The planting was performed on May 1, 2008 and the
plant-cane cultivation (18 months) was evaluated.
(2011) also found superior performance of TCH for the cultivars RB92579 (255.6 Mg [ha.sup.-1]) and RB72454 (191.6 Mg [ha.sup.-1]), in cultivation under conventional big gun sprinkler irrigation (total water depth of 1,396.6 mm),
plant-cane cycle and full irrigation, under the conditions of soil (dystrophic Yellow Argisol) and climate (rainy tropical) of Carpina-PE.
Stalk weights of CP 97-1944, averaged over the
plant-cane, first-ratoon, and second-ratoon crops, were 12.9% lower on organic soils and 17.1% lower on sand soils than the corresponding stalk weights of 'CP 70-1133' (Rice et al., 1978), the commercial check.
The mill cultivated one crop of
plant-cane and ratooned it once, before returning the holdings to the owners after the disruption of their subsistence farming.
Harvest of the first crop is called the
plant-cane crop, and successive crop harvests are called stubble crops.
Stalk weights of CP 97-1989, averaged over the
plant-cane, first-ratoon, and second-ratoon crops, were 7.3% lower on organic soils and similar on sand soils compared with the corresponding stalk weights of 'CP 70-1133' (Rice et al., 1978), the commercial check.
Stalk number of Ho 95-988 is 90% and stalk weight is 120% of LCP 85-384, when averaged across
plant-cane, first-ratoon, and second-ratoon crops.
CP 89-2376 was evaluated in eight yield trials in the 1993 to 1994 through the 1995 to 1996 harvest seasons (eight
plant-cane, eight first- and eight second-ratoon crops) on organic soils where its cane yield was 6.7% higher than that of CP 70-1133.
Stalk number of HoCP 96-540 is 90% and stalk weight is 125% of Louisiana's principal cultivar, LCP 85-384, when averaged over
plant-cane, first-ratoon, and second-ratoon crops.
CP 96-1602 was evaluated on organic soils at eight locations over a three-crop cycle (seven
plant-cane, eight first- and seven second-ratoon crops) where its cane yield (Mg cane [ha.sup.-1]) was 5.8% higher than that of CP 70-1133.
This overall gain was sustained by performance improvements in
plant-cane (0.79 kg [Mg.sup.-1] of cane [yr.sup.-1]), first-ratoon (0.82 kg [Mg.sup.-1] of cane [yr.sup.-1]), and second-ratoon (0.79 kg [Mg.sup.-1] of cane [yr.sup.-1]) crops.
Stalk weight of CP 96-1252, averaged across three crops (
plant-cane, first- and second-ratoon), was 93% on sand and 88% on organic soils of that of the commercial check, 'CP 70-1133' (Rice et al., 1978).