Nematicidal fluorescent pseudomonads for the in vitro and in vivo suppression of root knot (Meloidogyne incognita) of Capsicum annuum L.

2012 ◽  
Vol 68 (8) ◽  
pp. 1148-1155 ◽  
Author(s):  
Verinder Wahla ◽  
Dinesh K Maheshwari ◽  
Vivek K Bajpai
Keyword(s):  
Capsicum Annuum ◽  
Meloidogyne Incognita ◽  
Fluorescent Pseudomonads ◽  
Capsicum Annuum L

scholarly journals Formation and metabolism of pungent principles of Capsicum fruits. II. In vivo and in vitro formation of dihydrocapsaicin in sweet pepper fruits, Capsicum annuum L. var. grossum.

1977 ◽  
Vol 41 (10) ◽  
pp. 1877-1882 ◽  
Author(s):  
Kazuo IWAI ◽  
Tetsuya SUZUKI ◽  
Kap-Rang LEE ◽  
Masahiro KOBASHI ◽  
Sinzaburo OKA
Keyword(s):  
Capsicum Annuum ◽  
Sweet Pepper ◽  
Capsicum Annuum L

scholarly journals Anastomosis grouping of Rhizoctonia solani and binucleate Rhizoctonia spp. isolated from pepper in Erzincan, Turkey

2013 ◽  
Vol 49 (No. 3) ◽  
pp. 127-131 ◽  
Author(s):  
S. Tuncer ◽  
C. Eken
Keyword(s):  
Rhizoctonia Solani ◽  
Capsicum Annuum ◽  
Binucleate Rhizoctonia ◽  
Anastomosis Groups ◽  
Capsicum Annuum L

Ninety eight isolates of Rhizoctonia spp. were obtained from roots of pepper (Capsicum annuum L.) grown in Erzincan, Turkey during the period 2007–2008. The most prevalent multinucleate anastomosis groups (AG) were AG-4 (85.2%), followed by AG-2 type 1 (7.4%), AG-6 (5.0%), and AG-3 (2.5%). The population of binucleate Rhizoctonia spp. comprised AG-A (82.4%), AG-K (11.8%), and AG-G (5.9%). Rhizoctonia solani AG-3 and AG-6, as well as binucleate Rhizoctonia spp. AG-G and AG-K on pepper (C. annuum) were firstly determined in this study. During both in vitro and in vivo pathogenicity experiments differences in virulence level between R. solani and binucleate Rhizoctonia spp. isolates were observed. Isolates of R. solani AG-2 type 1 and AG-4 were the most virulent, binucleate Rhizoctonia spp. isolates of AG-A were less virulent, whereas binucleate Rhizoctonia spp. isolates of AG-G and AG-K were non-pathogenic.  

scholarly journals The Amendment with Chitin and/or Chitosan Improves the Germination and Growth of Lycopersicon esculentum L., Capsicum annuum L. and Solanum melongena L.

2020 ◽  
Author(s):  
Rkhaila Amine ◽  
El Hartiti Abla ◽  
Bouziani Idrissi Mohammed ◽  
Ounine Khadija
Keyword(s):  
Lycopersicon Esculentum ◽  
Capsicum Annuum ◽  
Solanum Melongena ◽  
Germination Percentage ◽  
In Vivo Test ◽  
Capsicum Annuum L ◽  
Chitin And Chitosan ◽  
Germination And Growth

Background: Chitin and chitosan are natural products extracted from shrimp shells. They are non-toxic, biocompatible and biodegradable which favors many applications in agricultural domain. Moreover, chitin and chitosan are known as stimulators of photosynthetic rates and enhance pants growth through minerals contains (C, O, N ….). In the present study, these co-products are evaluated for their ability to stimulate the germination and growth of Lycopersicon esculentum L., Capsicum annuum L. and Solanum melongena L. Methods: The experiments were conducted at Ibn Tofail University-Kenitra, between July 2016 to January 2018. The experiments are carried out by using a germination test for the three seeds. On the other hand, the in vivo test is used to determine the effect of the biopolymers on plant growth (length, fresh and dry weights of aerial and root parts, number and weight of the obtained fruits). Result: In vitro studies reveal a promoter action of chitosan and the mixture chitin-chitosan on increasing seed germination percentage by 16%, 34% and 22%. Thus, at both 25, 50 and 100 mg/l of chitin or chitosan, increase vigor index, shoot length and root is obtained. In vivo, the effect of chitin and chitosan is limited to stimulation of the lengths, fresh and dry weights of plants. However, a highly significant increase in the number and weight of the fruits is marked by the weekly soil amendment by the chitin-chitosan mixture at 25 mg/l and 100 mg/l.

Micropropagation of Pepper (Capsicum annuum L.) Through in vitro Direct Organogenesis Organogenesis

2010 ◽  
Vol 3 (1) ◽  
pp. 38-45 ◽  
Author(s):  
Mahmoud Otroshy ◽  
Kosar Moradi ◽  
Mojtaba Khayam Nekouei ◽  
Paul C. Struik
Keyword(s):  
Capsicum Annuum ◽  
Direct Organogenesis ◽  
Capsicum Annuum L

scholarly journals Efeito de extratos aquosos de espécies de Asteraceae sobre Meloidogyne incognita

2013 ◽  
Vol 39 (1) ◽  
pp. 40-44 ◽  
Author(s):  
Isabel Cristina Madeira Ferreira ◽  
Gilson Soares da Silva ◽  
Fagner Sousa Nascimento
Keyword(s):  
Meloidogyne Incognita ◽  
Tagetes Patula ◽  
Tithonia Diversifolia ◽  
Tridax Procumbens

