VARIABILITY OF Phomopsis POPULATIONS IN SUNFLOWER (Helianthus annuus L.) / VARIABILIDAD DE LAS POBLACIONES DE Phomopsis EN EL GIRASOL (Helianthus annuus L.) / VARIABILITÉ DES POPULATIONS DE Phomopsis CHEZ LE TOURNESOL (Helianthus annuus L.)

Helia ◽  
2001 ◽  
Vol 24 (34) ◽  
pp. 69-76 ◽  
Author(s):  
J. Vukojević ◽  
M. Mihaljčević ◽  
D. Franić-Mihajlović

SUMMARY Various reports state that the sunflower disease, primarily caused by Diaporthe/Phomopsis helianthi Munt.-Cvet. et al., has a wide geographic distribution in Europe, USA, Argentina and Australia. Various Phomopsis isolates obtained during this investigation of the sunflower disease differed in conidial type (α, β, α and β). Phomopsis helianthi was the only isolate producing exclusively β-conidia and perithecia on debris (Diaporthe helianthi). The other Phomopsis isolates were saprobes on sunflower plants.

Helia ◽  
2001 ◽  
Vol 24 (34) ◽  
pp. 25-34
Author(s):  
M.P. Rajanna ◽  
A. Seetharam ◽  
K. Virupakshappa ◽  
S. Ramesh

SUMMARY Standard heterosis was estimated for eight quantitative traits in top-cross hybrids of three diverse cytoplasmic male sterile (CMS) sources of sunflower viz., Helianthus petiolaris (CMS-PET1), Helianthus petiolaris ssp. fallax (CMS-PEF1) and Helianthus annuus ssp. lenticularis (CMS-ANL2) maintained under different nuclear backgrounds. The top-cross hybrids were derived by crossing the above three CMS sources with 12 male parents in a line x tester design. Significant heterosis over two standard checks in the desirable direction was observed for all traits. All three sources under study advanced the maturity in most of the hybrids. CMS-PET1 was found to be the best compared with the other sources as far as oil content was concerned. Mean performance of the hybrids for achene yield and other economically important characteristics indicated that the hybrids derived in the cytoplasmic background of CMSANL2 were the best followed by CMS-PET1 and CMS-PEF1 suggesting that CMS diversification in heterosis breeding programs would be rewarding in sunflower.


Irriga ◽  
2015 ◽  
Vol 20 (4) ◽  
pp. 667-679 ◽  
Author(s):  
Denise Vieira Vasconcelos ◽  
Benito Moreira de Azevedo ◽  
Carlos Newdmar Vieira Fernandes ◽  
Olienaide Ribeiro de Oliveira Pinto ◽  
Thales Vinícius de Araújo Viana ◽  
...  

MÉTODOS DE APLICAÇÃO E DOSES DE NITROGÊNIO PARA A CULTURA DO GIRASSOL  DENISE VIEIRA VASCONCELOS1; BENITO MOREIRA DE AZEVEDO2; CARLOS NEWDMAR VIEIRA FERNANDES3; OLIENAIDE RIBEIRO DE OLIVEIRA PINTO4; THALES VINÍCIUS DE ARAÚJO VIANA2 E JOSÉ BRUNO RÊGO DE MESQUITA1 [1]Programa de Pós-Graduação em Engenharia Agrícola, CCA/UFC, Av. Mister Hull, s/n, Bloco 804. Caixa Postal 12.168, Fortaleza-CE, Brasil, 60.455 970, [email protected], [email protected] de Engenharia Agrícola, CCA/UFC, Av. Mister Hull, s/n, Bloco 804. Caixa Postal 12.168, Fortaleza-CE, Brasil, 60.455 970, [email protected], [email protected] Federal de Educação Ciência e Tecnologia do Ceará (IFCE), Campus Iguatu, Rodovia CE-060, Cajazeiras 63503-790 – Iguatu, CE, Brasil. [email protected] de Pós-Graduação em Agronomia/Fitotecnia, CCA/UFC, Av. Mister Hull, s/n, Bloco 805. Caixa Postal 12.168, Fortaleza-CE, Brasil, 60.455 970, [email protected]  1 RESUMO Objetivou-se avaliar os efeitos de formas de aplicação e doses de nitrogênio sobre as propriedades produtivas de plantas de girassol, variedade Catissol 01. O experimento foi conduzido na área experimental da Universidade Federal do Ceará, localizada no Campus do Pici, no município de Fortaleza, no período de março a julho de 2008. O delineamento experimental foi de blocos ao acaso com oito tratamentos em arranjo fatorial 2 x 4, e quatro repetições. Os tratamentos foram constituídos por duas formas de aplicação (convencional e fertirrigada) associadas a quatro doses de nitrogênio (0; 30; 60; 120 kg ha-1). Na fertirrigação as dosagens de nitrogênio foram parceladas em oito aplicações, sendo a primeira na semeadura e as demais aplicadas semanalmente, na adubação convencional as dosagens foram parceladas em duas aplicações, sendo 1/3 da dose no plantio e os outros 2/3 aos 30 dias após a germinação. Foram analisadas as seguintes variáveis: produtividade, diâmetro do capítulo, peso do capítulo e peso de 100 aquênios. Os resultados mostraram que não houve diferença entre os métodos de aplicação do nitrogênio, havendo efeito somente das doses avaliadas. A máxima produtividade (3.334,05 kg ha-1) foi obtida com a dose ótima estimada em 86,77 kg N ha-1.Palavras-chave: Helianthus annuus L. Catissol. Fertirrigação.  VASCONCELOS, D. V.; AZEVEDO, B. M. DE; FERNANDES, C. N. V.; PINTO, O. R. DE O.; VIANA, T. V. DE A.; MESQUITA, J. B. R. DE APPLICATION METHODS AND DOSES OF NITROGEN FOR SUNFLOWER CULTIVATION  2 ABSTRACT This study was aimed at evaluating the effects of Nitrogen application methods and doses of  Nitrogen on the  properties of sunflower plants. The experiment was conducted at the experimental area of  Ceará Federal University, in the Campus do Pici, Fortaleza city, from March to July 2008. The experimental design was randomized blocks with eight treatments, in a 2 x 4 factorial arrangement and four replicates.    Treatments consisted of two application methods (conventional and fertigation) and four doses of Nitrogen (0; 30; 60; 120 kg ha-1). For fertigation, doses of Nitrogen were divided into eight applications, the first one at sowing and the other ones were applied weekly. For conventional fertilization, the doses of total Nitrogen were divided into two applications, 1/3 dose applied at planting and 2/3  dose applied at 30 days after germination. The following parameters were analyzed: yield, diameter of the flower head, weight of the flower head and weight of 100 achenes. The results showed no differences between Nitrogen application methods, but with effect of applied Nitrogen doses.  The highest yield (3,334.05 kg ha-1) was obtained using the optimal dose estimated as 86.77 kg N ha-1. Keywords: Helianthus annuus L., Catissol, fertigation.


