播种量和方式对甘肃渭源蒙古黄芪育苗质量和产量的影

doi:10.11686/cyxb2015565

草业学报 ›› 2016, Vol. 25 ›› Issue (7): 196-202.DOI: 10.11686/cyxb2015565

播种量和方式对甘肃渭源蒙古黄芪育苗质量和产量的影

米永伟, 蔡子平, 武伟国, 王国祥^*, 王宏霞, 彭云霞, 龚成文, 魏莉霞

甘肃省农业科学院中药材研究所,甘肃省中药材种质改良与质量控制工程实验室,甘肃兰州 730070

收稿日期:2015-12-14 修回日期:2016-01-26 出版日期:2016-07-20 发布日期:2016-07-20
通讯作者: 693120183@qq.com
作者简介:米永伟(1986-),男,甘肃永昌人,硕士。E-mail: mmyw1986@126.com
基金资助:
甘肃省农业科学院中药材重大科技创新专项(2013GAAS03-02),国家基本药物所需中药材种子种苗繁育基地建设(国中医药办规财发[2013]41)和甘肃省道地中药材产业科技攻关项目(GYC14-01)资助

Effect of sowing quantity and method on seedling quality and yield of Astragalus membranaceus var. mongholicus in Weiyuan, Gansu Province, Chin

MI Yong-Wei, CAI Zi-Ping, WU Wei-Guo, WANG Guo-Xiang^*, WANG Hong-Xia, PENG Yun-Xia, GONG Cheng-Wen, WEI Li-Xia

Institute of Chinese Herbal Medicines, Gansu Academy of Agricultural Sciences, Gansu Provincial Engineering Laboratory for Genetic Improvement and Quality Control of Chinese Herbal Medicine, Lanzhou 730070, China

Received:2015-12-14 Revised:2016-01-26 Online:2016-07-20 Published:2016-07-20

摘要/Abstract

摘要：

以陇芪2号为试验材料,采用不同播种量(90,150,210 kg/hm²)和播种方式(条播,撒播,覆膜穴播)两因素育苗,育苗结束后秋季测定种苗质量指标和产量,旨在揭示不同播种量和播种方式互作对蒙古黄芪种苗质量和产量的影响,为其规范化栽培提供依据。结果表明,不同播种量和播种方式交互条件下育苗,蒙古黄芪种苗个体质量和群体质量均存在显著差异。在90 kg/hm²最低播种量基础上,随着播种量的增加,种苗单根鲜重、根长和根粗等个体质量指标均呈降低趋势,种苗产量先极显著提高后下降,产苗数持续增加,优质种苗率显著下降。在同一播量条件下覆膜穴播方式育成种苗个体质量最优,优质种苗率均比条播和撒播高,并随播种量递增,苗产量较撒播和条播呈先增加后下降,而产苗数呈下降趋势。播种量150 kg/hm²条件下采用覆膜穴播育成单位面积优质种苗数最多。说明在保证种苗个体质量和单位面积产苗数的前提下,渭源蒙古黄芪育苗采用覆膜穴播方式,种子播种量为150 kg/hm²最佳。

Abstract:

The aim of this study was to determine the effects of seeding density and sowing method on the quality and yield of Astragalus membranaceus var. mongholicus, to provide the basis for a normalization-cultivation technique. We used the Longqi No.2 cultivar as the experimental material. The seeds were sown at three different densities (90, 150, 210 kg/ha) using four different sowing methods (drilling, broadcast sowing, plastic mulching, and hole sowing). Then, quality indicators and yield were measured at the end of the nursery cultivation. There was a significant effect of the interaction between the seeding density and sowing method on seedling quality parameters, both at the individual and the population scale. As the sowing density increased, single seedling fresh weight, root length, and root diameter tended to decrease, seedling yield first increased and then significantly decreased, and seedling number increased while the proportion of superior seedlings decreased significantly. Under the same sowing density, the plastic mulching and hole sowing methods showed the best performance, in that the proportions of superior seedlings were higher than those obtained using the drilling and broadcast sowing methods. As the seeding density increased, the seedling yield first increased and then decreased when the plastic mulching and hole sowing methods were used, but tended to decrease when the drilling and broadcast sowing methods were used. At the seeding density of 150 kg/ha, the largest number of superior seedlings per unit area was achieved using the plastic mulching and hole sowing methods. These results show that seeds of A. membranaceus var. mongholicus should be sown at a density of 150 kg/ha and cultivated using the plastic mulching or hole sowing methods for the best results in Weiyuan.

米永伟, 蔡子平, 武伟国, 王国祥, 王宏霞, 彭云霞, 龚成文, 魏莉霞. 播种量和方式对甘肃渭源蒙古黄芪育苗质量和产量的影[J]. 草业学报, 2016, 25(7): 196-202.

MI Yong-Wei, CAI Zi-Ping, WU Wei-Guo, WANG Guo-Xiang, WANG Hong-Xia, PENG Yun-Xia, GONG Cheng-Wen, WEI Li-Xia. Effect of sowing quantity and method on seedling quality and yield of Astragalus membranaceus var. mongholicus in Weiyuan, Gansu Province, Chin[J]. Acta Prataculturae Sinica, 2016, 25(7): 196-202.

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播种量和方式对甘肃渭源蒙古黄芪育苗质量和产量的影

Effect of sowing quantity and method on seedling quality and yield of Astragalus membranaceus var. mongholicus in Weiyuan, Gansu Province, Chin

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