Volume 10, Issue 28 (12-2018)                   jcb 2018, 10(28): 110-118 | Back to browse issues page


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sadeghi F, Bagheri M. Comparison of Grain Yield and Earliness of New Maize Hybrids in Kermanshah. jcb. 2018; 10 (28) :110-118
URL: http://jcb.sanru.ac.ir/article-1-826-en.html
Seed and Plant Improvement Departments, Kermanshah Agricultural and Natural Resources Research Center, AREEO, Kermanshah, Iran.
Abstract:   (484 Views)
In order to evaluate the grain yield and other agronomic and qualitative characteristics of foreign corn hybrids, this experiment was conducted with 13 new maize hybrids and two commercial hybrids (BC-62, BC632, BC-621, BC628, BC-512, BC-595, PL-472, BC-525, Valbum, BC-626, BC-585, Torro, Simon, KSC 704 and KSC 703), in a randomized complete block design with four replications in Mahdasht research station in 2016. Analysis of variance showed that the effect of cultivar on grain yield, yield components and grain yield was significant at 1% probability level. The BC-621 was the best hybrid with a 100 seed weight of 359 gr, very low percentage of cob weight (12.4%) and high grain yield (15.060 t/ha) and shorter physiological maturation time (137 days). The BC-512 and BC-626 hybrids with physiological ripening time (138 and 136 days) and 1000 kernel weight (331 and 324 g) and cob (13.5% and 16.7%) and grain yields (14.430 and 13.830 t/h) were superior hybrids. The Torro hybrid was also a good cultivar with a 1000 kernel weight of 396 grams and a cob percentage (15 %) and a grain yield of 12.980 t/h and a physiological ripening time of 137 days. These hybrids are high-yielding and compatible and very suitable for cultivation in the temperate regions of Kermanshah province. These hybrids were a very suitable in terms of type, plant height and low leaf shade in the plant, and the ability to penetrate sunlight on the lower leaves. The four hybrids yields were about 3 to 5 t/h higher than the KSC704 and KSC703 controls. Also they had more tolerance to corn common disease. 
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Type of Study: Research | Subject: General
Received: 2017/10/1 | Revised: 2019/03/2 | Accepted: 2018/04/3 | Published: 2019/03/2

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