论文部分内容阅读
渭单6000是陕西省2013年通过审定的第1个用于机械收获夏播玉米籽粒的新品种。专家组对夏播玉米1.14hm2渭单6000和847m2郑单958进行了籽粒机械现场收获鉴定。鉴定结果为:渭单6000和郑单958,倒伏率分别为0和3.6%;鲜籽破碎率分别为0.78%和4.00%;鲜籽含水率分别为25.6%和33.7%;鲜籽杂质率分别为1.23%和1.90%;产量分别为7 524kg/hm2和7 860kg/hm2;该品种的现场收获鉴定及对比示范和密度试验、性状表现证明,渭单6000在7.5万株/hm2密度时,生产水平与郑单958相当,在7.25万～9.00万株/hm2密度时,生产水平高于郑单958。而且该品种早熟、秆坚轴硬,抗倒耐腐、籽粒脱水快、鲜籽破碎率低、商品玉米优良,是适宜夏播玉米籽粒机械收获的优良新品种。
Weidang 6000 is the first new variety approved for mechanical harvesting of summer sowing corn in Shaanxi Province in 2013. The expert group conducted on-site grain harvesting identification of 1.14hm2 Wei-6000 and 847m2 Zhengdan 958 of summer sowing maize. The identification results were as follows: Weidang 6000 and Zhengdan 958, the lodging rates were 0 and 3.6% respectively; the breaking rates of fresh seeds were 0.78% and 4.00%; the fresh seed moisture contents were 25.6% and 33.7% 1.23% and 1.90%, respectively. The yields were 7 524kg / hm2 and 7 860kg / hm2, respectively. The varieties were field-harvested for identification and comparative demonstration and density test. The performance of the material proved that when Weichan 6000 was at the density of 75,000 plants / hm2, The level of Zhengdan 958 is equivalent to 72500 ~ 90000 plants / hm2 density, the production level is higher than Zhengdan 958. Moreover, the variety is precocious, its stalk hard axis, anti-down and decay resistance, fast dehydration of seeds, low broken rate of fresh seeds and good quality of corn are good new varieties suitable for mechanical harvesting of summer sowing corn.