【摘要】 为提高糯玉米产量和品质，选用垦粘一号糯玉米品种，采用大田试验，在糯玉米幼苗期及吐丝期根灌不同浓度的黄腐酸硒，通过测量苗期至拔节期糯玉米的生长指标、叶绿素含量、根系活力，研究根灌黄腐酸硒对糯玉米生长发育的影响。结果表明，根灌不同浓度的黄腐酸硒对苗期及拔节期糯玉米生长发育有着显著的促进作用，株高、茎粗、根系数量、叶片光合色素含量、根系活力值等指标均高于CK对照组，其中对根系的促进作用最为显著。最终提高玉米穗长、籽粒干重、可溶性糖含量、可溶性蛋白含量等产量指标。综上，在糯玉米发芽期和吐丝期分别根灌22.50 kg·hm^-2黄腐酸硒的糯玉米苗期及拔节期的生长指标以及产量构成指标均显著高于CK,使糯玉米的产量略微提高的同时，显著提高了糯玉米籽粒的品质，是效果最佳的使用量。更多还原

【Abstract】 In order to explore the effects of root irrigation with selenium fulvate on the growth of waxy maize, Kennian 1 was selected and field experiment method was adopted. Through the same field management mode and the same amount of fertilization, waxy maize root irrigation with different concentrations of selenium fulvate at seedling stage and silk stage, the growth index, chlorophyll content and root activity of waxy maize from seedling stage to joint stage were measured. The effects of root irrigation with selenium fulvate on the growth and development of waxy maize were studied. The results showed that different concentrations of selenium fulvate in root irrigation significantly promoted the growth at seedling stage and jointing stage, and the indexes of plant height, stem diameter, root number, photosynthetic pigment content in leaves and root activity value were higher than those in CK control group, and the root growth was most significantly improved. Finally, yield indexes such as ear length, kernel dry weight, soluble sugar content and soluble protein content were increased. In conclusion, when 22.50 kg·ha^-1 selenium fulvate was applied by root irrigation of waxy maize during the germination period and the silk-making period respectively, the growth indicators and yield composition indicators of waxy maize at the seedling stage and the jointing stage were significantly higher than those of CK. While slightly increasing the yield of waxy maize, it significantly improved the quality of waxy maize kernels and was the most effective dosage.更多还原