نتایج جستجو برای: rice cultivars

تعداد نتایج: 96984  

Journal: :iran agricultural research 2010
m. majzoobi a. farahnaky

using a wide range of techniques, including differential scanning calorimetry, x-ray diffraction, rapid visco analyser and fourier transform infera red spectroscopy, some physicochemical properties of the starch fraction of six iranian rice cultivars (tarom, tarome hashemi, neda, ramezani, fajr and kamfirouzi) [1]were studied and compared. dsc data showed that starch granules of different rice ...

2015
Yangjun Zhang Lubin Tan Zuofeng Zhu Lixing Yuan Daoxin Xie Chuanqing Sun

Nitrogen (N), the most important mineral nutrient for plants, is critical to agricultural production systems. N deficiency severely affects rice growth and decreases rice yields. However, excessive use of N fertilizer has caused severe pollution to agricultural and ecological environments. The necessity of breeding of crops that require lower input of N fertilizer has been recognized. Here we i...

2013
Shabir Ahmad Mir Sowriappan John Don Bosco

The physical and functional properties of seven parboiled rice cultivars (Jehlum, K-332, Koshar, Pusa-3, SKAU-345, SKAU-382 and SR-1) were investigated at different soaking temperatures of 60 ̊C, 70 ̊C and 80 ̊C and it was compared with the brown raw rice of the respective cultivars. Parboiling was observed to decrease L* value and increase a* and b* values. The hardness of rice was significantly ...

2012
Jun-ichi Yonemaru Toshio Yamamoto Kaworu Ebana Eiji Yamamoto Hideki Nagasaki Taeko Shibaya Masahiro Yano

During the last 90 years, the breeding of rice has delivered cultivars with improved agronomic and economic characteristics. Crossing of different lines and successive artificial selection of progeny based on their phenotypes have changed the chromosomal constitution of the ancestors of modern rice; however, the nature of these changes is unclear. The recent accumulation of data for genome-wide...

Journal: :The New phytologist 2012
Gareth J Norton Shannon R M Pinson Jill Alexander Susan McKay Helle Hansen Gui-Lan Duan M Rafiqul Islam Shofiqul Islam Jacqueline L Stroud Fang-Jie Zhao Steve P McGrath Yong-Guan Zhu Brett Lahner Elena Yakubova Mary Lou Guerinot Lee Tarpley Georgia C Eizenga David E Salt Andrew A Meharg Adam H Price

• Inorganic arsenic (As(i) ) in rice (Oryza sativa) grains is a possible threat to human health, with risk being strongly linked to total dietary rice consumption and consumed rice As(i) content. This study aimed to identify the range and stability of genetic variation in grain arsenic (As) in rice. • Six field trials were conducted (one each in Bangladesh and China, two in Arkansas, USA over 2...

2013
Masanori Yamasaki Osamu Ideta

It is essential to elucidate genetic diversity and relationships among even related individuals and populations for plant breeding and genetic analysis. Since Japanese rice breeding has improved agronomic traits such as yield and eating quality, modern Japanese rice cultivars originated from narrow genetic resource and closely related. To resolve the population structure and genetic diversity i...

2016
Aldo Merotto Ives C. G. R. Goulart Anderson L. Nunes Augusto Kalsing Catarine Markus Valmir G. Menezes Alcido E. Wander

Several studies have expressed concerns about the effects of gene flow from transgenic herbicide-resistant crops to their wild relatives, but no major problems have been observed. This review describes a case study in which what has been feared in transgenics regarding gene flow has actually changed biodiversity and people's lives. Nontransgenic imidazolinone-resistant rice (IMI-rice) cultivars...

2004
Jeffrey T. Baker

Previous studies on the effects and interactions of atmospheric carbon dioxide concentration ([CO2]) and air temperatures have shown large differences in growth and yield responses among Asian rice (Oryza sativa L.) cultivars. Far less attention has been focused on rice cultivars commonly grown in the Southern US. This 2-year study was conducted to determine the effects of [CO2] and air tempera...

Behzad Shahin Kaleybar Ghorban Ali Nematzadeh, Sara Kabirnattaj Seyede Mona Salim Bahrami Seyyed Kamal Kazemitabar

Rice as one of the most important agricultural crops has a putative potential for ensuring food security and addressing poverty in the world. In the present study, in order to provide basic information to improve rice through breeding programs, Inter Simple Sequence Repeat marker (ISSR) was used For DNA fingerprinting and finding genetic relationships among 32 different cultivars. In this study...

Journal: :Journal of economic entomology 2001
M J Stout W C Rice S D Linscombe P K Bollich

The rice water weevil, Lissorhoptrus oryzophilus Kuschel, is the most destructive insect pest of rice in the United States and is a particularly severe pest in Louisiana. The current management program for this insect in Louisiana relies heavily on insecticides, most notably the seed treatment fipronil (Icon). Diversification of the management program by incorporation of alternative strategies ...

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