Yielding Ability and Nitrogen Use Efficiency in Maize Inbred Lines and Their Crosses

Hefny, Mohamed; Aly, A.

doi:10.3923/ijar.2008.27.39

Cited by 17 publications

(17 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The increase in mean performance in these traits at high rate of nitrogen might be due to the simulating effect of nitrogen on metabolic process in maize plant. These results are in agreement with those obtained by (Ayub et al, 2002, Eltelib et al, 2006Hefny and Aly, 2008;Ngaboyisonga et al, 2009;Tamilarasi andVetriventhan, 2009 andEL-Badawy et al, 2010).…”

Section: Resultssupporting

confidence: 92%

“…Such variability among maize genotypes for yield and its components were recorded by several investigators. Among those are: El-Hosary and El-Badawy, 2005; Mosa and Motawei, 2005;Dadheech and Joshi, 2007;Sedhom et al, 2007, Hefny andAly, 2008;EL-Badawy et al, 2010 andHefny, 2011.…”

Section: Mean Performancesmentioning

confidence: 99%

“…These finding confirm with those obtained above from the ordinary analysis of variance. The interaction between both types of combining abilities and environmental changes were reported to be significant for earliness and grain yield plant -1 (Mosa, 2003;El-Badawy, 2006;Mosa and Motawei, 2005;Dadheech and Joshi, 2007;Sedhom et al, 2007 andAly, 2008).…”

Section: Combining Abilitymentioning

confidence: 99%

See 2 more Smart Citations

Heterosis and Combining Ability in Maize Using Diallel Crosses Among Seven New Inbred Lines

El-Badawy

2012

Journal of Plant Production

View full text Add to dashboard Cite

A half diallel cross between 7 inbred lines of maize was evaluated under two different nitrogen rates for six quantitative characters. Nitrogen rates, genotypes, parents, hybrids and parents vs crosses mean squares were significant for all traits. Significant genotype x nitrogen rate mean squares were obtained for days to 50% maturity, No. of rows ear-1 and shelling%. Significant interaction mean squares between hybrids x nitrogen rates were detected for days to 50% maturity, No. of rows ear-1 and grain yield plant-1. General and specific combing ability (GCA and SCA) mean squares were significant for all traits. GCA/SCA ratios revealed that the additive and additive x additive types of gene action were the most important expressions for days to 50% maturity, number of rows ear-1 and shelling% in both and nitrogen rates and combined analysis. Significant interaction mean squares between nitrogen rates and GCA and SCA were detected for most traits. The crosses P1xP2 and P1xP7 at the low nitrogen level, P1xP4, P1xP6, P1xP7 and P2xP5 hybrids at the normal nitrogen level and the hybrid P1xP7 in the across nitrogen levels, were out yielded the check hybrid (Pioneer 30K8). Also, single cross P1xP7 did not differ significantly from the hybrid Hytech 2031 in low nitrogen rate and combined analysis for grain yield plant-1. The parental inbred line No. 4 gave a good combiner for No. of rows ear-1 and grain yield plant-1 at both and across nitrogen rate. The most desirable inter and intra allelic interactions were presented by combinations: P1xP6, P1xP7, P2xP6 and P5 xP6 for 100-kernel weight, P1xP2, P1xP4, P1xP6, P1xP7, P2xP3, P2xP5, P2xP7 and P4xP7 for grain yield plant-1 and P1xP4 and P4xP7 for shelling%. These crosses may be prime importance in breeding programs either towards hybrid maize production or synthetic varieties composed of hybrids which involved the good combiners for the traits in view.

show abstract

Section: Resultssupporting

confidence: 92%

Section: Mean Performancesmentioning

confidence: 99%

Section: Combining Abilitymentioning

confidence: 99%

See 1 more Smart Citation

Heterosis and Combining Ability in Maize Using Diallel Crosses Among Seven New Inbred Lines

