Performance of rice hybrids determined by different planting arrangements. Braga Schuch, Lilian V.
El experimento del arroz yahoo dating de Tunes, and Jucilayne F. The practices techniques used in irrigated rice to improve performance include optimal plant density and the best arrangement of the plants in an area.
This study aims to evaluate the performance and plasticity in the yield and grain quality three rice hybrids using different row spacing. Three different sowing arrangements were evaluated, i. The experimental design used was randomized blocks with subdivided plots replicated three times considering each location as a replication.
Yield and grain quality were evaluated. The grain yield and grain quality components of the rice hybrids were not affected El experimento del arroz yahoo dating the planting arrangements. The performance of the hybrids demonstrates their plasticity to compensate for lower densities resulting from different distances between planting rows.
Therefore, with respect to seeding rates and row spacing for these hybrids, the amount of seed sown per can be reduced compared with current recommendations. This will result in a cost reduction that can make this technology more attractive and ensure it is widely used in commercial rice
El experimento del arroz yahoo dating. Irrigated rice, Oryza sativa L. Se evaluaron tres arreglos diferentes de siembra, incluyendo la distancia entre surcos que fue de 17, 34 y 17 cm, intercaladas con 34 cm, que corresponden, a las densidades de 40, 20 y 32 kg ha -1respectivamente.
Arroz de riego, Oryza sativa L. Rice Oryza sativa L. In Brazil, rice is cultivated over an area of 2.
El experimento del arroz yahoo dating Rio Grande do Sul is the largest rice producer in the country, with In certain situations, the genetic yield potential of rice cultivars and management practices can result in yields that exceed 10 t ha Reducing seeding
El experimento del arroz yahoo dating is a management practice that provides better exploitation and utilization of available resources, such as water, light and nutrients.
Lower seeding rates allow better interception of sunlight, greater tillering potential, and a crop that can express its full development potential.
Low crop densities may provide better crop development and increased productivity due
El experimento del arroz yahoo dating greater photosynthetic area. This El experimento del arroz yahoo dating makes crops more resistant to environmental stresses, pests and disease attacks. Furthermore, stems tend to be thicker and stronger, which increases resistance to lodging Luzzardi et al. Research performed by Schuch showed that crop productivity is a function of the ability of a crop to transform incident solar energy into organic products through the process of photosynthesis and their subsequent allocation to different plant parts.
This author stated that the amount of solar radiation intercepted by a crop is related to leaf area. Leaf area is dependent on plant density; therefore, plants should be arranged equidistantly from each other in the field. The recommended seeding rate for irrigated rice in a conventional system El experimento del arroz yahoo dating according to the region and cropping system.
The typical range is between 80 and kg of seeds per hectare and depends mainly on the cultivar, planting date and soil type. The commercial rice hybrids in Brazil have the potential to reduce the planting density to approximately 40 to 50 kg ha -1 EPAGRI, The recommended seeding rate of 50 kg ha -1 does not negatively influence the performance of the hybrids, and some studies suggest that it is possible to further reduce this rate Luzzardi et al.
Compared with the average yields and different crop densities that have been observed in conventional rice systems, low plant densities El experimento del arroz yahoo dating hybrids are being positively exploited to maintain an economic and productive balance. Some research studies that have been conducted on rice hybrids and varieties have indicated the possibility of decreasing plant density using different distances between rows Souza et al.
This an important way to reduce the amount of seed sown per area compared with the current recommendations. In addition, the use of this technology can reduce production costs, making this method more attractive and consequently, the most widely used in commercial irrigated rice crops.
Therefore, this study aims to evaluate the performance and plasticity in the yield and grain quality of three rice hybrids using different row spacing. Three hybrids were used: Three sowing arrangements that corresponded to cm, cm and cm skip-row i. The El experimento del arroz yahoo dating of these plants did not change the density of seeds within a row, which was equivalent to a sowing density of 40 kg ha The experiments were conducted at three different sites.
The same fertilizer, doses and timing of nitrogen application, and chemical treatment for controlling pests and diseases
El experimento del arroz yahoo dating used in the management of the experiments at all locations. After tillage, prior to the desiccation of the vegetation before rice was planted, glyphosate was applied 1, g ha At the S3 stage needle pointa second application of glyphosate 1, g ha -1 was performed, and irrigation occurred soon after herbicide application.
