Survey of Underutilised Leafy Vegetables in South Karnataka of India to Attain Nutritional Security
Gowthami R1, Prakash BG2*, Raghavendra KV1, Brunda SM3 and Niranjana Kumara B4
1Agricultural College & Research Institute, India
2Department of Crop Improvement and Biotechnology, University of Horticultural Sciences, India
3Kerala Agricultural University, India
4University of Agricultural and Horticultural Sciences (UAHS), India
Submission: June 03, 2016; Published: June 24, 2016
*Corresponding author: Prakash BG, Professor and Head, Department of Crop Improvement and Biotechnology, College of Horticulture, University of Horticultural Sciences, Mysore-571130, India, Tel: 9449233084; Email:prakash.banavadi@gmail.com
How to cite this article: Gowthami R, Prakash B, Raghavendra KV, Brunda SM, Niranjana K B. Survey of Underutilised Leafy Vegetables in South Karnataka of India to Attain Nutritional Security. Agri Res & Tech: Open Access J. 2016; 1(5): 555575. DOI: 10.19080/ARTOAJ.2016.01.555575
Abstract
Plants are gifts of God for mankind. In India most rural inhabitants depend on wild edible plants to meet their additional food requirements and to attain household food security. India, being blessed with diverse climatic conditions, has a wide array of edible green leafy vegetables (GLV) some of which are locally grown and utilized from ancient periods as source of food as they contain many nutrients and minerals which can nourish the ever growing human population and helps to attain nutrient security. Many of these greens are growing as weeds in the crop fields which are resilient, adaptive and tolerant to adverse climatic conditions and need less investment and don’t require much investment, hence it is described as ‘poor man’s vegetables’. Although, they can be raised at lower management costs even on poor marginal lands, they have remained underutilized due to lack of awareness and popularization of technologies for utilization. It is essential that the locally available GLV, which are inexpensive and easy to cook, be used in the diets to eradicate micronutrient malnutrition and also to prevent the degenerative diseases. Therefore, the present study was undertaken with the objective of exploring potentialities of the lesser known underutilized green leafy vegetables in different districts viz., Kolar, Chickballapura, Mysore, Davanagere, Shimoga of Karnataka state, South India to create awareness among the public and for encouraging further research by scientific community. During the present study, 45 species of green leafy vegetables such as Amaranthus sp., Cleome sp., Solanum sp. were documented and tabulated as per botanical name, family, common name, and local name and also mentioned their mode of consumption.
Keywords: Underutilized; Leafy vegetable; Nutrition security
Introduction
Plants are gifts of God for mankind. India is a country with rich in biodiversity. There are 45,000 species of wild plants [1], out of which 9,500 species are ethno-botanically important species [2]. Of these 7,500 species are in medicinal use for indigenous health practices. About 3,900 plant species are used by tribal people as food (out of which 145 species comprise of root and tubers, 521 species of leafy vegetables). India is blessed with a vast resource of greeneries and wide array of Green Leafy Vegetables. Green leafy vegetables are used since ancient periods as source of food as they contain many nutrients and minerals which are helpful in maintaining human health. Leafy vegetables are naturally available important constituent of Nutraceuticals and are also called as pot herbs, greens, vegetable greens, leafy greens or salad greens. The leafy vegetables are said to tone up the energy and vigour in human being. Though leafy vegetables are low in calories and fat but high in dietary fibre, iron, Phosphorous calcium and magnesium content and very high in photochemical such as vitamin (A, B, C and K), carotenoids, lutein, folate, magnesium. It has been found that the person who consumes less amount of vegetables suffer from malnutrition, which in turn hampers the immune system.
The World Health Organization (WHO) recommends a daily intake of more than 400g of vegetables per person to protect against diet related chronic diseases. India secured second position in the world next to china in vegetable production. Although, 175 major and minor vegetable crops are grown in India including 82 leafy vegetables, there is a challenge to achieve the target of 160 million tons of vegetables to fulfil the recommended requirement by 2020’. Green leafy vegetables are the cheapest of all the vegetables within the reach of poor man, being richest in their nutritional value. Green Leafy Vegetables are sources of nutrients and micronutrients [3] such as iron and vitamin C, which are lacking from staple foods and are primary sources of lutein and zeaxanthine, which have been identified as important eye protective agents. Also contains natural antioxidants such as tocopherols, vitamin C and polyphenols which are necessary in neutralizing free radicals which are known human chemical hazards. These green unexposed foods are fond to possess ample amount of vitamins and minerals Sheela et al. [4]. They owe the potential to nourish the ever increasing human population. Many of these plant species are found resilient, adaptive and tolerant to adverse climatic conditions, although they can be raised at lower management costs even on poor marginal lands. Besides other crops, cultivation of these vegetables will not only increase food production but also provide balanced nutrition, food security, health security and poverty alleviation to the deprived section. So, these leafy vegetables have the potential to become an important alternative to usual agricultural crops.
