NDLI: CROP PROTECTION Resistência de Genótipos de Aboboreira a Bemisia tabaci (Genn.) Biótipo B (Hemiptera: Aleyrodidae)

Please wait, while we are loading the content...

CROP PROTECTION Resistência de Genótipos de Aboboreira a Bemisia tabaci (Genn.) Biótipo B (Hemiptera: Aleyrodidae)

Content Provider	Semantic Scholar
Author	Valle, Giuliana Etore Do Lourenção, E. André L. Capes, Bolsista Da
Copyright Year	2002
Abstract	Whitefly control using resistant cultivars can be considered the ideal option in integrated pest management programs. Squash cultivars and lines with different genealogies have been developed and released by private and public research institutions. However, little information is available about the resistance or susceptibility of those genotypes to insects. The main squash (Cucurbita spp.) cultivars available in the Brazilian market were evaluated as to Bemisia tabaci biotype B resistance, under greenhouse conditions. The cultivar 'Golden Delight' was the most attractive to adults, while 'Menina Brasileira', 'Barbara' and 'Atlas' presented the lowest numbers of adults on the abaxial leaf surfaces. Oviposition was evaluated in free-choice and no-choice tests. 'Novita', 'Exposicao' and 'Caserta' behaved as resistant and showed oviposition nonpreference as the resistance mechanism. The cycle from egg to adult emergence was determined in six genotypes. In 'Golden Delight', the duration of this cycle was the shortest one (24.9 days), and the percentage of adult emergence, the highest one (93.8%), thus indicating that this cultivar is suitable to the insect. On the other hand, 'Exposicao' and 'Menina Brasileira' prolonged this cycle (35.8 and 33.5 days, respectively) and reduced the adult emergence (46.3 and 58.1%), showing to be resistant. RESUMO - O uso de cultivares resistentes para controle de mosca-branca integra-se de forma harmonica em programas de manejo integrado. Cultivares e linhagens de aboboreira com diferentes genealogias e caracteristicas tem sido desenvolvidas e liberadas aos produtores por instituicoes privadas e oficiais. Pouco se sabe sobre a resistencia ou suscetibilidade desse germoplasma a insetos. Assim, avaliaram-se em condicoes de casa de vegetacao dezesseis genotipos de aboboreiras (Cucurbita spp.) disponiveis no mercado brasileiro em relacao a Bemisia tabaci (Genn.) biotipo B. O hibrido Golden Delight foi o mais atrativo aos adultos enquanto 'Menina Brasileira', 'Barbara' e 'Atlas' apresentaram os menores numeros de adultos na superficie inferior das folhas. A oviposicao foi avaliada em experimentos com e sem chance de escolha. 'Novita', 'Exposicao' e 'Caserta' foram as cultivares com menor numero de ovos, apresentando nao preferencia para oviposicao como mecanismo de resistencia. O ciclo de ovo a adulto foi avaliado em seis genotipos, incluindo-se os de melhor desempenho nos testes anteriores mais uma testemunha suscetivel. Em 'Golden Delight', a duracao desse ciclo foi a mais curta (24,9 dias) e a porcentagem de emergencia de adultos a mais elevada (93,8%), indicando ser um genotipo adequado ao desenvolvimento do inseto. Ja 'Exposicao' e 'Menina Brasileira' prolongaram esse ciclo (35,8 e 33,5 dias, respectivamente) e reduziram a emergencia de adultos (46,3 e 58,1%), mostrando-se resistentes.
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://www.scielo.br/pdf/ne/v34n6/28218.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

Central Library (ISO-9001:2015 Certified)
Indian Institute of Technology Kharagpur
Kharagpur, West Bengal, India | PIN - 721302

See location in the Map
03222 282435
Mail: support@ndl.gov.in

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in