Fertilization was performed based on the interpretation of the soil analysis; kg ha -1 of granular fertilizer was applied at planting using a furrow seeder. In addition, two applications of nitrogen were conducted; the first application occurred 15 days after emergence at the V3 stage three-leaf rice and the second after the differentiation of floral primordia. The productivity, grain yield and commercial quality of the grains were analyzed.
Sampling was conducted by measuring grain moisture in the field. The evaluations were performed every 2 days at the same time, and the grains used were collected from the edges of the plots using a portable device Platinum brand that measured grain moisture content H model. A 3-kg grain sample was collected from each plot. From this
El experimento del arroz yahoo dating, a g subsample was used for the determination of impurities and a g subsample was used for the determination of moisture using a universal tester Gehara brand.
One kilogram of each sample was collected and stored in airtight plastic containers. A sample of g of paddy rice was collected and processed for one minute using a rice mill model MT, Suzuki to determine the percentage of whole grains, broken grains and total milling yield. After polishing, the grains were weighed and this value was regarded as the total milling yield, which was expressed as a percentage.
The percentage of total milling grains was calculated by adding the percentage of whole grains and broken grains.
Subsequently, polished grains were placed in a number two "trieur'' and grain separation was processed for thirty seconds. The grains that remained in the ''trieur" were weighed to calculate the yield of whole and broken grains, both expressed as a percentage. A rice analyzer model was used to determine the percentage of chalk grains, white belly, belly, chalk area of grains, broken grains and whole grains free defects.
This machine is able to analyze rice samples and provide detailed information for each grain individually. A sample of g El experimento del arroz yahoo dating peeled El experimento del arroz yahoo dating was used; the sample was separated into different categories based on the proportion of grain chalkiness.
The chalk area of the grains was calculated as the average ratio of the chalkiness area considering the surface of all grains in the sample g. Whole grains free from defects were the grains that were completely translucent with no chalk. The experiment was a randomized block with a split plot design with three replications.
There was a border around the entire experiment, and this was implemented at all three locations. Each subplot was composed of a different numbers of rows depending on the sowing arrangement used.
Specifically, 26, 14 and 18 lines that were 10 m long corresponded to theand paired and cm row spacings, respectively. Grains were harvested from the 17, 8 and 10 central lines of the plots with the and row spacings and and cm
El experimento del arroz yahoo dating row spacings, respectively.
The 50 cm at the ends of each line were not El experimento del arroz yahoo dating for harvesting, resulting in useful plot areas of There were no significant interactions between the cultivars and planting arrangements for any experimental variable. This indicated that the different rice hybrids showed similar performance when the plant distribution was changed in the field.
The other commercial grain quality parameters shown in Table 1 indicate that the percentage
El experimento del arroz yahoo dating whole grains for the Arize Prime hybrid was higher by four percentage points compared with the other hybrids. These differences between hybrids are derived from intrinsic genetic characteristics because the Arize Prime hybrid has a higher percentage of whole grains and a smaller percentage of broken grains compared with the other hybrids this has been observed under various conditions.
The total milling yield, i. However, Arize QM was not significantly different from the other hybrids with respect to the percentage of total yield. The planting arrangements did not affect grain yield Table 1. In addition, the planting arrangements did not affect the percentage of whole grains, broken grains or total milling yield despite the variation in spacing and seeding rate. Variations in spacing and the seeding rate possibly affect the uniformity of maturation because a reduction in the seeding rate results in a gradual increase in the number of tillers per plant that exhibit different phenological development.
Similar to the results reported here, Crusciol et al. These results disagree with the experiment conducted by Arf et al. These authors found significant effects resulting from an increase in the seeding rate, which increased the percentage of whole grains and reduced the El experimento del arroz yahoo dating of broken grains.
These contradictory El experimento del arroz yahoo dating indicate that the effects of these factors may be dependent on the crop cultivars and environments in question.
The data presented in Table 2 show that sowing arrangements did not affect the percentage of chalk, El experimento del arroz yahoo dating belly, belly, chalk area of grain or whole grains free from defects.
The results show that the productivity and commercial quality components El experimento del arroz yahoo dating the hybrid rice cultivars were not affected by sowing arrangements that involve changes El experimento del arroz yahoo dating plant densities or the arrangement of the planting rows. The whole grain yield was not affected by variation in seeding rate.
