Estimativa do índice de área foliar e da produtividade de pepino em meio protegido - cultivos de inverno e de verão

Galvani, Emerson; Escobedo, João Francisco; Cunha, Antônio Ribeiro da; Klosowski, Élcio Silvério

doi:10.1590/s1415-43662000000100002

Cited by 8 publications

(6 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This result was also noted in all plants grown in the mountains, suggesting that under these conditions, plants produce larger leaves, which would increase their photosynthetic potential. In addition, increases in LAI improve the rate of photosynthetic capacity of plants (Galvani et al, 2000), promoting growth and development and resulting in productivity gains.…”

Section: Discussionmentioning

confidence: 99%

Yacon production at different planting seasons and growing environments

et al. 2019

View full text Add to dashboard Cite

Yacon is a functional food with great potential for horticultural exploitation and its cultivation demands the generation of agronomic information. To address these needs, this study was performed to evaluate the production of yacon planted in different planting seasons under two growing conditions in Brazil. The experiments were conducted in two different locations, one in the mountain region (tropical microclimate at altitude with milder temperatures) and the other in the lowland region (warm tropical microclimate with higher temperatures). At both sites, yacon was planted in four seasons: autumn (April), winter (July), spring (September) and summer (December). At harvest, the tuberous roots were evaluated for leaf area index and the variables of vegetative development and productivity of plants (for total and standard commercial roots). It was concluded that yacon cultivation in mountain conditions (tropical climate with milder temperature) promotes the development and production of yacon. Additionally, planting in the autumn for both growing conditions (mountain or lowland) promotes the development and production of yacon, including increased production of roots of better commercial grade, allowing greater economic profitability. These results indicate that temperature has an influence on the growth and yield of the tuberous roots of yacon, and milder temperatures were more favourable.

show abstract

Section: Discussionmentioning

confidence: 99%

Yacon production at different planting seasons and growing environments

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Na SD, todas as avaliações foram realizadas com as plantas em campo; mudas transplantadas aos 10 DAS foram avaliadas imediatamente antes do transplantio e aos 20 e 30 dias em campo; mudas transplantadas aos 20 DAS foram avaliadas aos 10 e 20 dias em bandejas e aos 30 dias em campo; e mudas transplantadas aos 30 DAS tiveram todas as avaliações feitas quando ainda em bandejas, no dia do transplantio. Foram realizadas as seguintes avalições em dez plantas de cada tratamento: altura de plantas, medindo-se com fita métrica a região entre o colo da planta e a gema apical; diâmetro do caule no colo, aferido com paquímetro digital com duas casas decimais de precisão; número de folhas verdadeiras; área foliar das duas maiores folhas da haste principal, estimada pela relação entre o comprimento e a largura da folha (GALVANI et al, 2000), tomadas quando as plantas tinham 20 e 30 dias de idade, já que antes disso as plantas apresentavam apenas as folhas cotiledonares; e massa seca da parte aérea obtida em estufa de ventilação forçada de ar, em temperatura aproximada de 50 °C, até obtenção de peso constante. Nas oito plantas que compunham a unidade experimental foram avaliadas características relacionadas à produção de frutos, como produtividade comercial (t ha -1 ) e número total de frutos comercias por planta.…”

