|
|
|
| Registros recuperados: 48 | |
|
|
| Souza-Schlick, Genivaldo David de; Soratto, Rogério Peres; Zanotto, Maurício Dutra. |
| Plant population and arrangement should be properly designed to maximize the seed yield of short-height genotypes of castor (Ricinus communis L.) in each cropping season. Experiments were performed in the in the fall-winter cropping season of 2008 and 2009 in Botucatu, State of São Paulo, Brazil, to evaluate the effects of row spacing (0.45, 0.60, 0.75, and 0.90 m) and plant population (25,000, 40,000, 55,000, and 70,000 plants ha-1) on agronomical traits, yield components, seed yield, and oil yield of the genotype FCA-PB. A high plant density caused a reduction in plant survival and increased the first raceme insertion height, particularly in the year with the higher rainfall. The basal stem diameter, number of racemes per plant, and seeds per raceme were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ricinus communis spatial plant distribution plant density grain yield oil content Manejo e tratos culturais Ciências Agrárias; Agronomia Ricinus communis; Spatial plant distribution; Plant density; Grain yield; Oil content Fitotecnia. |
| Ano: 2014 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/17455 |
| |
|
|
| Azadbakht, Mohsen; Hosaini, Rahim; Ghorbani, Mohammad Hosain; aldarwish, zuhair. |
| The Azivash plant was cultivated at densities of 20, 27, 40 and 80 m-2 and three irrigation intervals of 6, 12 and 18 days with three replications using a randomized complete block design. Cultivation was considered in a row and row spacing of 25 cm was used. Plant spacing on the row was respectively 5, 10, 15 and 20 cm. At harvesting time when the plant height was about 50 cm, the components of plant height (cm), number of leaves per plant (number), new plant amount of yield (kg ha-1), number of branches per plant (number), leaf area index (leaf area), fresh weight of leaves and stems (kg ha-1), dry weight of leaves and stems, and total dry matter per hectare (kg ha-1) were determined. The results showed that both components of the irrigation and plant... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Azivash; Yield; Plant growth; Plant density; Irrigation regime. |
| Ano: 2015 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3454 |
| |
|
|
| Azadbakht, Mohsen; Ghajarjazi, Ehsan; Barzanooni, Esmat; Pourbagher, Roghayeh; Tajari, Neda. |
| Three irrigation regimes, 6, 12 and 18 days, the distance between seeds in four levels: 5,10, 15 and 20 cm (density, respectively, 80, 40, 27 and 20 plants per m2) and a row spacing of 25 cm was considered that was tested in a randomized complete block design with three replications. The results showed that the effect of irrigation on cutting force, shear strength and energy per unit area was meaningful at 5% level and the effect of plant density on cutting force was meaningful at 1% level, but was not meaningful on shear strength. Also showed interaction between irrigation and plant density on cutting force, shear strength and energy per unit area is not meaningful. It was observed that the effect of irrigation and plant density on the length, diameter... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Azivash; Plant density; Shear strength; Irrigation regime. |
| Ano: 2015 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3340 |
| |
|
|
| Cid,M. Silvia; Brizuela,Miguel A; Mendiburu,Analía; Gariglio,Juan M. |
| This study evaluates the balance of species 2 mo after sowing, its effects on seasonal and annual dry matter accumulation of Plantago lanceolata L. Ceres Tonic sown in pure stands, in binary mixtures with three grasses, and different initial growth rates: annual ryegrass (Lolium multiflorum Lam.), tall fescue (Festuca arundinacea Schreb.), and orchard grass (Dactylis glomerata L.). Plantain monocultures were sown at three densities (4, 8, and 12 kg seed ha-1), while halved densities were used in the mixtures. Each grass was sown at the density that is typical for the region (annual ryegrass = 30, tall fescue = 15, and orchard grass = 6 kg seed ha-1). The trial was carried out in Balcarce (37º45 S, 58º18 W; 130 m.a.s.l.), Argentina in 1.4 × 5 m plots... |
| Tipo: Journal article |
Palavras-chave: Plant density; Seasonal forage. |
| Ano: 2011 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392011000300004 |
| |
|
|
