PJB-2018-733
INSIGHT IN TO BENEFITS OF SEED PRIMING, SEED COATING IN ONION AND PHYSIOLOGICAL RESPONSE OF SEED
Usman Khalid Chaudhry
Abstract
Poor seed germination and seedling formation are the major barriers to better crop production. Non-uniformity and inadequate seedling emergence also occurs in the arid areas receiving less rainfall. Conversely, if seedling emergence is appropriate plants can still face various abiotic stresses including salinity, drought conditions and extreme temperature which in turn hinder plant growth and development resulting in lower yield. Currently, various kinds of seed treatments are being practiced to solve the above mentioned problems leading to higher yield. Seed coating and priming are among the most promising seed treatments that can proficiently mitigate adverse soil conditions and thus enhance the crop yield. Additionally, seed treatments have prominent role in causing physiological changes to cope with seed dormancy which in turn enhances the germination capacity of seeds. These techniques have been proven to be simple; cost-effective; have tremendous impact on livelihoods of farmer’s community by increasing crop emergence rate, crop development and hence good productivity as well. Therefore to increase the onion seedling establishment under stress conditions these techniques played pivotal role. The chief objective of this review is to manifest the benefits of onion seed treatments either as seed coating and/or seed priming towards better crop production.
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