Wiley

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Simulation‐Based Analysis of Effects of Vrn and Ppd Loci on Flowering in Wheat
Wiley - Tập 48 Số 2 - Trang 678-687 - 2008
Jeffrey W. White, Markus Herndl, R. C. Izaurralde, Thomas Payne, Gerrit Hoogenboom
Cereal production is strongly influenced by flowering date. Wheat (Triticum aestivum L.) models simulate days to flower by assuming that development is modified by vernalization and photoperiodism. Cultivar differences are parameterized by vernalization requirement, photoperiod sensitivity, and earliness per se. The parameters are usually estimated by comparing s...... hiện toàn bộ
Integrating genetic gain and gap analysis to predict improvements in crop productivity
Wiley - Tập 60 Số 2 - Trang 582-604 - 2020
Mark Cooper, Tom Tang, Carla Gho, Tim Hart, Graeme Hammer, Carlos D. Messina
AbstractA Crop Growth Model (CGM) is used to demonstrate a biophysical framework for predicting grain yield outcomes for Genotype by Environment by Management (G×E×M) scenarios. This required development of a CGM to encode contributions of genetic and environmental determinants of biophysical processes that influence key resource (radiation, water, nutrients) use a...... hiện toàn bộ
Remobilization of Carbon Reserves Is Improved by Controlled Soil‐Drying during Grain Filling of Wheat
Wiley - Tập 40 Số 6 - Trang 1645-1655 - 2000
Jianchang Yang, Jianhua Zhang, Huang ZuLiu, Qingsen Zhu, Long Wang
Heavy use of N fertilizers delays plant senescence in wheat (Triticum aestivum L.) and results in slow grain filling and a low harvest index. This study investigated whether senescence is enhanced by a controlled soil drying during the late grain‐filling stage and whether such an enhancement can lead to better remobilization of reserved C to the grains. Two wheat...... hiện toàn bộ
Yield of Wheat in the United Kingdom: Recent Advances and Prospects
Wiley - Tập 39 Số 6 - Trang 1604-1610 - 1999
R. B. Austin
ABSTRACTFrom 1948 to the present, wheat (Triticum aestivum L.) yields in the UK have increased by an average of 110 kg ha−1 each year. This rate of increase has been at least maintained in recent years. The greater yields have been associated with the adoption of cultivars of shorter stature, which are resistant to lo...... hiện toàn bộ
Relations of Photosynthetic Rates and Leaf and Canopy Characters to Sugarcane Yield1
Wiley - Tập 15 Số 5 - Trang 671-676 - 1975
J. E. Irvine
Simple correlations showed photosynthetic rates at low air velocities to be closely associated with leaf width, porosity, and specific leaf weight, and less closely associated with stomatal number, plant fresh weight, and, probably spuriously, leaf thickness. Photosynthetic rates/unit of leaf area did not increase with increasing yield, and selection of cultivars for these or for leaf char...... hiện toàn bộ
Physiological and Genetic Changes of Irrigated Wheat in the Post–Green Revolution Period and Approaches for Meeting Projected Global Demand
Wiley - Tập 39 Số 6 - Trang 1611-1621 - 1999
Matthew Reynolds, S. Rajaram, K. D. Sayre
ABSTRACTGlobal demand for wheat (Triticum aestivum L.) is growing faster than gains in genetic yield potential are being realized, currently a little under 1% per year in most regions. Improvement in yield of semidwarf wheat has generally been associated with increased harvest index (HI) and grain per square meter. For CIMMYT (Internation...... hiện toàn bộ
Climatic and Genotypic Effects for Grain Yield in Maize under Stress Conditions
Wiley - Tập 50 Số 1 - Trang 51-58 - 2010
M. Cinta Romay, Rosa Ana Malvar Pintos, Laura Campo, Ángel Carracedo, Jesús Moreno‐González, A. Ordás, Pedro Revilla
ABSTRACTClimate change is expected to affect agriculture. Yield stability across environments is a critical breeding goal when dealing with unstable climate and input reductions in farming systems. The objective of this study was to determine climatic and genetic factors contributing to genotype (G), environment (E), and genotype × environment (GE) variability for ...... hiện toàn bộ
Influence of Higher Growing‐season Temperatures on Yield Components of Winter Wheat (Triticum aestivum L.)
Wiley - Tập 53 Số 2 - Trang 621-628 - 2013
Zenta Nishio, Miwako Ito, Tadashi Tabiki, Koichi Nagasawa, Hiroaki Yamauchi, Tomoyoshi Hirota
ABSTRACTOver a 15‐yr period (1997–2011), the relationship between growing‐season temperatures and both sink components and yield of two elite winter wheat (Triticum aestivum L.) cultivars, Hokushin (soft red) and Kitanokaori (hard red), was investigated in Hokkaido, Japan. Culm length, spike length, duration from heading to maturation, an...... hiện toàn bộ
Somaclonal Variation and Improvement of Chilling Tolerance in Rice: Changes in Chilling‐Induced Chlorophyll Fluorescence
Wiley - Tập 37 Số 6 - Trang 1727-1735 - 1997
Pierre Bertin, J. Bouharmont, Jean‐Marie Kinet
Chilling is one of the major constraints for rice (Oryza sativa L.) culture at high altitude. The use of chlorophyll fluorescence to screen genotypes for chilling tolerance has been widely documented. Within a program dealing with improvement of chilling tolerance in rice, somacional variants were obtained previously and chilling tolerance was selected for during...... hiện toàn bộ
Genetic Yield Improvement of U.S. Maize Cultivars under Varying Fertility and Climatic Environments1
Wiley - Tập 24 Số 1 - Trang 33-36 - 1984
Ron Mack Castleberry, C. W. Crum, C. F. Krull
Yield of decade groups of maize (Zea mays L.) cultivars typical of those used by U.S. Corn Belt farmers in each of the decades since 1930 was evaluated across a range of soil fertility and climatic environments. This study gave estimates of the rate of genetic improvement in yield for each environment. In addition, a measure of the advisability of continued devel...... hiện toàn bộ
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