Wiley

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Plant Breeding Progress and Genetic Diversity from De Novo Variation and Elevated Epistasis
Wiley - Tập 37 Số 2 - Trang 303-310 - 1997
D. C. Rasmusson, Ronald L. Phillips
Breeding programs in major crops normally restrict the use of parents to those improved for a variety of traits. Gain from utilizing these good × good crosses appears to be high, and improvements are sufficient to encourage continued breeding within narrow gene pools even though each cycle is expected to lead to reduced genetic variability. These finely tuned programs have gradually limite...... hiện toàn bộ
Issues in Diallel Analysis
Wiley - Tập 18 Số 4 - Trang 533-536 - 1978
Robert J. Baker
Critical issues in the use of diallel analysis are reviewed. From a statistical point of view the critical issue concerns the choice of a model with fixed or random genotypic effects. From a genetical point of view, two assumptions are critical in attempts to interpret the resuits of diallel analyses. The assumption concerning the independent distribution of genees in the parents is most c...... hiện toàn bộ
Wheat–Thinopyrum Intermedium Recombinants Resistant to Wheat Streak Mosaic Virus and Triticum Mosaic Virus
Wiley - Tập 49 Số 4 - Trang 1221-1226 - 2009
Bernd Friebe, Lili Qi, D. L. Wilson, Zhijian Chang, Dallas L. Seifers, T. J. Martin, Allan K. Fritz, Bikram S. Gill
To date, only one gene conferring resistance to Wheat streak mosaic virus (WSMV) designated as Wsm1 was transferred from Thinopyrum intermedium (Host) Barkworth and Dewey to wheat (Triticum aestivum L.) in the form of a compensating Robertsonian translocation T4DL·4Js... hiện toàn bộ
Gas Exchange Characteristics of Wheat Stands Grown in a Closed, Controlled Environment
Wiley - Tập 33 Số 1 - Trang 161-168 - 1993
Raymond M. Wheeler, Kenneth A. Corey, John C. Sager, W. M. Knott
Information on gas exchange of crop stands grown in controlled environments is limited, but is vital for assessing the use of crops for human life‐support in closed habitats envisioned for space. To studies were conducted to measure gas exchange of wheat stands (Triticum aestivum L. cv. Yecora Rojo) grown from planting to maturity in a large (20 m2... hiện toàn bộ
Quantitative Trait Loci Analysis of Endosperm Color and Carotenoid Content in Sorghum Grain
Wiley - Tập 48 Số 5 - Trang 1732-1743 - 2008
Maria G. Salas Fernandez, Martha T. Hamblin, Li Li, William L. Rooney, Mitchell R. Tuinstra, Stephen Kresovich
Vitamin A deficiency affects approximately 250 million people in semiarid regions of Africa and Asia, where sorghum (Sorghum bicolor Moench) is a major staple crop. Yellow endosperm sorghums contain carotenoids, some of which can be transformed by humans into vitamin A. Our objective was to study the genetic basis of variation in carotenoid levels in sorghum endo...... hiện toàn bộ
Potential for Genetically Modifying Dark Respiration of Tall Fescue Leaves1
Wiley - Tập 24 Số 5 - Trang 938-943 - 1984
Jeffrey J. Volenec, H. T. Nguyen, C. J. Nelson, D. A. Sleper
High dark respiration rate (RD) may be a physiological process associated with low herbage yield of tall fescue (Festuca arundinacea Schreb.) during summer. Our objectives were to 1) examine genotypic variability and determine genetic mechanisms controlling RD and 2) examine interrelationships between RD... hiện toàn bộ
Inheritance of Forage Quality and Its Relationship to Leaf Tensile Strength in Tall Fescue 1
Wiley - Tập 22 Số 1 - Trang 67-72 - 1982
Hung T. Nguyen, D. A. Sleper, A. G. Matches
Genotype ✕ Environment Interactions and Stability Analysis for Herbage Yield of Tall Fescue Synthetics1
Wiley - Tập 20 Số 2 - Trang 221-224 - 1980
Hung T. Nguyen, D. A. Sleper, K. Hunt
The development of forage grass cultivars which maintain a high level of performance over a wide range of environments is a goal of most breeding programs. Twenty‐five synthetics and two cultivars of tall fescue (Festuca arundinacea Schreb.) were evaluated for 3 years at two locations. Entries differed significantly for reproductive, vegetative, and total herbage...... hiện toàn bộ
In Situ Conservation of Landraces in Centers of Crop Diversity
Wiley - Tập 35 Số 2 - Trang 346-354 - 1995
Stephen B. Brush
The importance of crop germplasm found in landraces is well established, and a comprehensive international program exists to conserve this resource ex situ in gene banks and botanical gardens. Landraces are still cultivated in regions of crop domestication and diversity. In situ maintenance has been neglected by genetic resource conservation programs in part because of misconceptions about...... hiện toàn bộ
Allelic Variation at the Vernalization Genes Vrn‐A1, Vrn‐B1, Vrn‐D1, and Vrn‐B3 in Chinese Wheat Cultivars and Their Association with Growth Habit
Wiley - Tập 48 Số 2 - Trang 458-470 - 2008
X. K. Zhang, Yonggui Xiao, Yanyan Zhang, X. C. Xia, Jorge Dubcovsky, Zhonghu He
Information on the distribution of vernalization genes and their association with growth habit is crucial to understanding the adaptability of wheat (Triticum aestivum L.) cultivars to different environments. In this study, 278 Chinese wheat cultivars were characterized with molecular markers for the vernalization genes Vrn‐A1, ... hiện toàn bộ
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