EFFECT OF SOWING PATTERN AND SEED RATE ON THE YIELD AND QUALITY OF WHEAT (Triticum aestivum ) SEED IN MID HILL CONDITIONS
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Date
2017-07-18
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CSHHPKV Palampur
Abstract
Wheat (Triticum aestivum) is the most important staple food of the majority of
world’s population. It is the most important crop of Himachal Pradesh during winter season in
low and mid hills of the State. Manipulation of agronomic practices such as planting
pattern/geometry and seed rate are considered to be foremost step to achieve proper
distribution of plants over cultivated area, thereby better utilization of above and below
ground natural resources towards increasing yield. A field and laboratory investigation was
undertaken to study the effect of different planting patterns and seed rates on seed production
and its quality in wheat by evaluating the yield and quality parameters. The experiment with
twelve treatment combinations comprising of four planting patterns (15 cm, 23 cm, 15 x 15
cm and 23 x 23 cm) and three seed rates (100, 120 and 140 kg/ha) was conducted in
Randomized Block Design with three replications during Rabi 2015 at the experimental farm
of department of Seed Science and Technology. The observations recorded revealed that
planting patterns of 23 x 23 cm resulted in significantly more plant height, leaf area index,
number of spikes/m2
, spike length, number of spikelets per spike, number of grains per spike,
biological yield, seed yield, seed recovery percentage, 1000 seed weight and vigour index
over other planting patterns. No significant effect of different planting patterns on number of
shoots/m2
after complete emergence, days to 50 % heading, harvest index and germination
percentage was observed. 140 kg/ha seed rate produced significantly higher number of shoots
per m², leaf area index, number of spikes per m², biological and seed yield over 120 kg/ha and
100 kg/ha seed rate.