云蔗03-194不同下种量及下种方式试验表现

Influence of Planting Method and Density on Economic Traits of Sugarcane Cultivar Yunzhe 03-194

以云蔗03—194为参试品种，在1月份下种，开展不同下种量及下种方式1新1宿田间试验。新植试验结果表明：不同下种量处理间，产量差异不明显，以5000芽／667m^2,6000芽／667m^2处理蔗茎产量最高；7000芽／667m^2、8000芽／667m^2处理茎径偏细，蔗茎产量较5000-6000芽／667m^2处理略减；3000芽／667m^2、4000芽／667m^2处理有效茎偏少、株高略矮，蔗茎产量较5000~8000芽／667m^2低；甘蔗品质变化没有明显规律；不同下种方式间．横（斜）排下种较常规下种蔗茎产量增563kg／667m^2、增6．61％，甘蔗含糖分提高0．17个百分点。宿根试验不同下种量处理间．产量差异不明显，以7000芽／667m^2蔗茎产量最高，对甘蔗品质的影响没有明显的规律：不同下种方式处理间，横（斜）排下种与常规下种蔗茎产量相当，甘蔗含糖分提高0．20个百分点。

Field experiments on the influence of planting method and density on the economic traits of sugarcane cuhivar Yunzhe03-194 were conducted at both plant and ratoon crops. The result indicated that a slight difference among the planting density with the highest cane yield was found in the treatments 5000 buds/ 667m^2 and 6000 buds/667 m^2; relatively thinner stalks and lower cane yield were observed in the treatments 7000 buds/667m^2 and 8000 buds/667 m^2; the treatments 3000 buds/667 m^2 and 4000 buds/667 m^2 produced the shortest plant height, the least millable stalks, and the lowest cane yield; the juice quality showed no difference among treatments. About plant methods, cane yield under cross/aclinic -with-row planting seeding increased by 563 kg/667m^2 （6.61%）, and increased by 0.17 percent of sugar content at plant crop, in comparison with conventional one. There was no difference between the two plant methods at ratoon crop, highest cane yield was found in the treatment 7000 buds/667 m^2. The cane yield between two plant methods was similar with an increase of 0.2 percent of sugar content by cross/aclinic -with-row planting seeding method.