Influence of plant hormones and level of phosphorus on growth and yield of field pea (Pisum sativum L.) under irrigated conditions of Punjab

Abstract

The influence of plant hormones and level of phosphorus (i.e. 0, 40 and 60 kg P2O5 ha-1) on growth and yield of field pea (Pisum sativum L.) was conducted at Campus for Research and Advanced Studies Dhablan of the G.S.S.D.G.S. Khalsa College, Patiala, Punjab during Rabi-2017-2018. The experiment laid out in factorial randomized block design with 3 replications, consisting of 12 treatment combination. The soil of experimental field was clay in texture with pH 7.3 and contained organic carbon 0.52, available nitrogen 262 kg ha-1, available P2O5 22.6 kg ha-1, available K2O 129kg ha-1. Application of 60 kg phosphorus ha-1 recorded significantly higher growth characters viz. plant height, number of leaves, number of branches, fresh weight and dry weight and yield (grain and straw yield) than lower levels of 40, 0 kg phosphorus ha-1. Significantly higher growth and yield of field pea was recorded with GA3 + IAA +IBA (50ppm + 50ppm + 50ppm) as compared to others. The maximum B: C ratio was recorded with application of 60 kg phosphorus ha-1 and GA3 + IAA +IBA (50ppm + 50ppm + 50ppm). From the result, it was concluded that the maximum yield of the field pea could be achieved by application of P2O5 @ 60 kg ha-1 and GA3 + IAA +IBA (50ppm + 50ppm + 50ppm).