Download or read book Leaf Development and Canopy Growth written by Bruce Marshall and published by CRC Press. This book was released on 2000 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: It will also be of interest to crop physiologists."--BOOK JACKET.
Download or read book Plant Canopies written by Society for Experimental Biology (Great Britain). Meeting and published by Cambridge University Press. This book was released on 1989 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is a synthesis of current knowledge about the growth, development and functioning of plant canopies.
Download or read book Leaf and canopy development of mangosteen Garcinia mangostana L grown under natural shade trees written by Masri Muhamad and published by . This book was released on 1994 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt: Leaf and canopy development were studied on 30-months old mangosteen (Garcinia mangostana L.) plants grown under the shade trees of Indigofera tasmania and were compared to those grown without shade. Results showed that shaded trees had significantly wider canopy spread (73.9 cm) as compared to unshaded ones (62.7 cm). Similary, canopy growth rate of shaded trees had only 1.48 cm/month canopy growth rate. The average leaf size of the shaded plants was 140.3 cm2 as compared to 94.4 cm2 for unshaded controls. However, the specific leaf weight were lower for the shaded trees.In terms of leafs growth, leaf length development of shaded plants were significantly faster and matured two weeks earlier than the unshaded leaves. Results of the study suggest that mangosteen trees grown under shade condition had better leaf and canopy growth as compared to those exposed to without shading. [Author's abstract].
Download or read book Establishment and Application of Phenotyping Methods to Measure Leaf and Canopy Growth in the Laboratory and Field written by Michael Friedli and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Canopy Photosynthesis From Basics to Applications written by Kouki Hikosaka and published by Springer. This book was released on 2015-12-17 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: The last 30 years has seen the development of increasingly sophisticated models that quantify canopy carbon exchange. These models are now essential parts of larger models for prediction and simulation of crop production, climate change, and regional and global carbon dynamics. There is thus an urgent need for increasing expertise in developing, use and understanding of these models. This in turn calls for an advanced, yet easily accessible textbook that summarizes the “canopy science” and introduces the present and the future scientists to the theoretical background of the current canopy models. This book presents current knowledge of functioning of plant canopies, models and strategies employed to simulate canopy function, and the significance of canopy architecture, physiology and dynamics in ecosystems, landscape and biosphere.
Download or read book Growth Development and Photosynthesis of the Snapdragon Antirrhinum Majus L Leaf Canopy During Different Seasons microform written by Jorge Antonio Gutierrez Espinosa and published by National Library of Canada = Bibliothèque nationale du Canada. This book was released on 2004 with total page 133 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Leaf Area Index and Specific Leaf Weight written by Ram Oren and published by . This book was released on 1984 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two physiological factors are of major importance to tree and stand growth: (1) the photosynthetic rate of foliage and (2) the amount of foliage. If carbohydrate allocation patterns remain constant, stand growth should be related directly to total canopy photosynthesis. From a literature analysis I assess methods of relating photosynthetic rates to biochemical, anatomical, and structural characteristics of foliage. A number of these foliage characteristics were found to be interrelated. Specific leaf weight was shown to be a valuable index for comparing photosynthesis by various parts of a tree canopy over a season or throughout an entire year. Mean annual photosynthetic rate in five separate portions of a spruce canopy was directly proportional to observed differences in specific leaf weight (r2 = 0.99). Annual carbon uptake was a function of total foliage biomass (r2 = 0.96). When foliage biomass at each crown segment was adjusted for differences in specific leaf weight, reflecting differences in photosynthetic rates, the predictive equation further improved C r2 = 0.99). Specific leaf weight is recommended as an index for comparing the relative effects of various silvicultural treatments on photosynthesis. I then evaluated how stand growth and canopy leaf area were related by analyzing 24 years of growth records from a Pinus ponderosa (Laws.) experiment. The experiment included a wide range in initial stocking and partial control of understory vegetation (Barrett 1982). I found that treatment effects on tree growth can be evaluated at low values of stand leaf area from comparison of growth efficiencies (wood produced per unit leaf area) among plots of similar canopy leaf area. By comparing stand growth with stand leaf area, I concluded that the major effect of removing understory vegetation was to speed the development of the canopy. This interpretation was also supported by a comparison of the rate of leaf area development on plots with and without understory vegetation at comparable levels of canopy leaf area. Comparing stands at a similar canopy leaf area is advised for assessing how treatment affects stand development. This is a valuable alternative to analyzing treatment effects at one point in time and helps to explain the results of many fertilization experiments.
