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Poverty Alleviation Mode by Developing Sorghum Planting Industry in Dry-hot Valley Areas of Jinsha River in China:Taking Luquan Yi and Miao Autonomous County of Yunnan Province as an Example
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作者 Renyi YANG Zisheng YANG 《Asian Agricultural Research》 2019年第10期57-61,共5页
There are many state-level poverty-stricken counties in the dry-hot valley areas of Jinsha River in China,with a wide range of poverty and extreme degree of poverty.The industry-supporting poverty alleviation ranks fi... There are many state-level poverty-stricken counties in the dry-hot valley areas of Jinsha River in China,with a wide range of poverty and extreme degree of poverty.The industry-supporting poverty alleviation ranks first in the"five batches"of China's targeted poverty alleviation strategy.The practice of planting in Luquan County since 2017 shows that the valleys and slopes on the dry-hot valley areas of Jinsha River with an altitude above 1800 m have wide land suitable for sorghum planting,and suitable for introduction and planting.In recent years,the county has adopted the mode of enterprise+government+cooperative+poor household,introduced the Langzhitang wine factory,developed sorghum planting with large-scale,industrialized and specialized features to achieve stable income growth for the poor,and significant results have been achieved.Based on many field surveys,household surveys,and interviews with county and village leaders,this paper analyzes the specific practices and main effects of the county's poverty alleviation model by developing sorghum planting industry,aiming to provide necessary reference for the targeted poverty alleviation and poverty alleviation in similar areas of Yunnan Province and other provinces. 展开更多
关键词 Dry-hot valley area Industry-supporting POVERTY alleviation sorghum plantING POVERTY MODE Luquan COUNTY
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Evaluation of Plant Densities and Various Irrigation Regimes of Sorghum (Sorghum bicolor L.) under Low Water Supply 被引量:2
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作者 Ali A. Alderfasi Mostafa M. Selim Bushra A. Alhammad 《Journal of Water Resource and Protection》 2016年第1期1-11,共11页
Drought stress, during growth season along with plant density, is an important problem that needs attention. In order to investigate the influence of both factors in increasing the water use efficiency, field experime... Drought stress, during growth season along with plant density, is an important problem that needs attention. In order to investigate the influence of both factors in increasing the water use