2017 ◽  
Vol 98 (7) ◽  
pp. 1609-1618 ◽  
Author(s):  
Nikolaos Katsiaras ◽  
Maria Rousou ◽  
Luis F. Carrera-Parra ◽  
Sergio Carlos Garcia-Gomez ◽  
Nomiki Simboura ◽  
...  

The polychaeteGallardoneris ibericawas described in soft-bottom benthic habitats from the Atlantic Iberian Peninsula coasts in 2012. Since then, successive studies have found this species in Spain, Italy and Croatia. The present study is the first to reportG. ibericafor Greece and Cyprus (42 new records) confirming its wide geographic distribution on southern European coasts. Taxonomic accounts and ecological preferences based on a large survey and review of available literature are being presented. The species was frequently found in habitats characterized by infralittoral muddy sands with variable organic matter and ‘Moderate’ ecological quality status; nevertheless it was also recorded in coarser and finer sediments, circalittoral mixed sediments, phytal substrates and undisturbed sites. Its relative abundance per sample was always lower than 2%. A review of the available ecological and geographic data of the otherGallardonerisspecies and a worldwide taxonomic key toGallardonerisspecies are provided.


2021 ◽  
Author(s):  
Yu.V. Chebanova ◽  
◽  
T.A. Kovalenko ◽  

There is a demand in the food industry for natural solid vegetable oils. The use of sunflower oil with a high content of stearic acid prevents its hydrogenation in the manufacture of food products. The development of new lines of sunflower (Helianthus annuus L.) with an increased content of stearic acid may increase the demand for sunflower oil, a useful analogue of solid vegetable oils for special food purposes. We identified two inbred lines with a high content of stearic and oleic acids from a source with a high content of these acids, one of which, I5HSHO-1, is one-headed, the other, I5HSHO-2v, is many-branched, as well as two one-headed lines with high content of stearic acid on the linoleic background (I5HSLO-1, I5HSLO-2).


Author(s):  

Abstract A new distribution map is provided for Diaporthe helianthi Muntanola-Cvetkovic, Mihaljcevic & Petrov Fungi: Ascomycota: Diaporthales Hosts: Sunflower (Helianthus annuus). Information is given on the geographical distribution in EUROPE, France, Mainland France, Hungary, Italy, Mainland Italy, Moldova, Romania, Russia, Southern Russia, Slovakia, Spain, Ukraine, Yugoslavia (Fed. Rep.), ASIA, Pakistan, AFRICA, Morocco, NORTH AMERICA, Mexico, USA, Minnesota, Texas, SOUTH AMERICA, Argentina, Venezuela.


2018 ◽  
Vol 53 (3) ◽  
pp. 485-498
Author(s):  
G.P. Kononenko ◽  
◽  
M.I. Ustyuzhanina ◽  
A.A. Burkin ◽  
◽  
...  

2014 ◽  
Vol 2014 (2) ◽  
pp. 83-91
Author(s):  
Alfredo Garcia-Perez ◽  
◽  
Mark Harrison ◽  
Bill Grant ◽  
◽  
...  

Sign in / Sign up

Export Citation Format

Share Document