26 Apr Role of Plant Growth Regulators in Floriculture
फूलों की खेती में प्लांट ग्रोथ रेगुलेटर की भूमिका The use of PGR's in modern horticulture is well established, more particularly horticulture in industrially advanced countries and their application is fast picking up in the developing nations as well. In fact PGRs have become integral component of agro-technical procedures of cultivated ornamental crops, since the regulations for usage of chemicals in ornamental crops are less stringent unlike those in food crops. Thus their application in these crops has been extended to alter a variety of responses. Some plant species or cultivars are responsive to specific PGRs, but not all PGRs. Hormone can be defined as a substance produced in one part of the organism and transferred to another part of the same organism where it affects a specific physiological function. The hormones are required only in minute quantities to produce large specific physiological process. The term growth regulator is applied to organic compounds, other than nutrients, which when used in minute quantities can either inhibit, stimulate, or alter growth. These broadly grouped in to two, growth promoters which stimulates or alters the growth favourably and growth retardants are those which inhibit or alter the growth negatively. Ornamental crops find extensive use of growth regulators for modifying their developmental processes. Within the broad group of plant...