新引进甘蔗品种比较试验

为了探明新引进甘蔗品种的种性表现，采用品比试验方法，于2010-2011年在广东省增城市宁西华南农业大学基地进行新引进甘蔗品种比较试验。结果表明，在8个参试品种中，Q200B、Q189和Q208综合表现较好，表现为早熟或中早熟、高糖、稳产、宿根性好、农艺性状优良，新宿11月中旬至12月中旬平均蔗糖分含量分别为14.53%、15.11%和14.23%，分别比对照‘新台糖16号’降低0.44个百分点、提高0.14个百分点和降低0.74个百分点，分别比对照‘新台糖22号’提高0.03个百分点、提高0.61个百分点及降低0.27个百分点；蔗茎产量分别为110829 kg/hm2、105830 kg/hm2和92674 kg/hm2，分别比对照‘新台糖16号’增产29.1%、23.3%及8.0%，分别比对照‘新台糖22号’增产2.1%、减产4.3%和7.2%；含糖量分别为16110 kg/hm2、15999 kg/hm2和13186 kg/hm2，分别比对照‘新台糖16号’增糖25.4%、24.5%及2.6%，比对照‘新台糖22号’增糖0.4%、减糖0.2%和17.8%；Q155、Q151表现特早熟、高糖，但中小茎、蔗茎产量低；Q190表现丰产潜力大、前期生长极快，但迟熟低糖；Q157、Q96的综合表现最差。并对参试品种的利用意向提出了建议。

Comparative Trials of New Sugarcane Varieties Introduced from Australia

In order to research the characteristic performance of new sugarcane varieties introduced from Australia,variety comparative trials were carried out.According to the results from 2010-2011 variety comparative trials on paddy field in the test base of South China Agricultural University（located in Ningxi,Zengcheng City,Guangdong Province）,including one plant cane and one ratoon cane,Q200B,Q189 and Q208 were the best of all eight trial varieties in comprehensive characters with early maturity or mid-early maturity,high sucrose content,stable cane yield,strong ratoon ability and good agronomic characters.The mean sucrose content in cane,from middle November to middle December,of the three varieties mentioned above were 14.53%,15.11% and 14.23%,were lower 0.44%,higher 0.14% and lower 0.74%（absolute value） than those of ROC16（CK1）,respectively;were higher 0.03%,0.61% and lower 0.27%（absolute value） than those of ROC22（CK2）,respectively.The mean cane yield and sugar yield of Q200B,Q189 and Q208 were 110829 kg/hm 2,105830 kg/hm 2,92674 kg/hm 2 and 16110 kg/hm 2,15999 kg/hm 2,13186 kg/hm 2,increased by 29.1%,23.3%,8.0% and 25.4%,24.5%,2.6% in comparison with the control variety ROC16,respectively;increased by 2.1%,declined by 4.3%,7.2% and increased by 0.4%,declined by 0.2%,17.8% in comparison with the other control variety ROC22,respectively.Q155 and Q151 were very early maturity,high sucrose content,but smalland medium-sized stems,low cane yield.Q190 was a variety with high yield potential and better growth rate in the early growth stage,but late maturity and low sucrose content.Comprehensive characters of Q157 and Q96 were the worst in this trial.Intention to use of tested varieties had also been suggested in this paper.