scholarly journals Formulations of BGA for Paddy Crop

2021 ◽  
Author(s):  
Bagampriyal Selvaraj ◽  
Sadhana Balasubramanian
Keyword(s):  
Plant Growth ◽  
Green Algae ◽  
Paddy Field ◽  
Control Plant ◽  
Alluvial Soil ◽  
Paddy Fields ◽  
Agricultural Fields ◽  
Blue Green Algae ◽  
Significant Growth ◽  
Paddy Crop

Blue green algae (BGA) are prokaryotic phototrophic organisms that can fix the atmospheric nitrogen biologically, and were directly applied as a biofertilizers in agricultural fields specifically Paddy field. Since they are having the ability to fix nitrogen, they are formulated with various adsorbents for the purpose of enhancing the crop growth along with maintaining the soil fertility and other soil factors responsible for productivity. The present study revealed that the formulations of blue green algae isolated from paddy fields of southern districts with different adsorbents like alluvial soil, sand, charcoal, and powdered paddy straw. All the adsorbents mixed with blue green algae showed significant growth when compared to the control plant. This determined that the adsorbent formulated mixed blue green algae enhanced the paddy plant growth under greenhouse condition.

scholarly journals The distribution of blue-green algae (Cyanobacteria) from the paddy fields of Patan and Karad tehsils of Satara District, Maharashtra, India

2019 ◽  
Vol 11 (14) ◽  
pp. 14862-14869 ◽  
Author(s):  
Sharada Jagannath Ghadage ◽  
Vaneeta Chandrashekhar Karande
Keyword(s):  
Distribution Pattern ◽  
Green Algae ◽  
Paddy Field ◽  
Chemical Properties ◽  
Soil Samples ◽  
Paddy Fields ◽  
Available N ◽  
Blue Green Algae ◽  
Green Algal ◽  
Physico Chemical

The distribution pattern of blue-green algae was studied from paddy fields of Patan and Karad tehsils in relation to physico-chemical properties of soil, viz., pH, electrical conductivity, organic carbon %, available N, P, and K.  Paddy field soil samples of 38 localities from Patan and 28 localities from Karad were analysed.  One-hundred-and-thirty-seven species belonging to 35 genera of 10 families from three orders were encountered from paddy field soils of both the tehsils.  Out of 66 soil samples 93.65% samples showed occurrence of unicellular, heterocystous and non heterocystous forms while 6.34% soil samples showed only non heterocystous forms.  Anabaena and Oscillatoria were found to be of common occurrence.  Significant variation was not observed in distribution pattern of blue-green algal forms in relation to physico-chemical properties during successive surveys.

Studies on the Preparation of Dried Inoculum of Blue-Green Algae and its Application in Paddy Field

1981 ◽  
pp. 356-362
Author(s):  
Huang You-xing ◽  
Fang Guang-ru ◽  
Yan Yu-zhou ◽  
Wang Ting ◽  
Su Guo-feng
Keyword(s):  
Green Algae ◽  
Paddy Field ◽  
Blue Green Algae

Isolation and taxonomy of the blue-green algae (Cyanobacteria), Nostoc and Anabaena in Kerala State, India

2020 ◽  
Vol 62 (1-2) ◽  
pp. 163-174
Author(s):  
T. S. Thilak ◽  
P. V. Madhusoodanan ◽  
N. S. Pradeep ◽  
R. Prakashkumar
Keyword(s):  
Green Algae ◽  
Pure Culture ◽  
Paddy Fields ◽  
Atmospheric Nitrogen ◽  
Nitrogen Fixing ◽  
Blue Green Algae ◽  
Heterocystous Cyanobacteria ◽  
Pure Cultures ◽  
Photosynthetic Microorganisms ◽  
Kerala State

Blue-green algae (also called cyanobacteria) are ubiquitous, pristine and pioneer photosynthetic microorganisms. Many species of cyanobacteria are capable of fixing atmospheric nitrogen and such species in wet soils are simultaneously augmenting the fertility of the soil, acting as natural bio-fertilizers. Nostoc and Anabaena are the two important genera of heterocystous cyanobacteria capable of contributing nitrogen to soil, especially in paddy fields. The major objectives of the investigation included survey, collection, isolation and pure culture of nitrogen-fixing species of Cyanobacteria in the soils of Kerala state, India. Altogether, pure cultures of 12 species of Nostoc and 5 species of Anabaena are prepared.

scholarly journals Chroococcalean blue green algae from the paddy fields of Satara District, Maharashtra, India

2020 ◽  
Vol 12 (14) ◽  
pp. 16979-16992
Author(s):  
Sharada Jagannath Ghadage ◽  
Vaneeta Chandrashekhar Karande
Keyword(s):  
Green Algae ◽  
Polar Region ◽  
Species Abundance ◽  
Algal Growth ◽  
Wide Distribution ◽  
Paddy Fields ◽  
Study Region ◽  
Blue Green Algae ◽  
Green Algal ◽  
The Family

Blue green algae are the photosynthetic prokaryotes representing a wide distribution in habitat, i.e., temperate, tropical, and polar region.  Paddy fields are the best studied aquatic ecosystems on earth which fulfill all the necessary demands required for blue green algal growth.  Blue green algal role in enhancement of paddy yield has been studied worldwide.  Sustainable utilization of an organism for community use depends on how successfully the ecology of that organism is understood.  Twenty-eight chroococcalean blue green algal taxa were recorded from the study area.  They were taxonomically investigated and found to belong to two families and 11 genera.   The first family Chroococcaceae was the largest family with 10 genera and 26 species while the second family Entophysalidaceae had only one genus and two species.  The genus Gloeocapsa from the family Chroococcaceae exhibited largest species diversity (21.42%), as well as taxa Chlorogloea fritschii of family Entophysalidaceae showed species abundance from the study area.  All heterocystous blue green algal forms are capable of fixation of atmospheric N2.  Many of the non-heterocystous or unicellular blue green algae also have the capacity of N2 fixation.  The taxonomical documentation of chroococcalean blue green algae provide information about such indigenous unicellular blue green algae which will help in the development of niche specific inoculants as biofertilizers for rice fields of the study region.  

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