Estimation of Parameters Responsible for the Generation of Off-Flavor in Some Indian Varieties of Soybeans

Dahuja, Anil ; Madaan, T R

Agricultural Sciences and Technology ; Biochemistry

Production of hydroperoxides and volatile aldehydes, having low olfactory thresholds by lipoxygenase (LOX) action, is an important problem in the effective use of soybeans as food ingredients. In this study, researchers examined sixteen soybean varieties forLOXactivity, thiobarbituric acid (TBA) number, a measure of lipid peroxides, and carbonyl value, an index of ketone compounds, responsible for off-flavor. Among the soybeans tested, PK416 and JS7015 had the lowest levels of ...

Kluwer Academic Publishers

2003-03-23

Article ; PeerReviewed

http://eprints.iari.res.in/128/1/2003-est._of_parameters.pdf ; Dahuja, Anil and Madaan, T R (2003) Estimation of Parameters Responsible for the Generation of Off-Flavor in Some Indian Varieties of Soybeans. Plant Foods for Human Nutrition, 58 . pp. 1-8.

Effect of Some Organic Carboxylic Acids on Nitrification of Urea in a Subtropical Soil

Kumar, Rajesh ; ., Anupama ; Parmar, Balraj S

Agricultural Chemicals

Nitrification inhibition of soil-N and applied fertilizer N is desirable as the accumulation of nitrates in soils in excess of plant needs, leads to enhanced N losses and reduced fertilizer N-use efficiency. The effect of twenty-two different organic carboxylic acids, representing aliphatic (C1 to C18), di-, chloroacetic, hippuric, benzoic and heterocyclic (furoic, nicotinic and isonicotinic), on nitrification in a semi-arid subtropical sandy loam (Typic Ustrochrepts) soil in ...

Malaysian Society of Soil Science (MSSS)

2003

Article ; PeerReviewed

http://eprints.iari.res.in/177/1/mal-j-soil-sci.pdf ; Kumar, Rajesh and ., Anupama and Parmar, Balraj S (2003) Effect of Some Organic Carboxylic Acids on Nitrification of Urea in a Subtropical Soil. Malaysian Journal of Soil Science (MJSS), 7 . pp. 1-8.

Development and assessment of green synthesis of hydrazides

Saha, Ajoy ; Kumar, Rajesh ; Kumar, Rajendra ; Devakumar, C

Agricultural Chemicals

An expeditious, solvent free one pot method for the prepara­tion of hydrazides from corresponding acids directly under microwave irradiation is developed. The method has been assessed using green chemistry measures and found superior to conventional method with higher E(environmental) factor, atom economy, atom efficiency, carbon efficiency, reaction mass efficiency.

NISCAIR PUBLICATIONS

2010

Article ; PeerReviewed

http://eprints.iari.res.in/178/1/IJC-B-2010.pdf ; Saha, Ajoy and Kumar, Rajesh and Kumar, Rajendra and Devakumar, C (2010) Development and assessment of green synthesis of hydrazides. Indian Journal of Chemistry -Section B (IJC-B), 49B . pp. 526-531.

Synthesis of Nalidixic Acid Based Hydrazones as Novel Pesticides

AGGARWAL , NISHA ; Kumar, Rajesh ; SRIVASTVA , CHITRA ; DUREJA , PREM ; KHURANA , J. M.

Agricultural Chemicals

Thirty-one substituted hydrazones of nalidixic acid hydrazide were synthesized and characterized by spectral techniques. These compounds were evaluated for various biological activities, namely, fungicidal, insecticidal, and nitrification inhibitory activities. The antifungal activity was evaluated against five pathogenic fungi, namely, Rhizoctonia bataticola, Sclerotium rolfsii, Rhizoctonia solani, Fusarium oxysporum, and Alternaria porii. They showed maximum inihibition against ...

American Chemical Society

2010

Article ; PeerReviewed

http://eprints.iari.res.in/179/1/JAFC2010.pdf ; AGGARWAL , NISHA and Kumar, Rajesh and SRIVASTVA , CHITRA and DUREJA , PREM and KHURANA , J. M. (2010) Synthesis of Nalidixic Acid Based Hydrazones as Novel Pesticides. Journal of Agricultural and Food Chemistry (ISSN: 0021-8561), 58 . pp. 3056-3061.

Schiff Bases as Potential Fungicides and Nitrification Inhibitors

AGGARWAL , NISHA ; Kumar, Rajesh ; DUREJA , PREM ; RAWAT , DIWAN S.

Agricultural Chemicals

A number of substituted Schiff bases were synthesized and characterized by 1 H NMR and mass spectrometry. These compounds were screened for antifungal activity in vitro against pathogenic fungi, namely, Sclerotium rolfsii and Rhizoctonia bataticola, and for their effect on nitrification inhibition under laboratory conditions. Maximum antifungal activity was exhibited by (2,4-dichloro- benzylidene)-(2,4,5-trichlorophenyl)-amine and (3-nitrobenzylidene)-(2,4,5-trichlorophenyl)-amine ...

American Chemical Society

2009

Article ; PeerReviewed

http://eprints.iari.res.in/180/1/jafc2009.pdf ; AGGARWAL , NISHA and Kumar, Rajesh and DUREJA , PREM and RAWAT , DIWAN S. (2009) Schiff Bases as Potential Fungicides and Nitrification Inhibitors. Journal of Agricultural and Food Chemistry, 57 . pp. 8520-8525.

