杂草稻与栽培稻形态特征区别研究

Study on the morphological characteristics of weedy rice and cultivated rice

近年来,杂草稻在稻田呈蔓延趋势,稻田中杂草稻的大量存在对栽培稻产量及品质造成危害,进而造成严重经济损失。为指导农民区分杂草稻与栽培稻并及时防治,文章对杂草稻的形态特征进行研究。结果表明,杂草稻不完全叶长于松粳系列品种的栽培稻,与龙稻系列和东农系列的栽培稻无差异;有叶舌、叶耳及叶毛,与栽培稻无差异;杂草稻有芒,呈褐色、黄色、紫色,长26~79 mm,栽培稻无芒或芒很短;杂草稻的颖壳色有褐色、稻草色、黄带黑斑等多种颜色,栽培稻的颖壳呈黄色;千粒重较栽培稻轻。

In recent years,the trend of weedy rice in rice fields was spreading,the presence of a large number of weedy rice in paddy field on cause serious harm for yield and quality of cultivated rice and resulted in severe economic losses.In order to guide the farmers how to distinguish weedy rice and cultivated rice for controlling,the morphological characteristics of weedy rice were studied.The results showed that the first leaf of weedy rice was longer than that of Songjing series and as long as Longdao series and Dongnong series;they all had ligule,leaf ear and leaf hairs;weedy rice had mango with brown,yellow or purple,and the length was 26-79 mm,cultivated rice was awnless or very short;glume color of weedy rice was brown,straw color,yellow black and other colors,the glume color of cultivated rice was yellow;1000-grain weight of weedy rice was lighter than that of cultivated rice.