A field trial was carried out in Ferk6 2 Sugar mill located in northern Ivory Coast, in order to study sugarcane growth and yield response to deficit irrigation imposed over the yield formation stage. The crop used wa...A field trial was carried out in Ferk6 2 Sugar mill located in northern Ivory Coast, in order to study sugarcane growth and yield response to deficit irrigation imposed over the yield formation stage. The crop used was a first ratoon Co 957, a non flowering late season sugarcane variety. The experiment was completely randomized following a one-factor design with 4 water deficit treatments in 3 replicates. It came out that the optimum water deficit treatment reached 20%, i.e., 80% of crop water requirements were satisfied through irrigation. That treatment gave 7.9 kg cane/m3 or 0.98 kg sugar/m3 as irrigation water use efficiency. Relatively low crop growth rates （0.2-0.4 cm/day） as well as low cane yields （24.5-78.4 t/ha） were obtained as a result of an intensive and persistent dry season occurred over the yield formation stage. In line of prevailing climatic conditions, cane juice quality measured was particularly high on Co 957 which used to be a moderately performing variety in Ferk6 2 sugar mill.展开更多
To study the relations of certain morphological and sugar quality characters with sugarcane yield, an experiment was conducted at Wonji and Metehara Sugar Estates, Ethiopia between March 2012 and October 2013. The exp...To study the relations of certain morphological and sugar quality characters with sugarcane yield, an experiment was conducted at Wonji and Metehara Sugar Estates, Ethiopia between March 2012 and October 2013. The experiment, comprising of 400 sugarcane genotypes of which 174 were local that were collected from different regional states of Ethiopia and 226 introduced, was laid out in partial balanced lattice design with two replications. Data was collected on cane yield and its components, sugar yield and sugar quality traits. ANOVA, correlation and path coefficient analysis were done. Analysis of variance revealed significant differences (P < 0.01) for all the characters studied. Cane yield showed strong positive and highly significant (P < 0.01) correlation with millable cane number (r = 0.832), single cane weight (r = 0.528), stalk height (r = 0.517) and sugar yield (r = 0.987). There was also positive significant (P = 0.05) correlation of tiller count and cane diameter with cane yield. Path analysis revealed the highest positive direct effect of millable cane number (0.812) on cane yield followed by single cane weight (0.682) and pol percent (0.550). However, stalk diameter and brix percent had considerable negative direct effects and indirect positive effects through single cane weight on cane yield. Therefore, in view of their significant positive association with cane yield, indirect effects of stalk diameter and brix percent via single cane weight should be considered during selection. Genotypes should be selected on the basis of millable cane number, single cane weight and pol percent for getting higher cane and sugar yield.展开更多
为探究脱病毒种苗对果蔗的影响,本研究以广东黄皮果蔗为试验材料,进行了自留种、脱毒一代、脱毒二代果蔗种苗的田间性状和果汁品质的比较研究。结果表明,3种材料中,脱毒二代果蔗的田间生长状态最佳,与自留种和脱毒一代相比,其地上株高...为探究脱病毒种苗对果蔗的影响,本研究以广东黄皮果蔗为试验材料,进行了自留种、脱毒一代、脱毒二代果蔗种苗的田间性状和果汁品质的比较研究。结果表明,3种材料中,脱毒二代果蔗的田间生长状态最佳,与自留种和脱毒一代相比,其地上株高分别提高9.08%、5.80%(其中可食部分高度分别提高13.64%、7.19%),茎粗分别提高13.98%、9.71%,产量分别提高47.76%、63.72%(达到159.5 t hm^(-2)),出汁率分别提高3.64%、9.17%,蔗汁的总糖含量分别下降10.14%、12.73%;脱毒对果蔗蔗汁的密度、锤度和纤维含量无显著影响;脱毒苗第一代果蔗与自留种的产量和蔗汁品质无显著差异,脱毒组培苗作为第一代种苗可用于繁育脱毒果蔗种茎,3—4月份适宜移栽。因此,相对于一代组培苗,采用脱毒第二代种苗(脱毒第一代种苗种植收获的果蔗种茎)进行商品蔗种植效果更好,可促进果蔗田间生长,显著提高果蔗的产量。展开更多
文摘A field trial was carried out in Ferk6 2 Sugar mill located in northern Ivory Coast, in order to study sugarcane growth and yield response to deficit irrigation imposed over the yield formation stage. The crop used was a first ratoon Co 957, a non flowering late season sugarcane variety. The experiment was completely randomized following a one-factor design with 4 water deficit treatments in 3 replicates. It came out that the optimum water deficit treatment reached 20%, i.e., 80% of crop water requirements were satisfied through irrigation. That treatment gave 7.9 kg cane/m3 or 0.98 kg sugar/m3 as irrigation water use efficiency. Relatively low crop growth rates （0.2-0.4 cm/day） as well as low cane yields （24.5-78.4 t/ha） were obtained as a result of an intensive and persistent dry season occurred over the yield formation stage. In line of prevailing climatic conditions, cane juice quality measured was particularly high on Co 957 which used to be a moderately performing variety in Ferk6 2 sugar mill.
文摘To study the relations of certain morphological and sugar quality characters with sugarcane yield, an experiment was conducted at Wonji and Metehara Sugar Estates, Ethiopia between March 2012 and October 2013. The experiment, comprising of 400 sugarcane genotypes of which 174 were local that were collected from different regional states of Ethiopia and 226 introduced, was laid out in partial balanced lattice design with two replications. Data was collected on cane yield and its components, sugar yield and sugar quality traits. ANOVA, correlation and path coefficient analysis were done. Analysis of variance revealed significant differences (P < 0.01) for all the characters studied. Cane yield showed strong positive and highly significant (P < 0.01) correlation with millable cane number (r = 0.832), single cane weight (r = 0.528), stalk height (r = 0.517) and sugar yield (r = 0.987). There was also positive significant (P = 0.05) correlation of tiller count and cane diameter with cane yield. Path analysis revealed the highest positive direct effect of millable cane number (0.812) on cane yield followed by single cane weight (0.682) and pol percent (0.550). However, stalk diameter and brix percent had considerable negative direct effects and indirect positive effects through single cane weight on cane yield. Therefore, in view of their significant positive association with cane yield, indirect effects of stalk diameter and brix percent via single cane weight should be considered during selection. Genotypes should be selected on the basis of millable cane number, single cane weight and pol percent for getting higher cane and sugar yield.
文摘为探究脱病毒种苗对果蔗的影响,本研究以广东黄皮果蔗为试验材料,进行了自留种、脱毒一代、脱毒二代果蔗种苗的田间性状和果汁品质的比较研究。结果表明,3种材料中,脱毒二代果蔗的田间生长状态最佳,与自留种和脱毒一代相比,其地上株高分别提高9.08%、5.80%(其中可食部分高度分别提高13.64%、7.19%),茎粗分别提高13.98%、9.71%,产量分别提高47.76%、63.72%(达到159.5 t hm^(-2)),出汁率分别提高3.64%、9.17%,蔗汁的总糖含量分别下降10.14%、12.73%;脱毒对果蔗蔗汁的密度、锤度和纤维含量无显著影响;脱毒苗第一代果蔗与自留种的产量和蔗汁品质无显著差异,脱毒组培苗作为第一代种苗可用于繁育脱毒果蔗种茎,3—4月份适宜移栽。因此,相对于一代组培苗,采用脱毒第二代种苗(脱毒第一代种苗种植收获的果蔗种茎)进行商品蔗种植效果更好,可促进果蔗田间生长,显著提高果蔗的产量。
