نتایج جستجو برای: maize

تعداد نتایج: 36566  

Journal: :Molecules 2015
Farag Ibraheem Iffa Gaffoor Qixian Tan Chi-Ren Shyu Surinder Chopra

Sorghum responds to the ingress of the fungal pathogen Colletotrichum sublineolum through the biosynthesis of 3-deoxyanthocyanidin phytoalexins at the site of primary infection. Biosynthesis of 3-deoxyanthocyanidins in sorghum requires a MYB transcription factor encoded by yellow seed1 (y1), an orthologue of the maize gene pericarp color1 (p1). Maize lines with a functional p1 and flavonoid str...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2002
Yoshihiro Matsuoka Yves Vigouroux Major M Goodman Jesus Sanchez G Edward Buckler John Doebley

There exists extraordinary morphological and genetic diversity among the maize landraces that have been developed by pre-Columbian cultivators. To explain this high level of diversity in maize, several authors have proposed that maize landraces were the products of multiple independent domestications from their wild relative (teosinte). We present phylogenetic analyses based on 264 individual p...

2008
Helong Yu Guifen Chen Dayou Liu

The current precision fertilization technology of maize is still incomplete and unsystematic. In the paper, according to the fact of maize production of black soil zone in Jilin province, spatial variability of soil nutrient is studied, precision fertilization model of maize is introduced, a web-based expert system for maize precision fertilization is developed. Finally, the precision fertiliza...

2008
Xianxi Liu Yuliang Wang Qingtang Su Zhaona Wang

This paper systematically studies maize seeds varieties identification technology and algorithms using advanced machine vision technology. A multi-object contour extraction algorithm adapting to maize seeds varieties identification was proposed. Geometric features and color features parameters of maize seeds were defined and analyzed, and a multi-object geometric features and color features ext...

2010
Xiaomei Yan Jinxing Wang Shuangxi Liu Chunqing Zhang

In order to identify miscellaneous seed from maize seed accurately and rapidly, maize seed purity identification method based on color extracted from the images of both the maize crown and the maize side was proposed for improving maize seed purity. Firstly, segmentation and single extraction were carried on the original image; secondly, the color models RGB and HSV were used to extract multidi...

Journal: :Bioresource technology 2012
Ruifang Gao Xufeng Yuan Wanbin Zhu Xiaofen Wang Shaojiang Chen Xu Cheng Zongjun Cui

The methane potential of nine varieties of fresh maize harvested at three different times and of maize silage was experimentally determined in batch assays. The ultimate methane productivity in terms of volatile solids (VS) was determined as 213.94-313.63, 195.88-334.81 mL/g VS from several fresh and silage maize in three stages, respectively. The average specific methane yield of wax ripeness ...

Journal: :journal of crop protection 2015
luke chinaru nwosu chris olukayode adedire emmanuel oludele ogunwolu

new sources of maize resistance to the maize weevil, sitophilus zeamais infestation are indispensable in successful breeding programs against post harvest grain damage. the study investigated the characters and mechanisms that confer resistance to weevil infestation using twenty elite maize genotypes. detailed morphological and physical studies were conducted on whole-maize grain. the grain hul...

Journal: :بوم شناسی کشاورزی 0
ستار فتوحی چیانه عزیز جوانشیر عادل دباغ محمدی نسب اسکندر زند فرهنگ رضوی اسماعیل رضایی چیانه

in order to study the intercropping effects of maize (zea mays l.) and bean (phaseolus vulgaris l.) and evaluating effect of intercropping on weed biomass, a field experiment was conducted at the agricultural research station, payamenoor university of nagadeh,west- azarbayjan, iran during growing season of 2009-2010. the experiment was laid out as randomized complete block design with three rep...

Journal: :Journal of animal science 2010
E J Mc Geough P O'Kiely P A Foley K J Hart T M Boland D A Kenny

This experiment aimed to quantify the methane emissions and intake, digestibility, performance, and carcass characteristics of finishing beef cattle offered maize (Zea mays) silages harvested at 1 of 4 sequential stages of maturity and to relate these values to those obtained from animals offered an ad libitum concentrate-based diet. Sixty continental crossbred steers with a mean initial BW of ...

Journal: :Annals of the New York Academy of Sciences 2014
Peter Ranum Juan Pablo Peña-Rosas Maria Nieves Garcia-Casal

Maize (Zea mays), also called corn, is believed to have originated in central Mexico 7000 years ago from a wild grass, and Native Americans transformed maize into a better source of food. Maize contains approximately 72% starch, 10% protein, and 4% fat, supplying an energy density of 365 Kcal/100 g and is grown throughout the world, with the United States, China, and Brazil being the top three ...

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