Navigation Links
Corn silage hybrids and seeding rates

MADISON, WI, AUGUST 11, 2011 -- Recent studies report that corn hybrids released in the late 2000s, especially Bt hybrids, require higher seeding rates than commercial hybrids released in the 1990s to reach maximum yields. Expectedly, corn seeding rates in the USA have increased significantly in the past 10 years. However, limited data is available on silage yield and quality responses of recently released hybrids to seeding rates.

Cornell scientist William Cox investigated the response of eight hybrids (three Bt and a non-Bt hybrid, two brown midrib and two silage specific Bt hybrids) to four seeding rates (25,000, 30,000, 35,000, and 40,000 kernels/acre). The study was conducted in 2008 and 2009 on a silt loam soil in New York. To determine if different hybrid types require different seeding rates for maximum yield and quality, Cox measured leaf area, biomass accumulation, silage yield and silage quality.

All hybrids responded similarly in growth, yield, and quality to seeding rates. Every hybrid had their highest crop growth rates at the 40,000 kernel/acre seeding rate during vegetative development. However, from the silking stage in late July to the early September harvest, the hybrids had similar growth rates each of the four seeding rates. This indicates that the seeding rates should not be increased for Bt hybrids or decreased for midrib hybrids.

Cox, who conducted the study, said that "results from this study should be applicable for corn silage production on silt loam soils in most northern regions of the USA. We did not experience any real drought or heat stress in either year of the study, however, so results should not be extrapolated to droughty soils or regions where temperatures are much higher than those encountered in the this study".


Contact: Sara Uttech
American Society of Agronomy

Page: 1

Related biology news :

1. Single gene dramatically boosts yield, sweetness in tomato hybrids, CSHL-Israeli study finds
2. Liposome-hydrogel hybrids: No toil, no trouble for stronger bubbles
3. If GMO genes escape, how will the hybrids do?
4. Potential hemlock hybrids tolerant to invasive hemlock woolly adelgid
5. Swiss Institute of Bioinformatics celebrates 10th birthday by presenting major gifts to human health
6. Experiment demonstrates 110 years of sustainable agriculture
7. Second lumpectomy for breast cancer reduces survival rates
8. Take advantage of reduced pre-registration rates for the IOF World Congress on Osteoporosis
9. Similar survival rates for Pacific salmon in Fraser, Columbia Rivers raises new questions
10. Nature study demonstrates that bacterial clotting depends on clustering
11. Sedimentary records link Himalayan erosion rates and monsoon intensity through time
Post Your Comments:
(Date:4/28/2016)... GOTHENBURG, Sweden , April 28, 2016 ... 1,491.2 M (139.9), up 966% compared with the first quarter of ... Operating profit totaled SEK 589.1 M (loss: 18.8) and the operating ... SEK 7.12 (loss: 0.32) Cash flow from operations was ... , The 2016 revenue guidance is unchanged, SEK 7,000-8,500 M. ...
(Date:4/15/2016)... CHICAGO , April 15, 2016  A ... companies make more accurate underwriting decisions in a ... offering timely, competitively priced and high-value life insurance ... health screenings. With Force Diagnostics, rapid ... and lifestyle data readings (blood pressure, weight, pulse, ...
(Date:3/31/2016)... 2016   LegacyXChange, ... "Company") LegacyXChange is excited to release its ... to be launched online site for trading 100% guaranteed ... will also provide potential shareholders a sense of the ... an industry that is notorious for fraud. The video ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... ... ... STACS DNA Inc., the sample tracking software company, today announced that Dr. ... STACS DNA as a Field Application Specialist. , “I am thrilled that Dr. ... STACS DNA. “In further expanding our capacity as a scientific integrator, Hays brings a ...
(Date:6/23/2016)... , June 23, 2016 Apellis Pharmaceuticals, ... 1 clinical trials of its complement C3 inhibitor, ... and multiple ascending dose studies designed to assess ... of subcutaneous injection in healthy adult volunteers. ... either as a single dose (ranging from 45 ...
(Date:6/23/2016)... 23, 2016 Andrew ... Published recently in ... journal from touchONCOLOGY, Andrew D Zelenetz , ... cancer care is placing an increasing burden on ... biologic therapies. With the patents on many biologics ...
(Date:6/23/2016)... ... June 23, 2016 , ... ... the Pennsylvania Convention Center and will showcase its product’s latest features from June ... be presenting a scientific poster on Disrupting Clinical Trials in The Cloud during ...
Breaking Biology Technology: