EFFECT OF FOLIAR APPLICATION OF UREA ON FLORAL GROWTH OF GLADIOLUS CV. AMERICAN BEAUTY

M. JAMWAL, A. M. PARMAR, R. L. MISHRA, D. B. SINGH

Abstract


The present investigation was undertaken in the Department of Horticulture, Allahabad Agricultural Institute, Naini, Allahabad during the winter season of 1998-99 in a randomized block design with sixteen treatments replicated three times. The floral growth parameters were significantly improved with increasing frequency of urea application. The early and frequent sprays cause significant increase in the length of spike. Four sprays of urea (2%) resulted the highest spike length. Urea treatment resulted in extended duration to first floret opening. Single early applications did not effect the duration of last floret opening but number of sprays increased duration of time required. All treatments increased significantly diameter of first floret except single spray at early stages. Durability of first floret was increased significantly. Durability of whole spike was the highest (18.14 days) with 20+40+60+80 DAP sprays of urea. More than one spray significantly increased rachis length over distilled water sprayed plants. More than single spray of urea caused significant effect for number of florets open at first over distilled water sprays. The maximum florets (4.15) remain open at a time was recorded by treatment 40+60+80 DAP sprays of urea.

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DOI: http://dx.doi.org/10.15835/arspa.v67i3-4.2978



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