El-Badawy

2012

Journal of Plant Production

View full text Add to dashboard Cite

show abstract

“…Bolaños (1994) studied in eleven localities and concluded EFN hybrid maize yielded from 1 to 1.5 t ha -1 more grain against open-pollinated varieties; and he suggested improving seed is directed to a combination of materials with grain filling efficiency and a longer duration of the filling phase. Hefny and Aly (2008) on the study of 16 crosses of maize found deficiency of N delaying flowering, accelerating senescence, reduced biomass and yield components and protein content in the grain, so cross with high efficiency of use of N must be selected. Gallais and Hirel (2004) cited that this phenomenon quite is complex regarding the interaction of genotype-N supply and environmental burdens in relation to gene expression and enzymatic processes for the maize plant is efficient in the use of N; for this reason, studies are suggested that integrate quantitative genetics, molecular markers and genomics to various aspects of physiology and agronomic management to identify genes with qualities to give a higher N uptake rate by the roots in soils of low fertility and also have rapidly translocation to the cob, for inclusion in seed improvement programs.…”

Section: Materiales Y Métodosmentioning

confidence: 99%

“…The indices of grain (ICG) were virtually identical to the M-59 (0.57) vs H-47 (0.55); but is seen in H-47 in contrast the omission plot (-N) with ICG 0.50, surpassed by all the fertilization treatments, while with the M-59 the opposite happened because the (N) value of 0.58 was higher or equal to the other fertilizer treatments (Table 6). The above shows the genetic load of each hybrid that has adaptive response to the omission of some macro element according to (Gallais and Hirel, 2004;Hefny and Aly, 2008); and it is useful to adopt the best practices of site-specific fertilization (Roberts, 2007).…”

Section: Apparent Physiological Efficiency (Efa) Of H-47 and H-59 By mentioning

confidence: 99%

Eficiencia fisiológica de N, P, K y Mg en maíces H-47 y H-59

Zamudio-González

Tadeo-Robledo

Espinosa-Calderón

et al. 2017

Remexca

View full text Add to dashboard Cite

La baja eficacia del uso de fertilizantes en suelos agrícolas impacta negativamente en la productividad y sustentabilidad de los sistemas de producción. Se calcularon los índices de la ef iciencia f isiológica aparente (EFA) de diferentes tratamientos de fertilización al suelo para los híbridos H-47 y H-59.LaEFAdeunnutrimentoeselcocientedeloskgdegrano cosechado por kg de N, P, K o Mg en la biomasa del cultivo para una hectárea. Se utilizó un factorial completo de cinco híbridos por ocho tratamientos de fertilización bajo el concepto de “parcelas de omisión”, modalidad de la Ley del Mínimo de Leibniz. La fórmula “completa y suficiente” en kg ha-1 para cosechar al menos 10 t ha-1 de grano de maíz fue: 240N-90P2O5- 80K2O-60S-50MgO-380CaO (T8). Con la sucesiva omisión de un macro nutrimento se obtuvieron: T1 (-N), T2 (-P), T3 (-K), T4 (-S), T5 (-Mg), T6 (-Ca) y T7 (“agricultor” con 70% de la dosis de NPK de “dosis completa”; pero sin S, Mg y Ca). Se sembró con 90 mil semillas por hectárea en suelo con “punta de riego” el 13 de mayo. Características de mazorca y cosecha se midieron por cuadriplicado. Con los contenidos de macro nutrimentos en biomasa y producción de grano de H-47 y H-59 se calcularon las EFA,s de tratamientos de omisión de N, P, K y Mg. Las variables se analizaron con SAS y se separaron las medias con prueba de Tukey al 5%. Las EFA, s del conjunto de los tratamientos de fertilización fueron: para H-47 de 33.6/N, 232.4/P, 51.7/K y 553.4/Mg; y para H-59 de 39.0/N, 181.1/P, 67.1/K y 421.8/Mg. Los valores de EFA cambian más asociado a genotipo en comparación a la omisión de algún macro nutrimento.

show abstract

Effect of organic and conventional farming systems on nitrogen use efficiency of potato, maize and vegetables in the Central highlands of Kenya

Musyoka

Adamtey

Muriuki

et al. 2017

European Journal of Agronomy

View full text Add to dashboard Cite

Yielding Ability and Nitrogen Use Efficiency in Maize Inbred Lines and Their Crosses

Cited by 17 publications

References 22 publications

Heterosis and Combining Ability in Maize Using Diallel Crosses Among Seven New Inbred Lines

Heterosis and Combining Ability in Maize Using Diallel Crosses Among Seven New Inbred Lines

Eficiencia fisiológica de N, P, K y Mg en maíces H-47 y H-59

Effect of organic and conventional farming systems on nitrogen use efficiency of potato, maize and vegetables in the Central highlands of Kenya

Contact Info

Product

Resources

About