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  • Zea mays

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The fertilization recommendation she is complex, due to dynamics of the transformations of nitrogen in the ground, its mobility and to the factors that influence in the exploitation for the plants. Transformations and losses of nitrogen in the ground can occur through known processes as: mineralização and immobilization, nitrificação and desnitrificação, leaching and volatilização. When the u ...

SUBJECT: يوريا; مزارع شجرية; soil; 尿素; losses

POSTED TO: Revista Agrarian [1984-2538]

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The technique known for green fertilization is based on the use of other cultures that exactly without commercial ends directly, can improve the results of great cultures. The green fertilization has effect differentiated on the ground, as source of nutrients, being mainly distinguished the nitrogen. With the objective to after evaluate the development of the culture of the maize and the physi ...

SUBJECT: aplicación de abonos; physique du sol; 土壤物理学; 施肥; fertilisation

POSTED TO: Revista Agrarian [1984-2538]

The objective of this work was to evaluate the grazing cattle in a straw in biotech maize in the physical properties of soil and productivity of subsequent soy beans. The experimental design was a randomized block, consisting of two factors: grazing, with (CP) and without (SP), and three managements, convencional tillage performed with two disking (PC), two disking to 0.10 m depth (2G) and til ...

SUBJECT: grazing; 放牧; تراص التربة; pacage; 土壤压实

POSTED TO: Revista Agrarian [1984-2538]

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Many large data sets have resulted from over 100 years of maize and teosinte research, but they have not been compared quantitatively. Comparisons can be facilitated using standardized distance matrices (SDMs), setting the average distance between sections Luxuriantes and Zea at 100. Differences between SDMs can guide revision both of teosinte and maize taxonomy and of models of Zea evolution. ...

SUBJECT: specie; cytology; usa; taxonomy; andean region

POSTED TO: Maydica (Italy) [0025-6153]

SUBJECT: ascendencia; ancestry; evolucion; ascendance; variazione genetica

POSTED TO: Maydica (Italy) [0025-6153]

Pollen and silk attributes as well as floral synchrony are the most important morphological features that influence pollination and gene flow in the genus Zea. To characterize floral morphology and synchrony, 115 teosinte populations, 60 maize accessions representing 53 landraces, three improved open pollinated varieties and 14 commercial hybrids were evaluated. A high level of variation among ...

SUBJECT: sperimentazione in campo; diametro; fenologia; polline; field experimentation

POSTED TO: Maydica (Italy) [0025-6153]

Variability for the timing of vegetative phase change has been related to disease and pest resistance and to agronomic performance and could be a useful indirect selection criterion. Our objective was to determine the variability for phase transition among populations from historical races of maize (Zea mays L.) and wild species and subspecies of Zea. Principal component and cluster analysis w ...

SUBJECT: pest resistance; cycle de developpement; resistance aux maladies; field experimentation; ciclo vital

POSTED TO: Maydica (Italy) [0025-6153]

Study was conducted in the Mahidasht station to phenotypical evaluation,selection and selfing of S1 inbred lines (179 lines of late and medium maturing corn groups) and production of S2 inbred lines. Experiment was carried out on 20 two rows for each lines. Elongation of the row was 8 meters and distance of hill was 50 centimeters. Planting date was done in 2 of May and first irrigation done i ...

SUBJECT: iran republica islamica; kerman shah (province); maturity; autofecundacion; madurez

To better understand the introgression relationship between maize and teosinte, especially with Zea diploperennis, the chromosome constitutions were determined for (a) five maize inbred lines (three of subtropical origin, one tropical and one from temperate region), (b) progenies of the third backcross to maize of the five inbred lines and Z. diploperennis from Las Joyas of the Sierra de Manan ...

SUBJECT: histocytological analysis; lineas consanguíneas; messico; maïs; zea diploperennis

POSTED TO: Maydica (Italy) [0025-6153]

The objective of this work was to evaluate the ear characteristics and yield grains of different hybrids of maize in a winter in southwest Goiás state. Were grown eight hectares of winter maize, between January to June 2007. The experiment consisted of four different hybrids of maize: DG 213 Turbo, DG 501, DG 601 Elite and P30K75. Were cultivated 2 hectares for each hybrid. Evaluated the lengt ...

SUBJECT: 苗种培育; plante à grains; نباتات الحبوب; variabilidad genética; cultivos de grano

POSTED TO: Revista Agrarian [1984-2538]

FULL TEXT AVAILABLE