Start Date

2-12-2004 12:00 AM

Description

Soybean cyst nematode (SeN), Heterodera glycines, is a widespread pest of soybeans in Iowa. The nematode is estimated to be present in three out of every four fields in Iowa (Workneh et al., 1999). The nematode is a serious threat to soybean production because it reproduces very quickly, survives in the soil for many years in the absence of a soybean crop, and can cause substantial yield losses, particularly in dry years. Resistance is a very effective strategy for managing SeN, producing acceptable yields yet suppressing reproduction of the nematode. The number of soybean varieties with genetic resistance to SeN available in maturity groups I, II, and III has increased dramatically since the early 1990s (Figure 1). Today, most soybean seed companies have SeN-resistant soybean varieties available for Iowa growers (Tylka, 2004).

Share

COinS
 
Dec 2nd, 12:00 AM

Managing SCN with Resistant Soybean Varieties: It's Not Just About This Year's Yield

Soybean cyst nematode (SeN), Heterodera glycines, is a widespread pest of soybeans in Iowa. The nematode is estimated to be present in three out of every four fields in Iowa (Workneh et al., 1999). The nematode is a serious threat to soybean production because it reproduces very quickly, survives in the soil for many years in the absence of a soybean crop, and can cause substantial yield losses, particularly in dry years. Resistance is a very effective strategy for managing SeN, producing acceptable yields yet suppressing reproduction of the nematode. The number of soybean varieties with genetic resistance to SeN available in maturity groups I, II, and III has increased dramatically since the early 1990s (Figure 1). Today, most soybean seed companies have SeN-resistant soybean varieties available for Iowa growers (Tylka, 2004).

 

To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.