Tropical leaf vegetables are grown in the tropics and are rich sources of nutrients, particularly minerals, and vitamins (Oomen and Grubben 1978). A number of species and cultivars have been introduced and grown in the continental US on a limited-scale, particularly in the southern region (Lamberts 1993). The US is a major market for tropical and specialty greens and most of the shipments come ...

The paleohexaploid crop Brassica rapa harbors an enormous reservoir of morphological variation, encompassing leafy vegetables, vegetable and fodder turnips (Brassica rapa, ssp. campestris), and oil crops, with different crops having very different leaf morphologies. In the triplicated B. rapa genome, many genes have multiple paralogs that may be regulated differentially and contribute to phenot...

Nitrate is an important component of the nitrogen cycle and is therefore present in all plants. However, excessive nitrogen fertilization results in a high nitrate content in vegetables, which is unhealthy for humans. Understanding the spatial distribution of nitrate in leaves is beneficial for improving nitrogen assimilation efficiency and reducing its content in vegetables. In this study, nea...

Consumption of vegetables is one of the most important ways of providing the body with mineral elements. However, it is not clear how mineral elements are distributed in different organs of vegetables, especially vegetables grown in greenhouses. The distribution of mineral elements in the root and leaves of greenhouse spinach was determined using synchrotron radiation XRF, the results indicated...

INTRODUCTION Brassica vegetables have been related to the prevention of cancer and degenerative diseases, owing to their glucosinolate and phenolic content. OBJECTIVE Identification of glucosinolates, flavonoids and hydroxycinnamic acids in representative varieties of kale, cabbage and leaf rape. METHODOLOGY One local variety of each crop was evaluated in this study using a multi-purpose ch...

We model a plant leaf by using two-dimensional domain walls with internal structures. Such domain walls can be found as soliton solutions in field theory describing magnetic materials. The radiation scattered by such domain walls behaves quite similar to the spectral reflectance of plant leaves. The model nicely simulates the spectral reflectance of a plant leaf as a function of the wavelength....

The nitrate contents of various vegetables were analyzed by ion chromatography. It was shown that tahtsai, spinach, chingentsai and pakchoi contained more than 300 mg of nitrate per 100 g of edible portion. There was a significant difference in the nitrate content of leaf, stem and edible portion of chingentsai between summer and winter, and there was a significant difference in the nitrate con...

Spices and herbal vegetables have long been traditionally used in habitual diets in tropical regions including Thailand. They contain not only essential nutrients but also are rich in various phytochemicals such as polyphenols, terpenes, alkaloids and phenolic acids, etc. The purified or crude extracts from some plants have been demonstrated to play a vital role in prevention and treatment of s...

Cancer of the larynx is fourteenth most common cancer in the world. Limited data are available from India on associations with risk factors and hence the present hospital based matched case-control study was conducted. Three hundred and five laryngeal cancer patients and an equal number of healthy controls matched for their age within 2 years, sex and place of residence constituted the study po...