Soil moisture tension and phosphate fertilization on yield components of A-7573 sweet corn (Zea mays L.) hybrid, in Campeche, Mexico

Rivera-Hernández, Benigno; Carrillo-Ávila, Eugenio; Obrador-Olán, José Jesús; Juárez-López, José Francisco; Aceves-Navarro, Lorenzo Armando; García-López, Eustolia

doi:10.1016/j.agwat.2009.03.020

Cited by 16 publications

(8 citation statements)

References 25 publications

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“…From the beginning until the eighth sampling, stems were thicker in DK7500 (2.6 cm) and A7573 (2.56 cm). These figures are similar to those recorded by Rivera-Hernández et al (2009), who reported a Std of 2.7 cm in A7573 maize.…”

Section: Results and Discussion Growth Characterizationsupporting

confidence: 91%

“…The disparities between both studies can be explained by time of the year in which each study took place: spring-summer (Sierra-Macías) and autumn-winter (this study). In Campeche, Mexico, A7573 reached a Ph of 183 to 221.5 cm, which Rivera-Hernández et al (2009) attributed to changes in the soil water regime. This information does not contradict prior findings.…”

Section: Results and Discussion Growth Characterizationmentioning

confidence: 99%

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Corn kernel and corn fodder yield in four maize varieties in the humid tropics of Mexico

Sánchez-Hernández,

Morales-Terán,

Ramírez-Ordoñes

et al. 2024

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In southeastern Mexico, maize is planted for its corn kernel. Additionally, its bracts are used for tamales and handicrafts, its cobs are used as vegetables for human consumption, and its fodder is used to feed cattle. Objective: To evaluate the growth and yield of maize planted for corn kernel and fodder production in Loma Bonita, Oaxaca, Mexico. Design/Methodology/Approach: The DK7500, H-520, A7573, and VS-536 maize genotypes were used as treatments for the production of corn kernel and fodder, using a randomized blocks design with three replications. Several variables were measured: plant height, stem diameter, chlorophyll, leaf length, leaf width, and leaf area. Finally, the corn kernel and fodder yields were estimated (kg ha-1) at the time of harvest. Results: The genotypes under study showed significant differences (P£0.05) in plant height, stem diameter, leaf length, leaf width, and leaf area. The A7573 genotype recorded the highest corn kernel yield (20,409 kg ha-1), while fodder yield was statistically the same in the four genotypes. Study Limitations/Implications: An analysis of different environments in a multi-year period would help to verify the information obtained. Findings/Conclusions: A7573 maize had the highest corn kernel yield (20,409 kg ha-1): 15.5% higher than that of H-520 and 12.5% higher than VS-536 (control). Fodder yield was statistically similar between genotypes, ranging from 40,529 kg ha-1 (H-520) to 42,104 kg ha-1 (VS-536).

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Section: Results and Discussion Growth Characterizationsupporting

confidence: 91%

Section: Results and Discussion Growth Characterizationmentioning

confidence: 99%

Corn kernel and corn fodder yield in four maize varieties in the humid tropics of Mexico

Sánchez-Hernández,

Morales-Terán,

Ramírez-Ordoñes

et al. 2024

View full text Add to dashboard Cite

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“…also observed a lower number of grains in rainfed ears. After all, low water availability is correlated with reduced ear sizes and poor grain formation per ear, resulting in low crop productivity (Hernández et al, 2009;Comas et al, 2019).…”

Section: Resultsmentioning

confidence: 99%

Effect of Water Supply and Sowing Dates on Corn Yield of Hybrids Grown During Offseason

et al. 2023

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This study aimed to evaluate the effect of water supply and sowing time on yield and yield components of two corn hybrids grown during offseason in the region of Dourados-MS, Brazil. The experimental design was randomized blocks in sub-divided plots, with four replications. In the main plot, two sowing dates were defined (2013 crop year: February 27 and March 27; and 2014 crop year: March 18 and April 5). In subplots, irrigation management systems were defined (irrigated and rainfed). Hybrids AS 1555 and AS 1590 were grown in the sub-plots. The parameters evaluated were plant height, ear insertion height, stem diameter, ear length and diameter, 100-grain weight, and grain yield. Regardless of irrigation and hybrid used, sowing time significantly affected corn yield, which responded to climate changes throughout crop cycle. Water supply increased corn yield, with the highest value being of 9338 kg ha -1 (156 bags ha -1 ) and obtained when irrigated AS 1555 hybrid was sown on February 27, 2013.

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“…The irrigation amount or soil moisture measurements alone are not sufficient to describe the severity of the stress at plant level, as plant available water content varies among soil types. Several authors have shown that soil matrix potential rather than soil moisture content affects plant physiological responses to soil moisture deficit, for example in oil seed rape [22], wheat [23], maize [24], and potato [14,15]. Mould and Rutherfoord (1980, [25]) observed negative effects on potato quality and yield beyond a threshold in the soil matrix potential of 700 hPa.…”

Section: Introductionmentioning

confidence: 99%

Phenology-Adjusted Stress Severity Index to Assess Genotypic Responses to Terminal Drought in Field Grown Potato

et al. 2020

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Potato is a drought susceptible, often rain-fed crop suffering strongly from even short periods of soil water deficit. With global environmental conditions changing, potato clones resistant to variable water supply are needed and identifying them is a major task. Many indices assessing potato tolerance to water deficit have been proposed, albeit none of them takes into account the severity of the stress or the sensitivity of the developmental stage during which the stress occurs. As a result, data obtained on genotypes in one location or season are normally not useful in another location or in a different season. We have developed an index evaluating yield response of potato to water deficit based on the soil tension the genotype was subjected to for the duration of the stress modified by the development stage of the genotype. The sum of the daily values was combined in a stress severity index (SSI). In total thirteen genotypes differing in duration and sensitivity to drought were subjected to four levels of deficit irrigation on two soil types at different development stages over two years. Early drought (early tuber filling) reduced yields up to 95% whereas late drought (late tuber bulking) reduced yields significantly less. SSI depended on the genotypic phenological development and on the soil tension values and ranges between 25 and 3500. The index differentiated genotypic responses well across treatments and soil types, even with these relatively advanced development stages, up to a value of 1000. Beyond 1000, yields were generally reduced by more than 60% and a differentiation between genotypes was not possible anymore. SSI constitutes a method that renders site, location, year, season, and soil type effects comparable for responses of potato clones to soil water deficit. Combining this measure of stress severity with other proposed indices may improve upon their current weaknesses in finding or identifying the underlying traits of drought tolerance in potato.

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Soil moisture tension and phosphate fertilization on yield components of A-7573 sweet corn (Zea mays L.) hybrid, in Campeche, Mexico

Cited by 16 publications

References 25 publications

Corn kernel and corn fodder yield in four maize varieties in the humid tropics of Mexico

Corn kernel and corn fodder yield in four maize varieties in the humid tropics of Mexico

Effect of Water Supply and Sowing Dates on Corn Yield of Hybrids Grown During Offseason

Phenology-Adjusted Stress Severity Index to Assess Genotypic Responses to Terminal Drought in Field Grown Potato

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