| del Pozo,Alejandro; Ovalle,Carlos. |
| The production and sustainability of non-irrigated pastures in the Mediterranean climate region of central Chile is currently limited by the low diversity of valuable species and cultivars of annual forage legumes, able to persist in zones with highly variable annual rainfall, and low fertility or poorly drained soils. In this work, DM production, seed yield, hardseededness and pasture persistence were evaluated for cultivars of yellow serradella (Ornithopus compressus L.) and biserrula (Biserrula pelecinus L.), in field experiments conducted in the subhumid portion of the Mediterranean climate region of Chile. Burr medic (Medicago polymorpha L.) and sub clover (Trifolium subterraneum L.) were used as a reference plants. A remarkable DM production and seed... |
| Tipo: Journal article |
Palavras-chave: Annual legumes; Hard-seed; Espinal; Plant density; Seed yield. |
| Ano: 2009 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392009000300006 |
| |
|
|
| Ban,Dean; Goreta Ban,Smiljana; Oplanic,Milan; Horvat,Josipa; Novak,Bruno; Zanic,Katja; Znidarcic,Dragan. |
| Worldwide, a significant increase in watermelon (Citrullus lanatus [Thunb.] Matsum. & Nakai) growing areas has been registered in the last few years. In-row plant spacing has a significant effect on the growth and yield of watermelon, and can enhance competition for water and nutrients. The aim of this study was to investigate the effects of in-row plant spacing (1.0, 1.5, 2.0 and 2.5 m) and arbuscular mycorrhiza (AM) fungi Glomus mosseae inoculations on watermelon growth and yield under field conditions during 2003, 2004, and 2005 year. In 2003, the main vine length, number of leaves, and number of lateral branches were increased quadratically as the in-row plant spacing increased from 1.0 to 2.5. With an increase in the in-row plant spacing the... |
| Tipo: Journal article |
Palavras-chave: Arbuscular mycorrhiza; Fruit; Plant density; Vegetative growth. |
| Ano: 2011 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392011000400001 |
| |
|
|
| Braz,Thiago Gomes dos Santos; Martuscello,Janaina Azevedo; Santos,Manoel Eduardo Rozalino; Pereira,Vinícius Valim. |
| ABSTRACT: The objective of this study was to evaluate, through partial correlation analysis, the degree of association between herbage accumulation and morphogenetic traits of ‘Tanzania’ grass (Panicum maximum Jacq.) defoliated with 95% of light interception and fertilized with nitrogen, under different planting densities. The experiment was carried out in a randomized complete design with 12 treatments and two replicates, in a 4 × 3 factorial arrangement consisting of four nitrogen rates (0, 80, 160, and 320kg ha-1 Yr-1) and three planting densities (9, 25, and 49 plants m-2). Harvests were performed at 25cm above the soil, when the plots intercepted 95% of the incident light. The simple correlation coefficients between herbage accumulation and leaf and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Nitrogen; Pasture management; Pearson correlation; Plant density. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000900402 |
| |
|
|
| Souza,Jacimar Luis de; Guarçoni,Rogério Carvalho; Favarato,Luiz Fernando; Angeletti,Maria da Penha; Bahiense,Douglas Vianna; Ribeiro,Camila de Souza. |
| ABSTRACT: The method of producing organic mini-cabbages from regrowth of mother-plant was initiated at the Unidade de Referência em Agroecologia of the Incaper in 2013, possibly acting as an efficient alternative for the obtainment of cabbages with a more adequate average weight for the desires of the modern consumer. The aim of this study was to define sprout density in the mother plant, which allows better productivity and commercial standards for organic mini-cabbages. The experiment was developed during the period from September to November 2015, using the F1 Shinsei hybrid, in a design with randomized blocks, with five replications. Sprout density was determined following thinning, constituting the following treatments: two, three, four, five and six... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brassica oleracea; Var. capitata; Organic cultivation; Mini-vegetables; Plant density. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000900201 |
| |
|
| |
|
|
| Canales Islas, Enrique Inoscencio. |