efficiency, field experiments were laid out in split-plot design at Agriculture Research Station, Collage of Food and Agriculture Sciences, King Saud University, to investigate the effects of irrigation intervals viz., irrigation every (6, 9 and 12 days) under different plant densities i.e., (6, 8 and 10 plants/m<sup>2</sup>) on growth, yield and yield component parameters as well as grain quality of sorghum local variety (Gizani). Results revealed that almost all growth, yield and yield component parameters were significantly influenced by both factors as well as their interaction. Chemical composition of seeds, leaf proline content and WUE were also considered. Severe drought stress condition caused gradual decrease in most of the growth characters as compared to watered treatment and reflected in decreasing yield and yield component characters. Increasing plant densities led to raise biomass production and seed yield per unit area and not able to compensated the low number and weight of grains per panicle. Contrary, low plant density, under adequate irrigation conditions, can be compensated by a high number of grains per panicle and high weight of the grain. Maximum seed yield per hectare was recorded by the interactional effects of most watered treatments (irrigation every 6 days) and plant density of 10 plants per square meter. 展开更多
关键词 sorghum plant Density plant Population IRRIGATION Water Use Efficiency Drought Stress
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Flat-sowing and Condensed Planting of Dwarf Sorghum in the Sanjiang Plain
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作者 Xiaohui SHEN 《Agricultural Science & Technology》 CAS 2017年第4期642-643,共2页
Sorghum is an important fodder plant. Its area is increasingly extending in Sanjiang Plain due to farm structure reform.The research reviewed environment conditions and climate characters of Sanjiang Plain and propose... Sorghum is an important fodder plant. Its area is increasingly extending in Sanjiang Plain due to farm structure reform.The research reviewed environment conditions and climate characters of Sanjiang Plain and proposed measures for dwarf sorghum dense planting in Sanjiang Plain, providing theoretical references for high-yield and highly-efficiency production of sorghum. 展开更多
关键词 Dwarf sorghum Condensed planting Cultivation technology
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Effects of Planting Density and Row Spacing on Plant Productivity of Autumn Forage Sweet Sorghum in Hebei Province
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作者 Hanzhang ZHOU Huan LIU +4 位作者 Haiyan JIA Zhimin WEI Shuhong YUAN Shenglin HOU Shunguo LI 《Agricultural Biotechnology》 CAS 2018年第1期44-49,54,共7页
