Vol. 8 (5) : September-October 2017 issue
Green Farming Vol. 8 (5) : 1138-1141 ; September-October, 2017
Degree of association among growth, yield attributes and grain yield of zero-till sorghum – Correlation analysis
H. ARUNAKUMARI1*, P.V.N. PRASAD2 and B. VENKATESWARLU3
Department of Agronomy, Agricultural College (Acharya N.G. Ranga Agricultural University), Bapatla - 522 101, Guntur (Andhra Pradesh)
Designation : 1P.G. Student *(hanumanthu.aruna@gmail.com), 2Principal Scientist and Head, 3Professor
Subject : Agronomy and Crop Production
Paper No. : P-6839
Total Pages : 4
Received : 20 July 2017
Revised accepted : 26 August 2017
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Citation :
H. ARUNAKUMARI, P.V.N. PRASAD and B. VENKATESWARLU. 2017. Degree of association among growth, yield attributes and grain yield of zero-till sorghum – Correlation analysis. Green Farming Vol. 8 (5) : 1138-1141 ; September-October, 2017
ABSTRACT
A field experiment conducted during rabi, 2014-2015 on clay loam soils of Agricultural College Farm, Bapatla was laid out in factorial Randomized block design with three replications. The treatments comprised three planting densities (S1: 3.33 lakh plants ha-1, S2: 2.22 lakh plants ha-1, S3: 1.66 lakh plants ha-1) allotted to factor-A and four nitrogen levels (N0 : 0 kg ha-1, N1 : 50 kg ha-1, N2 : 100 kg ha-1, N3 : 150 kg ha-1) under factor-B. The results revealed that the highest plant height (215.3cm) was associated with the planting density of 1.66 lakh plants ha-1), however the higher drymatter production, yield attributes and grain yield was higher at a planting density of 2.22 lakh plants ha-1 with 150 kg N ha-1. Grain yield of sorghum was positively correlated with plant height, drymatter accumulation, 50% ear emergence and days to maturity as well as yield attributes viz., earhead length, number of grains per earhead and test weight but was negatively correlated with number of earheads m-2 under zero till sorghum.
Key words :
Growth & yield attributes, Nitrogen levels, Planting density, Zero till sorghum.
