volume 30 issue 2 (june 2010) : 139 - 141
ASSESSING THE EFFECT OF NITROGEN AND HARVESTING STAGES ON YIELD AND YIELD ATTRIBUTES OF SWEET SORGHUM GENOTYPES
1Agricultural Research Station,
University of Agril.Sciences, Kathalagere-577 219, India
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Agricultural Science Digest
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volume 30 issue 2 (june 2010) : 139 - 141
ASSESSING THE EFFECT OF NITROGEN AND HARVESTING STAGES ON YIELD AND YIELD ATTRIBUTES OF SWEET SORGHUM GENOTYPES
1Agricultural Research Station,
University of Agril.Sciences, Kathalagere-577 219, India
ABSTRACT
A field experiment was conducted at Agricultural Research Station, (UAS) Kathalagere, during
kharif ,2007 on clay loam soil under rainfed conditions to study the effect of nitrogen and
harvesting stages on yield and yield attributes of sweet sorghum genotypes. Results revealed
that genotype SSV-84 recorded significantly higher grain yield (2237.1 kg ha-1) which was 24.60
% more than that of SSV-74 (1795.3 kg ha-1). Application of 81.25 kg ha-1 of nitrogen (125 % of
recommended dose of nitrogen) recorded significantly higher values of earhead weight (80.7
g),grain weight per earhead (59.2 g),stalk yield (32.62 t ha-1) and grain yield (2116.5 kg ha-1)
than that of 100% RDN (65 kg ha-1) and 75 % RDN (48.75 kg ha-1).Results further indicated that
harvesting of sweet sorghum at physiological maturity was found the most viable stage as it
recorded significantly higher earhead length (26.2 cm),ear head weight (86.8 g), grain weight per
ear (62.8 g), 1000 seed weight (30.4 g) and stalk yield (34.11 t ha-1) over other harvesting
schedules i.e., milky to dough and full maturity stages.
kharif ,2007 on clay loam soil under rainfed conditions to study the effect of nitrogen and
harvesting stages on yield and yield attributes of sweet sorghum genotypes. Results revealed
that genotype SSV-84 recorded significantly higher grain yield (2237.1 kg ha-1) which was 24.60
% more than that of SSV-74 (1795.3 kg ha-1). Application of 81.25 kg ha-1 of nitrogen (125 % of
recommended dose of nitrogen) recorded significantly higher values of earhead weight (80.7
g),grain weight per earhead (59.2 g),stalk yield (32.62 t ha-1) and grain yield (2116.5 kg ha-1)
than that of 100% RDN (65 kg ha-1) and 75 % RDN (48.75 kg ha-1).Results further indicated that
harvesting of sweet sorghum at physiological maturity was found the most viable stage as it
recorded significantly higher earhead length (26.2 cm),ear head weight (86.8 g), grain weight per
ear (62.8 g), 1000 seed weight (30.4 g) and stalk yield (34.11 t ha-1) over other harvesting
schedules i.e., milky to dough and full maturity stages.
REFERENCES
- Channa Naik, D and Jayakumar B.V., (1994), Indian. J. Agron.,39:415-417
- Parvatikar,S.R. et. al.,(1991), J. Maharashtra agric. Univ. 16:435
- Patel,D.V. et. al., (1993), J. Maharashtra agric. Univ. 18:261-263
- Raju,(2003), Ph. D thesis, Tamil Nadu Agril. Univ., Tamilnadu.
- Teli,C.B.,(1993), M.Sc(Agri) Thesis, Univ. of Agric. Sci. ,Dharwad
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In this Article
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Become a Reviewer/Member
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Published In
Agricultural Science Digest