EFFECT OF ZINC AND BORON ON GROWTH AND YIELD OF BARI MOTORSHUTI-1

Abstract

The experiment was conducted during the period from November, 2013 to March 2014 at the farm of Sher-e-Bangla Agricultural University, Dhaka, Bangladesh to study the effect of zinc and boron on growth and yield of BARI motorshuti-1. The experiment comprised of two factors; Factor A: Levels of zinc (4 levels)- Zn : 0 kg Zn ha -1 (control), Zn 1 : 1.5 kg Zn ha -1 , Zn 2 : 2.5 kg Zn ha -1 ,

Zn

and Factors B: Levels of boron (3 levels)- B 0 : 0 kg B ha -1 3 : 3.5 kg Zn ha (control), B : 1.5 kg B ha -1 and B 2 : 2.5 kg B ha -1 . The two factors experiment was laid out in Randomized Complete Block Design (RCBD) with three replications. For different levels of zinc, at 20, 30, 40, 50, 60 DAT and at harvest, the tallest plant (15.75, 36.15, 55.60, 69.29, 81.67 and 86.76 cm, respectively) was recorded from Zn 3 , whereas the shortest plant (12.23, 26.59, 37.50, 52.60, 65.96 and 72.94 cm, respectively) was found from Zn 0 . The highest seed yield hectare -1 (7.98 ton) was recorded from Zn 3 , whereas the lowest (6.00 ton) from Zn . The maximum concentration in seed for N (0.446%), P (0.212%), K (0.283%), S (0.160%), Zn (0.0184%) and B (0.0150%) were observed from Zn 3 0 , whereas the minimum concentration in seed for N (0.318%), P (0.163%), K (0.203%), S (0.132%), Zn (0.0116%) and B (0.0115%) from Zn . In consideration of different level of boron, at 20, 30, 40, 50, 60 DAS and at harvest, the tallest plant (15.76, 34.99, 52.89, 65.93, 78.89 and 85.69 cm, respectively) were recorded from B 0 , while the shortest plant (12.32, 29.90, 45.21, 60.11, 69.62 and 77.04 cm, respectively) from B 0 . The highest seed yield hectare -1 (7.86 ton) from B , while the lowest seed yield hectare -1 (6.15 ton) from B 0 2 . The maximum concentration in seed for N (0.431%), P (0.197%), K (0.276%), S (0.159%), Zn (0.0166%) and B (0.0148%) were recorded from B and the minimum concentration in seed for N (0.351%), P (0.180%), K (0.210%), S (0.128%), Zn (0.0132%) and B (0.0114%) from B 2 . At 20, 30, 40, 50, 60 DAS and at harvest, the tallest plant (17.72, 39.29, 60.46, 73.75, 86.60 and 91.50 cm, respectively) were observed from Zn 3 B and the shortest plant (10.37, 25.18, 35.38, 51.36, 60.19 and 69.40 cm, respectively) from Zn The highest seed yield hectare seed yield hectare -1 -1 (8.85 ton) was found from Zn (5.34 ton) from Zn 0 B 0 2 3 B 2 . The maximum concentration in seed for N (0.497%), P (0.216%), K (0.320%), S (0.175%), Zn (0.0206%) and B (0.0160%) were observed from Zn 3 B , while the minimum concentration in seed for N (0.300%), P (0.162%), K (0.193%), S (0.121%), Zn (0.0103%) and B (0.0093%) from Zn 0 B 0 2 . Findings revealed that application of 3.5 kg Zn ha & 2.5 kg B ha -1 and 2.5 kg Zn ha -1 & 1.5 kg B ha -1 showed statistically same seed yield and other yield contributing characters. 1 2

0 0 0 B and the lowest -1 -1 0 .