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Comparative performance of
various wheat (Triticum aestivum L.) cultivars to
different tillage practices under tropical conditions
M. S. I. Zamir*,
Azraf-ul-Haq Ahmad and H. M. R. Javeed
Department of Agronomy, University of Agriculture,
Faisalabad-38000, Pakistan.
*Corresponding author. E-mail:
zamir757@gmail.com.
Accepted 7 June, 2010 |
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Various tillage practices can overcome the delay sowing of
wheat in the rice-wheat cropping system of Pakistan to
sustain the grain yield by increasing the nutrients and
water use efficiency. A field experiment was conducted to
evaluate the effect of different tillage practices (zero
tillage and conventional) on growth and yield of four wheat
(Triticum aestivum L.) cultivars viz. Inqalab-91,
Chenab-2000, Bhakkar-2002, and Iqbal-2002 under tropical
conditions at the University of Agriculture Faisalabad,
Punjab, Pakistan. The treatments comprised of zero tillage
and conventional tillage with four wheat cultivars having 23
cm row spacing. Zero-tillage practices and response of
different wheat varieties significantly (p<0.05) affected
plant height, the total number of tillers m-2
spike length, number of grains per spike, 1000-gain weight,
grain yield, straw yield and harvest index. Higher grain
yield was recorded in zero tillage due to more number of
tillers per unit area than the conventional tillage. The
results obtained suggested adoption of zero-tillage
practices for Pakistan and Inqalab-91 with the assurance of
satisfactory yield production in rice-wheat cropping system
in the tropical areas.
Key
words:
Zero tillage, grain yield, growth, wheat, Pakistan,
biological yield, conventional tillage, number of tillers.
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