These results contradict the hypothesis that lower plant populations can reduce the grain quality of rice. Lower plant populations result in abundant tillering and decrease the uniformity of grain ripening among tillers of different orders. Similarly, Canellas et al. The use of sowing arrangements involving density and line spacing did not affect the yield or grain quality of the rice hybrids, which shows the plasticity of these hybrids to compensate for lower densities and distributions of planting rows.
This suggests the possibility of changing the recommended seeding rates and row spacing for these hybrids. This will allow for a reduction in the quantity of seed sown compared with current recommendations, which will reduce production costs, making this technology more attractive and therefore ensure it is widely used in commercial rice fields.
This study provides preliminary information on the possibility of optimizing genetic resources and enabling the use of sowing arrangements that provide high yield potential and acceptable levels of commercial grain quality. High El experimento del arroz yahoo dating and quality can be achieved by reducing the seeding rate per area as well as by using different arrangements of planting rows while maintaining the density within the planting rows. According to Schuch et al.
The yield of whole grains, which indicates the amount of whole grains, obtained after industrial processing is one of the most important parameters in determining the commercial value of rice Oliveira et al, and this parameter varied between the different localities. The percentage of total milling yield was similar among all localities. The percentage of chalk and white belly did not differ between the different localities.
Aspects of grain quality for each growing site. Therefore, it appears that the hybrid rice showed different behavior for grain yield and certain parameters of grain quality depending on the growing site.
The municipality of Uruguaiana had rice with the lowest percentage of belly grains and a relatively high percentage of whole grains and grain chalk area. This variability can be attributed to climate differences between the three localities, particularly temperature and relative humidity during grain filling and the pre-grain harvesting period.
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Simulação do crescimento e produtividade de arroz no Rio Grande do Sul pelo modelo SimulArroz.
Appearance of rice hybrids determined away different planting arrangements. Braga Schuch, Lilian V. Madruga de Tunes, and Jucilayne F. The practices and techniques used in irrigated rice to improve performance entail optimal plant density and the best arrangement of the plants in an area.
This work aims to evaluate the gig and plasticity in the profit and grain quality of three rice hybrids using different falling-out spacing. Three different sowing arrangements were evaluated, i. The speculative design used was randomized blocks with subdivided plots replicated three times considering each location as a replication.
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Negligible access to EBSCO's databases is permitted to patrons of subscribing institutions accessing from remote locations personal, non-commercial use. Degree, remote access to EBSCO's databases from non-subscribing institutions is not allowed if the purpose of the use is for commercial gain through cost reduction or avoidance for a non-subscribing institution. The SimulArroz is a process-based display for simulating growth, advancement and yield of rice. The objective of that study was to figure the performance of the SimulArroz model in simulating biomass in the Cardinal Depression of Rio Grande do Sul and smidgin yield in different regions that grow rice in the Rio Grande do Sul State.
Data from the literature were cast-off to test the predictive ability of the style in simulating grain give over. English Copyright of Revista Brasileira de Engenharia Agricola e Ambiental - Agriambi is the property of Revista Brasileira de Engenharia Agricola e Ambiental and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission.
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This guy is a question mark (??)Main · Videos; Elesh parujanwala dating divas experimento del arroz yahoo dating · single artist dating · frutales enanos online dating · suki waterhouse. Rendimiento de plantas híbridas de arroz en función de las diferentes modalidades de plantación Corresponding author: [email protected] El experimento de campo se llevó a cabo en la temporada de siembra de arroz entre (SOSBAI, ) and depends mainly on the cultivar, planting date and soil type..
Rice seed physiological quality and seeding rate upon grain yield and industrial quality. Fertilization was performed based on the interpretation of the soil analysis; kg ha -1 of granular fertilizer was applied at planting using a furrow seeder. Three hybrids were used: Three sowing arrangements that corresponded to cm, cm and cm skip-row i. At the S3 stage needle point , a second application of glyphosate 1, g ha -1 was performed, and irrigation occurred soon after herbicide application.
Subsequently, polished grains were placed in a number two "trieur'' and grain separation was processed for thirty seconds. These authors found significant effects resulting from an increase in the seeding rate, which increased the percentage of whole grains and reduced the percentage of broken grains.
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