Evaluation of New Canal Point Sugarcane Clones
1997-98 Harvest Season

Table 10. Theoretical recoverable yields of 96° sugar (in metric tons per ha--TS/H) from first-ratoon cane on Dania muck, Lauderhill muck, Pahokee muck and Pompano fine sand

Clone	Mean yield by soil type, farm, and sampling date							Stability- safety index*	Mean yield, all farms
	Dania muck		Lauderhill muck			Pahokee muck	Pompano fine sand
	Knight 12/10/97	Okee- lanta 12/31/97	SFCW 12/8/97	Duda 1/22/98	Wedg- worth 2/6/98	SFCE 1/16/97	Lykes 11/27/96
CP 92-1666	18.228	19.204	21.724	21.129	18.684	20.336	14.010	0.059	19.045
CP 92-1435	15.824	20.145	22.316	19.357	19.733	21.123	11.365	-3.635	18.552
CP 92-1167	17.989	18.636	20.600	18.861	20.861	19.212	13.072	-3.843	18.462
CP 70-1133	16.269	20.634	22.248	17.691	15.356	19.730	11.644	-3.092	17.653
CP 92-1641	14.454	20.045	18.815	18.041	16.591	18.233	12.631	-3.063	16.973
CP 92-1607	13.864	20.551	20.748	18.684	15.877	16.284	11.878	-3.488	16.841
CP 92-1561	17.311	16.345	21.625	19.591	13.048	16.421	13.070	-5.557	16.773
CP 92-1213	16.793	20.039	16.543	19.763	17.603	18.085	8.077	-7.493	16.700
CP 92-1684	17.295	18.747	20.356	20.109	13.420	14.827	10.529	-4.677	16.469
CP 92-1640	16.992	17.818	19.190	18.565	11.837	14.579	12.384	-6.092	15.909
CP 92-1320	14.530	15.954	19.070	18.651	14.766	14.857	9.747	-3.769	15.368
CP 92-1647	11.753	15.243	14.156	16.633	8.334	14.337	9.197	-9.476	12.807
Mean†	15.942	18.613	19.782	18.923	15.509	17.335	11.467	-4.510	16.796
LSD (p=0.1)	2.656	2.054	2.989	2.754	1.914	2.443	2.388		1.495
CV (%)‡	20.018	13.261	18.153	17.488	14.829	16.932	25.018		17.756

*Stability-safety index for each clone is calculated at p=0.01 by Eskridge's method and use of Shukla's stability-variance parameter. To compare two negative indices, the index with the lower absolute value is the greater of the two.

†LSD for location means=1.065 TS/H at p=0.10.

‡CV=coefficient of variation.

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United States Department of Agriculture
Agricultural Research Service

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Original posting: April 19, 1999.