Effect of leaf removal on sunflower yield and yield components and some quality characters

Karadoğan, Tahsin; Akgün, İlknur

doi:10.2298/hel0950123k

Cited by 12 publications

(9 citation statements)

References 9 publications

(19 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Means followed by different letters differ according to Tukey's test at 5% probability. Karadoðan and Akgün (2009) reported that leaf growth and development have a strong effect on plant yield and play a key role in the species ability to control water loss. The leaf is the main photosynthetic apparatus, and it accumulates nutrients and organic compounds for translocation to the reproductive organs and grains, thus helping the plants reach higher achene productivity, oil content and crude protein levels (LIMA JUNIOR et al, 2010).…”

Section: Sunflower Cropmentioning

confidence: 99%

Production and nutritional characteristics of sunflowers and paiaguas palisadegrass under different forage systems in the off season

Santos¹,

Costa²,

Oliveira³

et al. 2016

Biosci. J.

View full text Add to dashboard Cite

ABSTRACT:The high efficiency of sunflowers in extracting water from the soil under water stress conditions is a factor that promotes sunflower cultivation in the offseason. Therefore, sunflowers have been intercropped with grasses of the Urochloa genus in crop-livestock integration systems. However, little is known of sowing methods for intercropping; thus, the present study aimed to assess sunflower agronomic traits and the production and nutritional characteristics of Paiaguas palisadegrass under different forage systems in the offseason in the midwest region of Brazil. The experiment was conducted at the Federal Institute of Goiás (Instituto Federal Goiano), Rio Verde Campus in a randomized block experimental design with four replicates. The treatments consisted of the following forage systems: sunflower monocropped; Paiaguas palisadegrass monocropped; sunflower rows intercropped with Paiaguas palisadegrass; sunflower inter-row intercropped with Paiaguas palisadegrass; and sunflower oversown and intercropped with Paiaguas palisadegrass. The results show that the sunflower rows intercropped with Paiaguas palisadegrass negatively affect the agronomic traits of sunflower; thus, inter-row sowing and oversowing are recommended. Sowing Paiaguas palisadegrass with oversown sunflower for forage production is hampered by intercropping and shows low forage production. In turn, the intercropped sowing method had no effect on the nutritional characteristics of the produced forage. Intercropping sunflowers with Paiaguas palisadegrass in the offseason has the potential to provide a promising cropping method for the production of achenes and after harvest enables the availability of forage with good nutritional value for use in the offseason in the midwest region of Brazil.

show abstract

Section: Sunflower Cropmentioning

confidence: 99%

Production and nutritional characteristics of sunflowers and paiaguas palisadegrass under different forage systems in the off season

Santos¹,

Costa²,

Oliveira³

et al. 2016

Biosci. J.

View full text Add to dashboard Cite

show abstract

“…In general, the analysis of the parameters: stem diameter ( Figure 4A), height of the aerial part ( Figure 4B) and number of leaves ( Figure 4C) demonstrated that the application of pig biofertilizer to the growth environment, mainly to 120 kg of N ha -1 , promoted some increase when compared to the control treatment. Regarding the results previously mentioned, we can highlight the increase in number of leaves, due to their importance in the photosynthetic process, especially when associated to the increase of the leaf area (Karadogan & Akgün, 2009). In addition, it is possible that the increase in the relative contents of chlorophyll (Figure 3) caused by the increasing concentrations of biofertilizer have contributed to a greater photosynthetic capacity, and therefore to the increase in the analyzed variables.…”

Section: Source: Research Data (2017)mentioning

confidence: 52%

Viability of Biofertilizer Produced by an Indian Biodigester Prototype Applied to Sunflower Plants

Moura¹,

Teixeira²,

Gondim³

et al. 2017

JAS

View full text Add to dashboard Cite

Biodigesters have been used to convert biomass into biogas and biofertilizers. This energy use has been important for the reduction of solid waste pollution in the environment. This work aims to analyse the viability of the use of pig biofertilizer produced by an Indian biodigester prototype, monitored by a data acquisition system. The biodigester used was an Indian prototype built on a low cost material that is easy to acquire (polyvinyl chloride-PVC). After the biofertilizer production, we tested its efficiency and viability under conditions of vegetation house in the cultivation of sunflower plants. The experimental design was completely randomized in a factorial arrangement with 4 concentrations of biofertilizer (0, 40, 80 and 120 kg N ha -1 ) × 4 harvest periods (14, 21, 25 and 29 days after sowing). We evaluated biometric and vigor parameters by measurements of stem diameter, height of the aerial part, number of leaves and production of fresh and dry matter of roots, aerial and total parts, as well as the relative chlorophyll content. We performed the experiment with five repetitions using two plants each and we submitted the data to analysis of variance (ANOVA) and polynomial regression using the statistical software Sisvar 5.4. The functional Indian biodigester prototype produced a biofertilizer of excellent quality and viability as a biofertilizer for the initial growth of sunflower plants. The biofertilizer served as a nutritional source in the sunflower crop, since it provided increases in all the growth parameters analyzed in relation to the control group (plants in the absence of biofertilizer), especially in the concentration of 120 kg N ha -1 .

show abstract

“…Considering the above mentioned results, the increment in number of leaves can be highlighted, given its importance in the photosynthetic process, especially when associated with the increase in leaf area (Karadogan & Akgün, 2009).…”

Section: Resultsmentioning

confidence: 97%

Sanitary landfill leachate as a source of nutrients on the initial growth of sunflower plants

Júnior

Gondim

Pereira

et al. 2016

Rev. bras. eng. agríc. ambient.

View full text Add to dashboard Cite

The aim of this study was to evaluate the initial growth of sunflower seedlings under different concentrations of sanitary landfill leachate, considering the feasibility of its use as source of nutrients for agricultural production. Biometric and vigor variables were analyzed through the measurements of collar diameter, shoot height, number of leaves and shoot and root fresh and dry matters, from January to February 2015. The experimental design was completely randomized in a 5 x 4 factorial scheme: five leachate concentrations (0, 40, 60, 80 and 100 kg N ha-1) x four harvest periods (14, 21, 25 and 29 days after sowing), with five replicates each containing two plants. The data were subjected to analysis of variance and polynomial regression, and the results of the last harvest (29 DAS) were compared by Tukey test (p ≤ 0.05). The use of sanitary landfill leachate increased all analyzed variables in sunflower plants when compared to the control plants (without leachate), especially in the treatment of 100 kg N ha-1. There was no inhibitory effect of the leachate on the initial growth of sunflower seedlings under adopted experimental conditions.

show abstract

Effect of leaf removal on sunflower yield and yield components and some quality characters

Cited by 12 publications

References 9 publications

Production and nutritional characteristics of sunflowers and paiaguas palisadegrass under different forage systems in the off season

Production and nutritional characteristics of sunflowers and paiaguas palisadegrass under different forage systems in the off season

Viability of Biofertilizer Produced by an Indian Biodigester Prototype Applied to Sunflower Plants

Sanitary landfill leachate as a source of nutrients on the initial growth of sunflower plants

Contact Info

Product

Resources

About