Download or read book Growth Canopy Development Leaf Physiology and Cropping of Apple Trees as Influenced by Summer Pruning written by Richard Paul Marini and published by . This book was released on 1981 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spatial Pattern of Leaf Growth of Sorghum as Affected by Water Stress and Implications for Canopy Development written by Sue Walker and published by . This book was released on 1988 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Influence of Initial Tree Size on Growth Canopy Development and Physiology in the Urban Environment written by Matthew Paul Ross and published by . This book was released on 2008 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Trees in a Changing Environment written by Michael Tausz and published by Springer. This book was released on 2014-08-26 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book delivers current state-of-the-science knowledge of tree ecophysiology, with particular emphasis on adaptation to a novel future physical and chemical environment. Unlike the focus of most books on the topic, this considers air chemistry changes (O3, NOx, and N deposition) in addition to elevated CO2 effects and its secondary effects of elevated temperature. The authors have addressed two systems essential for plant life: water handling capacity from the perspective of water transport; the coupling of xylem and phloem water potential and flow; water and nutrition uptake via likely changes in mycorrhizal relationships; control of water loss via stomata and its retention via cellular regulation; and within plant carbon dynamics from the perspective of environmental limitations to growth, allocation to defences, and changes in partitioning to respiration. The authors offer expert knowledge and insight to develop likely outcomes within the context of many unknowns. We offer this comprehensive analysis of tree responses and their capacity to respond to environmental changes to provide a better insight in understanding likelihood for survival, as well as planning for the future with long-lived, stationary organisms adapted to the past: trees.
Download or read book Modelling Plant Growth and Development written by D. A. Charles-Edwards and published by . This book was released on 1986 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: This timely text describes the physiological components, and models of them, of the growth determinants defined in Physiological Determinants of Crop Growth by D. A. Charles-Edwards (Academic Press). It extends the original analysis of dry matter production to encompass the morphological and phenological development of the plant. It uses the framework provided by the defined physiological determinants of growth as a vehicle to integrate knowledge of basic plant processes (leaf growth, phyllotaxis, flowering, etc.) into an understanding of whole plant performance. Mathematics, mostly simple algebra, is used to formalise and quantify the relationships between the different plant processes.
Download or read book Changes in the photosynthetic light response curve during leaf development of field grown maize with implications for modelling canopy photosynthesis written by C M. Stirling and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Changes in the photosynthetic light-response curve during leaf development were determined for the fourth leaf of maize crops sown on 23 April and 10 June. Temperatures were unusually mild during late spring/early summer and neither crop experienced chilling damage. The concept of thermal time was used to take into account the effects of different temperature regimes on developmental stage, thereby enabling photosynthetic light-response data to be combined for both crops to describe the general response. Large variations in the upper asymptote (A(sat)) and convexity (Theta) of the light- response curve occurred during leaf development, but the maximum quantum yield of CO2 assimilation remained relatively constant throughout. Dark respiration rates showed a small but significant decrease with leaf age and generally ranged between 5 and 10% of A(sat). A simple mathematical model was developed to assess the sensitivity of daily leaf photosynthesis (A(L)) to reductions in the A(sat), Theta and the initial slope (Phi) of the light-response curve at different stages of leaf development. On bright sunny days, and at all developmental stages, A(L) was ca. twice as sensitive to reductions in A(sat) than to reductions in Phi and Theta. In overcast conditions, however, all three parameters contributed significantly to reductions in leaf photosynthesis, although the contribution of Phi was greatest during early leaf growth, while older leaves were most sensitive to depressions in A(sat). The implications of these results for modelling the sensitivity of canopy photosynthesis to chill- induced photoinhibition of the light-response curve are discussed.
Download or read book Advances in Tea Agronomy written by M. K. V. Carr and published by Cambridge University Press. This book was released on 2018-01-11 with total page 485 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tea is big business. After water, tea is believed to be the most widely consumed beverage in the world. And yet, as productivity increases, the real price of tea declines while labour costs continue to rise. Tea remains a labour intensive industry. With a distinguished career spanning over 50 years and rich experience in diverse crops, Mike Carr is eminently qualified to indulge in an intelligent discourse on tea agronomy. In addition to a comprehensive review of the principal tea growing regions worldwide in terms of structure, productivity and principal constraints, he has attempted to question and seeks to find the associated experimental evidence needed to support current and future crop management practices. The book will assist all those involved in the tea industry to become creative thinkers and to question accepted practices. International in content, it will appeal to practitioners and students from tea growing countries worldwide.
Download or read book Developmental Genetics and Plant Evolution written by Quentin C.B. Cronk and published by CRC Press. This book was released on 2004-01-29 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: A benchmark text, Developmental Genetics and Plant Evolution integrates the recent revolution in the molecular-developmental genetics of plants with mainstream evolutionary thought. It reflects the increasing cooperation between strongly genomics-influenced researchers, with their strong grasp of technology, and evolutionary morphogenetists and sys
Download or read book Advances in Irrigation Agronomy written by M. K. V. Carr and published by Cambridge University Press. This book was released on 2012-04-05 with total page 377 pages. Available in PDF, EPUB and Kindle. Book excerpt: Examines the factors influencing water productivity in nine key plantation crops in the context of increased pressure on water resources.
Download or read book The Impact of Atmospheric CO2 Enrichment on Volume Growth Canopy Architecture and Leaf Area Development of a Short Rotation Poplar Stand written by Carlo Calfapietra and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
