Effect of foliar spray of silicon and boron on fruiting and yield of rejuvenated mango (Mangifera indica L.) cv. Sonpari

Abstract

during two continuous years 2017-18 and 2018-19 to assess the effect of different silicon and boron sources on fruiting and yield of mango cv. Sonpari under South Gujarat conditions. The experiment was laid out in a Completely Randomized Design with factorial concept having ten treatment combinations comprising five levels of silicon and two levels of boron. Foliar spray of potassium silicate @ 1.5% (S3) was found better with respect to maximum fruit retention (4.14%), higher number of fruits at marble (11.05) and harvest (1.91) stages per panicle, higher number of fruits per tree (182.00) and yield (64.62kg/tree). Similarly, foliar spray of boric acid @ 1.2g L -1 (B2) gave maximum fruit retention (4.08%), number of fruits at marble (10.56) and harvest (1.78) stages per panicle, number of fruits per tree (172.80) and yield (60.94kg/tree). In interaction effect, combined spray of potassium silicate @ 1.5% + boric acid @ 1.2g L -1 (S3B2) gave maximum number of fruits per panicle at marble and harvest stages.