Arranjo de plantas e número de sementes por cova na produção agroeconômica de ervilha

Torales, Elissandra Pacito; Zárate, Néstor Antônio Heredia; Vieira, Maria do Carmo; Gutierrez, Robson Santos; Gassi, Rosimeire Pereira; Tabaldi, Luciane Almeri

doi:10.5433/1679-0359.2014v35n6p2955

Cited by 3 publications

(4 citation statements)

References 3 publications

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“…Temperature had a significant effect on germination as the quality of lots reduced, with better performance of seeds under conditions of mild temperatures (15 and 20 °C). This result is probably because pea is originated in the Middle East, so that the culture develops and produces well in regions with temperature between 4 and 30 °C and temperature of 18 °C is considered ideal (VIEIRA et al, 2007;TORALES et al, 2014).…”

Section: Resultsmentioning

confidence: 99%

Adequacy of methodology for conducting germination test in forage pea seeds

Machado¹,

Martins²,

Silva³

et al. 2019

Biosci. J.

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Seeds presents variable germination performance at different temperatures and substrates, which are basic components of germination test. Within this context, this work aimed to adapt the methodology for the seeds germination's test of P. sativum subsp. arvense. The experiment required four portions of seeds, five temperature degrees (15, 20, 25, 20-30 and 15-25 °C), and two substrata (roll of paper and in sand). Seeds evaluation considered the following: moisture degree and germination test. The effect of seed portion, substrata and temperature in germination was assessed on a daily basis. It was calculated the rate of germination, of anormal plants, of dormant and dead seeds, and of speed of germination index; initial, final and average times, and synchrony. The experimental design consisted of random blocks with four replications, while conjoint analysis was the statistical procedure adopted. The germination test for forage pea seeds should be conducted at the constant temperature 20 °C in roll of paper substrate with the first count and final count on the 4th and 7th day, respectively.

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Section: Resultsmentioning

confidence: 99%

Adequacy of methodology for conducting germination test in forage pea seeds

Machado¹,

Martins²,

Silva³

et al. 2019

Biosci. J.

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“…Outros trabalhos com ervilha revelam resultados semelhantes, com aumento da produtividade quanto maior a densidade de plantio (Kahn & Nelson, 1991;Islam et al, 2002;Manetti, 2010;Torales et al, 2011), mostrando que a espécie tolera o adensamento, pelo menos nas densidades estudadas.…”

Section: Resultsunclassified

“…Existem poucos trabalhos em que se estudou a densidade de plantio da ervilha, sendo a maioria com cultivares para produção de grãos (Islam et al, 2002;Torales et al, 2011;Zárate et al, 2012). No cultivo de ervilha-de-vagem comestível, o espaçamento utilizado no Brasil varia de 0,8 a 1,0 m entre linhas e 0,4 a 0,5 m entre plantas (Filgueira, 2008).…”

Section: Abstract Plant Density In the Production Of Edible Pod Peaunclassified

Densidade de plantio na produção de ervilha-de-vagem

et al. 2016

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RESUMOA otimização do espaço na produção de hortaliças é de suma importância para o agricultor; algumas vezes esse é o limiar do lucro. Novos arranjos de plantas com disposições diferentes buscam maximizar a produção. Objetivou-se com este trabalho avaliar a produtividade de ervilha de vagens comestíveis em diferentes densidades de plantio, variando o espaçamento entre covas e o número de plantas por cova. O delineamento experimental utilizado foi de blocos ao acaso, com oito tratamentos no esquema fatorial 4 x 2 (espaçamentos entre covas de 0,2; 0,3; 0,4 e 0,5 m com 1 ou 2 plantas por cova), representando densidades de 20.000 a 100.000 plantas/ha para o espaçamento de 1,0 m entre linhas, com seis repetições. Foram avaliadas a produtividade total e comercial, a produção de vagens comerciais por planta e o número de vagens comerciais. Os dados foram submetidos ao teste F, sendo as médias referentes ao número de plantas por cova comparadas pelo teste de Tukey e as referentes aos espaçamentos pela análise de regressão. Foi obtida maior produtividade de vagens comerciais (15,53 t/ha com 2 plantas por cova) e menor produção por planta (150 g com 2 plantas por cova), quanto menor o espaçamento (0,2 m). Caso o produtor resolva plantar com um espaçamento maior, aconselha-se o uso de duas plantas por cova. Palavras-chave:Pisum sativum, produtividade, espaçamento. ABSTRACT Plant density in the production of edible pod peaThe optimization of space in vegetable production is very important to the farmer; sometimes this is the threshold of profit. New arrangements of plants with different provisions seek to maximize production. The objective of this research was to evaluate the productivity of edible pea pods in different planting densities, varying the spacing between holes and the number of plants per hole. The experimental design was randomized blocks, with eight treatments in a factorial scheme 4 x 2 (spacing among holes of 0.2, 0.3, 0.4 and 0.5 m with 1 or 2 plants per hole), representing densities of 20,000 to 100,000 plants/ha for spacing of 1.0 m between rows, with six replications. We evaluated the total production/ha, the marketable production/ha and per plant, and the number of marketable pods/ha and per plant. The data were submitted to the F test, and the means concerning number of plants per hole were compared by Tukey's test and the spacing between holes by regression analysis. Higher productivity was obtained (15.53 t/ha with 2 plants per hole) and lower production of pods per plant (150 g, with 2 plants per hole), the smaller the spacing (0.2 m). However, if the farmer decides to plant on greater spacing, the density of two plants per hole is recommended.

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“…The soybean has high phenotypic plasticity, that is, it has the ability to modify its morphological components to suit different conditions of the production environment, which facilitates modifying the arrangement of plants in the field (Pires et al, 2000). So, in order to obtain better yields, it is necessary to study factors as the plant arrangement, which can be manipulated through changes in sowing density, spacing between lines and plants distribution in the lines (Torales et al, 2014). According to Balena et al (2016) changes related to plant population can increase yield gains.…”

Section: Introductionmentioning

confidence: 99%

Hole spacing in soybean hill drop sowing1

et al. 2021

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The aim of this study was to evaluate the development, yield and its components of soybean sown in hill drop method with variation in hole spacing, compared to the conventional sowing method in lines. The experiment was conducted in a randomized block design, with six treatments and four replications, using the variety M7739 RR IPRO with four plans per hole. The treatments consisted of population variation from 50 to 150% of the recommended one, obtained by the holes spacing alteration and a control sowed in lines with the recommended population. The control was compared to the other treatments using the Dunnett test and the hole spacing effect was evaluated by regression. The cultivar 7739 RR IPRO responds to hill drop sowing, obtaining even in lower populations, yields similar to the conventional sowing in lines. The highest yields in the hill drop sowing method are obtained in the higher populations, with a linear decrease in yield with an increase in hole spacing. Increasing hole spacing increases the number of pods and branches and reduces leaf cover, light interceptcion, plant height and first pod height.

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Arranjo de plantas e número de sementes por cova na produção agroeconômica de ervilha

Cited by 3 publications

References 3 publications

Adequacy of methodology for conducting germination test in forage pea seeds

Adequacy of methodology for conducting germination test in forage pea seeds

Densidade de plantio na produção de ervilha-de-vagem

Hole spacing in soybean hill drop sowing1

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