occurred within 24 h after priming the seeds for 10 days at –0.6 MPa. The critical value of water potential for germination was found to be –0.4 MPa in nearly all the cultivars. A less negative critical water potential exists for the initiation of radicle growth (germination) than for growth itself. The water-sensitive phase of germination in tomato occurs prior to radicle growth.This publication has 4 references indexed in Scilit:
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