Publications by authors named "Yun-Hung Kuang"
Background: Nilaparvata lugens (brown planthopper; BPH) is a significant rice pest in Asia, causing substantial yield losses. Pyramiding BPH resistance genes with diverse resistance traits into rice cultivars is an effective strategy for pest management. However, the response of pyramiding combinations to environmental changes remains unclear.
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- * Tests on rice near-isogenic lines (NILs) showed that different levels of nitrogen had variable effects on their resistance to the brown planthopper, with only some lines responding to nitrogen changes in specific ways.
- * Ultimately, while most NILs maintained resistance regardless of nitrogen levels, NIL-BPH17 stood out for its significant ability to inhibit the growth and reproduction of the brown planthopper.
Background: The impact of climate change on insect resistance genes is elusive. Hence, we investigated the responses of rice near-isogenic lines (NILs) that carry resistance genes against brown planthopper (BPH) under different environmental conditions.
Results: We tested these NILs under three environmental settings (the atmospheric temperature with corresponding carbon dioxide at the ambient, year 2050 and year 2100) based on the Intergovernmental Panel on Climate Change prediction.
Background: Outbreaks of insect pests in paddy fields cause heavy losses in global rice yield annually, a threat projected to be aggravated by ongoing climate warming. Although significant progress has been made in the screening and cloning of insect resistance genes in rice germplasm and their introgression into modern cultivars, improved rice resistance is only effective against either chewing or phloem-feeding insects.
Results: In this study, the results from standard and modified seedbox screening, settlement preference and honeydew excretion tests consistently showed that Qingliu, a previously known leaffolder-resistant rice variety, is also moderately resistant to brown planthopper (BPH).
Article Synopsis
- Taichung Native 1 (TN1) rice, developed in Taiwan, is crucial for agricultural research due to its semi-dwarf traits and role in identifying pest resistance.* -
- A study evaluated three TN1 accessions for genomic consistency and agronomic traits, finding that two were genetically identical, and all showed minor variations in certain physical traits.* -
- Results show that TN1 accessions have similar susceptibility to rice pests, confirming TN1's reliability for insect resistance studies in rice.*