<div dir="ltr"><div class="gmail_quote gmail_quote_container"><div dir="ltr"><div><div style="font-family:tahoma,sans-serif"><br></div><div><div style="font-family:tahoma,sans-serif"><div><div><div><div><div><div><div><div><div><div><div><table cellspacing="0" cellpadding="0" width="100%" bgcolor="#474444" style="font-family:Arial,Helvetica,sans-serif"><tbody><tr><td style="font-size:0px;height:33px;line-height:0"></td></tr><tr><td valign="top"> <table cellspacing="0" cellpadding="0" width="600" align="center" border="0" style="width:600px;margin:0px auto"><tbody><tr><th style="border-width:medium;border-style:none;border-color:initial;width:600px;font-weight:normal;padding:0px;text-align:left;background-color:rgb(254,251,251)"><table cellspacing="0" cellpadding="0" align="left" style="width:600px"><tbody><tr height="44" style="height:44px"><th style="border-width:medium;border-style:none;border-color:initial;width:477px;vertical-align:middle;font-weight:normal;padding:10px 0px 0px 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style="margin-bottom:1em;font-size:14px;font-family:tahoma,geneva,sans-serif;color:rgb(253,251,251);margin-top:0px;line-height:18px;background-color:transparent"><strong>VIERNES<br>5 de SEPTIEMBRE de 2025<br>12:00 hs</strong></p></th><th style="border-width:medium;border-style:none;border-color:initial;width:244px;vertical-align:middle;font-weight:normal;padding:10px 0px 0px;text-align:left;background-color:rgb(108,108,108)"><p align="center" style="margin-bottom:1em;font-size:14px;font-family:tahoma,geneva,sans-serif;color:rgb(56,56,56);text-align:center;margin-top:0px;line-height:18px;background-color:transparent"><a title="" href="https://www.youtube.com/channel/UCCC_QmqL9yuKBnZ6p4mnxBw" rel="noreferrer noreferrer" style="color:rgb(253,251,251);text-decoration-line:none" target="_blank">Presencial: SUM <strong>IFEVA</strong></a></p></th></tr></tbody></table></th></tr><tr><th 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</p><p style="margin-bottom:0.28cm;line-height:115%;direction:ltr;background:transparent"><font size="6">Short-Stature Corn and Other</font></p><p style="margin-bottom:0.28cm;line-height:115%;direction:ltr;background:transparent"><font size="6">Frontiers in the Physiology of </font></p><p style="margin-bottom:0.28cm;line-height:115%;direction:ltr;background:transparent"><font size="6">Efficiency Improvements in </font></p><p style="margin-bottom:0.28cm;line-height:115%;direction:ltr;background:transparent"><font size="6">Modern Hybrids</font></p></div></th></tr></tbody></table></th></tr><tr><th style="border-width:medium;border-style:none;border-color:initial;width:600px;font-weight:normal;padding:5px 0px;text-align:left;background-color:rgb(254,251,251)"><table cellspacing="0" cellpadding="0" align="left" style="width:600px"><tbody><tr height="564" style="height:564px"><th style="border-width:medium;border-style:none;border-color:initial;width:570px;vertical-align:top;padding:10px 15px;text-align:left"><p style="margin-bottom:1em;margin-top:0px;line-height:20px"><font size="4" face="arial, sans-serif"><span style="color:rgb(66,176,91);background-color:transparent">Autores: </span></font><font size="4"><span style="background-color:transparent;font-weight:normal">Tony Vyn</span><sup style="background-color:transparent;font-weight:normal">1</sup></font></p><p style="margin-bottom:1em;margin-top:0px;line-height:20px"><font style="background-color:transparent"><font style="background-color:transparent"><span style="font-size:large;color:rgb(66,176,91);font-family:Calibri,sans-serif">Filiación:</span><font color="#000000" face="tahoma, sans-serif" style="font-weight:normal" size="4"> </font></font></font><span style="background-color:transparent;font-weight:normal"><font size="4">Wallace Emeritus Professor in Crop Sciences</font></span></p><p style="margin-bottom:1em;margin-top:0px;line-height:20px"><font face="arial, sans-serif" size="4" style="background-color:transparent;font-weight:400;color:rgb(56,56,56)"><strong style="background-color:transparent;color:rgb(34,34,34)"><span style="color:rgb(66,176,91)">Resumen: </span></strong></font><span style="background-color:transparent;font-weight:normal"><font size="4">Physiological changes underlying maize yield and efficiency
improvements have fascinated crop scientists more focused on
physiology and management than on genetics and plant breeding. In
this presentation, I propose to highlight preliminary research
findings from Purdue University on short-stature corn hybrids in the
context of era hybrid changes over the past four decades in the U.S.
