Correlation and path analysis in sunflower

Chikkadevaiah, C; Sujalha, H.L.; Nandini, R.

doi:10.2298/hel0237109c

Cited by 21 publications

(16 citation statements)

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“…Likewise, hundred seed weight and oil content also had high positive direct effects. Oil content had high direct effect on seed yield documented by (Chikkadaviah et al, 2002). Current findings revealed that 100 SW, OC percentage, DFI, DFC and HD can be contemplated as assortment benchmark for direct refinement in seed yield while for indirect improvement, plant height and days to maturity are important traits.…”

Section: Path Coefficient Analysismentioning

confidence: 83%

Investigation of Genetics Divergence in Newly Developed Local Sunflower (Helianthus annuus L.) Hybrids

Arshad¹,

Jan²,

Awan³

et al. 2018

PJAR

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S unflower botanically known as Helianthus annuus L. is an imperative crop mainly grown for production of oil however also used as raw material in industry (Mijic et al., 2009). Sunflower ranked third among major oil producing crops (cotton, brassica and sunflower) in Pakistan. Area of sunflower during 2016-17 (Spring) was 216 (000 Acres) having oil production of 41000 tons (Economic Survey of Pakistan, 2016-17). Sunflower seeds contain 50% Fat and 20% protein. Sunflower oil is of finest quality oil because of increased percentage of unsaturated fatty acids, light color, low quantity of linolenic acid, blend flavor and high smoke point. Oleic and linoleic acid are primary fatty acids (approximately 90 % unsaturated fatty acids) in sunflower oil, however among others are palmitic and stearic saturated fatty acids (Arshad et al., 2007). In Pakistan, sunflower is a second major source Abstract | Locally developed twenty four sunflower hybrids were appraised for different agronomic traits to assess genetic specifications, genetic divergence, and correlation coefficient, direct and indirect effects of eight characters towards seed yield under field condition. Experiment was conducted according to RCBD design at NARC (National Agricultural Research Centre), Islamabad during year 2015. Data were recorded on Days to flower initiation, Days to flower completion and Days to maturity, 100 seed weight, oil content percentage and Seed Yield. Results of ANOVA revealed that there is remarked variation among all hybrids under study for seed yield and other allied character while non-significant differences were observed for replications except days to flower initiation. In the present study both positive and negative correlations were found between different traits. Days to flower initiation (DFI), days to flower completion (DFC) and days to maturity (DM) contribute positively and highly significantly with plant height (PH) for both genotypic and phenotypic level. Correlation between plant height and oil content was found to be highly significant and positive. Seed yield had positive association but non-significant with DFI, PH 100SW, HD and OC percentage while negative association with DFC and DM. DFI, DFC, HD, 100 SW and OC percentage contribute positively toward seed yield. Present study depicts that for improvement in yield, HD and oil content should be given top priority. Based on WARD's method genotypes were assigned into seven clusters at 25% linkage distance. Hybrids in Cluster II and IV with high seed yield and oil content were selected as desirable hybrids and suggested to exploit further under diverse environments.

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Section: Path Coefficient Analysismentioning

confidence: 83%

Investigation of Genetics Divergence in Newly Developed Local Sunflower (Helianthus annuus L.) Hybrids

Arshad¹,

Jan²,

Awan³

et al. 2018

PJAR

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“…Avaliação de híbridos de girassol e relação entre parâmetros produtivos e qualitativos A correlação significativa e positiva entre diâmetro de capítulo e massa de mil grãos (r = 0,44**) foi constatada também por Khan (2001), Chikkadevaiah et al (2002), Habib et al (2007) e Machikowa e Saetang (2008). As variáveis número de grãos por capítulo e diâmetro de capítulo apresentaram correlação significativa e positiva (r = 0,71**).…”

Section: Resultsunclassified

“…Machikowa e Saetang (2008) encontraram essa resposta para diâmetro de capítulo, massa de mil grãos e percentagem de grãos normais. Chikkadevaiah et al (2002) encontraram correlação significativa e positiva para massa de mil grãos e diâmetro de capítulo.…”

Section: E Khan (2001)unclassified

“…Mijic et al (2009) encontraram o mesmo comportamento para massa de mil grãos, produtividade e teor de óleo. Chikkadevaiah et al (2002) encontraram a mesma resposta para massa de mil grãos, diâmetro de capítulo, produtividade e teor de óleo.…”