[ Objective] This study was conducted to investigate the relationship between each of planting density and row spacing and plant productivity of forage sweet sorghum planted in autumn idle land. [ Methods] Using split... [ Objective] This study was conducted to investigate the relationship between each of planting density and row spacing and plant productivity of forage sweet sorghum planted in autumn idle land. [ Methods] Using split-plot experiment design experiment method and LSD method of IBM. SPSS. Statistics. v22 statistics software, the effects of planting density and row spacing on plant productivity of forage sweet sorghum planted in autumn idle land were compared. [ Result] The results showed that the planting density and row spacing had important influences on plant productivity of forage sweet sorghum planted in autumn idle land. Moreover, the optimal combination of plant productivity for A1B4 , i. e. ,under the combination of the planting density of 7.5 × 10^4 plants/hm^2 and the row spacing of 40 cm, the fresh weight and dry weight per plant were 654.37 and 147.11 g/plant, respectively. [ Conclusion ] The results provided a theoretical basis for the production of forage sweet sorghum in autumn idle land. 展开更多
关键词 Autumnidle land Forage sweet sorghum planting density Row spacing plant productivity
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种植模式与密度互作对高粱冠层结构及生产潜能的影响
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作者 刘洋 郑宏峰 +2 位作者 董明宇 王佳旭 侯志研 《辽宁农业科学》 2024年第3期33-36,共4页
以辽宁省农业科学院高粱研究所选育品种辽糯22为材料,设置等行距种植与宽窄行种植两种种植模式,97 500株/hm2、10 500株/hm2、11 250株/hm2、12 000株/hm2等4个种植密度,测定分析农艺性状、冠层结构特征、干物质积累、产量及产量构成因... 以辽宁省农业科学院高粱研究所选育品种辽糯22为材料,设置等行距种植与宽窄行种植两种种植模式,97 500株/hm2、10 500株/hm2、11 250株/hm2、12 000株/hm2等4个种植密度,测定分析农艺性状、冠层结构特征、干物质积累、产量及产量构成因素等指标。结果表明,提高种植密度增加了籽粒产量,降低了单穗粒重和千粒重,增加了高粱株高,降低了茎粗、穗长、茎叶夹角和叶片垂直率,与等行距种植相比,宽窄行种植模式叶片空间分布更合理,干物质积累和产量具有明显优势。 展开更多
关键词 高粱 宽窄行种植 冠层结构 农艺性状 产量
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高粱株高相关基因SbPH11分子标记的开发和应用
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作者 段国旗 吕娜 +7 位作者 石颖怡 张怀 李斌峰 侯留飞 许文秀 闫慧莉 何振艳 平俊爱 《植物遗传资源学报》 CSCD 北大核心 2024年第1期111-119,共9页
生物量是饲用高粱的重要性状,株高与生物量呈正相关性。本研究以237份高粱自交系关联群体为材料,筛选到株高关联基因SbPH11的两个功能性SNP位点,两个SNP位点组合的单倍型共3种:SbPH11-Hap1、SbPH11-Hap2和SbPH11-Hap3,SbPH11-Hap2所对... 生物量是饲用高粱的重要性状,株高与生物量呈正相关性。本研究以237份高粱自交系关联群体为材料,筛选到株高关联基因SbPH11的两个功能性SNP位点,两个SNP位点组合的单倍型共3种:SbPH11-Hap1、SbPH11-Hap2和SbPH11-Hap3,SbPH11-Hap2所对应的高粱材料的株高极显著高于SbPH11-Hap1和SbPH11-Hap3所对应的高粱材料的株高,SbPH11-Hap1的高粱材料株高极显著高于SbPH11-Hap3的高粱材料株高。针对SbPH11的两个功能性SNP位点开发了KASP分子标记,利用该标记对30份高粱种质资源进行了基因分型和表型验证,结果证实开发的KASP分子标记可以准确地鉴定出SbPH11两个功能性SNP位点的基因型。该KASP分子标记可高效准确地预测不同高粱种质资源的株高类型,可应用于高粱株高的早期筛选和分子标记辅助选择育种。 展开更多
