Rendimento e qualidade de cultivares de pepino para processamento em função do espaçamento de plantio

Resende, G. M. de; Flori, J. E.

doi:10.1590/s0102-05362004000100025

Cited by 7 publications

(3 citation statements)

References 9 publications

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“…The F-values found were adequate and fit in the very high accuracy class, according to Resende and Duarte (2007), meeting the requirements of the breeders for a selection decision. These authors indicate that observing only the coefficient of variation parameter (CVe) value is insufficient to make inferences about the experimental quality.…”

Section: Resultsmentioning

confidence: 64%

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Genetic parameter estimates in irrigated barley genotypes in the brazilian savanna of the Federal District

Thomé,

Amabile,

Souza

et al. 2024

Rev. Caatinga

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Barley is an important crop for Brazil and an advantageous alternative for irrigated cultivation in the Brazilian Savanna. The present study aimed to characterize and estimate genetic, phenotypic, and environmental parameters and select genotypes from the Embrapa Cerrados irrigated barley working collection. The experiment was established in Randomized Blocks with four replications under irrigation in Embrapa Cerrados, Planaltina-DF. The traits evaluated were grain yield, commercial classification of first grains, 1000-seed weight, plant height, lodging, and cycle. The genetic parameters and correlations between the traits evaluated were obtained. High values of heritability, in a broad sense, were verified. The high coefficients of genotypic variance and the high selective accuracy obtained corroborate the favorable environmental condition for the selection of genotypes. It was verified that the genotypic correlations were higher than the phenotypic correlation coefficients, showing a greater contribution of genetic factors in the expression of the traits. Earlier genotypes had higher grain yields, first-class commercial classification, 1000-seed weight, and height. There was a strong positive correlation between the commercial classification of first grains and 1000-seed weight. Genotypes PFC 2005143, PFC 2006134, and PFC 2004212 were selected for use in crossbreeding blocks within the Brazilian irrigated barley breeding program.

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Section: Resultsmentioning

confidence: 64%

“…The F value has often been used to indicate the degree of experimental accuracy. For Resende and Duarte (2007), the F value of genotypic evaluation trials should be greater than 5.26 to achieve the class of "very high" accuracy, which is recommended by Steel and Torre (1980), which provides an accuracy of 90% at least.…”

Section: Resultsmentioning

confidence: 99%

Genetic parameter estimates in irrigated barley genotypes in the brazilian savanna of the Federal District

Thomé,

Amabile,

Souza

et al. 2024

Rev. Caatinga

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“…Studies on plant management and pruning systems are important for understanding the physiological factors associated with the production performance of the crop and for the adoption of more appropriate production systems to meet the demands of the produce sector and the market (Sediyama et al, 2014). The management of production and distribution of photoassimilates consists of pruning the plant population and maximizing the fruit production, which are related to the need to achieve the potential production of assimilates throughout the entire plant and to allocate the assimilates with the greatest possible quality for fruit production (Schvambach et al, 2002;Resende and Flori, 2004). N is a nutrient that influences processes involved in plant growth, development and yield, and it changes the source-sink relationship and, consequently, the ratio of assimilates between vegetative and reproductive organs (Queiroga et al, 2007).…”

Section: Introductionmentioning

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

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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.

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Spacing between plants and cultivar affect the production componentes of Italian zucchini

Grangeiro

Cordeiro

Sousa

et al. 2020

Rev. bras. eng. agríc. ambient.

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The italian zucchini is a vegetable of national importance, much appreciated, which requires techniques that aim to increase production in less space. Plant spacing can influence the development of plants and the fruit production. The objective of this study was to evaluate the performance of Italian zucchini cultivars as a function of plant spacing. The experimental design was a randomized blocks in a 2 x 4 factorial scheme with four repetitions. The treatments consisted of a combination of two cultivars of zucchini (Alícia and Caserta) and four spacings between plants (0.4, 0.5, 0.6 and 0.7 m). The evaluated characteristics were: total number of fruits plant-1, number of commercial fruits plant-1, total productivity, commercial and non commercial, fresh mass of commercial fruits and dry mass of the plant. The cultivars responded differently to spacings between plants. The Alicia hybrid showed higher commercial yield, 28,490.5 kg ha-1 at spacing of 0.64 m between plants and Caserta cultivar, 26,398.8 kg ha-1 at spacing of 0.4 m.

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Rendimento e qualidade de cultivares de pepino para processamento em função do espaçamento de plantio

Cited by 7 publications

References 9 publications

Genetic parameter estimates in irrigated barley genotypes in the brazilian savanna of the Federal District

Genetic parameter estimates in irrigated barley genotypes in the brazilian savanna of the Federal District

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

Spacing between plants and cultivar affect the production componentes of Italian zucchini

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