| En los programas de mejoramiento genético de maíz (Zea mays L.) y de generación de híbridos de la Facultad de Estudios Superiores Cuautitlán (FESC-UNAM) y del Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias (INIFAP-CEVAMEX), se emplean la esterilidad masculina y la incorporación de este carácter, en las líneas élites como una alternativa para facilitar la producción de semillas, favorecer el mantenimiento de la calidad genética, y disminuir costos de producción de semilla, al liberarse comercialmente para su uso extensivo y abastecimiento de semilla de nuevos híbridos. En estos programas, desde 1992, se trabaja con androesterilidad, contándose con híbridos trilíneales, para productores de maíz de los Valles Altos de México (2200 a... |
|
Palavras-chave: Zea mays L.; Androesterilidad; Densidad de población; Producción de semillas; Híbridos de maíz; Proporciones de semilla; Parámetros de estabilidad; AMMI; Rendimiento; Male sterility; Plant density; Seed production; Maize hybrids; Seed ratios; Parameters of stability; Yield; Genética; Maestría. |
| Ano: 2014 |
URL: http://hdl.handle.net/10521/2312 |
| |
|
|
| Álvarez Vázquez, Perpetuo. |
| En México, la alfalfa es la leguminosa más utilizada en la alimentación del ganado lechero, debido a su alto rendimiento y valor nutritivo. El objetivo del presente estudio fue evaluar las variables que determinan el crecimiento y rendimiento de diez variedades de alfalfa a intervalos de corte definidos estacionalmente. El estudio se realizó de septiembre de 2011 a septiembre de 2012 en el Colegio de Postgraduados, Campus Montecillo, Texcoco, México. Las variedades de alfalfa estudiadas fueron: Vía Láctea, Chipilo, Atlixco, Oaxaca, San Miguelito, Cuf-101, Milenia, Aragón, Valenciana y Júpiter, distribuidas aleatoriamente en un diseño experimental completamente al azar con cuatro repeticiones. El mayor rendimiento (14,510 kg MS ha-1), tasa de crecimiento... |
|
Palavras-chave: Medicago sativa L.; Rendimiento; Radiación interceptada; Indice de área foliar; Densidad de plantas; Herbage yield; Intercepted radiation; Leaf area index; Plant density; Ganadería; Maestría. |
| Ano: 2013 |
URL: http://hdl.handle.net/10521/2031 |
| |
|
|
| Gava,Ricardo; Anselmo,Jefferson L.; Neale,Christopher M. U.; Frizzone,José A.; Leal,Aguinaldo J. F.. |
| ABSTRACT Planting density can influence the competitiveness among plants mainly by water, nutrients and solar radiation, directly affecting yield. The purpose of this study was to evaluate the productivity of different soybean cultivars at different planting populations under irrigated and rainfed conditions. The experiment was conducted during the 2014/15 growing season, under center pivot irrigation in Chapadão do Sul – MS, Brazil. The experimental design was randomized complete block design with split-plot, as follows: Irrigated and Rainfed (plots) x Six cultivars (subplots) x Three Plant Populations (sub-subplots) with 4 replications. The irrigation management was realized by Penman-Monteith-FAO method. The cultivars used were: NA 5909 RR, DM 5958... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Plant density; Irrigated Soybean; Deficit irrigation; Soybean Yield. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162017000300441 |
| |
|
| |
|
|
| Marodin,Josué C; Resende,Francisco V; Resende,Juliano TV de; Gabriel,André; Zeist,André R; Constantino,Leonel V; Sanzovo,Alisson WS. |
| ABSTRACT Studies on the interaction between garlic plant density and virus-free seed size are scarce in Brazil. Thus, this study was installed to evaluate the effect of plant spacing and seed size on garlic traits and yield for infected and virus-free bulbs. Treatments were arranged in a randomized block design and 2x5x3 factorial combination [infected and virus-free bulbs, five plant spacings (210, 260, 300, 360, and 390 cm2 per plant), and three bulbous seed sizes (sieve one, two, and three)]. The highest bulb yield was observed for virus-free seeds at a plant spacing of 390 cm2 plant-1, while the highest commercial yield was verified for 210 cm2 plant-1 spacing. The combination of virus-free seeds, larger bulbs, and 332 cm2 plant-1 spacing promoted the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Allium sativum; Degeneration; Plant density; Vegetative propagation. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000300295 |
| |
|
| |
|
| |
|
| |
| Registros recuperados: 48 | |
|
|
|
