Advances in Life Sciences
Year : 2016, Volume : 5, Issue : 12
First page : ( 5083) Last page : ( 5087)
Print ISSN : 2278-3849. Online ISSN : 2278-4705.

Effect of Planting Dates and Correlation studies on Growth and Yield of Rabi Sorghum Genotypes

Hulihalli U.K.*, Shantveerayya, Mammigatti U.V.

Directorate of Research University of Agricultural Sciences, Dharwad-580 005, Karnataka, India

*email: hulihalliuk@uasd.in

Online published on 2 January, 2017.

Abstract

A field experiment was conducted during 2012–13 at Main Agricultural Research Station, Dharwad to study the effect of planting dates and correlation studies on growth and yield of sorghum genotypes. Genotypes Phule Revati recorded significantly higher grain yield (3322 kg ha⁻¹) and stover yield (7.24 t ha⁻¹) compared to rest of the genotypes. Among the date of sowing 1^st week of October sowing recorded significantly higher grain yield (2865 kg ha⁻¹) and stover yield (7.26 t ha⁻¹) compared to rest of the sowing dates. Whereas, 1^st week of November sowing recorded significantly lower grain yield (1555 kg ha⁻¹) and stover yield (5.92 t ha⁻¹). The correlation analysis indicated that, rabi sorghum yield was highly significant and positively influenced by minimum temperature prevailed during vegetative period both morning and evening relative humidity and rainfall prevailed during both vegetative and grain filling period. While the maximum temperature was significantly and negatively correlated with both vegetative as well as grain filling period.

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Keywords

Date of sowing, LAI, spikelets per head, test weight, correlation, grain yield.

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