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Tag "corn development"

Indiana Corn: The ‘Zipper’ Pattern of Poor Kernel Set

Indiana Corn: The ‘Zipper’ Pattern of Poor Kernel Set

👤By Bob Nielsen, Purdue University Extension Agronomist 🕔Oct 13, 2017

The occurrence of severe photosynthetic stress (severe drought, extreme heat, severe nutrient deficiency, severe foliar disease) during or shortly after pollination in corn often results in poorly filled ears due to incomplete pollination or abortion of young kernels. Often such

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Ohio Corn: Ear Disorders Appearing in Fields

Ohio Corn: Ear Disorders Appearing in Fields

👤By Peter Thomison, Ohio State University Extension Specialist 🕔Oct 10, 2017

In recent weeks, I have received several reports of abnormal ear development in corn fields which are near or at harvest maturity. Affected plants in these fields exhibit varying degrees of ear development with little or no kernel formation. Some

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Iowa Corn: Grain Dry Down in Field From Maturity to Harvest

Iowa Corn: Grain Dry Down in Field From Maturity to Harvest

👤By Rafael Martinez-Feria, Mark Licht, and Sotirios Archontoulis, Iowa State University Extension Specialists 🕔Sep 20, 2017

Corn harvest is fast approaching. This year’s corn maturity is about 5-10 days behind normal. With field dry down occurring in late September and October this year, there is the potential for a later harvest of corn at a higher

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Ohio Corn: How Will Cool Weather Affect Dry Down?

Ohio Corn: How Will Cool Weather Affect Dry Down?

👤By Peter Thomison, Ohio State University Extension Specialist 🕔Sep 12, 2017

The recent cooler than normal temperatures may impact corn drydown. Once corn achieves physiological maturity (when kernels have obtained maximum dry weight and black layer has formed), it will normally dry approximately 3/4 to 1% per day during favorable drying

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Ohio Corn: Are Late Maturing Fields at Risk of Frost Injury?

Ohio Corn: Are Late Maturing Fields at Risk of Frost Injury?

👤By Peter Thomison, Ohio State University Extension Specialist 🕔Sep 12, 2017

According to the National Agricultural Statistics Service as of Sept. 10, 69 percent of Ohio’s corn acreage was in the dent stage (R5) compared to 76 percent for the five-year average; 16 percent of the corn acreage was mature, slightly less

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Texas Plains: Bollworms a Problem in Cotton, Sorghum; Diseases Flourish in Corn

Texas Plains: Bollworms a Problem in Cotton, Sorghum; Diseases Flourish in Corn

👤By Blayne Reed, Texas AgriLife Extension Agent for Hale, Swisher, and Floyd Counties 🕔Aug 31, 2017

General Status All apologies for this newsletter being late to those who faithfully look to this newsletter for regular pest status updates. In the mud and muck, not to mention school starting way too early for our labor needs, it

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Ohio Corn: Assessing the Success or Failure of Pollination

Ohio Corn: Assessing the Success or Failure of Pollination

👤By Peter Thomison and Rich Minyo, Ohio State University Extension Specialists 🕔Jul 26, 2017

Many Ohio corn fields have been subject to excessive rainfall this year. The fields where the Ohio Corn Performance Test (OCPT) were planted are no exception. Extraordinary rainfall accumulation has occurred at nearly all OCPT sites. Rainfall accumulations from May

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Mississippi Corn: Why Did Kernels Near the Ear Tip not Fill?

Mississippi Corn: Why Did Kernels Near the Ear Tip not Fill?

👤By Erick Larson, Mississippi State University Grain Specialist 🕔Jul 25, 2017

Incomplete kernel set is something you can’t ignore when you start peeling back husks to evaluate your corn crop this time of year.

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Pennsylvania Corn: Silking and Early Kernel Development

Pennsylvania Corn: Silking and Early Kernel Development

👤By Gregory Roth, Pennsylvania State University Agronomist 🕔Jul 19, 2017

Corn and soybeans have survived a rough spring with challenging weather and pest concerns but yield prospects have been improving during the last two weeks as we approached silking. Observations made during this time can help to determine stand health

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Indiana Corn: Silk Development and Emergence

Indiana Corn: Silk Development and Emergence

👤By Bob Nielsen, Purdue University Agronomist 🕔Jul 7, 2017

The corn plant produces individual male and female flowers (a flowering habit called monoecious for you corny trivia fans.) Interestingly, both flowers are initially bisexual (aka “perfect”), but during the course of development the female components (gynoecia) of the male flowers

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