鲁西地区适宜机收玉米品种特征特性研究

Study on Characteristics of Maize Hybrids Suitable for Mechanical Harvesting in Western Shandong

选用当前鲁西地区广种玉米种登海605、伟科702、隆平206、农华101、聊玉23为试材,对其灌浆速率、脱水速率、收获时籽粒含水量、产量及适合机作特点进行研究。结果表明,不同品种具有不同的灌浆特性,产量较高的登海605、伟科702、聊玉23均具有较高的灌浆速率,但其变化趋势不同;各品种灌浆期脱水速率亦不同,农华101、聊玉23脱水速率较快,收获时含水量较低;机收时,农华101虽耗时较少,但籽粒损失率较高,登海605最低。

Selecting maize hybrids,Denghai 605,Weike 702,Longping 206,Nonghua 101 and Liaoyu23,widely cultivated in western of Shandong Province as materials,the grain filling rate,dehydration rate,kernel moisture content at harvest time,yield and characteristics suitable for mechanical harvesting were studied.The results showed that the grain filling rate was different between different maize hybrids.The maize hybrids with higher grain yield,Denghai 605,Weike 702 and Liaoyu 23,had higher grain filling rate,but their change trends were different.The grain dehydration rates were also different.Nonghua 101 and Liaoyu 23 had higher dehydration rate and lower kernel moisture content at harvest time.When mechanical harvesting,the Nonghua 101 was less time-consuming with the highest kernel loss rate,while Denghai 605 had the lowest kernel loss rate.