Farmers’ participatory performance evaluation of TRY 3 rice variety in high rainfall zone of Tamil Nadu

2019 ◽  
Vol 9 (2) ◽  
pp. 7
Author(s):  
N. Thavaprakaash
Keyword(s):  
Performance Evaluation ◽  
Tamil Nadu ◽  
Rice Variety ◽  
High Rainfall ◽  
Participatory Performance

Yield and quality evaluation of ginger (Zingiber officinale Rosc) genotypes under high rainfall zone of Tamil Nadu

1970 ◽  
pp. 95
Author(s):  
R Balakumbahan ◽  
J P Joshua
Keyword(s):  
Tamil Nadu ◽  
Quality Evaluation ◽  
Zingiber Officinale ◽  
Fibre Content ◽  
Research Station ◽  
Local Strains ◽  
High Rainfall ◽  
Yield And Quality ◽  
Rainfall Region ◽  
Horticultural Research

An experiment on ginger was undertaken between April 2012 to March 2015 at Horticultural Research Station, Pechiparai with an objective to identify suitable ginger cultivar or accession with higher yield and quality attributes suitable for high rainfall zone of Tamil Nadu. Twenty four ginger genotypes, local strains and varieties were collected from different ginger growing tracts of India and evaluated for their performance in high rainfall region. Among the twenty four genotypes tested, the accession Z. O- 4 recorded higher fresh rhizome yield (22.16 ha-1) than other genotypes whereas Z. O - 6 recorded highest dry recovery per cent (22.47%). Higher oleoresin and fibre content was recorded in genotypes Z. O – 5 (9.56%) and Z . O – 17 (11.20%) respectively. 

Performance Evaluation of Public Hospitals in Tamil Nadu

2015 ◽  
Vol 17 (4) ◽  
pp. 417-424 ◽  
Author(s):  
V. Prakash ◽  
D. Annapoorni
Keyword(s):  
Performance Evaluation ◽  
Tamil Nadu ◽  
Public Hospitals

scholarly journals Risk Behavior of Farmers Cultivating Traditional Rice Varieties in Erode District, Tamil Nadu

2021 ◽  
pp. 349-357
Author(s):  
G. Kaviya ◽  
A. Vidhyavathi ◽  
S. Padma Rani ◽  
M. Nirmala Devi
Keyword(s):  
Risk Behavior ◽  
Tamil Nadu ◽  
Rice Variety ◽  
Soil Health ◽  
Risk Attitude ◽  
Farm Income ◽  
Rice Varieties ◽  
Natural Risk ◽  
Small Areas ◽  
Traditional Rice

This study investigates the risk behavior of traditional rice variety growers in Erode District of Tamil Nadu state, using Moscardi and De Janvry approach and Discriminant analysis technique. A well structured questioner was prepared and purposive random sampling was done in three blocks which covers highest cultivable area under paddy namely Gobichettipalayam, Modakurichi and Bhavani in Erode district. Each traditional rice varieties have some unique characteristics i.e some are pest and disease resistant, drought resistant, resistant to waterlogged condition and have medicinal values. The present study was done to identify the major risks, to quantify the risk attitude and to identify the factors influencing risk attitude of the traditional variety growers in Erode District. In the research it was found that the varieties preferred by farmers were Thuyamalli, Kichadi samba, Karuppukavuni, Mapillai samba,Arcaud Kichadi Samba, Poongar, Thanga Samba, Sivan Samba and few other varieties they were cultivating in small areas using organic farming method.The major risk found in cultivating traditional rice varieties were market risk followed by human labour risk, processing risk, input risk, technology risk, institutional risk, natural risk and other risks include transport risk and storage risk. The farmers were grouped into three categories i.e., risk preferrers (63.33 per cent), risk neutral (28.33 per cent) and risk averse (8.33 per cent) based on risk attitude. Once again the farmers in each group was categorized into low, medium, high risk based on nine factors namely, farmers age, major occupation, years of schooling, family size, membership in any of the farmers association, proportion of paddy area to total farm area, proportion of paddy income to total farm income, experience and adequacy of market which were influencing the risk attitude of farmers. In order to conserve the traditional rice varieties from extinction, to restore the soil health, to ensure nutritional security the farmers were willing to take risk.

