Posts Tagged ‘Asia’

Performance of biofortified spring wheat genotypes in target environments for grain zinc and iron concentrations

Posted by Carelia Juarez on , in Journal Articles

Published in Field Crops Research 137 : 261-267, 2012

G. Velu, R.P. Singh, J. Huerta-Espino, R.J. Peña, B. Arun, A. Mahendru-Singh, M. Yaqub Mujahid, V.S. Sohu, G.S. Mavi, J. Crossa, G. Alvarado, A.K. Joshi and W.H. Pfeiffer

Genetic biofortification to improve zinc (Zn) and iron (Fe) concentrations in bread wheat (Triticum aestivum L.) could reduce micronutrient malnutrition-related problems in the developing world. A breeding program on wheat was started to enhance Zn and Fe concentrations and other essential traits needed in a successful commercial variety. The first set of advanced lines derived from crosses of high yielding wheats with genetic resources possessing high Zn and Fe such as Triticum spelta, landraces and synthetic wheat based on Triticum dicoccon were tested at nine locations in South Asia and Mexico for Zn and Fe concentration, grain yield and other traits. Analyses of variance across locations revealed significant genotypic, environmental and genotype × environment (G × E) effects for grain Zn and Fe concentrations and grain yield. Variances associated with environmental effects were larger than the genotypic and G × E effects for all three traits, suggesting that environmental effects have relatively greater influence. Although G × E interaction was significant, high heritabilities were observed for Zn and Fe concentrations at individual sites and across environments, reflecting non-crossover type of interaction. This trend was confirmed by the high genetic correlations between locations that showed similar ranking of entries across locations, indicating that it is possible to select the best adapted entries with high Zn and Fe concentration. Pooled data across locations showed increments of 28% and 25% over the checks for Zn and Fe. A considerable number of entries exceeded intermediate to full breeding target Zn concentrations, indicating that it is possible to develop Zn-biofortified varieties with competitive yields and other farmer preferred agronomic traits. The positive and moderately high correlation between Zn and Fe concentration suggest good prospects of simultaneous improvement for both micronutrients.

Adoption analysis of resource-conserving technologies in rice (Oryza sativa)-wheat (Triticum aestivum) cropping system of South Asia

Posted by Carelia Juarez on , in Journal Articles

Published in Indian Journal of Agricultural Sciences 82(5): 405-409, 2012

Ram Singh, Erenstein Olaf, Yashpal Singh Saharawat, Neelam Chaudhary, M. L. Jat

The bread and rice baskets of South Asia feeding 20% of world population are showing stalled production due to fatigued natural resource bases. The present survey assesses the constraints in adoption of integrated crop and resource management practices in rice (Oryza Sativa L.) wheat (Triticum aestivum L. emend. Fiori & Paol.) systems of Indo-Gangetic plains. The research and developmental activities have a positive impact on resource-conserving technology (RCT) explain first then use RCT use rates. Further, study confirmed that RCTs generally are cost reducing without yield loss, thereby enhancing farmers’ income. The village surveys do however, highlight that the better endowed farmers tend to be the first adopters of RCTs. Purposive efforts are therefore needed to ensure that access to and uptake of RCTs is more inclusive. The marked regional variation also emphasizes the need for local adaptation – giving further impetus to the need for on-farm R and D initiatives to help adapt promising technological innovations to the local and diverse circumstances faced by resource poor farmers.

New Book in the Library: Asian noodles: science, technology, and processing

Posted by on , in New Acquisitions

Asian Noodles: Science, Technology, and Processing

Gary G. Hou
ISBN: 978-0-470-17922-2
447 pages / 2010

 In Asian Noodles: Science, Technology and Processing, international experts review the current knowledge and offer comprehensive cutting-edge coverage on Asian noodles unmatchable in any publication. The authors cover an array of topics including breeding for noodle wheat, noodle flour milling, noodle flour quality control and analysis, noodle processing, sensory and instrumental measurements of noodle quality, the effects of wheat factors on noodle quality, packaging and storage, nutritional fortification of noodle products, noodle flavor seasoning, and noodle plant setup and management.