关键词 高粱 株高 KASP分子标记 SbPH11
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4种全株高粱青贮的饲用价值评定
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作者 许家宝 王静 +7 位作者 张唯玉 陶薪燕 张月娇 张丹丹 程景 张亚伟 李博 张元庆 《动物营养学报》 CAS CSCD 北大核心 2024年第3期1997-2009,共13页
本试验在测定4种全株高粱青贮的常规营养成分及单宁含量的基础上,采用体外产气法和尼龙袋法对其饲用价值进行评价。选取4个品种高粱(晋糯3号、辽甜1号、晋杂2001和晋杂1531)制作全株高粱青贮饲料,开桶后测定其常规营养成分及单宁含量。... 本试验在测定4种全株高粱青贮的常规营养成分及单宁含量的基础上,采用体外产气法和尼龙袋法对其饲用价值进行评价。选取4个品种高粱(晋糯3号、辽甜1号、晋杂2001和晋杂1531)制作全株高粱青贮饲料,开桶后测定其常规营养成分及单宁含量。采用体外模拟瘤胃发酵和尼龙袋法测定4种全株高粱青贮不同发酵时间的产气量和干物质(DM)、粗蛋白质(CP)、中性洗涤纤维(NDF)和酸性洗涤纤维(ADF)消失率,并计算降解参数。结果显示:1)4种全株高粱青贮的淀粉、CP含量分别在10.94%~24.30%和4.50%~7.50%,不同品种之间均存在显著差异(P<0.05),但均以晋糯3号的含量最高,晋杂2001次之,辽甜1号最低。2)4种全株高粱青贮的72 h产气量、发酵液pH和总挥发性脂肪酸(TVFA)浓度均无统计学差异(P>0.05),但辽甜1号全株高粱青贮的发酵液乙酸浓度及乙丙比显著高于其他3个品种(P<0.05)。3)晋糯3号全株高粱青贮的DM消失率在48 h内显著高于其他3个品种(P<0.05),在72 h时显著高于晋杂1531和辽甜1号(P<0.05),且其DM有效降解率(ED)最高;而辽甜1号全株高粱青贮的CP、NDF、ADF消失率显著高于其他品种(P<0.05)。综上可知,晋糯3号全株高粱青贮营养成分含量高,且易于消化,具有较好的饲用价值。 展开更多
关键词 体外产气法 尼龙袋法 全株高粱青贮 营养成分 饲用价值
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宽窄行种植对高粱光合特性、产量和品质的影响
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作者 屈洋 马雯 +4 位作者 张飞 王可珍 苟飞凡 高小丽 冯佰利 《陕西农业科学》 2024年第4期32-36,共5页
以辽粘3号为试验材料,在宽窄行种植条件下(宽行60 cm、窄行40 cm),设置3个种植密度105000株/hm^(2)(WL),112500株/hm^(2)(WM),120000株/hm^(2)(WH),等行距种植(50 cm,种植密度120000株/hm^(2))为CK,研究不同种植密度条件下宽窄行种植对... 以辽粘3号为试验材料,在宽窄行种植条件下(宽行60 cm、窄行40 cm),设置3个种植密度105000株/hm^(2)(WL),112500株/hm^(2)(WM),120000株/hm^(2)(WH),等行距种植(50 cm,种植密度120000株/hm^(2))为CK,研究不同种植密度条件下宽窄行种植对高粱光合特性、农艺特性、产量和品质的影响。结果表明,不同处理叶片SPAD值综合得分和光合特性综合得分顺序为WL>WM>WH>CK。不同处理的株高、穗长、穗粒重和千粒重存在差异(P<0.05),其中WL处理的株高最高、穗长最长、穗粒重和千粒重最大。WL处理的产量与其他处理差异显著(P<0.05),两年平均产量8444.96 kg/hm^(2)。与CK相比,宽窄行种植可明显提高籽粒的单宁含量、淀粉含量和脂肪含量,但对蛋白质含量的影响较弱,WL、WM和WH处理的各品质指标差异不显著。相较于等行距种植,宽窄行种植可改善高粱叶片的光合性能,影响农艺性状和产量,在种植密度105000株/hm+2的条件下,辽粘3号宽窄行种植可在关中西部地区获得较大的产量优势。 展开更多
关键词 宽窄行种植 高粱 光合特性 产量 品质
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饲用高粱利用关键技术及效果评价 被引量:1
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作者 王佳 钟鹏 +6 位作者 姚爽 李旭业 吴宪 金永顺 朱中华 徐婷婷 王宇 《现代畜牧科技》 2024年第2期73-76,共4页
高粱作为一种优质的饲料原料,富含丰富的蛋白质、脂肪、碳水化合物、维生素和矿物质等营养物质,能满足畜禽生长的营养需求。高粱的适应性强,种植范围广,可以充分利用各种土地资源。此外,高粱的产量高,价格相对较低,经济效益显著。因此... 高粱作为一种优质的饲料原料,富含丰富的蛋白质、脂肪、碳水化合物、维生素和矿物质等营养物质,能满足畜禽生长的营养需求。高粱的适应性强,种植范围广,可以充分利用各种土地资源。此外,高粱的产量高,价格相对较低,经济效益显著。因此高粱在饲料产业中具有重要地位。该文通过对饲用高粱品种的选择和优化,栽培技术要点以及高粱饲料化利用的关键技术和效果评价,以期为高粱饲料产业化发展提供理论支持和实践指导。 展开更多
关键词 饲用 高粱 种植要点 关键技术 效果评价
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大豆高粱带状复合机械化精量种植技术
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作者 高顺平 张彦军 《农业技术与装备》 2024年第7期199-200,204,共3页
大豆高粱带状复合机械化精量绿色化种植技术,是集覆膜、穴播、覆土一体的带状复合种植栽培管理技术,可实现抗旱、保温、提墒、提高出苗率,降低投入,增加产出的目的。
关键词 大豆高粱带状复合种植 精量播种 栽培
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酿酒用糯高粱根内生溶磷菌的筛选及其促生性能研究
