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Response of yield , yield components , grain protein percent and grain protein yield of sorghum [Sorghum bicolor (L.) Moench] to nitrogen fertilizer | ||
| Journal of Tikrit University For Agriculture Sciences | ||
| Article 1, Volume 12, Issue 1, 2012, Pages 62-70 | ||
| Author | ||
| S. N. A. Al-sadoon | ||
| Abstract | ||
| Abstract : A field experiment was conducted in two seasons (spring and fall 2009) in silty loam soil, in Anbar-governorate, to investigate the effect of four nitrogen fertilizer levels (0, 100, 200 and 300) kgN.ha-1on grain protein yield and its correlation with grain yield and Grain protein percent of three sorghum cultivars (Rabeh, Inkath and Kaffer). Factorial arrangement was used according to the randomized complete block design with three replications. Inkath cultivar showed the highest grain yield(61.7, 64.7 gm.plant-1 )in spring and fall respectively , and grain protein yield (608.7, 637.2 kg.ha-1) in spring and fall respectively . Rabeh cultivar recorded the highest kernels number per m2(29270 , 29440 kernels) in spring and fall respectively . Kaffer cultivar gave the highest average of kernel weight(0.02424 , 0.02631) in spring and fall respectively , and grain protein percent (10.69 , 10.62 gm) in spring and fall respectively. The level of N fertilizer (200 kgN.ha-1) gave the highest grain yield(62.4 , 65.7 gm.plant-1 ) in spring and fall respectively ; 300 kgN.ha-1 in spring and 200 kgN.ha-1 in fall gave the highest grain protein yield (646.3 , 673.5 kg.ha-1) respectively . Inkath cultivar produced the highest grain yield and grain protein yield(68.3 gm.plant-1 , 685.1 kg.ha-1 ) at 300 kgN.ha-1 in spring , (69.1 gm.plant-1 , 689.0 kg.ha-1 ) at 200 kgN.ha-1 in fall. Kaffer cultivar showed the highest grain protein percent (11.13 , 10.85 %) in spring and fall respectively. Grain protein yield correlated with grain yield more than its correlation with grain protein percent. The conclusion, grain protein yield can be good index for proteins production efficiency. | ||
| Keywords | ||
| grain protein; Sorghum | ||
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