Abstract

C.Krishnamoorthy and K.Rajamani

An experiment was conducted during 2010 and 2011 to investigate the impact of N, P and K fertilizers through fertigation on pollen features of cocoa was conducted at Tamil Nadu Agricultural University, India. The study was laid out in randomized block design with thirteen treatment combinations. The study shown that, fertigation with 125 % Recommended Fertilizer Dose as water soluble fertilizer through fertigation by micro sprinkler irrigation (T10) recorded the highest number of pollen characters viz., area of pollen grain (504.1 µm2 ), equivalent diameter of the pollen grain (27.4 microns), radius of the pollen grain (13.3 microns), pollen output (34.9), pollen viability (89.2 %), pollen germination (88.1 %) and pollen tube length.