Studies on the Effect of Foliar Application of Secondary and Micronutrient Combinations on Shoot Parameters of Guava cv Allahabad Safeda

摘要

The study was aimed to investigate the effects of foliar application of secondary and micro-nutrients on shoot characteristics such as shoot length (cm), shoot diameter (mm) and trunk girth (mm) of Guava cv Allahabad Safeda. The field experiment was conducted during August 2014 to March 2015. The experiment was laid out in a Randomized Block Design with 14 different treatments of various secondary and micronutrients. Experimental findings showed that the application of RDF+foliar spray of Zn+Mg+Mn @0.75%+Cu+Fe @ 0.5% + MAP 0.5% recorded the maximum shoot length (25.53 cm), shoot diameter (5.40 mm) and trunk girth and 68.30 mm under treatment 13 at 240 days after foliar spray whereas, minimum shoot length (14.76 cm) shoot diameter (3.46 mm) and trunk girth (50.23 mm) was recorded in RDF + foliar spray of Zn+DAP @ 0.5% at 240 days after foliar spray of treatment 14, which may influenced the photosynthetic compounds in the plant tissue involved in the synthesis of tryptophan, a precursor of IAA, so ultimately increasing the vegetative growth of the plant.