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Evaluation of genetic behaviour of vegetative and earliness traits in maize hybrids at two locations [electronic resource].

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Abd El-Hadl, A. H

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Language: English Summary language: Arabic Description: p.2491-2497Other title:

تقييم السلوك الوراثى لبعض الصفات الخضرية والتبكير فى بعض هجن الذرة فى منطقتين مختلفتين [Added title page title]

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Mansoura University journal of agricultural sciences, 2007 v. 32 (4) [electronic resource].

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In: Mansoura Unviersity Journal of Agricultural Sciences 2007.v.32(4)Summary: This investigation was carried out to evaluate the genetic behaviour of earliness and vegetative traits of maize at two locations. Therefore, 11 inbred lines of maize were crossed among them according to factorial arrangement to obtain 30 Ft hybrids. Five Inbned fines were used as male parents while six inbred lines were used as female parents. All genotypes (41) were evaluated at two locations. The first location was the fann of Genetic Department, Faculty of AgricUlture, Mansouri! University (L,) while the second location (L2) was the fann of Faculty of Agriculture, Sohag University. Different earliness and vegetative traits were studied. These traits were: plant height in centimeters (P.H.), number of leaves per plant (No. UP.), leaf area (L.A.), number of days to 50% tasseling (No. D. 50%.T.) and number of days to 50% silking (No. D. 50% 5.). The results of the combined analysis indicated that all studied vegetative and earliness traits showed significance among evaluated genotypes. Similarly, the interaction between genotypes and location (g x L.) were also significant for all studied traits except P.H. The results also revealed that P.H. and N.L.IP. showed positive and highly significant values of heterosis versus the mid-parents. On the other hand, the two earliness traits (No. D. 50%. T.) and (No. D. 50%. 5.) showed significant and negative (desirable) values. The results cleared that the variances of male, female and M. x F. were significant for most studied traits. The results indicated that the values of heritability in brood and narrow senses were medium for most studied traits.

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This investigation was carried out to evaluate the genetic behaviour of earliness and vegetative traits of maize at two locations. Therefore, 11 inbred lines of maize were crossed among them according to factorial arrangement to obtain 30 Ft hybrids. Five Inbned fines were used as male parents while six inbred lines were used as female parents. All genotypes (41) were evaluated at two locations. The first location was the fann of Genetic Department, Faculty of AgricUlture, Mansouri! University (L,) while the second location (L2) was the fann of Faculty of Agriculture, Sohag University. Different earliness and vegetative traits were studied. These traits were: plant height in centimeters (P.H.), number of leaves per plant (No. UP.), leaf area (L.A.), number of days to 50% tasseling (No. D. 50%.T.) and number of days to 50% silking (No. D. 50% 5.). The results of the combined analysis indicated that all studied vegetative and earliness traits showed significance among evaluated genotypes. Similarly, the interaction between genotypes and location (g x L.) were also significant for all studied traits except P.H. The results also revealed that P.H. and N.L.IP. showed positive and highly significant values of heterosis versus the mid-parents. On the other hand, the two earliness traits (No. D. 50%. T.) and (No. D. 50%. 5.) showed significant and negative (desirable) values. The results cleared that the variances of male, female and M. x F. were significant for most studied traits. The results indicated that the values of heritability in brood and narrow senses were medium for most studied traits.

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