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作者 王新叶 李雷 +10 位作者 胡亚华 何欢 李红霞 李琼 赵亮 章刚容 潘琪 汤瑄 张埔涤 居文静 杨正烁 《生物技术进展》 2024年第5期832-838,共7页
酿酒用糯高粱生长过程需要大量的磷元素,缺磷会造成糯高粱的减产,但是化肥的大量施用会造成土壤肥力下降,为开发促进糯高粱生长的溶磷菌剂,使用溶磷圈法从糯高粱根内筛选具有溶磷功能的菌株,对获得的菌株进行菌种鉴定,并将该菌株制成菌... 酿酒用糯高粱生长过程需要大量的磷元素,缺磷会造成糯高粱的减产,但是化肥的大量施用会造成土壤肥力下降,为开发促进糯高粱生长的溶磷菌剂,使用溶磷圈法从糯高粱根内筛选具有溶磷功能的菌株,对获得的菌株进行菌种鉴定,并将该菌株制成菌悬液接种到糯高粱根部,测定糯高粱的生长指标,评估该菌株对糯高粱的促生长性能。从糯高粱根中筛选得到了6株溶磷菌,其中溶磷圈直径与菌落直径比值最大的是菌株GP4-1,为2.2。基于菌株16S rDNA序列的系统发育分析,GP4-1属于伯克霍尔德菌(Burkholderia sp.)。将GP4-1菌悬液接种到高粱幼苗根部30 d后,高粱幼苗的株高增加了4.46%,鲜重增加了19.69%,干重增加了100%,植株全磷含量增加了2.65%。糯高粱根内生菌GP4-1通过促进糯高粱植株对磷元素的吸收促进高粱的生长,为针对糯高粱的溶磷菌剂的开发和应用奠定了基础。 展开更多
关键词 糯高粱 溶磷菌 促植物生长
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甜高粱高效种植及收获机械技术示范推广
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作者 张智祎 王喜娟 《中国农机装备》 2024年第6期75-77,共3页
在介绍甜高粱种植技术的基础上,分析了机械化收获技术的优势,论述了技术示范推广的作用。随着机械化技术水平的不断提升,加大农机与农艺的融合度,进而提高甜高粱的生产效率和经济效益,对甜高粱机械种植和收获具有重要的指导意义。
关键词 甜高粱 种植技术 收获机械 农机农艺融合
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不同施氮量与种植密度对高粱产量及品质的影响综述
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作者 王海泽 王振国 +6 位作者 李岩 李默 徐庆全 崔凤娟 吕静波 崔天宇 邓志兰 《现代农业科技》 2024年第3期6-9,12,共5页
适宜的施氮量和种植密度可以改善高粱的群体结构和生长环境,从而调控高粱生理代谢过程。为了满足各产业领域对高粱产量和品质的要求,同时避免过量施用氮肥对生态环境产生的不利影响,本文详细地综述了不同施氮量与种植密度对高粱产量、... 适宜的施氮量和种植密度可以改善高粱的群体结构和生长环境,从而调控高粱生理代谢过程。为了满足各产业领域对高粱产量和品质的要求,同时避免过量施用氮肥对生态环境产生的不利影响,本文详细地综述了不同施氮量与种植密度对高粱产量、产量构成因素、品质(单宁、蛋白质、淀粉、粗脂肪含量)的影响,在保证高粱产量和品质的前提下,提出了相关改善高粱群体结构、提高氮肥利用效率的建议,以期为高粱的高产高效栽培提供参考。 展开更多
关键词 高粱 施氮量 种植密度 产量 品质
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内蒙古寒旱地区高丹草种植与利用研究
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作者 刘荣 张志刚 +5 位作者 黄凯 王少华 郭永川 刘亚淼 赵倩 王静 《养殖与饲料》 2024年第3期32-36,共5页
[目的]研究自美国引进的高丹草(AS6016)在我国内蒙古自治区寒冷及干旱地区的种植表现,为推动饲草产业健康发展及畜牧业转型升级提供科学依据。[方法]以呼和浩特市布和家庭农场、兴安盟公主岭牧场为试验地,分别进行旱区和寒区种植试验,于... [目的]研究自美国引进的高丹草(AS6016)在我国内蒙古自治区寒冷及干旱地区的种植表现,为推动饲草产业健康发展及畜牧业转型升级提供科学依据。[方法]以呼和浩特市布和家庭农场、兴安盟公主岭牧场为试验地,分别进行旱区和寒区种植试验,于2022年5月末实地种植高丹草(AS6016)53 hm^(2),分别于2022年8月、9月进行刈割,获取鲜草及干草试验样本,采用凯氏定氮法、索式浸提法等对粗蛋白、粗脂肪、糖分等营养成分进行检测,并进行了经济效益分析。[结果]确定高丹草(AS6016)最佳营养价值收获时间为拔节后期,该阶段收获并青贮后粗蛋白含量达11.78%、粗脂肪含量达1.91%,且产量与收益分别为同期青贮全株玉米的2.07、2.45倍。[结论]寒旱地区高丹草(AS6016)的种植与利用具有可行性,能够在保障草食畜产品有效供给、维护国家粮食安全上发挥重要作用。 展开更多
关键词 高丹草 寒旱地区 种植 营养成分 经济效益 粮食安全
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糯高粱叶中IAA产生菌的分离筛选及其促植物生长作用
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作者 王新叶 张敏 +5 位作者 田小龙 袁平 李红霞 罗贞标 岳倩倩 赵亮 《广西植物》 CAS CSCD 北大核心 2024年第10期1807-1816,共10页
