淮北地区夏玉米高产的适宜收获期研究  

Huaibei Area High Yield of Summer Corn Late Appropriate Period of Study

作　　者：吴兰云[1] 徐茂林[1] 周得宝[1] 陈洪俭[2] 陈现平[1] 李建花[1] 李金才[3] 

机构地区：[1]安徽省宿州市农科所,安徽宿州234000 [2]安徽省农科院,合肥230031 [3]安徽农业大学,合肥230036

出　　处：《中国农学通报》2010年第7期103-107,共5页Chinese Agricultural Science Bulletin

基　　金：国家(宿州)玉米综合试验站"安徽省玉米振兴计划"

摘　　要：为了探讨玉米适期晚收的增产效果,对淮北地区玉米主栽品种郑单958和农大108体积、粒重、水分和灌浆速度变化规律进行了研究。结果表明:在授粉前45天子粒湿体积增加较快,灌浆到55～60天湿体积达最大;2个品种的干体积随着灌浆的进行一直不断增加,干湿体积都反应农大108比郑单958子粒库容潜力大。郑单958灌浆前50天粒重增加较快,农大108灌浆前55天粒重增加较快,以后增加缓慢,授粉60天不再增加。2个品种灌浆的前30～35天水分变化较小,灌浆35天后水分开始迅速下降。2个品种授粉30～35天时灌浆速率最快,日增千粒重达9g以上;授粉后40～45天灌浆速率快速下降,呈越来越弱的趋势;同时也反映农大108比郑单958灌浆速度相对滞后,故农大108收获期还要晚些。综上所述,郑单958之类的中早熟品种在开花授粉后55天左右收获最好,即9月底—10月初收获,对中晚熟农大108之类品种,开花授粉后的60天左右收获最好,即10月上旬收获,各种指标和效益都能达到最大化。In order to explore the appropriate period of late corn yield, the test of the Huaibei region of maize varieties grown Nongda Zhengdan 958 and 108 size, weight, water and filling rate changes were studied. The results showed that in the 45 days before pollination wet grain size increased rapidly to 55-60 days of filling wetlands the size of the largest Tatsu; two species of stem volume with the conduct of grouting has been on the increase both wet and dry bulk reaction than Nongda 108 Zhengdan 958 grain storage capacity and great potential. Zhengdan 958 weight 50 days before grouting to increase faster, Nongda 108 grouting 55 days before the rapid increase in weight, after the increase in slow, 60 days no further increase in pollination. Two species of 30-35 days before grouting moisture less 35 days after filling the water began to decline rapidly. 30-35 days of pollination two species the fastest filling rate, grain weight by up to date more than 9 grams; 40-45 days after pollination filling rate decreased rapidly and increasingly weak; while reflecting Nongda108 than Zhengdan 958 filling rate relative lag, so Nongda 108 harvest period but also later. To sum up, Zhengdan 958 early-maturing varieties such as pollination in flowering about 55 days the best harvest, that is, by the end of September to early October harvest, on the late-maturing varieties such as Nongda 108, pollination flowering about 60 days after harvest the most well, that is harvested in early October, a variety of indicators and be able to maximize effectiveness.

关 键 词：淮北地区 夏玉米 适期晚收 

分 类 号：S513[农业科学—作物学]