Development And Action Of The Roots Of Agricultural Plants At Various Stages Of Their Growth

The Role of Plant Roots in Crop Production

The Role of Plant Roots in Crop Production presents the state of knowledge on environmental factors in root growth and development and their effect on the improvement of the yield of annual crops. This book addresses the role of roots in crop production and includes references to numerous annual crops. In addition, it brings together the issues and the state-of-the-art technologies that affect root growth, with comprehensive reviews to facilitate efficient, sustainable, economical, and environmentally responsible crop production. Written for plant scientists, crop scientists, horticulturalists, and soil scientists, plant physiologists, breeders, environmental scientists, agronomists, and undergraduate and graduate students in different disciplines of agricultural science, The Role of Plant Roots in Crop Production: Addresses root architecture and development dynamics to help users improve crop productivity Emphasizes crop production, plant nutrition, and soil chemistry relative to root growth and functions Covers root morphology, root functions, nutrient and water uptake by roots, root-soil interactions, root-environment interactions, root-microbe interactions, physiology of root crops, and management practices to improve root growth Supports content with experimental results, and additional data is presented with pictures Increasing food production worldwide has become a major issue in the 21st century. Stagnation in grain yield of important food crops in recent years in developed, as well as developing, countries has contributed to a sharp increase in food prices. Furthermore, higher grain yield will be needed in the future to feed a burgeoning world population with a rising standard of living that requires more grain per capita. Technologies that enhance productivity, ensure environmental safety, and conserve natural resources are required to meet this challenge.

Development and Action of the Roots of Agricultural Plants at Various Stages of Their Growth

Development and Action of the Roots of Agricultural Plants at Various Stages of Their Growth

This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1863 edition. Excerpt: ... On Thk Vine Mildew. By Hugo Voii Mohl.* (Second Memoir.) N bringing the subject of the Vine Mildew again before the public, I have to plead as a sufficient excuse, partly its importance, and partly the circumstance that my former observations instituted in September 185 If were restricted to the more advanced form of the disease, whereas during the present year I have had an opportunity of examining the malady from the first period of its appearance, and, in consequence, of tracing more completely the influence of the fungus upon the vine. During the Inst two years, the disease was first observed, as well in the Tyrol as in Italy, after the vines had blossomed, and the ovaries had begun to swell. In the present year the malady appeared, if not sooner in point of time, still at an enrlier period as regr.rds the develop- ment of the vine, for in consequence of the cold vet unfavourable weather the vegetation was many weeks behind that of former years, so that at the time of writing this (on the 29th of June) all the vines at this place are not yet out of flower. Amici wrote to me from Florence on the 8th of June, that vine branches were brought to him the day before from the country, whose tendrils and un- opened blossoms were infested with the fungus. The first diseased vines which I met with were at Venice on the 15th of June, on which day only a few scattered blossoms were expanded. The vines of the Botanical Garden as well as the vineyards of Murano exhibited the disease, though only to a small extent. The peduncles and divisions of the blossoms, more especially, were infested with the fungus, which existed, though in small quantities only, on the bark at the lower end of this year's shoots, and also on the leaves and tendrils. I had...