نتایج جستجو برای: based methods capabilities in wheat yield predication in wheat fields

تعداد نتایج: 17716275  

جهانگیر عابدی کوپایی, , احمد قنبری, , جواد طایی سمیرمی, ,

A field study was conducted at the Zabol Agricultural Research Center during the years (2003-2004) to investigate the effect of irrigation with treated municipal wastewater on the yield and quality of wheat and some soil properties. Irrigation treatments were: T1: Irrigation of wheat with well water during entire period of growing season T2: Irrigation of wheat with well water until the begging...

2013
Guiping Yan Richard W. Smiley Patricia A. Okubara Catherine L. Reardon

Yan, G. P., Smiley, R. W., Okubara, P. A., Skantar, A. M., and Reardon, C. L. 2013. Developing a real-time PCR assay for detection and quantification of Pratylenchus neglectus in soil. Plant Dis. 97:757-764. Pratylenchus neglectus is one of the most widespread and economically important nematodes that invades plant roots and restricts wheat productivity in the Pacific Northwest. It is challengi...

In order to investigate the effects of sowing date (SD) and single irrigation (SI) amounts on yield and yield components of rainfed wheat varieties, a field experiment was conducted as split-split plots arranged in a randomized complete blocks design with three replications during 2002-2004 at main station of Dryland Agricultural Research Institute in Maragheh, Iran. Treatments included three s...

Journal: :Plant physiology 2015
Oxana Dobrovolskaya Caroline Pont Richard Sibout Petr Martinek Ekaterina Badaeva Florent Murat Audrey Chosson Nobuyoshi Watanabe Elisa Prat Nadine Gautier Véronique Gautier Charles Poncet Yuriy L Orlov Alexander A Krasnikov Hélène Bergès Elena Salina Lyudmila Laikova Jerome Salse

Bread wheat (Triticum aestivum) inflorescences, or spikes, are characteristically unbranched and normally bear one spikelet per rachis node. Wheat mutants on which supernumerary spikelets (SSs) develop are particularly useful resources for work towards understanding the genetic mechanisms underlying wheat inflorescence architecture and, ultimately, yield components. Here, we report the characte...

ژورنال: علوم آب و خاک 2010
صبا, جلال , جوانمردی, شورانگیز, فتوت , رضا ,

Osmotic adjustment is generally regarded as an important adaptation of wheat to drought. Because it helps to maintain turgor and cell volume, osmotic adjustment is often thought to promote growth, yield, or survival, of plants in dry soils. However, a physiological rationale for such views is lacking. This study was conducted to determine the effect of osmotic adjustment and some of its compone...

2009
Richard Carew Elwin G. Smith Cynthia Grant

Production functions to explain regional wheat yields have not been studied extensively in the Canadian prairies. The objective of this study is to employ a Just-Pope production function to examine the relationship between fertilizer inputs, soil quality, biodiversity indicators, cultivars qualifying for Plant Breeders’ Rights (PBR), and climatic conditions on the mean and variance of spring wh...

B. Jiang D.F. Fan H.F. Zuo L. Gao Q. Yu, Sh.Y. Yang, W. Yang X.B. Yang X.L. Chen Y.H. Ma

The effect of draining crop fields during the wheat season on the soil CH4 andN2O emissions during the rice season in this article. There were four treatments:traditional cultivation during the wheat season + cultivation without fertilizationduring the rice season (CK1 field), traditional cultivation during the wheat season +traditional cultivation during the rice season (CK2 field), draining t...

2008
Thomas G. Shanower Debra K. Waters

J. Entomol. Sci. 41(1): 40-48 (January 2006) Abstract The wheat stem sawfly, Cephus cinctus Norton, the wheat stem maggot, Meromyza americana Fitch, the Hessian fly, Mayetiola destructor (Say), the wheat jointworm, Tetramesa tritici (Fitch), and the wheat strawworm, Tetramesa grandis ( Riley), have long been considered wheat pests in the northern Great Plains. This paper reports results of surv...

Journal: :بوم شناسی کشاورزی 0
فاطمه زرعکانی غلامعلی کمالی امیرحسین چیذری

climate change is a phenomenon that has made the most concern in communities and decision making centers. this phenomenon has important effects on different aspects of human life. one of the most important crops that are affected by climate change is wheat. accordingly, data and information of northern khorasan have been used to study the effects of climate change on rain-fed wheat yield. for t...

A.X. Deng B.M. Zhang C.Y. Zheng, H. Latifmanesh J.L. Huang L. Li W.J. Zhang Y.T. Zheng Z.J. Chen Z.W. Song

Wheat-corn cropping system is one of the most important grain production systems in theworld. However, the integrative impacts of soil tillage on crop yield, N use efficiency (NUE)and greenhouse gases (GHGS) emissions are not well documented in this system. Thus, a twoyear field experiment was carried out in a typical wheat-corn cropping system with four tillageregimes during the wheat season, ...

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