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ANBAR JOURNAL OF AGRICULTURAL SCIENCES

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Estimation several genetic parameters for corn ear characters

    F. Y

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2016, Volume 14, Issue 1, Pages 103-127

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Abstract

A field trails were conducted at the experimental field of Crops Science Department, College of Agriculture, University of Baghdad during spring and fall seasons of 2004 and spring season of 2005. The objective of this research was to evaluate daillel crosses developed from 10 inbred lines , Bk26, Bk43, Bk25, Bk39, Bk3, Bk41, Bk65, Bk16, Bk55 and Bk11 (recommended from last research) and estimate several genetic parameters for corn (Zea mays L) ear characters. Inbred lines propagated and full diallel crosses carried out. Varietal trails were conducted using Latice Design with four replications to evaluate single crosses , their reciprocals and parents in fall season 2004 and spring 2005 .The diallel crosses Bk25xBk55, Bk55xBk26, Bk39xBk3,Bk65xBk55 and reciprocal cross Bk16xBk41 in fall season and Bk16xBk55, Bk3xBk16 and reciprocal crosses Bk39xBk65, Bk65xBk3 in spring season superior in ear length . Several daillel crosses and reciprocals produced plants with higher number /ear and number of grains /ear, in both seasons. The highest number of grains/ear produced from daillel cross Bk26xBk25 and reciprocal Bk39xBk25 in fall season and daillel cross Bk43xBk55, reciprocals Bk3xBk41, Bk3xBk25, in spring season. Several crosses superiored in grain weight. The results showed importance of cytoplasmic effects and significance of general and specific combining ability in all the studied traits. The average degree of dominance more than one for daillel and reciprocal crosses in both seasons. All the studied traits under non-additive gene action.
Keywords:
    genetic parameters Corn Ear daillel crosses
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(2016). Estimation several genetic parameters for corn ear characters. ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 14(1), 103-127.
F. Y; Baktash; Nadhem; Y.A. "Estimation several genetic parameters for corn ear characters". ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 14, 1, 2016, 103-127.
(2016). 'Estimation several genetic parameters for corn ear characters', ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 14(1), pp. 103-127.
Estimation several genetic parameters for corn ear characters. ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2016; 14(1): 103-127.
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