scholarly journals Seedling Growth of Cassia tora, Cassia occidentalis and Cassia sophera in Relation to Salinity and pH

2015 ◽  
Vol 5 (7) ◽  
Author(s):  
Sabiha Sultana ◽  
A.K.M. Nazrul Islam
Keyword(s):  
Seedling Growth ◽  
Cassia Tora ◽  
Cassia Occidentalis

scholarly journals Allelopathic potential and systematic evaluation of secondary compounds in extracts from roots of Canavalia ensiformis by capillary electrophoresis

2007 ◽  
Vol 32 (4) ◽  
pp. 13-18 ◽  
Author(s):  
S. Santos ◽  
M. L. L. Moraes ◽  
M. O. O. Rezende
Keyword(s):  
Capillary Electrophoresis ◽  
Secondary Compounds ◽  
Systematic Evaluation ◽  
Mimosa Pudica ◽  
Cassia Tora ◽  
Allelopathic Potential ◽  
Cassia Occidentalis ◽  
Canavalia Ensiformis ◽  
Organic Extracts ◽  
Seeds Germination

Organic extracts were obtained from roots of Canavalia ensiformis and evaluated for allelopathic potential on the germination of the weed seeds: Mimosa pudica, Cassia tora and Cassia occidentalis showing a strong allelopathic potential. After that, a systematic study of these crude extracts was made using specific protocols developed in capillary electrophoresis (CE) in order to determine some classes of secondary metabolites. Capillary electrophoresis protocols were highly specific, which makes it possible to identify 5 classes of compounds using the same crude extract samples and analyze them fartly. Some of the compounds identified show activity in the inhibition of seeds germination.

scholarly journals Potencial alelopático e identificação de compostos secundários em extratos de calopogônio (Calopogonium mucunoides) utilizando eletroforese capilar

2011 ◽  
Vol 36 (2) ◽  
pp. 51-68 ◽  
Author(s):  
S. Santos ◽  
M.L.L Moraes ◽  
M.O.O. Rezende ◽  
A.P.S Souza Filho
Keyword(s):  
Mimosa Pudica ◽  
Cassia Tora ◽  
Cassia Occidentalis ◽  
Calopogonium Mucunoides

Neste trabalho avaliou-se o potencial alelopático de extratos orgânicos obtidos a partir das folhas de Calopogonium mucunoides sobre a germinação de sementes de algumas plantas daninhas comumente encontradas em áreas de pastagens cultivadas da Amazônia brasileira, as quais causam grandes danos à produtividade: Cassia tora (mata-pasto), Mimosa pudica (malícia) e Cassia occidentalis (fedegoso). Compostos secundários foram identificados e quantificados nos extratos brutos utilizando eletroforese capilar. Após identificar e quantificar os compostos presentes nos extratos realizaram-se novos bioensaios com os padrões dos compostos identificados a fim de verificar se os mesmos poderiam atuar como inibidores na germinação das sementes das plantas daninhas em estudo. Calopogonium mucunoides apresentou potencial alelopático o qual variou com a espécie de planta daninha estudada. Os protocolos desenvolvidos utilizando eletroforese capilar se mostraram eficientes e bastante específicos, sendo possível a separação e identificação de 5 classes de compostos nos extratos brutos sem necessidade de "clean up" ou fracionamento dos mesmos, com análises rápidas (em menos de 20 minutos) e baixas quantidades de solventes utilizadas quando comparadas aos métodos tradicionais de análises. Vários dos compostos identificados apresentaram potencial de inibição de germinação nas sementes estudadas, sendo malícia a mais sensível, os bioensaios também indicaram certo efeito sinérgico ao utilizar a mistura de compostos.

scholarly journals POTENCIAL ALELOPÁTICO E IDENTIFICAÇÃO DE COMPOSTOS SECUNDÁRIOS EM EXTRATOS DE CALOPOGÔNIO (Calopogonium mucunoides) UTILIZANDO ELETROFORESE CAPILAR

2017 ◽  
Vol 36 (2) ◽  
pp. 52
Author(s):  
S. Santos ◽  
M. L. L. Moraes ◽  
M. O. O. Rezende ◽  
A. P. S. Sousa Filho
Keyword(s):  
Mimosa Pudica ◽  
Cassia Tora ◽  
Cassia Occidentalis ◽  
Calopogonium Mucunoides

Neste trabalho avaliou-se o potencial alelopático de extratos orgânicos obtidos a partir das folhas de Calopogonium mucunoides sobre a germinação de sementes de algumas plantas daninhas comumente encontradas em áreas de pastagens cultivadas da Amazônia brasileira, as quais causam grandes danos à produtividade: Cassia tora (mata-pasto), Mimosa pudica (malícia) e Cassia occidentalis (fedegoso). Compostos secundários foram identificados e quantificados nos extratos brutos utilizando eletroforese capilar. Após identificar e quantificar os compostos presentes nos extratos realizaram-se novos bioensaios com os padrões dos compostos identificados a fim de verificar se os mesmos poderiam atuar como inibidores na germinação das sementes das plantas daninhas em estudo. Calopogonium mucunoides apresentou potencial alelopático o qual variou com a espécie de planta daninha estudada. Os protocolos desenvolvidos utilizando eletroforese capilar se mostraram eficientes e bastante específicos, sendo possível a separação e identificação de 5 classes de compostos nos extratos brutos sem necessidade de “clean up” ou fracionamento dos mesmos, com análises rápidas (em menos de 20 minutos) e baixas quantidades de solventes utilizadas quando comparadas aos métodos tradicionais de análises. Vários dos compostos identificados apresentaram potencial de inibição de germinação nas sementes estudadas, sendo malícia a mais sensível, os bioensaios também indicaram certo efeito sinérgico ao utilizar a mistura de compostos.

