Informatics Publishing Limited

A. K. Jaiswal ¹, Sunil Kumar ², Jeevanjot Kaur ³, Jasbir Kaur ²

Affiliations
1 Department of Forensic Medicine and Toxicology, All India Institute of Medical Sciences, New Delhi-110029, IN
2 Department of Ocular Biochemistry, Dr. R. P. Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi- 110029, IN
3 Department of Biotechnology, Lovely Professional University, Phagwara, Punjab- 144402, IN

Abstract

2,4-Dichlorophenoxyacetic acid, more commonly referred to as 2,4-D, is an Organochlorus poison which is one of the most widely used herbicides. Several instrumental method like Gas liquid chromatography (GLC), High performance liquid chromatography (HPLC), UV-visible Spectrophotometer, etc., are available for the separation and identification of 2,4-D, but most of them are expensive and more time consuming. So, a relatively inexpensive and less time consuming method is presented for the separation of 2,4-D i.e. Thin Layer Chromatography (TLC). This method has several advantages over the other methods such as its low cost, fewer chemicals required simultaneous analysis of large and low amount of sample. 2,4-D was extracted from the blood and then it was identified by using 20 solvent systems. The spots developed on the TLC plates were developed using Iodine vapors.

Keywords

2,4-D, Organochloro, TLC, RF , Spraying Reagent Etc.

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Jeevanjot Kaur ¹, Neelam Bhardwaj ¹

Affiliations
1 Department of Crop Improvement, CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur - 176 062, IN

Abstract

The present investigation was undertaken during rabi 2017 at Experimental Farm of the Department of Organic Agriculture and Natural Farming on the fourteen germplasm lines of chickpea to estimate the associations among various traits including their direct and indirect effects on seed yield and to identify potential genotypes under low input conditions. Correlation studies revealed that secondary branches per plant, pods per plant, nodule number, nodule fresh weight, nodule dry weight, biological yield per plant and harvest index were positively correlated with seed yield per plant at genotypic and phenotypic level whereas days to 50 per cent flowering and nitrogen fixation positively correlated with yield only at genotypic level. Secondary branches per plant, harvest index, nodule dry weight, nodule number, seeds per pod, biological yield per plant and pods per plant exhibited high direct effect implying that these traits can act as selection indices for seed yield. Among the different genotypes, best genotypes for seed yield were 18-II, 113-P, P-30-6 and DKG-964 under low input conditions.

Keywords

Low Input Conditions, Character Associations, Direct and Indirect Effects.

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Neelam Bhardwaj ¹, Jeevanjot Kaur ¹

Affiliations
1 Department of Genetics and Plant Breeding, CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur-176 062, IN

Abstract

Buckwheat is very unusual and unique multipurpose crop of mountain regions above 1800 m elevation both for grains and greens. It is very hardy crop and yields greater on stony, unproductive soil under cool climatic conditions than most of other staple crops. Buckwheat owes its importance due to presence of excellent nutrition profile with a high protein content. Buckwheat does not contain gluten, so for the people with celiac disease or gluten intolerances, buckwheat serves as an excellent dietary alternative. Although it has a great relevance in agriculture still the resources available with this crop are very limited therefore it is also known as underutilized crop. It is used as a cereal though does not resemble the cereals in growth habit, seed quality or seed composition hence it is classified as a pseudocereal. It also has many desirable health components which make it a valuable part of the human diet. Buckwheat has a unique growth habit as compared to the cereals and thus fits into a much different area of crop production due to its rapid growth and flowering habit. Buckwheat as underutilized crop is very useful as it has short growing period, hence can be used for diversifying cropping systems and enhancing human nutrition value besides contributing to the rural economy. Buckwheat population in the Himalayan region is unique, so if the farmers discontinue cultivation, there may be huge loss of the peculiar genetic resources. Thus, on-farm conservation of buckwheat germplasm is an important strategic component of crop improvement and biodiversity conservation.

Keywords

Underutilized Crop, on-Farm Conservation, Biodiversity.

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