Roddee Jariya, Wangkeeree Jureemart, Hanboonsong Yupa
School of Crop Production Technology, Institute of Agricultural Technology, Suranaree University of Technology, 111 University Avenue, Nakhon Ratchasima 30000, Thailand.
Innovation of Quality Enhancement of Agricultural Products for Agro-Industry-Research Center, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand.
Plants (Basel). 2024 Aug 18;13(16):2299. doi: 10.3390/plants13162299.
Understanding the settling preference, feeding behavior, honeydew production, and biophysical factors, such as trichome density, related to leafhopper infestation in sugarcane cultivation is crucial for effective pest management strategies. This study investigated these aspects across nine sugarcane cultivars. Significant variability was observed among cultivars in terms of settling behavior, with KK3 and LK92-11 showing the highest number of settled leafhopper adults. Similarly, honeydew production varied significantly among cultivars, with KK3 and LK92-11 exhibiting the highest production. Employing the electrical penetration graph (EPG) technique provided insights into distinct probing behaviors across cultivars, highlighting correlations between settling preference, honeydew production, and specific EPG waveforms. Principal component analysis (PCA) categorized cultivars into four groups based on settling preference, honeydew production, feeding behavior, and biophysical factors. Strong correlations were found between settling preference, honeydew production, and various EPG waveforms, while negative correlations were observed with the number of silica cells and rows per unit area, indicating their potential role in deterring leafhopper settlement. We concluded that TPJ04-768 and K84-200 are promising for resistance against leafhoppers and, thereby, can be exploited in sugarcane breeding programs with regard to resistance against insects.
了解与甘蔗种植中叶蝉侵染相关的栖息偏好、取食行为、蜜露分泌以及生物物理因素（如毛状体密度），对于制定有效的害虫管理策略至关重要。本研究对九个甘蔗品种的这些方面进行了调查。在栖息行为方面，各品种间存在显著差异，KK3和LK92 - 11上栖息的叶蝉成虫数量最多。同样，蜜露分泌在品种间也有显著差异，KK3和LK92 - 11的蜜露分泌量最高。采用刺吸电位图谱（EPG）技术揭示了不同品种间独特的刺探行为，突出了栖息偏好、蜜露分泌与特定EPG波形之间的相关性。主成分分析（PCA）根据栖息偏好、蜜露分泌、取食行为和生物物理因素将品种分为四组。发现栖息偏好、蜜露分泌与各种EPG波形之间存在强相关性，而与单位面积内硅细胞数量和行数呈负相关，表明它们在阻止叶蝉栖息方面具有潜在作用。我们得出结论，TPJ04 - 768和K84 - 200有望抗叶蝉，因此可在甘蔗抗虫育种计划中加以利用。