Material and Methods
Study area
The study was conducted in different villages of districts viz., Kolar, Chickballapura, Mysore, Davanagere, Shimoga of Karnataka state, South India.
Aim of the survey
The main aim of the survey was to gather information about the different leafy vegetables plant species which are used by the local people.
Data collection
The data was collected regarding different green leafy vegetables used by the farmers and information was obtained by local farmers through a combination of methods like personal contact, observation and group discussions [5]. Simple questionnaire schedule was developed to elicit the information regarding the various aspects of underutilized greens used in the culinary purpose by these rural people. Frequent field visits were taken up for a period of one month. Collected data was confirmed and finalized by repeated visits to the same locality and also to different localities. Local people accompanied author/s during field visits. The specimens were identified using fresh as well as herbarium materials with taxonomic keys.
Result and Discussion
Nutrition is basic human need and a prerequisite for healthy life. A proper diet is essential from very early age of life for growth, development and active life. So that consumers are looking for variety in their diets, and are aware of the health benefits of fresh fruits and vegetables of special interest are food sources rich in antioxidant vitamins, Calcium (Ca), Magnesium (Mg), and Potassium. On the other hand, with few exceptions, fruits and leafy vegetables are believed to occupy a mode rest place as a source of trace elements due to their high water content. Green Leafy Vegetables (GLVs) occupy an important place among the food crops as these provide adequate amounts of vitamins and minerals for humans. Leafy Vegetables are herbaceous, shrub, or tree origin where leaf is the edible part [6]. It is well known that the dark green coloured leafy vegetables are richer in nutrients content than lighter coloured vegetables. It is observed that knowledge of wild leafy vegetables may be lost in the near future, unless efforts are made to educate younger generations about their importance [7]. They could be used as an important source of nutrients during the pre-cropping season, before traditional crops are available for human consumption. It is recommended that agronomic investigations into cultivation of wild leafy vegetables that are adapted to rural areas where underutilized leafy vegetables are not widely available needs to be undertaken. Those studies could contribute significantly in government policies to improve food security in rural areas, and in the improvement of wild vegetable status, whose potential as sources of nutrition is currently undervalued.
The study provides empirical evidence about diversity of Green leafy vegetables (Figure 1). The study area is floristically rich and includes various useful wild leafy vegetable species. The present survey encompasses 45 leafy vegetable species (Table 1) belonging to 21 family tabulated with botanical name, family, common name local name and mode of consumption. A maximum of 14 plants from Amaranthaceae, two each from Brassicaceae, Fabaceae, Apiaceae, Chenopodiaceae, Cleomaceae, Asteraceae, Portulaceae, Euphorpiaceae, Solanaceae, one each from Basellaceae, Nyctaginaceae, Sapindaceae, Commelinaceae, Papilionaceae, Convolvulaceae, Moringaceae, Oxalidaceae, Caesalpinaceae, Menispermaceae, Aizoaceae.
Consumption of herbs is as old as human race itself. Green leafy vegetables represent an excellent component of the habitual diet in the tropical and temperate countries. Green leafy Vegetables in our country are known to be the most inexpensive source of several vital nutrients. Leafy vegetables are appreciated because they not only supply the protective nutrients and add variety to a monotonous diet, but also have an alternative taste, pleasing appearance and aroma. In nature, there are many underutilized greens of promising nutritive value, which can nourish the ever increasing human population. Many of them are resilient, adoptive and tolerant to adverse climatic conditions. Although, they can be raised comparatively at lower management cost even on poor marginal lands, they have remained underutilized due to lack of awareness and popularization of technologies for utilization. Nowa- days, underutilized foods are gaining importance as a means to increase the per capita availability of foods.
Conclusion
Green leafy vegetables found in South India, used as a source of food have many health benefits like protection from eye problems, iron deficiency and oxidative damage. Green leafy vegetables are of great medical importance due to the health benefits produced. Thus, an attempt has been made to identify and analyze various underutilized green leafy vegetables for their nutrient content from selected regions of South Karnataka. The study throws light on encashment of these crops by preserving them as germplasm collections in different ICAR Centres of India for evaluation and multiplication before they become extinct and probable due focus needs to be concentrated by AICRP on Underutilized Crops of India on these crops.
Acknowledgment
Authors are thankful to farmers of different districts of Karnataka of India for the help provided during documentation of wild leafy vegetables and for their encouragement and facilities.
References
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