نتایج جستجو برای: wheat yield

تعداد نتایج: 241460  

2017
Drew J. Lyon David D. Baltensperger

cultivars, net return is maximized when grazing is terminated at first hollow stem—the stage at which hollow Although grazing of winter wheat (Triticum aestivum L.) is a stem can first be identified above the crown (Redmon common practice in the southern Great Plains, little is known about the efficacy of wheat as a dual-purpose crop in the Nebraska Panhanet al., 1996). However, beyond an optim...

2012
Li Quanqi Chen Yuhai Zhou Xunbo Yu Songlie Guo Changcheng

In north China, double cropping of winter wheat and summer maize is a widely adopted agricultural practice, and irrigation is required to obtain a high yield from winter wheat, which results in rapid aquifer depletion. In this experiment conducted in 2001-2002, 2002-2003, and 2004-2005, we studied the effects of irrigation regimes during specific winter wheat growing stage with winter wheat and...

Journal: :Journal of experimental botany 1997
G D Goins N C Yorio M M Sanwo C S Brown

Red light-emitting diodes (LEDs) are a potential light source for growing plants in spaceflight systems because of their safety, small mass and volume, wavelength specificity, and longevity. Despite these attractive features, red LEDs must satisfy requirements for plant photosynthesis and photomorphogenesis for successful growth and seed yield. To determine the influence of gallium aluminium ar...

2005
H. Han Z. Li T. Ning X. Zhang Y. Shan M. Bai

Water stress is a frequent and critical limit to wheat (Triticum aestivum L.) production in North China. It has been shown that photosynthetic active radiation (PAR) is closely related to crop production. An experiment was conducted to investigate the effects of deficit irrigation and winter wheat varieties on the PAR capture ration, PAR utilization and grain yield. Field experiments involved J...

2016
James Giovannoni

Maydup ML, Antonietta M, Guiamet JJ, Graciano C, Lopez JR, Tambussi EA. 2010. The contribution of ear photosynthesis to grain filling in bread wheat (Triticum aestivum L.). Field Crops Research 119, 48–58. Motzo R, Giunta F. 2002. Awnedness affects grain yield and kernel weight in near-isogenic lines of durum wheat. Australian Journal of Agricultural Research 53, 1285–1293. Rebetzke GJ, Bonnett...

2017

A field experiment, laid out in Randomized Complete Block Design (RCBD) with split plot arrangement having four replications, was conducted at the south edge of Loess Plateau, Shaanxi, China to evaluate the responses of winter wheat and summer maize to different water saving management practices involving four mulching and irrigation treatments, i.e., plastic mulch ridge and straw mulch furrow ...

Journal: :journal of crop nutrition science 0
syed azam shah nuclear institute for food and agriculture (nifa), tarnab, peshawar, pakistan. wisal mohammad nuclear institute for food and agriculture (nifa), tarnab, peshawar, pakistan. syed mahmood shah nuclear institute for food and agriculture (nifa), tarnab, peshawar, pakistan. muhammad shoaib shafi khyber pakhtunkhwa, agriculture university, peshawar, pakistan.

effects of organic manure (poultry manure) applied alone and integrated with inorganic fertilizer (urea) on yield and yield component, n-uptake and soil fertility in wheat-maize cropping system was evaluated in a field experiment at nuclear institute for food and agriculture, peshawar, pakistan. poultry manure was applied alone and were integrated in different proportions with mineral nitrogeno...

2015
V. S. Dhaka Vikas Lamba

Agricultural sector area plays major role in Indian economy. This paper shows research comparison in between MLP Feed Forward Neural Network, Generalized Regression Neural Network and Radial-Basis Function Neural Network in the field of Wheat yield prediction using Z-score Normalization method. The outcome represents that GRNN present better prediction results as compared to FFNN and RBNN. Eigh...

امام, یحیی, موری , سعید, مقصودی, کبری , کریم‏زاده سورشجانی, هدایت الله ,

Drought stress is the most important factor restricting both growth and crop yield formation under arid and semi-arid conditions. In a field experiment, the effects of foliar application of growth regulators of auxin at three levels (0, 20 and 40 mg/L) and cytokinin at three levels (0, 50 and 70 µmol) at pollination stage on yield and yield components of a bread wheat (Shiraz cultivar) and duru...

Journal: :Remote Sensing 2017
He Li Zhongxin Chen Gaohuan Liu Zhiwei Jiang Chong Huang

To improve the accuracy of winter wheat yield estimation, the Crop Environment Resource Synthesis for Wheat (CERES-Wheat) model with an assimilation strategy was performed by assimilating measured or remotely-sensed leaf area index (LAI) values. The performances of the crop model for two different assimilation methods were compared by employing particle filters (PF) and the proper orthogonal de...

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