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this work may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, microfilming, recording or otherwise, without written permission from the Publisher, with the exception of any material supplied specifically for the purpose of being entered and executed on a computer system, for exclusive use by the purchaser of the work. Printed on acid-free paper Springer is part of Springer Science+Business Media (www.springer.com) PrefaceDry pea (Pisum sativum), chickpea (Cicer arietinum), broad bean (Vicia faba), lentil (Lens culinaris), lupins (Lupinus spp.) grass pea (Lathyrus sativus) and common vetch (Vicia sativa) are the major cool season grain legume crops which grow on all continents except Antarctica in more than 100 countries. These cool season grain legume crops are ancient crops of modern times and their cultivation dates back to the pre-historic time. Due to their high nutritional value and cultivation under poor environments mainly in dry ecologies, they are an integral part of daily dietary system of millions of people around the world. These cool season legume crops dominate international markets as their trading is more than US $1,200 million annually. Due to their eco-friendly nature, low cost in production, pre-dominance in national and international trade etc. these ancient crops have been accepted as the crops of modern management.Climate change predictions over this century are for warmer (at least 1-2 • C) and drier conditions, with increased extreme weather events and increased CO 2 levels, in the regions where the principal temperate grain legumes of chickpea, lentil, faba bean and pea are mainly grown. The most important global debate of this century is on climate change. It is predicted that by 2050 there will be significant impacts including rising temperature, increasing drought due to higher evaporation and changing rainfall distribution, and increased levels of CO 2 due to greenhouse and agriculture gas emissions. Thus it is predicted that present levels of agricultural production and field crops productivity under different ecologies and regions will be affected in a big way.The predictions about present production levels of cool season grain legume crops are that their productivity will decrease in the mid-latitudes or increase in the high latitudes regionally. People, especially in developing countries, having mostly vegetarian dietary system will face a big problem of availability of these legumes by 2050. Considering such disturbances it is important to develop efficient agronomic production system, to introduce widely adopted resistant high yielding cultivars and utilization of diverse genetic sources in the improvement of new varieties for wider ecologies and regions. This book provides a comprehensive review of current production constraints, achievements, future agronomic management and production technologies to sustain the production, utilization, international marketing, and crop improvements around the worl...
O-alpha-D-Galactopyranosyl-(1-->2)-D-chiro-inositol, herein named fagopyritol B1, was identified as a major soluble carbohydrate (40% of total) in buckwheat (Fagopyrum esculentum Moench, Polygonaceae) embryos. Analysis of hydrolysis products of purified compounds and of the crude extract led to the conclusion that buckwheat embryos have five alpha-galactosyl D-chiro-inositols: fagopyritol A1 and fagopyritol B1 (mono-galactosyl D-chiro-inositol isomers), fagopyritol A2 and fagopyritol B2 (di-galactosyl D-chiro-inositol isomers), and fagopyritol B3 (tri-galactosyl D-chiro-inositol). Other soluble carbohydrates analyzed by high-resolution gas chromatography included sucrose (42% of total), D-chiro-inositol, myo-inositol, galactinol, raffinose and stachyose (1% of total), but no reducing sugars. All fagopyritols were readily hydrolyzed by alpha-galactosidase (EC 3.2.1.22) from green coffee bean, demonstrating alpha-galactosyl linkage. Retention time of fagopyritol B1 was identical to the retention time of O-alpha-D-galactopyranosyl-(1-->2)-D-chiro-inositol from soybean (Glycine max (L.) Merrill, Leguminosae), suggesting that the alpha-galactosyl linkage is to the 2-position of D-chiro-inositol. Accumulation of fagopyritol B1 was associated with acquisition of desiccation tolerance during seed development and maturation in planta, and loss of fagopyritol B1 correlated with loss of desiccation tolerance during germination. Embryos of seeds grown at 18 degrees C, a condition that favors enhanced seed vigor and storability, had a sucrose-to-fagopyritol B1 ratio of 0.8 compared to a ratio of 2.46 for seeds grown at 25 degrees C. We propose that fagopyritol B1 facilitates desiccation tolerance and storability of buckwheat seeds.
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