Identifying critical limit in soil and plant for determining response of rice (Oryza Sativa L.) to silicon application in periyar vaigai command area of Tamil Nadu, India

2020 ◽  
pp. 1-9
Author(s):  
Peyandi Paraman Mahendran ◽  
Sreya U. Parvathi ◽  
Palanisamy Balasubramaniam ◽  
Muthuraman Yuvaraj ◽  
Periyakaman Chandramani
Keyword(s):  
Oryza Sativa ◽  
Tamil Nadu ◽  
Oryza Sativa L ◽  
Command Area ◽  
Critical Limit

Breeding for Improving Human Nutrition and Grain Quality through Biofortification of Traditional Land Races and Improved Cultivars in Rice (Oryza sativa L.)

2017 ◽  
pp. 126-148
Author(s):  
P. Savitha ◽  
R. Usha Kumari
Keyword(s):  
Oryza Sativa ◽  
Tamil Nadu ◽  
Oryza Sativa L ◽  
Farming Systems ◽  
Total Production ◽  
Micronutrient Deficiencies ◽  
Rice Varieties ◽  
The Family ◽  
Iron And Zinc

Rice (Oryza sativa L.) which belongs to the family poaceae, is the life and the prince among cereals as this unique grain helps to sustain two thirds of the world's population. India have traditionally been used or rice cultivation due to availability of water and conductive soil (Nadesa panic). Rice was grown in 155.30 million hectares and around 600 million tonnes of rice harvested each year globally. About 114 countries produce rice with China and India supporting 50 per cent of total production. India stands first in area under cultivation (41.85 mha) and ranks second in production, where as China ranks first in production with just half of the area. India's production is 89.13 million tonnes with a productivity of 2130 kg/ha. Among the rice producing states of India, Tamil Nadu ranks sixth in production (6.53 million tonnes) and second in productivity of 3918 kg/ha with an area of 20.16 lakh ha (Season and Crop Report, 2012). Local farmers in such farming systems retain the traditional varieties based on their knowledge of the quality of the rice varieties and their adaptation to varying agro-ecological situations created by diverse seasons and land situations (Tapasi das & Ashesh Kumar Das, 2014). Among the major micronutrient deficiencies common in rice consuming countries, iron and zinc deficiencies (“hidden hunger”), affect over three billion people worldwide, mostly in developing countries (Welch & Graham, 2004).

Effect of stubble management with biological inoculants on the growth and yield of rice (Oryza sativa L.) in rice-based cropping systems

2004 ◽  
Vol 52 (1) ◽  
pp. 105-108 ◽  
Author(s):  
V. Damodaran ◽  
P. Subbian ◽  
S. Marimuthu
Keyword(s):  
Oryza Sativa ◽  
Tamil Nadu ◽  
Dry Matter ◽  
Management Practices ◽  
Oryza Sativa L ◽  
Management Practice ◽  
Cropping Systems ◽  
Trichoderma Viride ◽  
Growth And Yield ◽  
Biological Inoculants

A field experiment was conducted at Tamil Nadu Agricultural University from July 2001 to July 2002 to study the effect of different stubble management practices using biological inoculants on the growth and yield of rice in rice-based cropping systems. inoculation with Trichoderma viride during stubble incorporation followed by the application of 120 kg N ha-1 in 4 splits produced significantly taller plants, higher LAI and dry matter, a larger number of productive tillers, longer panicles with more filled grains and higher grain yield. However, it was on par with the stubble management practice involving Trichoderma viride followed by the application of 90 kg N ha-1 in 4 splits.

NPK Fertilizers for Hybrid Rice (Oryza sativa L.) Productivity in Alfisols of Southern Districts of Tamil Nadu

2005 ◽  
Vol 4 (6) ◽  
pp. 574-576 ◽  
Author(s):  
S. Krishnakum ◽  
R. Nagarajan . ◽  
S.K. Natarajan . ◽  
D. Jawahar . ◽  
B.J. Pandian .
Keyword(s):  
Oryza Sativa ◽  
Tamil Nadu ◽  
Hybrid Rice ◽  
Oryza Sativa L ◽  
Npk Fertilizers

scholarly journals DUS Characterization of Tamil Nadu Traditional Rice (Oryza Sativa L.) Varieties

2021 ◽  
Author(s):  
J. Johnny Subakar Ivin ◽  
Y. Anbuselvam
Keyword(s):  
Oryza Sativa ◽  
Plant Breeding ◽  
Tamil Nadu ◽  
Oryza Sativa L ◽  
Block Design ◽  
Crop Improvement ◽  
Research Work ◽  
Randomized Block Design ◽  
The Right ◽  
Grain Colour

Background: Twenty-seven landraces of rice (Oryza sativa L.), collected from different parts of Tamil Nadu, were characterised according to the DUS guidelines of the Plant Varieties Protection and Farmers’ Rights Authority, GOI. Methods: Rice accessions were planted with three replications using the randomized block design (RBD) in 2019 at the Plant Breeding Farm, Department of Genetics and plant Breeding, Faculty of Agriculture, Annamalai University. Result: Observations were recorded on 49 different agro-morphological traits, out of 49 descriptors analysed, six were monomorphic, seventeen were dimorphic, thirteen were trimorphic, seven were tetramorphic and spikelet: density pubescence of lemma, 1000 grain weight of fully developed grains and decorticated grain colour showed five expressive states and lemma and palea colour reported six expressive states. Contemporary research work will be advantageous for breeders to choose the right parent for crop improvement and the researchers for genetic diversity among landraces.

Genotypic Divergence in Per Cent Zinc Derived from Variable Sources and on Zinc Uptake in Rice [Oryza sativa (L.)] as Established by Radiotracer Techniques

2017 ◽  
Vol 104 (4 - 6) ◽  
Author(s):  
Sudhalakshmi C ◽  
◽  
Meena S
Keyword(s):  
Oryza Sativa ◽  
Tamil Nadu ◽  
Oryza Sativa L ◽  
Zinc Uptake ◽  
Culture Experiment ◽  
Radiotracer Technique ◽  
Zinc Accumulation ◽  
Rice Genotypes ◽  
Radiotracer Techniques ◽  
Pot Culture

A pot culture experiment was conducted at Tamil Nadu Agricultural University, Coimbatore to establish the genotypic divergence in per cent zinc (Zn) derived from fertilizer (% Zndff) or from soil (% Zndfs) and on zinc uptake of two rice genotypes Zn -efficient Norungan and Zn –inefficient PMK 3. To assess the partitioning of Zn in the shoot and root of the genotypes, radiotracer technique was employed, in which graded levels of Zn (0.0, 12.5, 25.0, 37.5 and 50.0 kg ha-1 of ZnSO4) as 65Zn labeled ZnSO4 were applied. Per cent Zndff showed an increase by 50 % for Zn-inefficient PMK 3 than that for Norungan while reverse was the trend for % Zndfs implying the fact that Zn inefficient genotypes have the ability to use only readily available sources of Zn. Zinc uptake from fertilizer increased with increasing dose of applied zinc for PMK 3 while in Norungan it showed a peak at 25 kg ha-1 of ZnSO4 and thereafter it declined. Irrespective of the sources of zinc, root zinc accumulation was higher in PMK 3 than that in Norungan. The Zn-efficient genotype Norungan had better translocation of Zn from root to shoot than PMK 3.

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