Performance of cotton (Gossypium hirsutum L) through foliar application of growth promoters

Cotton is an important cash crop of pakistan and it is important to improve the yield of crop through application of growth regulators and nutrients. an experiment was conducted at studied at research area of agriculture farm near cholistan institute of desert studies,islamia university of bahawalpur to check the effect of foliar application of different nutrients and growth promoter on cotton. the experiment was comprised of treatments as control,phostrogen (n.p.k 10:10:27),miracle gro (n.p.k 15:30:15) + chelated (b.cu.fe.mn.zn 0.02:0.07:0.15:0.05:0.06),n.p.k shultz (15:30:20,bloom plus (n.p.k 15:30:15) + chelated (fe.mn.zn 0.10:0.05:0.05),naa @ 1%,n.p.k + naa @ (1%),phostrogen + naa (1%),miracle gro + naa (1%),bloom plus (n.p.k) + naa (1%). data of different morphological and yield components showed that plant height,chlorophyll contents,leaf area,number of bolls per plant,number of seed,seed cotton yield and boll weight were increased with in different combination of nutrients. the maximum effect on growth,physiology and yield was observed in treatment (bloom plus n.p.k 15:30:15) + naa (1%). earliness index,mean maturity days and production rate index was also influenced with foliar application of naa (1%) and n.p.k. the combine application of n.p.k and naa showed a positive improvement in the growth and yield of cotton.