Assessment of Phytotoxicity of Parthenin

2007 ◽  
Vol 62 (5-6) ◽  
pp. 367-372 ◽  
Author(s):  
Daizy R. Batish ◽  
Harminder Pal Singh ◽  
Ravinder K. Kohli ◽  
Shalinder Kaur ◽  
Dinesh B. Saxena ◽  
...  
Keyword(s):  
Seedling Growth ◽  
Root Hairs ◽  
Dry Weight ◽  
Significant Loss ◽  
Root Tip ◽  
Cassia Occidentalis ◽  
Chlorophyll Pigments ◽  
Weedy Species ◽  
Series Of Experiments ◽  
Tip Cells

Phytotoxicity of parthenin, a sesquiterpene lactone, was evaluated against four weedy species (Amaranthus viridis, Cassia occidentalis, Echinochloa crus-galli, and Phalaris minor) through a series of experiments conducted under laboratory or greenhouse conditions to assess its herbicidal potential. Under laboratory conditions, parthenin (0.5 - 2 mm) severely reduced seedling growth (root and shoot) and dry weight of test weeds. However, the effect was greater on root growth. Parthenin (1 mm) suppressed the mitotic activity in the onion root tip cells that could possibly be responsible for the reduction in seedling growth. Both pre- and post-emergent application of parthenin caused a significant loss of chlorophyll pigments and affected photosynthesis. Parthenin (≥1 mm) caused an excessive electrolyte leakage in the plant tissues which was light-dependent. The root inhibition was associated with swelling and blackening of the root tip, shriveling and damage to the epidermal tissue and non-formation of root hairs. The study concludes that parthenin possesses weed-suppressing potential (both pre- and post-).

scholarly journals Effect of aqueous extract of Mikania micrantha Kunth on seed germination and seedling growth of Cassia tora L.

2016 ◽  
Vol 6 (1) ◽  
pp. 45-46
Author(s):  
Kishor Kumar Mishra
Keyword(s):  
Seed Germination ◽  
Aqueous Extract ◽  
Seedling Growth ◽  
Leaf Extract ◽  
Dry Weight ◽  
Cassia Tora ◽  
Mikania Micrantha

The order of inhibitory effectiveness of various parts of Mikania micrantha on seed germination and seedling growth of Cassia tora was leaf >stem> inflorescence. The dry weight of C. tora seedlings was lowest under 25% concentration of leaf extract, and highest under treatment with 5% concentration of inflorescence extract of M. micrantha.

Enhancement of anthraquinone production in Cassia tora root cultures using medium manipulation technique

Planta Medica ◽  
2013 ◽  
Vol 79 (13) ◽  
Author(s):  
A Sakunphueak ◽  
P Panichayupakaranant ◽  
W Kaewnam
Keyword(s):  
Root Cultures ◽  
Cassia Tora

IMPACT OF FERTILIZERS APPLICATION ON SEED GERMINATION AND SEEDLING GROWTH OF VIGNA RADIATA

2018 ◽  
Vol 24 (2) ◽  
Author(s):  
SUPRIYA DIXIT ◽  
R. K. GUPTA
Keyword(s):  
Seed Germination ◽  
Leaf Area ◽  
Seedling Growth ◽  
Vigna Radiata ◽  
Agricultural Research ◽  
Dry Weight ◽  
Fertilizer Application ◽  
Research Field ◽  
Chemical Fertilizer ◽  
Seedling Length

Currently, a real challenge for the workers in the agricultural research field is to stop or reduce the use of expensive agrochemicals/ chemical fertilizers which are hazardous to the environment as well as human health. Present study was aimed to improve the growth and obtain optimum yield of Vigna crop with eco-friendly, non-toxic way and to reduce the use of agrochemical/chemical fertilizer application in agricultural activities. A pot experiment was conducted to study the effect of chemical fertilizer (DAP) and biofertilizer ( Rhizobium strain) separately and in combination on seed germination and seedling growth (at 30 days) based on morphological parameters such as seedling length (cm), fresh weight (g), dry weight (g) and leaf area (cm)2 of Vigna radiata (L.) Wilczek. After one month (30 Days) observations, it was found that seedling length, fresh and dry weights and leaf area were maximum in T4 and minimum in T15, T7 and T8 favored improved seedling length and leaf area whereas T7, T8, and T9 favored improved fresh and dry weights as compared to control.

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