Table of Contents

  • Contributors.
  • Foreword.
  • Introduction.
  • Breeding Noodle Wheat in China (Zhonghu He, Xianchun Xia, and Yan Zhang).
  • Breeding for Dual-Purpose Hard White Wheat in the US: Noodles and Pan Bread (Arron H. Carter, Carl A. Walker, and Kimberlee K. Kidwell).
  • Wheat Milling and Flour Quality Analysis for Noodles in Japan (Hideki Okusu, Syunsuke Otsubo, and James Dexter).
  • Wheat Milling and Flour Quality Analysis for Noodles in Taiwan (C. C. Chen and Shu-ying (Sophia) Yang).
  • Noodle Processing Technology (Gary G. Hou, Syunsuke Otsubo, Hideki Okusu, and Lanbin Shen).
  • Instant Noodle Seasonings (Kerry Fabrizio, Rajesh Potineni, and Kim Gray).
  • Packaging of Noodle Products (Qingyue Ling).
  • Laboratory Pilot-Scale Noodle Manufacturing and Evaluation Protocols (Gary G. Hou).
  • Objective Evaluation of Noodles (David W. Hatcher).
  • Sensory Evaluation of Noodles (Bin Xiao Fu and Linda Malcolmson).
  • Effects of Flour Protein and Starch on Noodle Quality (Byung-Kee Baik).
  • Effects of Polyphenol Oxidase on Noodle Color: Mechanisms, Measurement, and Improvement (E. Patrick Fuerst, James V. Anderson, and Craig F. Morris).
  • Effects of Flour Characteristics on Noodle Texture (Andrew S. Ross and Graham B. Crosbie).
  • Noodle Plant Setup and Resource Management (Gary G. Hou, Syunsuke Otsubo, Veronica Jimenez, and Julio Gonzalez).
  • Quality Assurance Programs for Instant Noodle Manufacturing (Sumonrut Kamolchote, Toh Tian Seng, Julio Gonzalez, and Gary G. Hou).
  • Rice and Starch-Based Noodles (Zhan-Hui Lu and Lilia S. Collado).

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New CIMMYT Publications: Maize for Asia – Emerging Trends and Technologies. Proceedings of the 10th Asian Regional Maize Workshop; Makassar, Indonesia; October 20-23, 2008

Posted by Jose Juan Caballero on , in CIMMYT Publications

Editor in Chief
Pervez H. Zaidi, Mohammad Azrai, and Kevin Pixley
ISBN: 978-979-1159-41-8
Abstract: This is proceeding of the 10th Asian Regional Maize
Workshop held in Makassar, Indonesia during 20 – 23 October 2008, and co-organized by International Maize and Wheat Improvement Center (CIMMYT), Mexico and The Indonesian Agency for Agricultural Research and Development (IAARD), Indonesia.
The theme of the workshop was “Maize for Asia: Emerging Trends and Technologies”. The 10th ARMW brought together in Makassar, Indonesia, over 300 maize scientists, researchers and students from public and private sectors, including participants from China, Philippines, Thailand, Cambodia, Myanmar, Bangladesh, Nepal, Bhutan, India, Iran, Indonesia, Vietnam, Laos, Australia, Kenya and Mexico.  The workshop had 65 oral and 108 poster presentations, and included  invited lectures, research paper presentations, scientific deliberations  and discussions on maize in Asia. Papers of the proceeding deals with molecular tools, for maize improvement, genetics and breeding, crop management, biotic and Abiotic stresses affecting maize, technology dissemination and country reports.

Comparing water management in rice-wheat production systems in Haryana, India and Punjab, Pakistan

Posted by on , in Journal Articles

Published in Agricultural Water Management 96(12): 1799-1806

Comparing water management in rice-wheat production systems in Haryana, India and Punjab, Pakistan

Olaf Erenstein

The intensive irrigated rice-wheat systems in the northwest Indo-Gangetic Plains of South Asia are built on a long tradition of canal irrigation and the more recent advent of tubewells. Findings from farm surveys are used to examine water management and water productivity in the rice-wheat belt of India’s Haryana State and Pakistan’s Punjab province. Attributes of the irrigation sources help explain the widespread interest in groundwater use and the relative demise of canal water use. In each area groundwater now is the main irrigation source, used either solely or in conjunction with surface water. The ownership of tubewells is near universal among the surveyed farms, whereas conjunctive water use is more widespread during the monsoon season, among better endowed farmers and in the Pakistan Punjab. In Pakistan Punjab farmers primarily rely on diesel powered tubewells whereas Haryana farmers mainly use relatively cheaper electric power. Water productivity indicators for rice are markedly lower than those for wheat?largely reflecting significantly higher water inputs in paddy cultivation but also vary between the study areas and by the prevailing water use, reflecting the limited incentives for farmers to use water wisely. A combination of technological, land use and market based approaches is likely to be most effective in achieving sustainable water management in these intensive cereal systems