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Ramamoorthy, K.
- Approaches on Herbicide-Herbicde Interaction-A Review
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1 Department of Agronomy, Tamil Nadu Agricultural University - Coimbatore - 641 003, IN
1 Department of Agronomy, Tamil Nadu Agricultural University - Coimbatore - 641 003, IN
Source
Agricultural Reviews, Vol 30, No 1 (2009), Pagination: 32-39Abstract
Herbicide mixtures are commonly used in agriculture to broaden the spectrum of weed control. The interactions or the combinations may be desirable or undesirable. Acetachlor at 150g/ha applied and ready mix application of anilofos and ethoxysulfuron at 780 g/ha provide effective control of weeds with higher grain yield. Tank mix application of metribuzin with isoproturon at 1.0 kg/ha, clodinofop (60g/ha) and fenoxyprop (120g/ha) applied at 3 leaf stage marginally increase the mortality against the resistant biotypes and susceptible biotypes of Phalaris minor with the corresponding increase in the dose of metribuzin. Tank mixing of MON 12000, CGA 152005 with atrazine or bentazon reduces the weed control of these post-emergence herbicides, in controlling velvetleaf. Chlorimuron is compatible with glyphosate, but aciflurofen antogonise glyphosate activity. Thus the interaction effect of herbicide molecule differed.
- BT Cotton Hybrids in India - A Review
Abstract Views :98 |
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Authors
Affiliations
1 Department of Spices and Plantation Crops, Tamil Nadu Agricultural University, Coimbatore - 641 003, Tamil Nadu, IN
1 Department of Spices and Plantation Crops, Tamil Nadu Agricultural University, Coimbatore - 641 003, Tamil Nadu, IN
Source
Agricultural Reviews, Vol 29, No 4 (2008), Pagination: 271-280Abstract
Cotton 'White Gold' is an important commercial crop. The major threat to cotton production is its higher susceptibility to pests especially bollworms. Globally, the maximum amount of pesticides was consumed by cotton alone. But nowadays, chemical pesticides miserably failed to check the menace of bollworms in cotton system. Bollworms have developed resistance to most of the potent pesticides. To combat this problem, transgenic Bt cotton has been developed which evokes inbuilt resistance in host and offers protection against bollworms. Application of insecticides in Bt cotton should be based on scouting and thresholds. Bt endotoxin, the insecticidal crystal cry protein efficiency differs on various factors like varieties, season, crop age, environment and management practices like amount of nitrogenous fertilizers applied etc. Bt cotton was found to be safer to human and animal kind.- Weeds and Weed Control in Dryland Agriculture - A Review
Abstract Views :118 |
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Authors
Affiliations
1 Directorate of Soil and Crop Management Studies, TNAU, Coimbatore- 641003, IN
2 Dryland Agriculture Institute, West Texas, US
1 Directorate of Soil and Crop Management Studies, TNAU, Coimbatore- 641003, IN
2 Dryland Agriculture Institute, West Texas, US
Source
Agricultural Reviews, Vol 25, No 2 (2004), Pagination: 79-99Abstract
Most of the food and fibre production of the world is achieved under rainfed conditions. Among the various agronomic practices that could bring about immediate positive results in dryland areas, optimum and effective weed control is the first and foremost management practice. Hence, in this paper, an attempt has been made to review the weeds of dryland crops and cropping systems, factors influencing weed flora in dryland regions, critical period of crop weed competition, weed management in major dryland crops and cropping systems, tillage and weed management in dryland agriculture and future research priorities in the field of weed management in dryland agriculture.- Sustainable Integrated Farming Systems for Drylands - A Review
Abstract Views :113 |
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Authors
Affiliations
1 Department of Agronomy, Tamil Nadu Agricultural University, Coimbatore - 641 003, IN
1 Department of Agronomy, Tamil Nadu Agricultural University, Coimbatore - 641 003, IN
Source
Agricultural Reviews, Vol 24, No 3 (2003), Pagination: 204-210Abstract
The traditional cropping leads to a high degree of uncertainty in yield, income and employment under dryland conditions. The integrated farming system approach introduces a change in the farming techniques for maximum productivity in farming by optimal utilisation of resources. Judicious mix of agricultural crops and other enterprises suited to the given agroclimatic condition and socio-economic status of the farmer would improve the prosperity in the farming. The present day trend towards sustainable agriculture encourages the utilisation of residue and waste materials of crop and its allied activities for enrichment of soil nutrients, water retention to protect the enviromnent over a long period. In this treatise, relevant literature on farming systems research, contribution of different components in the farming system under drylands are briefly reviewed.- Integrated Nitrogen Management through Grain Legumes and Green Manures in Irrigated Tropical, Rice Based Cropping Systems - A Review
Abstract Views :110 |
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Authors
Affiliations
1 Department of Agronomy, Tamil Nadu Agricultural University, Coimbatore-641003, IN
2 Division of Agronomy, Directorate of Rice Research, Hyderabad - 500 030, Andhra Pradesh, IN
1 Department of Agronomy, Tamil Nadu Agricultural University, Coimbatore-641003, IN
2 Division of Agronomy, Directorate of Rice Research, Hyderabad - 500 030, Andhra Pradesh, IN
Source