Section: Methodsunclassified

Yield of cucumber pickles with different cropping systems

et al. 2016

View full text Add to dashboard Cite

ResumoO uso de bandejas de poliestireno para a produção de mudas de hortaliças, incluindo o pepineiro, é uma técnica reconhecida e amplamente utilizada pelos olericultores. Muitos estudos já foram realizados visando a identificação de quais tipos de bandejas de poliestireno são as mais apropriadas para a produção de mudas das várias espécies vegetais. O tempo de permanência pós-emergência das plântulas nessas estruturas, os substratos utilizados, dentre outras variáveis também têm sido alvos de estudos visando ao aprimoramento da técnica de produção de mudas. Contudo, boa parte desses estudos não levou em consideração a possibilidade da semeadura direta (SD) em local definitivo, técnica amplamente utilizada no passado. Como resultado, boa parte das recomendações sobre o cultivo de pepineiro não levam em consideração a possibilidade da SD, técnica que pode apresentar diversos benefícios. Assim, objetivou-se por meio deste trabalho, avaliar a produtividade comercial (PC) de pepinos para picles em diferentes sistemas de cultivo: com mudas transplantadas e com semeio direto no local definitivo. A maior PC foi obtida em SD, com 60,02 t ha -1 e igualmente em mudas transplantadas aos 10 dias após a semeadura (DAS), com 56,62 t ha -1 . As menores PC, e significativamente Ambiência -Revista do Setor de Ciências Agrárias e Ambientais V.12 N.4 Set./Dez. 2016 826 diferentes entre si, ocorreram nos tratamentos 20 DAS, com 40,24 t ha -1 e 30 DAS, com 30,68 t ha -1 .Palavras-chave: Cucumis sativus L.; semeadura direta; bandejas. AbstractThe use of polystyrene trays for producing green seedlings, including cucumber, is a technique recognized and widely used by smallholder farmers. Several studies have been made aiming to identify which polystyrene trays are more suitable for the seedling production for each species. The time remain after seedling emergence in these structures, the substrates used, among other issues have also been targets of studies aimed the seedlings production technique optimization. However, great part of these studies did not take into consideration the possibility of direct sowing (DS) in a definitive place, technique widely used in the past. As a result, great part of recommendations about cucumber cultivation does not take into consideration the possibility of DS, technique which would present several benefits. Therefore, our aim was to evaluate cucumber pickles commercial production (CP) of cucumbers for pickles in different cropping systems: with transplanted seedlings and plants directly sowed on soil. The greatest CP was obtained in DS, with 60,02t ha -1 and equally in transplanted seedlings 10 days after sowing (DAS), with 56,62t ha -1 . The smallest CP, significantly different among themselves, occurred in treatments 20 DAS with 40,24t ha -1 and 30 DAS with 30,68t ha -1 .

show abstract

“…The authors concluded that the increase in fruit yield, number of fruits and fruit mass was attributable to the increased availability of carbohydrates resulting from greater photosynthetic activity in the leaves. Galvani et al (2000) reported correlations between the leaf area index and yield of cucumber, specifically the cultivar Hokuho, under greenhouse and field conditions. The authors found that the maximum yield occurred in areas with the highest leaf area index values in the crops under both conditions.…”

Section: Development and Production Componentsmentioning

confidence: 99%

Nitrogen fertilization and different crop management practices in pickling cucumber (Cucumis sativus L.)

Souza¹,

Borges²,

Benett³

et al. 2018

Aust J Crop Sci

View full text Add to dashboard Cite

The use of nitrogen (N) fertilization has been shown to increase the quality and production of cucumber. Thus, the goal of this work was to evaluate crop management practices with and without shoot pruning and the application of N in a pickling cucumber crop under greenhouse conditions. The experiment was conducted in a greenhouse at the Goiano Federal Institute, Urutaí Campus. The experimental design involved randomized blocks in a 2×5 factorial arrangement, with two different management treatments (with and without pruning) and five doses of N (0, 50, 100, 150 and 200 kg ha -1 N), with four replicates. The doses of N were split among three applications at 15, 30 and 45 days after plant emergence. Each plot contained ten plants with a 0.2-m spacing between plants and a 0.8-m spacing between rows. The four central plants in each plot were evaluated, and the following assessments were performed: leaf N content, relative chlorophyll index, stem diameter, fruit length, fruit diameter, number of fruits, fruit fresh mass, fruit dry mass, shoot fresh mass, production per plant and total yield. The data were subjected to analysis of variance (F test) at the 5% probability level, and when significant effects were observed for the N doses, regression analyses were performed. Management with and without pruning directly influenced the production of pickling cucumber. The doses of N influenced the development and yield of cucumber under greenhouse conditions.

show abstract

Estimativa do índice de área foliar e da produtividade de pepino em meio protegido - cultivos de inverno e de verão

Cited by 8 publications

References 12 publications

Yacon production at different planting seasons and growing environments

Yacon production at different planting seasons and growing environments

Yield of cucumber pickles with different cropping systems

Nitrogen fertilization and different crop management practices in pickling cucumber (Cucumis sativus L.)

Contact Info

Product

Resources

About