【摘要】 以苏麦3号、扬麦158、安农8455、扬辐麦4号等对小麦赤霉病抗性不同的20个小麦品种或种质为实验材料,研究了小麦赤霉病抗性与株高(用多效唑控制)及穗部性状(小穗数、病小穗数、退化小穗数、小穗密度等)间的相关性。结果表明:株高明显影响小麦对赤霉病的抗性,植株较高材料的病小穗率较低;麦穗较长、小穗数少、小穗密度低的小麦材料的赤霉病抗性更好。更多还原

【Abstract】 Twenty wheat varieties or germplasm including Sumai 3, Yangmai 158, Annong 8455, Yangfumai 4, and so on, which had different responses to wheat Fusarium head blight(FHB) resistance, were used as test materials. The correlation between FHB resistance and plant height(controlled by polyazole), ear traits(spikelet number, diseased spikelet number, reduced spikelet number, spikelet density, etc.) was studied. The results showed that FHB resistance could be significantly affected by plant height, and the disease spike rates of high wheat were relatively low. Moreover, the materials with longer spikes, fewer spikelets and lower spikelets density degradation had better resistance to FHB.更多还原