糯高粱是白酒酿造的重要原料,其生长过程需要大量的化学肥料,作为环境友好型肥料,微生物菌剂有很广阔的应用前景。为开发对糯高粱生长有促进生长功能的微生物菌剂,该研究以糯高粱叶片为材料,分离筛选具有植物生长激素吲哚乙酸(IAA)产生... 糯高粱是白酒酿造的重要原料,其生长过程需要大量的化学肥料,作为环境友好型肥料,微生物菌剂有很广阔的应用前景。为开发对糯高粱生长有促进生长功能的微生物菌剂,该研究以糯高粱叶片为材料,分离筛选具有植物生长激素吲哚乙酸(IAA)产生功能的微生物菌株,基于菌株的16S rDNA保守序列对菌株进行系统发育分析,确定菌株的分类学地位;通过菌悬液浸种处理,分析菌株对糯高粱种子萌发的影响;通过盆栽实验,分析菌株对高粱幼苗生长的影响。结果表明:(1)从糯高粱叶片中分离筛选得到4株具有产IAA功能的微生物菌株,分别编号为HY1-1、HY1-2、HY1-3和HY1-4。其中,IAA单位浓度产生量最高的菌株是HY1-1,为2.56 mol·L^(-1)。(2)运用贝叶斯推断树对菌株16S rDNA进行系统发育分析,结果显示这4株菌都属于枯草芽孢杆菌(Bacillus subtilis)。(3)HY1-1、HY1-2、HY1-3和HY1-4都能促进糯高粱种子萌发,与对照组相比,经菌悬液浸泡的糯高粱种子发芽率显著提高了40.04%~165.52%,其中促进效果最明显的是HY1-1,种子发芽率提高了165.52%。(4)选取HY1-1菌株做盆栽实验,在糯高粱幼苗根部接种HY1-130 d后,糯高粱幼苗的株高显著增加了29.17%、全磷含量显著增加了5.12%;糯高粱根际基质中速效氮显著增加了31.70%,有效磷显著增加了28.88%。综上认为,糯高粱叶内生菌HY1-1能够通过分泌植物生长激素IAA以及为植物提供营养元素等方式促进糯高粱植株的生长。该研究结果为进一步开发促糯高粱生长菌剂提供了种质资源。 展开更多
关键词 植物内生菌 分离筛选 植物生长激素IAA 种子萌发 促高粱生长
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Sweet sorghum and Miscanthus:Two potential dedicated bioenergy crops in China 被引量:8
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作者 HU Shi-wei WU Lei-ming +2 位作者 Staffan Persson PENG Liang-cai FENG Sheng-qiu 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2017年第6期1236-1243,共8页
Among the potential non-food energy crops,the sugar-rich C4 grass sweet sorghum and the biomass-rich Miscanthus are increasingly considered as two leading candidates.Here,we outline the biological traits of these ener... Among the potential non-food energy crops,the sugar-rich C4 grass sweet sorghum and the biomass-rich Miscanthus are increasingly considered as two leading candidates.Here,we outline the biological traits of these energy crops for largescale production in China.We also review recent progress on understanding of plant cell wall composition and wall polymer features of both plant species from large populations that affect both biomass enzymatic digestibility and ethanol conversion rates under various pretreatment conditions.We finally propose genetic approaches to enhance biomass production,enzymatic digestibility and sugar-ethanol conversion efficiency of the energy crops. 展开更多
关键词 sweet sorghum MISCANTHUS bioenergy crops biofuels plant cell wall biomass saccharification ethanol conversion
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Phytoremediation Potential of Sorghum as a Biofuel Crop and the Enhancement Effects with Microbe Inoculation in Heavy Metal Contaminated Soil 被引量:2
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作者 Kokyo Oh Tiehua Cao +5 位作者 Hongyan Cheng Xuanhe Liang Xuefeng Hu Lijun Yan Shinichi Yonemochi Sachiko Takahi 《Journal of Biosciences and Medicines》 2015年第6期9-14,共6页
