含斑茅和割手密血缘的甘蔗杂交后代（ F₁ ）对黑穗病的抗性鉴定与评价

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中图分类号：S435.661 文献标志码：A

Identification and Evaluation of Resistance to Sugarcane Smut in Sugarcane Hybrids （F1） with Germplasm of Saccharum arundinaceum and S. spontaneum

， ， ZHU Kai， LI Haibi， ZHOU Shan， ZHOU Hui，LIU Xihui*， WEI Jinju

Sugarcane Research Institute， Guangxi Academy ofAgricultural Sciences /KeyLaboratory ofSugarcane Biotechnology and Genetic Improvement （Guangxi）， Ministryof Agriculture andRural Afairs/Guangxi Key Laboratoryof Sugarcane Genetic Improvement， Nanning， Guangxi 530007， China

Abstract： Sugarcane smut disease is one of the most serious diseases afecting sugarcane，and resistant breeding is the most economicaland efective measure for its control. Inthis study，two inoculation methods （puncturing inoculation and dipping inoculation） were adopted to identify the smut resistance of Saccharum complex hybrid F1 with wild germplasm bloodlines.The results showed that among the 31 ASF1 materials tested by dipping inoculation，6 materials （accounting for 19.35% ） exhibited a comprehensive resistance level of high resistance （HR），4 materials （12.90%） showed resistance 1 （Rl），1 material （3.23%） presented resistance 2 （R2），2 materials （6.45%） displayed moderate resistance （MR）， 12 materials （38.71%） ）showed moderate susceptibility （MS）， 6 materials （19.35%） presented susceptibilityl（S1），no materials were clasifiedassusceptbility2（S2），highsusceptibility1（HS1）orhigh susceptibilityGade 2 （HS2）.In the puncturing inoculation test， 4 materials （12.90%） showed a comprehensive resistance level ofMR，9 materials （29.03%） showed MS，10 materials （32.26%） presented S1，6 materials （19.35%） showed S2，1 material （3.23%） 2 wasclassifiedas HS1 and another1 material （3.23%） asHS2，nomaterialswere identified asHR，R1 orR2.The incidence of sugarcane smut in 83.87% of the tested materials under puncturing inoculation was significantly higher than that under dipping inoculation.Moreover，the proportionof materials with a comprehensive resistance levelranging from HR to MR was 41.94% under dip inoculation，which was higher than the 12.90% under needle-prick inoculation. This study would provide innovative breeding materials for sugarcane smut-resistant breeding anda scientific basis for parent selection and matching.

Keywords： Saccharum complex hybrid F1 ； sugarcane smut disease; dipping inoculation; puncturing inoculation; resistance evaluation

DOI：10.3969/j.issn.1000-2561.2026.04.017

甘蔗黑穗病是广西乃至全国蔗区危害最严重的真菌病害之一，苗期或分蘖发病初期甘蔗叶片变细小，颜色淡绿，蔗茎变细，分蘖增多，最后从甘蔗梢头长出黑色鞭状物，导致甘蔗不成茎，造成蔗茎产量和产糖量的严重损失。（剩余20228字）