不同垄高下雪茄烟根组织结构及根系与地上部生长动态变化  

Dynamic Changes in Root Tissue Structure and Root and Above-Ground Growth of Cigar Tobacco at Different Ridge Heights

作　　者：吴永兵 袁华恩 张瑛 陈泳纬 阳苇丽 何正川 赵铭钦 Wu Yongbing;Yuan Huaen;Zhang Ying;Chen Yongwei;Yang Weili;He Zhengchuan;Zhao Mingqin(Tobacco College of Henan Agricultural University/National Research Base of Tobacco Cultivation Physiology and Biochemistry/Key Laboratory of Tobacco Cultivation of Tobacco Industry,Zhengzhou 450046,Henan,China;Dazhou Branch of Sichuan Tobacco Company,Dazhou 635711,Sichuan,China)

机构地区：[1]河南农业大学烟草学院/国家烟草栽培生理生化研究基地/烟草行业烟草栽培重点实验室,河南郑州450046 [2]四川省烟草公司达州市公司,四川达州635711

出　　处：《作物杂志》2024年第3期148-155,共8页Crops

基　　金：中国烟草总公司四川省公司重点科技项目(SCYC202127,SCYC201913)。

摘　　要：研究垄高对雪茄烟根组织结构、根系与地上部生长动态变化的影响,结合调制后烟叶经济性状,为四川达州雪茄烟区选择适宜的垄高。采用随机区组试验,以川雪1号为试验材料,设置3个垄高水平,分别为高垄(HR,35 cm)、中垄(MR,30 cm)、低垄(SR,25 cm),分析各时期根组织结构、根系发育、地上部生长的变化规律及调制后烟叶经济性状。结果表明,雪茄烟生长过程中根组织细胞逐渐发育成熟,根系与地上部生长呈渐升趋势,且存在极显著正相关关系;HR较SR处理提高了根横切面积、中柱面积及导管数量,HR和MR处理提高了整个生育期的根系活力,提高了生长前期的根冠比,为地上部生长提供物质基础;HR和MR处理显著促进了生长中后期根系及地上部生长,提高了调制后烟叶经济效益。综上,在达州雪茄烟区高垄和中垄处理能够优化根组织结构,显著促进雪茄烟根系及地上部发育,提高烟叶经济效益。To study the effects of ridge height on the dynamic changes of root tissue structure,root system and above-ground growth of cigar tobacco,and to select the suitable ridge height for Dazhou cigar tobacco area in Sichuan in combination with the economic properties of the modulated tobacco,three ridge heights were set:high ridge(HR,35 cm),middle ridge(MR,30 cm)and shallow ridge(SR,25 cm),and the changes of root tissue structure,root development,aboveground growth and economic properties of the modulated tobacco were analyzed.The results showed that the root tissue cells gradually developed and matured during the growth of cigar tobacco,and the root system and aboveground growth showed an increasing trend and a highly significant positive correlation;the HR treatment increased the root cross-sectional area,mid-column area and the number of ducts compared with the SR,and HR and MR treatments improved the root vigor throughout the growth period and increased the root-shoot ratio in the early growth period,which provided a material basis for better aboveground growth.The HR and MR treatments significantly promoted the root system and aboveground growth in the middle and later stages of growth,which improved the economic efficiency of the modulated tobacco.In conclusion,the high and middle ridge treatments in Dazhou cigarette region could optimize the root tissue structure,significantly promote the root system and above-ground development of cigar tobacco,and improve the economic efficiency of cigar leaves.

关 键 词：雪茄烟 垄高 根显微结构 根系发育 地上部生长 经济性状 

分 类 号：S572[农业科学—烟草工业]