Phytoremediation is an eco-friendly and low-cost biotechnology using plants to extract, contain, degrade, or immobilize pollutants from the contaminated environment. Selection of the ideal plant species and suitable e... Phytoremediation is an eco-friendly and low-cost biotechnology using plants to extract, contain, degrade, or immobilize pollutants from the contaminated environment. Selection of the ideal plant species and suitable enhancing measures to obtain high remediation efficiency and large valuable biomass are essential requirement for a successful phytoremdaition. Sorghum (Sorghum bicolor L.) is one of the most attractive bioenergy crops for producing biofuels with high biomass production. In this study, the phytoremediation potential of sorghum to heavy metals and the promotion effects by a lead-tolerant fungus (LTF) were investigated using a multiple heavy metal contaminated soil with Pb, Ni, and Cu. The results showed that the sorghum survived the heavy contamination, and LTF inoculation promoted the plant growth and increased the phytoextraction yields of Pb, Ni, and Cu. The phytoextraction potential (μg/plant) of the whole sorghum for Sorghum were 410 (Pb), 74 (Ni), and 73 (Cu), and for Sorghum with LTF inoculation were 590 (Pb), 120 (Ni), and 93 (Cu), respectively. The results suggested that sorghum would be one of the ideal candidates for phytoremediation of contaminated soil because of its high phytoremediation potential, large biomass production, and utilization in biofuel production. 展开更多
关键词 sorghum PHYTOREMEDIATION Contaminated Soil HEAVY METALS BIOFUEL plants
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20%苯嘧磺草胺悬浮剂对高粱田一年生阔叶杂草的防效研究 被引量:3
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作者 宋伟丰 《中国农学通报》 2023年第14期110-114,共5页
高粱田的阔叶杂草对除草剂的抗性日趋严重,而能够用于高粱田的除草剂品种有限,导致阔叶杂草的防除比较困难,高粱的产量也受到了巨大影响。因此,生产中迫切需要筛选出对抗性阔叶杂草防效较好的除草剂。试验探讨了不同剂量20%苯嘧磺草胺... 高粱田的阔叶杂草对除草剂的抗性日趋严重,而能够用于高粱田的除草剂品种有限,导致阔叶杂草的防除比较困难,高粱的产量也受到了巨大影响。因此,生产中迫切需要筛选出对抗性阔叶杂草防效较好的除草剂。试验探讨了不同剂量20%苯嘧磺草胺悬浮剂对高粱田阔叶杂草苯氏蓼、反枝苋和藜的防效。结果表明,中高剂量(60、90 g a.i./hm^(2))20%苯嘧磺草胺悬浮剂对高粱田阔叶杂草防除效果较好,对阔叶杂草的鲜重防效最高可达97.75%,持效期可达30 d左右,并且对高粱安全,不影响产量,具有减施增效的特点。该试验结果能够为高粱田阔叶杂草的合理防除提供理论依据。 展开更多
关键词 高粱田 苯嘧磺草胺 株防效 鲜重防效 产量
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Genotypic Variation for Low Striga Germination Stimulation in Sorghum “Sorghum bicolor (L.) Moench” Landraces from Eritrea
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作者 Tadesse Yohannes Kahiu Ngugi +4 位作者 Emanuel Ariga Tesfamichael Abraha Nasser Yao Pauline Asami Monday Ahonsi 《American Journal of Plant Sciences》 2016年第17期2470-2482,共13页
Sorghum (Sorghum bicolour (L.) Moench), the second most important staple crop in Sub-Saharan Africa (SSA) after maize, is well adapted to marginal environments of drought stress and high temperatures. But besides drou... Sorghum (Sorghum bicolour (L.) Moench), the second most important staple crop in Sub-Saharan Africa (SSA) after maize, is well adapted to marginal environments of drought stress and high temperatures. But