Estudou-se, in vitro e in vivo a atividade nematicida dos extratos aquosos de vedélia (Sphagneticola trilobata), erva-de-touro (Tridax procumbens), cravo-de-defunto (Tagetes patula), girassol mexicano (Tithonia diversifolia), botão de ouro (Unxia suffruticosa) e zínia (Zinnia peruviana), sobre Meloidogyne incognita. Os extratos foram preparados na proporção de 1,0g do material seco e triturado para 10mL de água destilada e armazenados por 24h, sendo seguidamente utilizados nos experimentos. Nos testes in vitro, foram depositados 4,0mL do extrato bruto e 2,0mL de uma suspensão aquosa contendo 200 ovos do nematóide em placas de Petri de 5cm de diâmetro e, quinze dias após, procedeu-se a contagem do número de juvenis eclodidos e dos ovos remanescentes para o cálculo das porcentagens de eclosão. Nos testes in vivo, os extratos foram aplicados, separadamente, via pulverização foliar, tratamento de raiz e vertido no solo, semanalmente durante 60 dias. Como testemunha utilizou-se apenas água nos dois experimentos. No ensaio in vitro observou-se que todos os extratos foram eficientes na redução da eclosão de juvenis de M. incognita quando comparados à testemunha, as porcentagens de redução foram 89,96%, 91,13%, 92,48%, 92,72%, 93,2% e 97,48% para erva-de-touro, cravo-de-defunto, girassol mexicano, vedélia, botão de ouro e zínia, respectivamente, e no ensaio in vivo, que os tratamentos não exerceram nenhum efeito sobre o peso do sistema radicular dos tomateiros, no entanto, observou-se que os resultados diferiram entre as espécies utilizadas e a forma de aplicação do extrato na avaliação do peso fresco da parte aérea das plantas. Quanto ao fator de reprodução, observou-se que nenhum dos extratos apresentou diferença estatística em relação à testemunha, no entanto, quando se compara as diferentes formas de aplicação dos mesmos, observa-se que houve diferença estatística quando os extratos de erva de touro e girassol mexicano foram aplicados via pulverização foliar e no tratamento de raiz, contudo, não houve diferença quando estes extratos foram aplicados em forma de rega no solo.

scholarly journals Susceptibilidad de aislados de Xanthomonas campestris pv. vesicatoria a Streptomyces y extractos bioactivos de Ganoderma

2018 ◽  
Vol 27 (6) ◽  
pp. 30-39
Author(s):  
Loreto Robles-Hernández ◽  
Dámaris Leopoldina Ojeda-Barrios ◽  
Ana Cecilia González-Franco ◽  
Jared Hernández-Huerta ◽  
Nora Aideé Salas-Salazar ◽  
...  
Keyword(s):  
Capsicum Annuum ◽  
Ganoderma Lucidum ◽  
Xanthomonas Campestris ◽  
Streptomyces Lydicus ◽  
Capsicum Annuum L

En el presente estudio, 10 aislados bacterianos de chile (Capsicum annuum L.) fueron identificados como Xanthomonas campestris pv. vesicatoria; se determinó su patogenicidad en invernadero y se evaluó su susceptibilidad a Streptomyces lydicus y extractos bioactivos de Ganoderma lucidum en condiciones in vitro y de invernadero, utilizando en cada caso un diseño completamente al azar. Todos los aislados causaron infección con una incidencia del 100% y variaciones en su severidad. Aunque todos los aislados fueron susceptibles a los tratamientos biológicos, los extractos bioactivos fueron superiores con un 100% de inhibición in vitro, así como en la reducción de infección foliar y población bacteriana en invernadero. Destacó una correlación fuerte entre población bacteriana e infección foliar (r = 0.9139**) en plantas inoculadas únicamente con el patógeno; en plantas tratadas adicionalmente con los biológicos, solo hubo una correlación débil en cada caso, sugiriendo su efecto benéfico en la supresión de X. campestris pv. vesicatoria.

scholarly journals Pengaruh Praperlakuan Dingin Antera terhadap Pembentukan Kalus Cabai Merah Keriting (Capsicum annuum L.) Pretreatment on the Callus Formation of Curly Red Chilli Pepper (Capsicum annuum L.)

2020 ◽  
Vol 4 (2) ◽  
pp. 94-105
Author(s):  
Nida Wafiqah Nabila M Solin ◽  
Dian Adriani ◽  
Zulfahmi Zulfahmi ◽  
Mokhamad Irfan ◽  
Rosmaina Rosmaina
Keyword(s):  
Anther Culture ◽  
Capsicum Annuum ◽  
Callus Formation ◽  
Chili Pepper ◽  
Haploid Plant ◽  
Cold Pretreatment ◽  
Compact Structure ◽  
Chilli Pepper ◽  
Capsicum Annuum L

The production of the double haploid plant in vitro through anther culture technique is a plant breeding technique used to obtain pure strain rapidly. A variety of pretreatment has been reported to induce callus and regenerate planlets efficiently. This study aims at describing the influence of cold anther pretreatment towards the callus formation of curly red chili pepper (Capsicum annuum L.). This research was conducted in the laboratory of Genetics and Breeding, Faculty of Agriculture and Animal Science, Universtas Islam Negeri Sultan Syarif Kasim Riau. The explants used are anther of local genotype of curly red chili pepper. The anthers are stored at low temperatures (4 °c) with different time intervals of 0, 24, 48 and 72 hours. The results showed that the percentage of highest callus formation was obtained at 24 and 72 hours length storage, ie 50%. Cold pretreatment of 72 hours anther storage results in a faster callus with a percentage of the highest yellowish white callus color of 17.65% and a compact structure. The cold pretreatment with 72 hours anther storage is the most optimal acceleration in the development stage of anther culture and induces te formation of curly red chili pepper (Capsicum annuum L.) local genotypes.

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