نتایج جستجو برای: zea mays l

تعداد نتایج: 629866  

Journal: :Plant physiology 2015
Iride Mascheretti Katie Turner Roberta S Brivio Andrew Hand Joseph Colasanti Vincenzo Rossi

The activity of the maize (Zea mays) florigen gene ZEA CENTRORADIALIS8 (ZCN8) is associated with the floral transition in both day-neutral temperate maize and short-day (SD)-requiring tropical maize. We analyzed transcription and chromatin modifications at the ZCN8 locus and its nearly identical paralog ZCN7 during the floral transition. This analysis was performed with day-neutral maize (Zea m...

2009

In this study, the mutagenic effects of low power radiofrequency radiation on Zea mays root tip were studied. Cells in different division phases and chromosomal aberration assay were used to determine the mitotic index and chromosomal aberration frequency of Zea mays root tip cells induced by 900MHz radiofrequency radiation. Zea mays seeds, having a uniform genophond, have been exposed to RF fi...

Journal: :Plant physiology 1989
F Menegus L Cattaruzza A Chersi G Fronza

Anaerobically treated seedlings of Oryza sativa L. var arborio accumulated in their shoots more succinate than lactate and cell sap became alkaline. Conversely, in Triticum aestivum L. var MEK 86 lactate accumulation was far higher than that of succinate and cell sap was acidified. Anoxia clearly induced proton consumption in both species as an important means to prevent or counteract acidosis....

ژورنال: :بوم شناسی گیاهان زراعی 2011
مهدی زارع

در بهار 1386، هفت لاین برگزیده ذرت همراه با 42 ژنوتیپ (21 تلاقی مستقیم و 21 تلاقی معکوس) حاصل از تلاقی های دی آلل آن ها در قالب طرح بلوک­های کامل تصادفی با سه تکرار در مزرعه مؤسسه تحقیقات اصلاح و تهیه نهال و بذر در کرج مورد بررسی قرار گرفتند. داده ها به روش هیمن تجزیه و تحلیل شد. نتایج نشان داد که صفات تعداد روز از ظهور گرده تا ظهور کاکل، تعداد روز از ظهور کاکل تا رسیدن فیزیولوژیک، ارتفاع بوته،...

Journal: :The Journal of heredity 2007
Norman C Ellstrand Lauren C Garner Subray Hegde Roberto Guadagnuolo Lesley Blancas

The closest wild relatives of maize, Zea mays ssp. mays are various Zea taxa known as "teosinte." Hybrids between maize and the teosinte taxon, Zea mays ssp. mexicana, often occur when the 2 are sympatric in Mexico. Measuring the spontaneous hybridization rate of the 2 taxa would shed light on the mechanisms contributing to the evolution and persistence of these hybrid swarms. We conducted a se...

2012
Hassan Heidari

People are worried about effect of household cleaning products in the environment. One of the sources of detergent is sewage that is being used for irrigation of the crops. A laboratory experiment and a pot experiment were conducted in 2012 to determine the effect of irrigation with different doses of detergent on plant growth and seed germination traits of maize (Zea mays). The experiments inc...

تنش آبی از تنش‌های غیر زنده‌ای است که منجر به کاهش عملکرد گیاهان زراعی می‌شود. به‌ منظور بررسی اثر سطوح گوناگون اسید سالیسیلیک بر ویژگی‌های مورفولوژیکی هیبریدهای ذرت شیرین (Zea mays L. saccharata) در شرایط تنش آب، این پژوهش به مدت دو سال در یک مکان به ‌صورت کرت‌های دو بار خرد شده در قالب طرح بلوک‌های کامل تصادفی در سه تکرار در اراضی زراعی مرکز تحقیقات کشاورزی یاسوج

Journal: :Genetics 2002
Maud I Tenaillon Mark C Sawkins Lorinda K Anderson Stephen M Stack John Doebley Brandon S Gaut

We investigate the interplay between genetic diversity and recombination in maize (Zea mays ssp. mays). Genetic diversity was measured in three types of markers: single-nucleotide polymorphisms, indels, and microsatellites. All three were examined in a sample of previously published DNA sequences from 21 loci on maize chromosome 1. Small indels (1-5 bp) were numerous and far more common than la...

Journal: :Energy and Power Engineering 2022

Mesophilic biogas production and substrate decomposition is one of the significant limiting steps in generation. The rate generation quality often affect viability systems. This study assessed potential for process catalysis using powdered Sorghum bicolor L., Zea mays, Pennisetum glaucum. kinetics processes were studied. Experiments conducted 1 m3 tubular batch reactors, where batches dosed wit...

Journal: :Genetics 1998
H Hilton B S Gaut

The grass genus Zea contains the domesticate maize and several wild taxa indigenous to Central and South America. Here we study the genetic consequences of speciation and domestication in this group by sampling DNA sequences from four taxa-maize (Zea mays ssp. mays), its wild progenitor (Z. mays ssp. parviglumis), a more distant species within the genus (Z. luxurians), and a representative of t...

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