besides drought stress, the obligate root-parasitic flowering plant Striga hermonthica is an equally economically important biotic stress in agro-ecological zones where soils are marginal. Notwithstanding widespread and intense Striga infestation, genetic variations in defence mechanisms against the parasite have been reported. Sorghum variants, producing low levels of chemical stimulants such as sorgolactones that deter the advance of Striga seed germination and are therefore deemed resistant to the parasite, have been also reported in a few studies. But the existence of sorghum genetic variation for this resistance especially among farmers’ landraces is yet to be demonstrated. The objective of this study was therefore to determine the levels of Striga germination stimulants in response to each of the 111 collected sorghum landraces and their progenies from Eritrea. The ability of a sorghum genotype to cause germination of a Striga seed as a measure of the amount of the germination stimulant produced was used to assess the resistance of these accessions. The data were recorded as Striga germination percentage by counting the number of germinated Striga seeds. Landraces EG47, EG1261, EG830, EG1076, EG54 and EG746 with 14.68%, 15.32%, 11.85%, 13.05%, 15.74% and 16.5% germination percentages respectively were found to stimulate low levels of Striga germination percentage compared to commercial checks, IS9830, SRN39, Framida, with 22.46%, 22.67%, 23.27% germination respectively. While these variants did not show complete resistance against Striga seed germination, the low level production of stimulant indicated their high level of resistance to Striga . These results implied that these accessions are likely potential sources of resistance against Striga infestation in SSA sorghum breeding programs. 展开更多
关键词 ERITREA Landrace sorghum Striga hermonthica Striga Germination Stimulants Seed Parasitic plants
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基于Super-GBS的高粱株高和节间数QTL定位 被引量:2
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作者 徐建霞 丁延庆 +5 位作者 冯周 曹宁 程斌 高旭 邹桂花 张立异 《生物技术通报》 CAS CSCD 北大核心 2023年第7期185-194,共10页
株高及相关性状是影响高粱株型和产量的关键因素,定位影响这些性状的主效QTL,为高粱的分子遗传改良提供依据。以美国高粱品种BTx623和贵州酒用高粱品种红缨子杂交构建的包含205个家系的重组自交系(RIL)群体为材料,在5个环境条件下调查... 株高及相关性状是影响高粱株型和产量的关键因素,定位影响这些性状的主效QTL,为高粱的分子遗传改良提供依据。以美国高粱品种BTx623和贵州酒用高粱品种红缨子杂交构建的包含205个家系的重组自交系(RIL)群体为材料,在5个环境条件下调查株高和节间数。利用Super-GBS技术进行基因分型,建立SNP标记遗传图谱,采用完备区间作图法(ICIM)开展QTL定位。结果表明,在第1、3、4、8、9染色体上一共检测到18个QTL,其中,与株高和节间数相关的QTL分别为7和11个。有10个主效QTL在多个环境中或2个性状中被重复检测到,其中q PH9.1与已知的株高基因Dw1一致,而q PH1.2、qPH3.2、qIN3.2以及q IN8.1所在区间内包含了4个与影响水稻株高或节间伸长的基因同源。 展开更多
关键词 高粱 株高 节间数 QTL定位 候选基因
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