Although the method of sssessing the viability of seeds by their percentage germination has much to commend it on account of its simplicity of technique and convenience.it posses certan defects- the chef of which is that it fails to give may indicationof the vigour the seedlings.As this latter is the true criterion of the fitness of any strain for propogation.any test,however empirical,which would furnish information on this aspect would be a valuable weapon in the hands of the economic plant breeder.In recent yeras with the advent of the concept of vernalisation.great significance has been attatched to the "germination" phase of plant development.and it is now well recognised that by appropriately treating the seed during germination the developmental phase can be profoundly lodified.If it were possible to correlate the physiological activity during germination with vigorous after growth.the geneticist would be saved much time and labour in plant selection.
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