Corn Belt. The prospects for further gains in the nitrogen efficiency
and plant density tolerances will be discussed.</font></span></p>
<p style="margin-bottom:1em;margin-top:0px;line-height:20px"><font face="arial, sans-serif" size="4" style="background-color:transparent;font-weight:400;color:rgb(56,56,56)"><strong style="background-color:transparent;color:rgb(34,34,34)"><span style="color:rgb(66,176,91)">Palabras claves: </span></strong></font><span style="font-weight:normal"><font size="4">Short stature corn, Efficiency, Plant density, Yield</font></span></p><p style="margin-bottom:1em;margin-top:0px;line-height:20px"><span style="font-weight:normal"><font size="4"><br></font></span></p><div style="font-weight:400;background-color:rgb(255,255,255);font-family:tahoma,sans-serif"><p class="MsoNormal" style="margin:0cm 0cm 10pt;font-family:Calibri,sans-serif"><font size="4"><br></font></p></div></th></tr></tbody></table></th></tr><tr><th style="border-width:medium;border-style:none;border-color:initial;width:600px;font-weight:normal;padding:5px 0px;text-align:left;background-color:rgb(253,251,251)"><table cellspacing="0" cellpadding="0" align="left" style="width:600px"><tbody><tr height="163" style="height:163px"><th style="border-width:medium;border-style:none;border-color:initial;width:140px;vertical-align:top;padding:5px;text-align:left;background-color:transparent"><img src="cid:ii_mf448el60" alt="vyn_tony-150x150.jpeg" width="150" height="150"><br><br></th><th style="border-width:medium;border-style:none;border-color:initial;width:440px;vertical-align:top;padding:5px;text-align:left"><div style="background-color:rgb(255,255,255);font-family:tahoma,sans-serif"><span style="font-family:Arial,sans-serif;text-align:justify">Tony Vyn, </span><span style="background-color:rgb(253,251,251);font-weight:normal;font-family:Arial,Helvetica,sans-serif">is a recently retired professor from the Agronomy Department at Purdue University in Indiana, USA. Officially, his title is the “Wallace Emeritus Professor of Crop Sciences” because he was the Henry A. Wallace Chair in Crop Sciences from 2018 to his retirement in December 2023. Unofficially, he is a part-time cash-crop farmer in Ontario, Canada who continues to enjoy cropping systems research. Tony was a faculty member in the Crop Science Department at Guelph from 1987 until he joined the Agronomy Department faculty at Purdue University in 1998. During his 25-year career at Purdue, Dr. Vyn and his research team members studied the physiology of crop (primarily corn) responses to tillage, rotations, nutrient rate/placement/timing, abiotic stress factors, and plant populations with modern and era hybrids. </span><span style="background-color:rgb(253,251,251);font-weight:normal;font-family:Arial,Helvetica,sans-serif">Dr. Vyn enjoyed serving as a major professor to about 45 graduate students. He mentored more international graduate students and Visiting Scholars from Argentina than from any other non-North American country. </span></div><p style="margin-bottom:0.21cm;line-height:19.5px;direction:ltr"></p><p style="margin-bottom:0.21cm;line-height:19.5px;direction:ltr"></p></th></tr></tbody></table></th></tr><tr><th style="border-width:medium;border-style:none;border-color:initial;width:600px;font-weight:normal;padding:0px;text-align:left;background-color:rgb(229,229,229)"><table cellspacing="0" cellpadding="0" align="left" style="width:600px"><tbody><tr height="93" style="height:93px"><th style="border-width:medium;border-style:none;border-color:initial;width:570px;vertical-align:middle;padding:10px 10px 0px 20px;text-align:left;background-color:transparent"><span style="font-weight:normal">Certificados: </span><span style="background-color:transparent"><span style="font-weight:normal">los alumnos que necesiten certificar su asistencia, deberán enviar </span></span><span style="font-weight:normal;background-color:transparent;color:rgb(56,56,56);font-family:verdana,arial,helvetica,sans-serif">su nombre y DNI</span><span class="gmail_default" style="font-weight:normal;background-color:transparent;color:rgb(56,56,56);font-family:tahoma,sans-serif"> </span><span class="gmail_default" style="background-color:transparent;color:rgb(56,56,56);font-family:tahoma,sans-serif"><span style="font-weight:normal">al moderador (</span><a href="mailto:mtexeira@agro.uba.ar" rel="noreferrer noreferrer" style="font-weight:normal" target="_blank">mtexeira@agro.uba.ar</a><span style="font-weight:normal">) </span>durante el transcurso del <span>seminario</span> o dentro de la hora posterior a la finalización del mismo</span><span style="font-weight:normal;background-color:transparent;color:rgb(56,56,56);font-family:verdana,arial,helvetica,sans-serif">. </span><br></th></tr></tbody></table></th></tr><tr><th style="border-width:medium;border-style:none;border-color:initial;width:600px;font-weight:normal;padding:0px;text-align:left;background-color:rgb(66,176,91)"><table cellspacing="0" cellpadding="0" align="left" style="width:600px"><tbody><tr height="62" style="height:62px"><th style="border-width:medium;border-style:none;border-color:initial;width:560px;vertical-align:top;font-weight:normal;padding:25px 20px 10px;text-align:left;background-color:transparent"><p align="center" style="margin-bottom:1em;font-size:12px;font-family:tahoma,geneva,sans-serif;color:rgb(9,9,9);text-align:center;margin-top:0px;line-height:15px;background-color:transparent"><strong><span style="color:rgb(255,255,255)">Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura</span></strong></p></th></tr></tbody></table></th></tr><tr><th style="border-width:medium;border-style:none;border-color:initial;width:600px;font-weight:normal;padding:1px 0px;text-align:left;background-color:transparent"><table cellspacing="0" cellpadding="0" align="left" style="width:600px"><tbody><tr height="66" style="height:66px"><th style="border-width:medium;border-style:none;border-color:initial;width:590px;vertical-align:middle;font-weight:normal;padding:5px;text-align:left;background-color:transparent"><p align="center" style="margin-bottom:1em;font-size:12px;font-family:tahoma,geneva,sans-serif;color:rgb(253,251,251);text-align:center;margin-top:0px;line-height:15px;background-color:transparent"><br>IFEVA - Facultad de Agronomía - Universidad de Buenos Aires<br> Av. San Martín 4453 - C1417DSE - Buenos Aires - Argentina</p></th></tr></tbody></table></th></tr></tbody></table></td></tr><tr><td style="font-size:0px;height:8px;line-height:0"> </td></tr></tbody></table></div></div></div></div></div></div></div></div></div></div></div></div></div></div><br></div>
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