Vol. 10 (2) : March-April 2019 issue
Green Farming Vol. 10 (2) : 230-233 ; March-April, 2019
Effect of foliar spray of micronutrients and growth regulators on growth and seed yield of onion
ASHOKa1*, BASAVE GOWDAa2, S.N. VASUDEVANb3, S.R. DODDAGOUDARa4, M.G. PATILc5 and ARUNKUMAR HOSAMANId6
aDepartment of Seed Science & Technology, cDepartment of Horticulture, dDepartment of Agriculture Entomology, College of Agriculture, University of Agricultural Sciences, Raichur - 584 104 (Karnataka),
bDeptt. of Seed Science & Technology, College of Agric, VC Farm, Mandya - 571 405, (UAS Bengaluru, Karnataka)
Designation : 1Assistant Agriculture Officer *(npbashokreddy@gmail.com), 2Professor (SST) & Special Officer (Seeds), 3Professor (SST) & ADR, 4Assistant Professor, 5Dean (Agri.), 6Professor
Subject : Seed Science Technology
Paper No. : P-7571
Total Pages : 4
Received : 15 March 2019
Revised accepted : 02 April 2019
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Citation :
ASHOK, BASAVE GOWDA, S.N. VASUDEVAN, S.R. DODDAGOUDAR, M.G. PATIL and ARUNKUMAR HOSAMANI. 2019. Effect of foliar spray of micronutrients and growth regulators on growth and seed yield of onion. Green Farming Vol. 10 (2) : 230-233 ; March-April, 2019
ABSTRACT
The field experiment was laid out with Randomized complete block design to study the effect of foliar sprays of micronutrients (T2: ZnSO4, T3: B and T4: T2 + T3) and growth regulators (T5: GA3, T6: NAA, T7: T5 + T6 and T8: TIBA + NAA) with three replications on growth and seed yield of onion variety Arka Kalyan during rabi 2016-17 and 2017-18 seasons at Seed production plot, Seed Unit, UAS, Raichur. Foliar spray was given at 45 and 75 days after bulb planting (DAP). From the present investigation, it was noticed that the significant increase in the growth and yield parameters were recorded with foliar spray of ZnSO4 @ 0.5 per cent viz., number of leaves per plant (51.35, 51.13 and 51.24) & plant height (78.63, 81.80 and 79.58 cm) at 90 DAP, number of umbels per plant (7.17, 7.47 and 7.32), number of seeds per umbel (675.9, 703.3 and 689.6), seed yield per plant (6.32, 9.21 and 7.77 g), seed yield per ha (463, 560 and 512 kg/ha) and thousand seed weight (4.27, 4.20 and 4.23 g) followed by GA3 @ 100 ppm over control viz., number of leaves per plant (45.17, 47.33 and 46.25) & plant height (73.83, 75.00 and 74.42 cm) at 90 DAP, number of umbels per plant (6.50, 6.67 and 6.58), number of seeds per umbel (426.1, 515.8 and 471.0), seed yield per plant (5.14, 6.34 and 5.74 g), seed yield per ha (400, 515 and 457 kg/ha) and thousand seed weight (3.23, 3.30 and 3.27 g) during 2016-17, 2017-18 and pooled data, respectively.
Key words :
Arka Kalyan, Growth regulators, Growth & yield attributes, Micronutrients, Onion, Seed Production.
