Field performance of experimental transgenic sugarbeet varieties resistant to Liberty or Roundup herbicides compared with standar

Field performance of experimental transgenic sugarbeet varieties resistant to Liberty or Roundup herbicides compared with standard commercial varieties at the University of Idaho Research and Extension Center at Kimberly, Idaho, 1999.

	Root Yield¹	Sugar Content	Gross Sugar	K	Na	Amino N	Recov. Sugar	Estimated Recoverable Sugar		Curly Top Rating²
	Root Yield¹	Sugar Content	Gross Sugar	K	Na	Amino N	Recov. Sugar	Estimated Recoverable Sugar		Curly Top Rating²
VARIETY	(T/A)	(%)	(lbs/A)	(meq/100g)	(meq/100g)	(meq/100g)	(%)	(lbs/T)	(lbs/A)	1999

ACH 211-Check^3,4	26.07	16.98	8855	44.39	15.24	28.13	15.85	317.0	8266	5.2
ACH 9903LL	26.32	17.38	9149	50.93	13.59	19.36	16.29	325.8	8577	4.9
ACH 9903LL Check⁴	26.21	17.15	8989	53.06	12.87	18.63	16.05	321.0	8413	4.9
Beta 7CG9236LL	27.96	17.13	9568	55.61	14.76	21.61	15.94	318.8	8901	5.8
Beta 7CG9236LL Check⁴	26.02	17.26	9027	55.02	15.48	20.84	16.08	323.4	8425	5.8
Beta 8422 Check^3,4	26.47	16.90	8948	52.18	16.33	23.94	15.71	314.2	8317	4.7
Beta 8757LL	27.59	17.23	9505	51.56	15.51	19.59	16.11	322.2	8888	4.9
Beta 8757LL Check⁴	28.02	17.34	9709	52.41	14.66	21.79	16.19	323.8	9065	4.9
HM 108 RR	30.47	16.98	10339	54.16	12.12	26.71	15.77	315.3	9601	4.8
HM 108 RR Check⁴	29.29	16.98	9944	51.97	12.46	27.06	15.79	315.8	9247	4.8
HM Owyhee Check^3,4	28.33	17.11	9693	47.24	9.58	19.38	16.11	322.3	9133	4.7
HM PM21 Check^3,4	27.82	17.03	9479	45.39	8.56	18.08	16.09	321.8	8957	4.6

Susceptible Check										6.4
US 41										4.7

LSD (0.05)	1.61	NS	565	2.96	2.37	3.55	NS	NS	541
LSD (0.10)	1.34	NS	472	2.47	1.98	2.97	NS	NS	452
CV (%)	5.8	NS	6	5.8	17.7	16.2	NS	NS	6.1
Pr>F	0.0001	0.3649	0.0001	0.0001	0.0001	0.0001	0.2495	0.2039	0.0001

When comparing yields of two varieties, the values must differ by a value equal to or greater than the LSD given at the bottom of each column. If they do not, then they were probably not different in this test. Replanted May 24, 1999; Harvested September 20, 1999. ¹ Root yields have been tared 5%. ² Curly Top Ratings: 0 = no curly top symptoms; 9 = plants killed. To calculate and compare the average curly top resistance of two or more varieties, use only those years data in which the compared varieties all have ratings. ³ Commercial check varieties, seed obtained locally. ⁴ All check varieties received 24.0 oz/A Progress, June 17. 27.0 oz/A Liberty or 32.0 oz/A Roundup applied to appropriate resistant varieties July 3 and July 10.