Small Grains

 

Deep Planting

Mary E. Burrows, Montana State University, Plant Sciences and Plant Pathology
 Bill Grey, Alan Dyer, Jeff Stein and Ned Tisserat

 

Cause:  Environmental. 

 

Occurrence:  Seedling emergence. 

 

Key Symptoms: 

·         Skips or bare spots in the field

·         Slow seedling emergence

·         Excessive coleoptile elongation

·         Seedlings chlorotic

 

Problem:   The coleoptile is the embryonic leaf that penetrates the soil so the seedling can reach the surface.  Deep planting can slow emergence or cause stand establishment problems.  Varieties differ in their  coleoptile lengths.   Early planting in warmer soils reduces the ability of the coleoptile to elongate.

Management Approaches

Plant seed at proper depth.

 

Portions of this presentation were taken from Diagnosing Wheat Production Problems in Kansas  KSU Ag Exp Sta. publ. S-84

 

Categories: Small grains, Diseases, Color banding

 

Date: 04/26/07


Supported in part by:
Western Region IPM Center, EPA Region Vlll, National Plant Diagnostic Network, Great Plains Diagnostic Network, USDA CSREES, Colorado State University, Montana State University, South Dakota State University, the University of Nebraska - Lincoln,and the University of Wyoming.