Response of Niger (Guizotia abyssinica Cass.) to Date of sowing, Plant Geometry and cycocel under Raiafed Condition
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Date
2013
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Publisher
UAS, Dharwad
Abstract
A field experiment was conducted to study the response of niger (Guizotia abyssinica
Cass.) to date of sowing, plant geometry and cycocel under rainfed condition at AICRP on
Sorghum, Main Agricultural Research Station, Dharwad during kharif 2012. The experiment
was laid out in RCBD (Factorial) with three factors along with single control. The first factor
comprising three dates of sowing (I FN July, II FN July and I FN August), second factor
including two plant geometries (45×10 cm and 60×10 cm) and third factor was two levels of
cycocel at 30 DAS (500 ppm and 1000 ppm) with control (II FN June at 30×10 cm plant
geometry). Among the dates of sowing, I FN July sown crop recorded significantly higher
seed yield (639 kg ha-1), net returns ( 16053 ha-1) and B: C ratio (1.91). Plant geometry of
45×10 cm recorded significantly higher seed yield (615 kg ha-1), net returns ( 14190 ha-1)
and B:C ratio (1.81). Cycocel spray @ 1000 ppm recorded significantly higher seed yield
(614 kg ha-1), net returns ( 13922 ha-1) and B: C ratio (1.79). Interaction effects showed that,
July I fortnight sowing at 45 cm x 10 cm plant geometry with application of cycocel @ 1000
ppm at 30 DAS recorded significantly higher seed yield (675 kg ha-1), net returns ( 17673 ha-
1) and B: C ratio (2.00) as compared to others. The growth and yield components of niger
viz.,number of branches per plant, number of capitula per plant, number of seeds per
capitulum, seed weight per capitulum, test weight and N, P, K uptake by crop were also
significantly higher.