大麦与谷类科学

为优化鲜食糯玉米的工厂化育苗技术，筛选适宜的育苗基质，以苏玉糯11和苏玉糯818为供试鲜食糯玉米品种，对三益农业基质（T1）、寿光恒先基质（T2）、大汉沃松基质（T3）栽培下糯玉米幼苗长势、根系和地上部干物质积累及根冠比等指标进行分析。结果表明，不同基质对鲜食糯玉米幼苗的影响不同，其中寿光恒先基质（T2）显著提升了2个糯玉米品种的地上部生长指标，平均株高较T1和T3处理分别高1.9%和4.0%，叶面积也分别增加4.9%和11.5%。而大汉沃松基质（T3）处理下2个品种的平均根系鲜质量较T1和T2分别提高57.1%和6.9%，干质量分别提升112.9%和71.6%，根冠比分别显著增加123.9%和96.3%。因此，在鲜食玉米工厂化育苗生产中可优先选择大汉沃松基质。

In order to optimize the industrialized seedling technology of fresh waxy corn and screen suitable seedling cultivation substrates, taking Suyunuo 11 and Suyunuo 818 as test varieties, this study analyzed the growth, dry matter accumulation of roots and aboveground, and the root-shoot ratio under Sanyi Nongye substrate(T1), Shouguang Hengxian substrate(T2) and Dahan Wosong substrate(T3). The results showed that different substrates had different effects on the seedlings of fresh waxy corn. Specifically, the Shouguang Hengxian substrate(T2) was superior to other substrates in improving the aboveground growth indexes of both varieties. For instance, the average plant height under T2 was 1.9% and 4.0% higher than that under T1 and T3 treatments, respectively, and the leaf area increased by 4.9% and 11.5%, while the Dahan Wosong substrate(T3) significantly increased root fresh weight by 57.1% and 6.9%,root dry weight by 112.9% and 71.6%, and root-shoot ratio by 123.9% and 96.3% compared to T1 and T2, respectively. Based on these findings, it is recommended to prioritize the Dasen Wosong substrate(T3) in the industrial seedling production of fresh waxy corn.