scholarly journals Phenological growth stages and BBCH-identification keys of Chilli (Capsicum annuum L., Capsicum chinense JACQ., Capsicum baccatum L.)

Author(s):  
Falko Feldmann ◽  
Arsène Rutikanga

Abstract Since a decade, the need for experience transfer between production regions of chillies (Capsicum spp.) is developing worldwide. In order to ease communication, we propose here a new description and codification of phenological growth stages of Capsicum spp. according to a modified BBCH scale. In contrast to older descriptions basing on 2-digit macro-stages and 3-digit micro-stages, we use the meso-stages as own, independent codification element. Doing so, it was possible to combine qualitative and quantitative changes in growth stages within the 3-digit system.

Author(s):  
O. T. Umoh ◽  
V. E. Uyoh ◽  
A. P. Ette ◽  
E. E. Eyibio ◽  
A. O. Oghenekevwe ◽  
...  

The results of this research showed significant difference in the phytochemical contents of Capsicum baccatum L. (Yellow), Capsicum baccatum L. (Red), Capsicum Chinese Jacq., Capsicum annuum L. (Cayenne), Capsicum annuum L. (Bell) in terms of total Saponin, Tanins and Cardiac glucosides. The concentrations of flavonoids, Alkaloids and Anthraquinones were similar in the five species of Capsicum studied and it could be attribute to cultivation, ripeness, storage and soil salinity, among other factors. Reducing power assay is one of established method for evaluation of antioxidant potential of a test sample which was employed in the course of this work. Basically, it involves reduction of Fe3+ into Fe2+ with the formation of Perl’s Prussian blue colour complex wherein absorbance is read at 700 nm. This reducing ability varies with respect to various concentrations of antioxidant present in the samples. The Different fruit composition of the five pepper species indicates that apart from the evident morphological differences in terms of fruit shape and appearance, they also differ in their content of phytochemicals.


2018 ◽  
Vol 5 (9) ◽  
pp. 239-247
Author(s):  
Judieldo de Morais Lima ◽  
Fabrício Soares Moreira ◽  
João Paulo de Sousa ◽  
Francisca Maria Barbosa ◽  
Azenate Campos Gomes ◽  
...  

A pesquisa teve como objetivo caracterizar parâmetros físicos de frutos e sementes de espécies e variedades doces e picantes de pimentas produzidas na região do Cariri Ocidental paraibano. Foram selecionados frutos de espécies e variedades doces e picantes de pimentas: pimenta-jalapenho (Capsicum annuum var. annuum L.), pimentão (Capsicum annuum L.), chapeu de bispo (Capsicum baccatum L. var. pendulum (Willd.) Eshbaugh), dedo de moça (Capsicum baccatum L. var. umbilicatum (Vell.) Hunz. & Barboza), dulce larga (Capsicum frutescens L.). As plantas foram produzidas no viveiro de mudas do Laboratório de Ecologia e Botânica pertencente ao Centro de Desenvolvimento Sustentável do Semiárido da Universidade Federal de Campina Grande (7o 39' 34,84'' S e 36o 53' 35,96'' W; 538 m de altitude). Foram coletados todos os frutos das plantas após três meses do plantio, que foram analisados quanto ao comprimento longitudinal, diâmetro transversal, massa fresca dos frutos e quantidade de sementes por fruto. Utilizou-se balança analítica com precisão de 0,001 g e paquímetro digital com precisão de 0,01 mm. Os dados foram analisados em Planilha Eletrônica Excel 2013 da Microsoft. O número de sementes por fruto dentro da mesma espécie ou variedade mostrou alta variabilidade, mesmo quando relacionado ao tamanho do fruto. Quanto à massa fresca dos frutos, os maiores valores foram registrados para o pimentão, dulce larga e chapéu de bispo, que produziram também o maior quantitativo de sementes. De modo geral, os dados obtidos contribuíram com informações básicas para a caracterização de frutos e sementes dos diferentes tipos de pimentas estudadas, se constituindo num importante indicador da sua produtividade e desenvolvimento.


Zuriat ◽  
2015 ◽  
Vol 16 (2) ◽  
Author(s):  
Rinda Kirana ◽  
Ridwan Setiamihardja ◽  
Nani Hermiati ◽  
A. H. Permadi

2021 ◽  
Vol 9 (4) ◽  
pp. 823
Author(s):  
Himanshu Arora ◽  
Abhishek Sharma ◽  
Satyawati Sharma ◽  
Farah Farhanah Haron ◽  
Abdul Gafur ◽  
...  

Capsicum annuum L. is a significant horticulture crop known for its pungent varieties and used as a spice. The pungent character in the plant, known as capsaicinoid, has been discovered to have various health benefits. However, its production has been affected due to various exogenous stresses, including diseases caused by a soil-borne pathogen, Pythium spp. predominantly affecting the Capsicum plant in younger stages and causing damping-off, this pathogen can incite root rot in later plant growth stages. Due to the involvement of multiple Pythium spp. and their capability to disperse through various routes, their detection and diagnosis have become crucial. However, the quest for a point-of-care technology is still far from over. The use of an integrated approach with cultural and biological techniques for the management of Pythium spp. can be the best and most sustainable alternative to the traditionally used and hazardous chemical approach. The lack of race-specific resistance genes against Pythium spp. can be compensated with the candidate quantitative trait loci (QTL) genes in C. annuum L. This review will focus on the epidemiological factors playing a major role in disease spread, the currently available diagnostics in species identification, and the management strategies with a special emphasis on Pythium spp. causing damping-off and root rot in different cultivars of C. annuum L.


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