Section: E Khan (2001)unclassified

“…Alguns ensaios em girassol têm como objetivo avaliar o potencial produtivo e estimar correlações entre diferentes características agronômicas em vários genótipos (CHIKKADEVAIAH et al, 2002;FARHATULLAH et al, 2006;HLADNI et al, 2006;HABIB et al, 2007;KAYA et al, 2007;KHAN 2001;MACHIKOWA;SAETANG, 2008;MIJIC et al, 2009).…”

Section: Introductionunclassified

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Avaliação de híbridos de girassol e relação entre parâmetros produtivos e qualitativos

et al. 2012

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RESUMO -O presente estudo teve o objetivo de determinar genótipos superiores de girassol, bem como realizar estudos de correlação entre suas características. Avaliou-se seis híbridos de girassol em condições de safrinha no município de Palotina -PR. O estudo avaliou quinze variáveis: massa seca de folhas, massa seca de caule e pecíolos, massa seca total, área foliar, altura de planta, diâmetro de colmo, massa de grãos por capítulo, diâmetro de capítulo, percentagem de grãos normais, massa de mil grãos, número de grãos por capítulo, produtividade, teor de proteína bruta, teor de óleo e rendimento de óleo. Os dados direcionam os híbridos H360 e MG2 com boa produtividade e maior teor de óleo para a produção de óleo e os híbridos M734 e Aguará 3 para a alimentação animal, com boa produtividade e menor teor de óleo. As correlações entre produtividade e os componentes de produção foram de 0,62; 0,47; 0,60; 0,49 e 0,47 para massa de grãos por capítulo, diâmetro de capítulo, percentagem de grãos normais, massa de mil grãos e número de grãos por capítulo, respectivamente, concluindo que a seleção de materiais a partir desses componentes ocasionará a seleção de materiais promissores em produtividade. Palavras-chave:Hellianthus annuus L. Correlação. Genótipos. ABSTRACT -The objective of this work was to determine superior genotypes of the sunflower, as well as to study the correlation between its characteristics. Six sunflower hybrids were evaluated under late-summer conditions in Palotina in the state of Paraná. The study evaluated fifteen variables: leaf dry mass, stem and petiole dry mass, total dry mass, leaf area, plant height, stem diameter, grain weight per head, head diameter, percentage of normal grains, thousand grain weight, number of grains per head, productivity, crude protein content, oil content and oil yield. According to the data, the hybrids H360 and MG2, with good productivity and higher oil content, are indicated for oil production, and the hybrids M734 and Aguará 3, with good productivity and lower oil content, for animal feed. The correlation between productivity and yield components were 0.62, 0.47, 0.60, 0.49 and 0.47, for grain weight per head, head diameter, percentage of normal grains, thousand grain weight and number of grains per head respectively, leading to the conclusion that the selection of materials from among these components will result in the selection of promising materials for productivity.

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Biomorphological Association and Path Analysis in Sunflower (Helianthus annuus L.)

Jocković

Jocić

Marjanović-Jeromela

et al. 2015

Helia

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In breeding process it is important to know the extent of association between the traits that affect the yield. Objective of this study was to determine genotypic and phenotypic correlation and path coefficients in 50 sunflower hybrid combinations in order to identify research priorities in sunflower breeding. Relationships between seed yield and five bio-morphological traits in sunflower (oil content, protein content, 1,000-seed weight, head diameter and plant height) were studied. Head diameter had the highest correlation coefficient with seed yield, at phenotypic and genotypic level. Path analysis revealed that all evaluated traits had positive influence on seed yield at both, genotypic and phenotypic, levels. The highest direct effect on seed yield was found for head diameter, while protein content had the lowest direct effect on seed yield. Study has shown that the greatest improvement in sunflower seed yield can be achieved through selection on head diameter.

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Correlation and path analysis in sunflower

Cited by 21 publications

References 2 publications

Investigation of Genetics Divergence in Newly Developed Local Sunflower (Helianthus annuus L.) Hybrids

Investigation of Genetics Divergence in Newly Developed Local Sunflower (Helianthus annuus L.) Hybrids

Avaliação de híbridos de girassol e relação entre parâmetros produtivos e qualitativos

Biomorphological Association and Path Analysis in Sunflower (Helianthus annuus L.)

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