Influence of Edaphic Factors on the Mineralization of Neem Oil Coated Urea in Four Indian Soils

Kumar, Rajesh ; Devakumar, C ; KUMAR, DINESH ; PANNEERSELVAM, P ; KAKKAR, GARIMA ; ARIVALAGAN, T

Agricultural Chemicals

The utility of neem (Azadirachta indica A Juss) oil coated urea as a value-added nitrogenous fertilizer has been now widely accepted by Indian farmers and the fertilizer industry. In the present study, the expeller grade (EG) and hexane-extracted (HE) neem oils, the two most common commercial grades, were used to prepare neem oil coated urea (NOCU) of various oil doses, for which mineralization rates were assessed in four soils at three incubation temperatures (20, 27, and 35 ...

American Chemical Society

2008

Article ; PeerReviewed

http://eprints.iari.res.in/181/1/jafc-2008.pdf ; Kumar, Rajesh and Devakumar, C and KUMAR, DINESH and PANNEERSELVAM, P and KAKKAR, GARIMA and ARIVALAGAN, T (2008) Influence of Edaphic Factors on the Mineralization of Neem Oil Coated Urea in Four Indian Soils. Journal of Agricultural and Food Chemistry, 56 . pp. 10183-10191.

Influence of Physicochemical Parameters of Neem (Azadirachta indica A Juss) Oils on Nitrification Inhibition in Soil

Kumar, Rajesh ; DEVAKUMAR, C ; SHARMA, V ; KAKKAR, G ; KUMAR, DINESH ; PANNEERSELVAM, P

Agricultural Chemicals

The technology for the production of neem oil coated urea (NOCU) developed by the Indian Agricultural Research Institute is in the pipeline for adaption by several Indian fertilizer industries. Use of nitrification inhibitors is one of the methods of improving the nitrogen use efficiency (NUE) of nitrogenous fertilizers in agriculture. However, standard specifications for the neem oil as a raw material of NOCU are desired. Accordingly, the present study was undertaken to evaluate ...

American Chemical Society

2007

Article ; PeerReviewed

http://eprints.iari.res.in/182/1/jafc-2007.pdf ; Kumar, Rajesh and DEVAKUMAR, C and SHARMA, V and KAKKAR, G and KUMAR, DINESH and PANNEERSELVAM, P (2007) Influence of Physicochemical Parameters of Neem (Azadirachta indica A Juss) Oils on Nitrification Inhibition in Soil. Journal of Agricultural and Food Chemistry, 55 (4). pp. 1389-1393.

Mitigating nitrous oxide emission from soil under conventional and no-tillage in wheat using nitrification inhibitors

Bhatia , A ; Sasmal , S ; Jain , N ; Pathak , H ; Kumar, Rajesh ; Singh, A

Agricultural Chemicals

No-till farming in wheat is being practiced in the rice–wheat system of the Indo-Gangetic plains of south Asia for resource conservation. No-tillage leads to mitigation of carbon dioxide emission, but may emit more nitrous oxide (N 2 O) as compared to conventional tillage reducing mitigation benefit. The aim of this study was assessment of N 2 O emission in wheat grown under conventional and no-tillage and its mitigation using two new nitrification inhibitors, viz. S-benzylisothiouronium ...

2010

Article ; PeerReviewed

http://eprints.iari.res.in/183/1/agril-ecosystems-environment.pdf ; Bhatia , A and Sasmal , S and Jain , N and Pathak , H and Kumar, Rajesh and Singh, A (2010) Mitigating nitrous oxide emission from soil under conventional and no-tillage in wheat using nitrification inhibitors. Agriculture, Ecosystems and Environment , 136 . pp. 247-253.

Total synthesis of azadirachtin: A chemical odyssey

DEVAKUMAR, C ; Kumar, Rajesh

Agricultural Chemicals

synthesis of azadirachtin

Indian Academy of Science

2008-09

Article ; PeerReviewed

http://eprints.iari.res.in/184/1/curr_sci.pdf ; DEVAKUMAR, C and Kumar, Rajesh (2008) Total synthesis of azadirachtin: A chemical odyssey. Current Science, 95 (5). pp. 573-575.

Performance of a New Superabsorbent Polymer on Seedling and Post Planting Growth and Water Use Pattern of Chrysanthemum Grown under Controlled Environment

., Anupama ; Singh, M C ; Kumar, Rajesh ; Parmar, B S ; Singh , A

Agricultural Chemicals

Water plays a critical role in nurseries for vegetative propagation of plants under greenhouse conditions. In view of the low water use efficiency in the growing medium, leaching of nutrients and hassles of frequent irrigation, an experiment was conducted to evaluate the performance of a newly developed eco-friendly crosslinked hydrogel. Observations were made on seedling growth, post planting behaviour and water use pattern of self rooted cuttings of chrysanthemum cv. Yellow ...

2007

Article ; PeerReviewed

http://eprints.iari.res.in/185/1/acta-horticulture.pdf ; ., Anupama and Singh, M C and Kumar, Rajesh and Parmar, B S and Singh , A (2007) Performance of a New Superabsorbent Polymer on Seedling and Post Planting Growth and Water Use Pattern of Chrysanthemum Grown under Controlled Environment. Acta Horticulturae, 742 . pp. 43-50.