Agricultural Reviews, Vol 22, No 3&4 (2001), Pagination: 141-162Abstract
This review article consolidates more information with special reference to effect of legumes and green manures integration on rice based cropping systems of the Tropics both in normal soil as well as problem soils. The factors influencing the nitrogen dynamics in soil by addition of food legumes and green manures besides their influence on the rice production and productivity in lowland irrigated conditions are also briefly reviewed because nitrogen is the most limiting nutrient in rice production world wide and inclusion of legumes and green manures with their wider adaptability to different rice cultures and their ability to fix nitrogen offer high scope to increase and sustain productivity and income in rice based cropping systems.- Effect of Short Duration Grain Legumes on Productivity of Succeeding Finger Millet under Rainfed Conditions
Abstract Views :43 |
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Authors
Affiliations
1 Department of Agronomy, Tamil Nadu Agricultural University, Coimbatore - 641003, IN
1 Department of Agronomy, Tamil Nadu Agricultural University, Coimbatore - 641003, IN
Source
Agricultural Science Digest, Vol 24, No 2 (2004), Pagination: 133-135Abstract
Field experiments were conducted during kharif and rabi 2000 to study the influence of short duration grain legumes (cowpea and greengram) on the productivity of succeeding finger millet under rainfed conditions. Results revealed that maximum dry matter production and vegetable yield was obtained in cowpea (CO 2), as compared to greengram (Pusa bold). In succeeding finger millet crop, higher grain and straw yield were obtained when the haulms of previous cowpea were incorporated after harvest for vegetable purpose. Transplanting of finger millet with phosphorus application recorded higher grain yields as compared to other treatments.- Efficacy of Some Indigenous Plant Products against Pulse Beetle Callosobruchus spp on Cowpea (Vigna unguiculata. L. Hepper.) Seeds
Abstract Views :57 |
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Authors
Affiliations
1 Department of Seed Science and Technology, Agricultural College and Research Institute, Madurai-625 104, IN
1 Department of Seed Science and Technology, Agricultural College and Research Institute, Madurai-625 104, IN
Source
Agricultural Science Digest, Vol 35, No 1 (2015), Pagination: 74-77Abstract
Herbal leaf powders of Ocimum basilicum, Vitex negundo and Azadirachta indica each at 10 percent (w/w) concentration were mixed with cowpea seeds and stored under ambient storage condition in cloth bags. The efficacy of Azadirachta and Vitex were the highest in suppressing oviposition of Callosobruchus spp and maintaining viability of seeds in cowpea cv. CO 6 up to 6 months and could be recommended as a better alternative to the chemical seed treatments.Keywords
Azadirachta, Callosobruchus, Ocimum, Oviposition, Vitex.- Influence of Herbal Pelleting on Physiological and Yield Attributes in Redgram [Cajanus cajan (L.) Millsp.]
Abstract Views :37 |
PDF Views:0
Authors
Affiliations
1 Department of Seed Science and Technology, Agricultural College and Research Institute, Madurai (T.N.), IN
1 Department of Seed Science and Technology, Agricultural College and Research Institute, Madurai (T.N.), IN
Source
Advance Research Journal of Crop improvement, Vol 2, No 2 (2011), Pagination: 174-177Abstract
An experiment was conducted to gain information on the field performance of pelleted seeds using botanical viz., vitex and calotropis leaf powder with acacia and maida gum as adhesive in redgram cv. APK 1. Seed pelleting with Calotropis (100 g/kg of seeds) using maida gum (15%) followed by drying recorded higher physiological and yield parameters.Keywords
Botanicals, Pelleting, Dry Weight, Adhesive, Relative Growth Rate, Leaf Area Index, Redgram.- Production And Partial Purification of α-amylase Producing Streptomyces sp. SNAJSM6 Isolated From Seaweed Sargassum myriocystum J. Agardh
Abstract Views :3 |
PDF Views:0
Authors
Affiliations
1 Centre for Advanced Studies in Botany, University of Madras, Guindy Campus, Chennai, Tamil Nadu, IN
1 Centre for Advanced Studies in Botany, University of Madras, Guindy Campus, Chennai, Tamil Nadu, IN
Source
Indian Journal of Geo-Marine Sciences, Vol 48, No 8 (2019), Pagination: 1245-1251Abstract
The bacteria Streptomyces sp. was isolated from the seaweed Sargassum myriocystum that was collected from Kilakarai, Ramanathapuram District, Tamil Nadu. Among the isolates, the SNAJSM6 produced the maximum content of extracellular α-amylase, which was conformed by starch hydrolysis and identified as Streptomyces sp. SNAJSM6. The culture optimization studies for augmented enzyme production in the Streptomyces sp. were conducted under different physicochemical parameters, such as pH, temperature, and carbon and nitrogen sources for α-amylase production. The maximum α- amylase production was recorded on the third day of incubation (56U/ml) by Streptomyces sp. SNAJSM6. The Streptomyces sp. optimized α-amylase enzyme production was recorded at pH 7.0 and temperature 30 °C, which was 1.86 fold higher than the unoptimized culture broth of the Streptomyces sp. The Streptomyces sp. α-amylase enzyme was partially purified and its molecular weight was found to be 44 kDa by using SDS-PAGE. Among the isolates that were screened, Streptomyces sp. SNAJSM6 is a potential candidate for maximum production of α-amylase. Further, it showed excellent antibacterial activity against selected human pathogens.Keywords
Sargassum myriocystum, Streptomyces Sp., α-amylase, Antibacterial Activity.Full Text
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