Study of Genetic Behaviour of Interspecific Crosses of Maize-Teosinte (1)

Abdel-Aty, M. S.; Yousef, Soad A.; Ghazy, Mona; Basueny, S. H.

doi:10.21608/jpp.2013.75100

Cited by 1 publication

(5 citation statements)

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“…Also, cross (L 3 × T 3 ) showed good SCA effect for ears dry weight/ plant (under stress irrigation regime). In this concern, Sakr and Ghazy (2010), Abdel-Aty et al (2013), Hatab (2014), Ghazy (2016), Habeba (2019) and Shaibu et al (2021) found highly significant positive SCA effects in maize × teosinte crosses in some growth characters and forage productivity.…”

Section: Specific Combining Ability: (Sca)mentioning

confidence: 85%

“…The cross (L 1 × T 1 ) was considered the best hybrid regarding chemical composition traits, since it produced the highest significant values of protein%, carbohydrates% and ash% under the three irrigation regimes. In this concern, Niazi et al (2015) and Nanavati et al (2016) found variation among maize and teosinte as well as their crosses in protein %, Flint-Garcia et al (2009) in carbohydrate % and Hatab (2014) and Mousa et al (2017) in ash %.…”

Section: -Chemical Compositionmentioning

confidence: 88%

“…However, insignificant variation were detected among the other tested maize and teosinte parents for the rest of chemical analysis under the other irrigation regimes. Hatab (2014), Mousa et al (2017) and Sakr (2017) who found a significant differences among maize and teosinte genotypes in the protein and ash contents.…”

Section: -Chemical Compositionmentioning

confidence: 95%

“…However, the mean squares of testers were not significant for numbers of tillers and leaves plant -1 and leaves fresh weight plant -1 (under the three irrigation regimes) as well as leaves area plant -1 (under normal and moderate) and leaves dry weight plant -1 (under moderate regime). In this respect, many researchers found a significant variation among genotypes of maize, teosinte and their hybrids under any of irrigation regimes for some growth characters (Abdel-Aty et al, 2013) and Ghazy, 2016) and for forage yield (Sakr and Ghazy, 2010).…”

Section: -Growth Characters and Forage Productionmentioning

confidence: 99%

“…Hybrids grew quicker than either their parents and on average had 2-3 tillers plant -1 and consequently more leaves plant -1 than maize. The information about ''maizente" has been given by several authors (Abdel-Aty et al, 2013;Hatab, 2014;Sakr, 2017;Mousa et al, 2017 andBendary et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of Some Maize-Teosinte Hybrids and Their Parents Under Water Stress Conditions

Elshamarka,

Ali,

El-Nahas

et al. 2024

Menoufia Journal of Plant Production

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The study was carried out to evaluate some maize-teosinte hybrids under water stress conditions, seven parent genotypes i.e., maize (S.C. 130, S.C. 168, T.W.C. 321 and T.W.C. 352) as female and teosinte (Gemmeiza 3, Gemmeiza 4 and Sakha 1) were used as male. Genotypes were crossed using by line × tester mating design to produce 12 F 1 crosses. Tested genotypes, i.e., seven parents (four maize and three teosinte) as well as their 12 F1 crosses were evaluated under three irrigation regimes i.e., irrigation every 12 (normal), every 18 (moderate) and every 24 days (stress regime). Mean performance and combining ability (general and specific). For tested genotypes (growth characters and forage production, physiological parameters, chemical composition in forage plants, grains yield and its components of maize as well as water use efficiency/ fad and drought tolerance indices. Results cleared that, analysis of variance was highly significant among the tested genotypes (parents and crosses) for most characters studied under the three irrigation regimes. The three teosinte parents were superior to the four maize parents in most growth characters and forage productivity under the three irrigation regimes. Moreover, teosinte parents Gemmeiza 3 (T 1 ) and maize parent S.C. 130 (L 1 ) produced the highest values of most characters as well as forage productivity. In addition, all 12 tested crosses had the highest values of most measured traits that were higher than that obtained by their parents (maize or teosinte). S.C. 130 x Gemmeiza 3 (L 1 x T 1 ) cross which gave the highest values under the three irrigation regimes. Exposing the tested seven parents (four maize and three teosinte) and their crosses to drought stress by increasing irrigation intervals from 12 to 18 and 24 days caused a gradual decrease in their most characters as well as fresh and dry forage yields/ fad. Maize genotype S.C. 130 (L 1 ) and teosinte genotype Gemmeiza 3 (T 1 ) exhibited highly significant (useful) GCA effect for most characters studied as well as fresh and dry forage yields/ fad generally in all tested irrigation regimes. Crosses (L 1 x T 1 , L 4 x T 3 ) exhibited the highest significant positive desirable SCA effect for all studied as well as fresh and dry forage yields fad -1 (under the three irrigation regimes). GCA/SCA variance for all traits studied were less than unity under all irrigation treatments. The data showed generally that water use efficiency (WUE) of the three tested teosinte parents was superior to the four tested maize parents under the three irrigation regimes. The highest values of WUE for teosinte parents were obtained by Gemmeiza 4 (T 2 ) genotype, while for the maize parents were obtained by SC130 (L 1 ) genotype at the three irrigation regimes. All 12 F 1 crosses (maize x teosinte) significantly surpassed their parents in WUE under three irrigation regimes. The highest values of WUE were obtained by crosses (L 1 x T 1 ), (L 2 x T 1 ), (L 4 x T 3 ), (L 3 x T 3 ) and (L 3 x T 2 ) in descending order when they were irri...

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