Response of zinc and boron in okra [Abelmoschus esculentus (L.) Moench]
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Date
2007
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Publisher
CCSHAU
Abstract
A field experiment was conducted to study the effect of boron
and zinc on fruit yield of okra [Abelomoschus eleculentus (L.) Moench]" at
Research Farm of the Department of Vegetable Science, CCS Haryana
Agricultural University, Hisar in sandy loam soil under semi-arid conditions
during rainy season of 2006-07. Five levels of zinc sulphate (0, 10, 20, 30 and
40 kg/ha) and four levels of borax (0, 5, 10 and 15 kg/ha) along with
recommended dose of NPK (100:50:50 kg/ha) were applied in the soil as basal
dose before sowing the seeds. The crop was sown in 2.8x2.5 in size plots at a
spacing of 60 cm between rows and 30 cm between plants in a randomized
block design with 3 replications. The soil application of zinc sulphate as source of zinc and borax as source of boron significantly influenced all the
characters under study. Plant height, number of branches per plant, fruit
length, fruit diameter, average fruit weight and fruit yield were recorded
maximum with treatment combination of zinc sulphate 40 kg/ha and borax
15 kg/ha. The protein content of okra fruits increased with the increased
level of zinc sulphate and borax as well, and the maximum content of protein
was found with the highest levels of zinc sulphate (40.0 kg/ha) and boron
(15.0 kg/ha) application in soil independently and in combination.
Combination of zinc sulphate (30 kg/ha) and. borax (15 kg/ha) increased the
contents of chlorophyll 'a', chlorophyll ‘b’ and total chlorophyll to its
maximum. The fruit yield demonstrated highly significant positive correlation
with all the growth and yield contributing attributes.
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Keywords
diseases, biological phenomena, byproducts, breeds (animals), agreements, grain legumes, enzymes, sexual reproduction, veterinary medicine, animal products