Potential Of Corn Research Articles

The potential of corn (Zea Mays) for phytoremediation of soil contaminated with heavy metals

The potential of corn (Zea Mays) for phytoremediation of soil contaminated with heavy metals

Experimental Study on the Status of Maize Mycotoxin Production in Farmers' Grain Storage Silos in Northeastern China.

The scientific rationality of farmers’ grain storage technology and equipment is crucial for the biosecurity of grain in the main grain-producing areas represented by Northeast China. In this paper, four farmer grain storage mock silos of different widths were used as a means to track an experimental cycle of grain storage. The absolute water potential of corn in all four silos at the beginning of the experiment was greater than the absolute water potential of air, prompting moisture migration from the grain interior to the air and down to about 14%. Moisture was influenced by wind direction, and moisture decreased faster with better ventilation on both sides of the grain silos. Therefore, grain silo width has a significant effect on the drying effect under naturally ventilated conditions of maize ears. This research focused on the determination and assessment of mycotoxin contamination under farmers’ storage grain conditions and analyzed the effect of silo structure on the distribution of mycotoxin contamination. When the width was too large, areas of high mycotoxin infection existed in the middle of the grain silo, and ventilation and tipping could be used to reduce the risk of toxin production. This study proved that reasonable farmer grain storage techniques and devices in Northeast China can effectively protect grain from mycotoxin contamination.

CORN ROOT AREA MYСOCENOSIS UNDER THE INFLUENSE OF CHAETOMIUM GLOBOSUM AS DESTRUCTOR OF STRAW

Quantitative and qualitative composition offungi in the rhizosphere soil of corn wasstudied. It was shown that introduction of strawinto the soil resulted in an increase the numberof representatives of Fusarium Link and Bipolaris Shoemaker genus, which often includephytopathogenic and phytotoxic fungi, whichcan affect plants, reducing crop yield andquality. It has been established that applicationof Chaetomium globosum 377 fungus as destructor of wheat straw leads to the decrease inrhizosphere of corn plants the number ofrepresentatives of these genus and an increasein Trichoderma Pers ex Fr. Thus application ofC. globosum 377 as destructor of plant residuesupports to increase the antagonistic potentialof corn rhizosphere soil and protect plants frompathogens.

Potential of Corn as Forage on Alfisol and Vertisol Soil in Agrosilvopastural System with Kayuputih (Melaleuca leucadendron Linn)

This research was aimed to know the morphologic and physiologic characteristics and corn plant production as forage on alfisol and vertisol soil at Kayuputih intercropping system. Supporting forage supply is one of goals in forest for food/feed program, and it significantly showed at Kayuputih (Melaleuca leucadendron Linn) intercropping system. Kayuputih intercropping system of corn was planted particularly at the 3rd rotation (May-July). The research performed by a strip plot design, soil type was the main plot, and the interface zone (IZ) was the secondary plot. Interface zone was 1 m (IZ-1), 2 m (IZ-2), and 3 m (IZ-3) distance from the Kayuputih plantation row. Growth and physiologic data was analyzed using Bartlette to obtain data homogenity, followed by analysis of variance and DMRT at 5% degree of confidence, data transformation was performed when needed. Contrast orthogonal (5%) test was used to do the grouping based on soil type. Biplot technique as a development from the multivariate technique was performed to determine the stability of IZ treatment toward result. Forage potency on alfisol was higher (5.04 ton/ha) than on vertisol (4.04 ton/ha). Interaction between the IZ and soil type was found at several variables: number of stomata, stomatal aperture width, proline content, plant growth rate on 3-6 wap, net assimilation rate on 3-6 wap, fresh root weight on 3 wap, root dry weight on 3 wap, fresh canopy weight on 6 wap and canopy dry weight on 6 wap. The highest level of corn forage production was IZ-3 on alfisol soil (1.26 ton/ha) and the lowest production was IZ-1 on vertisol soil (0.73 ton/ha).

The Affect of Corn

The Affect of Corn

Diurnal Fluctuation of Leaf‐water Potential of Corn as Influenced by Soil Matric Potential and Microclimate1

AbstractWater stress during critical growth periods is frequently the limiting factor in crop production. However few data are available on the variation of plant water status under field conditions. The object of this work was to quantify the effect of soil matric potential on plant water status. Sweet corn (Zea mays L.) was grown on a Varina sandy loam soil to determine the effect of the microclimate and irrigation on leaf water potential. Soil water stress was imposed naturally and by use of automated portable shelters that covered the plots during rainfall.Leaf‐water potential was closely related to the diurnal change of incoming energy. A maximum leaf‐water potential of −1.5 bars occurred just prior to sunrise. The minimum value, which occurred during the peak radiation load or stress, was dependent on soil matric potential and stage of plant development. Before tasseling, soil matric potentials of −0.08 and −0.60 bar at the 15‐cm depth in irrigated and nonirrigated plots resulted in minimal leaf‐water potentials of −12 and −18 bars, respectively. After tasseling, soil matric potentials were −0.07 bar at the 15‐cm depth in the irrigated and −3.0 bars in the nonirrigated plots, and the same minimal leaf‐water potential of −18 bars developed for both. Under the same radiation load, minimal leaf‐water potential of irrigated plants was −12 bars before tasseling and − 18 bars after tasseling. The results demonstrate the need to evaluate the influence of environmental stresses and soil water deficits on leaf‐water potential and associated physiological processes.