Genetic diversity analysis and metabolite profiling of pharmaceutical value Indigenous rice varieties of Tamil Nadu (Oryza sativa Linn.)

2021 ◽  
Vol 23 (10) ◽  
pp. 447-464
Author(s):  
Rajalakshmi Settu ◽  
◽  
Jayanthi Balakrishnan ◽  
Sarathi Kannan Dhavamani ◽  
Manoj Srinivas Ravi ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Oryza Sativa ◽  
Tamil Nadu ◽  
Random Amplified Polymorphic Dna ◽  
Rice Variety ◽  
Resolving Power ◽  
Bioactive Metabolites ◽  
Similarity Coefficients ◽  
Rice Varieties ◽  
Indigenous Rice Varieties

Evaluation of local indigenous medicinal rice (Oryza sativa Linn.) varieties using molecular and metabolic profiling plays dynamic role for unravelling the genetic variability and restorative bio actives. In the present study, 18 screened random decamer (RAPD) markers were used to analyze genetic diversity and relationship among 25 indigenous landraces and 1 commercial rice varieties (White ponni), and GC-MS profiling of phylogenetic clusters positioned 4 random indigenous rice varieties and 1 White ponni rice were documented for exploring bioactive metabolites. Random amplified polymorphic DNA (RAPD) analysis of twenty-six rice varieties of Tamil Nadu divulges significant genetic differentiation. The primers produced total of 92 bands with size ranges from 100-8500bp out of 74 were polymorphic bands indicating 80% polymorphism. The mean values of RAPD for polymorphism information content (PIC) of 0.268, effective multiple ratio (EMR) of 23.38, marker index (MI) of 7.39 and the resolving power (Rp) of 4.34. The primer OPA-02, OPD-08, OPF-13 produced maximum number of bands (8), OPAA-07 produced minimum number of band (2). The UPGMA dendrogram were constructed based on Jaccard’s similarity coefficients. The dendrogram resolved the indigenous rice varieties into 3 main clusters and 3 monoclades ranged from 0.467 to 0.860, commercial rice variety shows marginal ungrouped position of 1. In the 3-main clustering, based GC-MS profilling (methanol and acetone rice bran extracts) of Karuppu Kavuni, Karuthakar, Kottara samba, Kaivara samba and ungrouped position of White ponni revealed 88 distinctive bioactive metabolites. And profiling results substantiate that the traditional rice varieties hold promising therapeutic metabolites for sedentary lifestyle disorders.

Comparative studies of mymarid diversity from three different zones of paddy ecosystem in Tamil Nadu, India

ENTOMON ◽  
2019 ◽  
Vol 44 (3) ◽  
pp. 173-182 ◽  
Author(s):  
J. Alfred Daniel ◽  
K. Ramaraju ◽  
A. Rameshkumar
Keyword(s):  
Tamil Nadu ◽  
Wiener Index ◽  
Diversity Indices ◽  
Alpha And Beta Diversity ◽  
High Rainfall ◽  
Paddy Ecosystem ◽  
Species Similarity ◽  
Western Zone ◽  
Cauvery Delta ◽  
Rice Ecosystem

Surveys were conducted to explore the mymarid fauna from three different rice growing zones viz., western zone, Cauvery delta zone and high rainfall zone in Tamil Nadu during 2015-16. In the present study, 92 mymarid parasitoids comprising of 8 species under 7 genera viz., Anagrus sp., Anaphes sp., Camptoptera sp., Dicopus longipes (Subba Rao), Lymaenon delhiensis Narayanan and Subba Rao, Lymaenon munnarus Mani and Saraswat, Mymar pulchellum Curtis and Ptilomymar dictyon Hayat and Anis were collected. Alpha and beta diversity were computed for the three zones and the diversity indices (Simpson’s index, Shannon-Wiener index, Pielou’s index) revealed high rainfall zone as the most diverse zone, while Cauvery delta zone being the least diverse. Dicopus longipes is found to the predominant species in rice ecosystem. Jaccard’s index of species similarity comparison revealed 42.5 per cent similarity between western and Cauvery delta zones and 62.5 per cent similarity between high rainfall and Cauvery delta zones and 62.5 per cent similarity between high rainfall and western zones. Correspondence analysis and Bray-curtis cluster analysis were also done to understand the diversity assemblage of the mymarids that were collected.

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