Effect of foliar sprays of boron on growth and yield of French bean (Phaseolus vulgaris L.) in Entisol

Abstract

The pot culture experiment was conducted to study the effect of foliar application of boron through boric acid @ 0.2, 0.4, 0.6 and 0.8 per cent and soil application of borax @ 2.5 kg ha-1 and 5.0 kg ha-1 on growth and yield of French bean Cv. Phule Suyash in Entisol at Division of Soil Science and Agricultural Chemistry, College of Agriculture, Pune, during Rabi 2017-2018. The experimental soil was deficient in boron (0.35 mg kg-1). There were eight treatments replicated thrice in completely randomized design. The foliar application of boron @ 0.6 per cent through boric acid at an interval of 25 and 55 days after sowing was found to be increased number of branches plant significantly over general recommend dose of fertilizers. The soil application of 5.0 kg ha-1 borax at the time of sowing was found to Required less days for 50 per cent floweringas compared with general recommend dose (GRD). The foliar application of boron with 0.6 per cent boric acid at 25 and 55 days after sowing increased the number of pods per plant, number of grains pod, straw yield and 100 grain weight and yield of French bean.