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Grain Yield and Critical Yield Determining Component of Bread Wheat Varieties in Response to Sowing Dates

Grain Yield and Critical Yield Determining Component of Bread Wheat Varieties in Response to Sowing Dates

Javed Iqbal1, Ali Zohaib1*, Muzzammil Hussain1, Iftikhar Ahmad1, Adnan Bashir1, Wardah Muzaffer2, Naeem Faisal1, Muhammad Tahir Latif1 and Sami Ullah1

1Adaptive Research Farm, Gujranwala 52200, Pakistan; 2Sugarcane Research Institute, Ayub Agricultural Research Institute, Faisalabad 38000, Pakistan.

alizohaib208@gmail.com 

Figure 1

Effect of sowing time on grain yield of wheat. Bars are mean ± SE of three replications. Bars sharing same letter don’t differ significantly. 

Figure 2

Relationship between (a-e) sowing time and emergence count (plants m-2), and (f-j) sowing time and number of tillers m-2 during 2011-12 to 2013-14. Coefficients of determination (R2), significance of coefficients (P < 0.05) and dependence of (a-e) emergence count m-2 (y) and (f-g) number of tillers m-2 (y) on sowing time (x) are given (n = 4). 

Figure 3

Relationship between (a-e) sowing time and 1000-grain weight (g), and (f-j) sowing time and number of grains spike-1 during 2011-12 to 2013-14. Coefficients of determination (R2), significance of coefficients (P < 0.05) and dependence of (a-e) 1000-grain weight (y) and (f-g) number of grains spike-1 (y) on sowing time (x) are given (n = 4). 

Pakistan Journal of Zoology

October

Vol. 52, Iss. 5, Pages 1631-2026

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