"Overall the stacked varieties had higher yields, higher dollar return per acre, more bolls per plant and greater fruit retention than the Roundup Ready varieties tested," says Jeff Miller, product development agronomist for D&PL in Lubbock, Texas.

In the 26 sites tested, PM 2280 BG/RR was compared with PM 2200 RR, while PM 2326 BG/RR was compared to PM 2326 RR.

"The economic advantage of using Bollgard/Roundup Ready in a stacked configuration averaged $40.23/acre gross return across the tests," says Miller. "PM 2280 BG/RR had a $43.88/acre advantage over PM 2200 RR and PM 2326 BG/RR had a $30.51 advantage over PM 2326 RR."

In the yield area, the Bollgard/Roundup Ready stacked varieties averaged 87 lbs./acre increase over the Roundup Ready varieties. PM 2280 BG/RR outyielded PM 2200 RR by 82.3 lbs./acre, while PM 2326 BG/RR had a 38.4 lbs./acre increase over PM 2326 RR.

In other test areas, the Bollgard/Roundup Ready stacked varieties had an average increase of 0.5 bolls/plant, an eight-percent increase in total fruit retention, matured 1-2 days earlier and were approximately one-half inch shorter.

Delta and Pine Land Company is a commercial breeder, producer and marketer of cotton planting seed, as well as soybean seed, in the Cotton Belt. For more than 80 years, the Mississippi-based company has drawn from its diverse germplasm base to breed superior plant varieties. Delta and Pine Land has offices in seven states and facilities in several foreign countries and trades under the NYSE symbol DLP.

The full text of this and other presentations can reviewed at www.deltaandpine.com/html/beltwide