The total area used for fruit cultivation in Tunisia is approximately 470,000 ha, producing mainly citrus, grapevine, stone and pome fruits. Stone fruits are cultivated on some 380,000 ha. Among the stone fruits traditionally grown in Tunisia, almond is the most important and widespread crop (310,000 ha). Peach ranks second with about 22,000 ha, while apricot and plum rank third and fourth, bei...

We have designed and implemented a comprehensive study of a major, land-estuarine system in the Acadian biogeographic province in eastern New England (Fig 1). Our goal is to develop a predictive understanding of the long-term response of watershed and estuarine ecosystems at the land-sea interface to changes in climate, land use and sea level and to apply this knowledge to the wise management a...

sent Cephalotaxus to Europe where it was received with interest and appreciation.2 Siebold grew five different Cephalotaxus in his own garden in Japan, along with many other plants he had discovered, cultivating them for their beauty and for evaluation as garden plants. Today, although plum yews are widely considered some of the most beautiful and useful of evergreen conifers, their potential a...

In early summer 1995, we surveyed total system metabolism in the Plum Island estuary. Objectives included (1) estimation of ecosystem metabolism via open-water oxygen measurements, (2) determination of the autotrophic and heterotrophic regions of the estuary, and (3) comparison of the loading of organic carbon from the watershed to measurements of autochthonous production. Metabolism was calcul...

This study investigated the composition of volatile compounds in two pummelo cultivars, including 'Shatian' and 'Guanxi', cultivated in different regions of China with the aim of studying the effect of cultivar and cultivation condition on biosynthesis of volatile compounds in pummelo. Volatile compounds were extracted from pummelo juice using head-space microextraction and then analyzed using ...

Two cultivars Buram-3-ho (susceptible) and CR-Hagwang (moderate resistant) of kimchi cabbage seedlings showed differential defense responses to anthracnose (Colletotrichum higginsianum), black spot (Alternaria brassicicola) and black rot (Xanthomonas campestris pv. campestris, Xcc) diseases in our previous study. Defense-related hormones salicylic acid (SA), jasmonic acid (JA) and ethylene led ...

application of edible coating as a way of prolonging the shelf-life of perishable fruits and vegetables is promising. two plum cultivars (stanley and giant) were treated with 1% chitosan and then stored at 0-1oc and relative humidity of 90±5% for 40 days. changes in weight loss, respiration rate, fruit firmness, soluble solid content, titrable acidity, ph, ascorbic acid as well as decay rate we...

The aim of this study was to find the chemical parameters for differentiation plum cultivars grown along fjord areas Western Norway and Eastern Norway, having specific agroclimatic conditions. Chemical analysis fruits confirmed contents 13 quantified elements, 22 sugar compounds, 11 organic acids, 19 phenolic antioxidant activity in 68 cultivars. Dominated were noted nitrogen (with maximum mean...

M. PLUM Mathematisches Institut I, Universität Karlsruhe, Kaiserstrasse 12, D-76128 Karlsruhe, Germany [Received on 10 December 2002; revised on 12 January 2004] It is well known that routine methods of computing the spectrum of a self-adjoint operator often lead to spurious eigenvalues in a gap between two parts of the essential spectrum. We provide a geometrical explanation for a numerical me...