| 李毅杰1，段维兴1，黄 志2，王泽平1，李文教3，韦开军4，陆文娟5，林善海1.广西甘蔗生长中期主要病虫害
发生与抗病性评价[J].广东农业科学,2016,43(6):127-131 |
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广西甘蔗生长中期主要病虫害
发生与抗病性评价 |
| Occurrence and evaluation of major diseases and insectpests on main sugarcane varieties in medium-termgrowth peroid in Guangxi |
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| DOI：10.16768/j.issn.1004-874X.2016.06.022 |
| 中文关键词: 甘蔗 枯心苗 黑穗病 花叶病 抗性 |
| 英文关键词: sugarcane dead heart smut mosaic resistance |
| 基金项目:国家现代农业产业体系建设专项（CARS-
20-2-3）；广西自然科学基金（2013GXNSFBA019068）；
广西农业科学院科技发展重点项目（桂农科2013JZ12）；
广西农业科学院基本业务专项（2015JM03）；广西农业科
学院博士科研启动经费 |
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| 摘要点击次数: 1950 |
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| 中文摘要: |
| 为明确广西蔗区病虫害的发生及对病害的抗性，2015 年在生长中期对8 个蔗区11 个甘蔗
主栽品种的主要病虫害进行调查，并对黑穗病和花叶病的田间抗性进行评价。结果表明：螟害枯心率为
0.00%～38.55%，其中桂柳2 号宿根蔗和柳城05-136 新植蔗在北海发生最严重，枯心率分别达到38.55% 和
37.66%。黑穗病发生率为0.00%～24.89%，所有调查品种宿根蔗黑穗病发生均较新植蔗严重。ROC22 对黑穗病
的抗性最差，表现为中感；桂柳2 号次之，宿根蔗发病率为7.45%，鉴定为抗病，其余9 个品种均为高抗。目前
广西蔗区甘蔗花叶病发生较轻，花叶病发生率为0.39%～7.73%。ROC22、桂糖42 号和桂柳2 号对花叶病表现
为中抗，其余8 个品种均为抗病。南宁和北海蔗区螟虫发生较为严重，甘蔗生长前期对螟虫抗性的田间评价体
系有待建立。ROC22 对黑穗病抗性最差，其余品种较好。广西蔗区花叶病发生较轻。黑穗病和花叶病的田间抗
性准确评价有待多年多点的观察。 |
| 英文摘要: |
| To determe the major diseases and insect
pests of sugarcane and the resistance to diseases，the
occurrence of major diseases and insect pests on 11 main
sugarcane varieties cultivated in 8 producing areas of
Guangxi during the medium-term growth peroid in 2015
was investigated，and the resistance to smut and mosaic
diseases in the field was evaluated. The results showed
that the dead heart rate（ DHR） ranged 0.00%-38.55%，new-planting of Guiliu 2 and ratoon of Liucheng 05-136 varieties were most serious in Beihai city，and the DHR were
38.55% and 37.66%，respectively. Smut disease rate ranged 0.00%-24.89%. sugarcane ratoon was more susceptible
than new-planting to smut in all investigated varieties. Variety ROC22 was most susceptible to smut and identified as
moderate susceptible. Guiliu 2 was the second susceptible and identified as resistance with smut disease rate 7.45%，
and the 9 rest varieties had high resistance. Sugarcane mosaic diseases were mildly occurred in Guangxi，the disease rate
ranged 0.39%-7.73%，ROC22，GT42 and Guiliu 2 expressed moderate resistance and the rests exhibited resistance.
Sugarcane destroyed seriously in Nanning and Beihai more than other producing areas. The evaluation system of variety
resistance to sugarcane borers expected to be constructed. ROC22 was most susceptible to smut，compared with other
main varieties. Mosaic diseases were minor in Guangxi. Accurate evaluation of the resistances to smut and mosaic should
comprehend the expression of multi-location and multi-year. |
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