搜索结果: 1-15 共查到“作物学 NO”相关记录48条 . 查询时间(0.117 秒)
为探究外源NO对盐胁迫下甜高粱种子萌发和幼苗生长的影响,以国能4号甜高粱为试验材料,采用不同浓度(0.05、0.1和0.2 mmol·L-1)硝普钠(SNP,NO供体)处理1.6%NaCl胁迫下的种子和幼苗,统计种子发芽数,测定幼苗叶片叶绿素、脯氨酸、可溶性糖、可溶性蛋白、丙二醛(MDA)含量及超氧化物歧化酶(SOD)、过氧化物酶(POD)、过氧化氢酶(CAT)和抗坏血酸过氧化物酶(APX)活性等...
外源NO对Ca(NO3)2胁迫下黄瓜幼苗生长和抗氧化系统的影响
一氧化氮 Ca(NO3)2胁迫 黄瓜 抗氧化系统
2013/9/3
本研究以黄瓜为试材,采用营养液水培,研究了外源NO对Ca(NO3)2胁迫下黄瓜幼苗生长和抗氧化酶系的影响。结果显示,在70mmol·L-1的Ca(NO3)2胁迫下,植株生长受到抑制,干重和叶绿素含量显著下降,叶片和根系抗氧化酶SOD、POD、CAT和APX活性均升高,膜脂过氧化产物MDA及可溶性蛋白含量增加。而叶面喷施NO供体SNP显著缓解了Ca(NO3)2胁迫对黄瓜幼苗生长的抑制,植株干重显著增...
恩施烟区雪茄烟BES NO H382引种播种期和移栽期试验初报
雪茄烟 播种期 移栽期 品质
2015/8/31
为了探讨雪茄烟BES NO H382的引种栽培技术，在恩施州进行了播种期和移栽期试验研究。结果表明，2月28日至3月8日播种是恩施来凤种植雪茄烟的最适宜播种期，4月30日至5月10日是最适宜移栽期。此为该品种雪茄烟在当地的推广应用提供了关键技术参考。
NO和H2O2依赖Ca2+/CaM信号调控马铃薯花青素积累
彩色马铃薯 NO H2O2 Ca2+/CaM信号 花青素
2013/9/3
以不同块茎颜色马铃薯品种陇薯8号、陇薯7号、LC310-2和山东彩肉为材料,研究外源NO、H2O2、NO+H2O2处理对马铃薯块茎花青素合成及其信号物质Ca2+-ATPase和CaM的影响。结果表明:外源NO和H2O2处理后,4个基因型马铃薯薯皮和薯肉花青素积累,Ca2+-ATPase活性升高,CaM含量增加,其效果为NO+H2O2>H2O2>NO>水(CK),并且花青素的积累量与Ca2+-ATP...
为探究NO对山葡萄耐盐性影响的生理机制,以1年生双丰山葡萄扦插苗为试材,采用营养液栽培方法,研究了外源NO供体硝普钠(SNP)处理对50 mmol·L-1 NaCl胁迫下山葡萄叶片叶绿素含量、叶绿素荧光参数和抗氧化酶活性的影响。结果表明,外源NO能显著提升盐胁迫下山葡萄叶片超氧化物歧化酶(SOD)和抗坏血酸过氧化物酶(APX)活性,减少丙二醛(MDA)的产生和积累,保护光合机构免受活性氧伤害,从而...
以浓度分别为0、0.01、0.1、1.0 mmol/L的硝普钠（Sodium nitroprusside, SNP; NO供体）处理玉米、小麦、花生、小白菜、萝卜、黄瓜的种子和幼苗，研究了以上几种浓度的SNP对作物种子萌发和幼苗生长及抗氧化酶活性的影响。结果表明：SNP对多数种子萌发影响表现为低浓度（0.01 mmol/L和0.1 mmol/L）促进，高浓度（1.0 mmol/L）抑制，其中对萝卜...
Tractor Power Requirement of No-Tillage Seeder under Different Cover Crop Residue Management
Cover crops No-tillage seeder Power requirement
2010/12/3
No-tillage with cover crop has great potential to improve soil quality, however, it is still not clear what no-tillage seeding technique should be used under cover crop residue mulch in upland crop pr...
外源NO对干旱胁迫下板蓝根叶片氧化损伤的保护作用
一氧化氮；板蓝根；干旱胁迫
2013/6/24
采用10%的聚乙二醇6 000对板蓝根(Strobilanthes cusia)叶片进行干旱胁迫处理8 d，并添加不同浓度的一氧化氮(NO)供体硝普钠(SNP)，研究外源NO处理对干旱胁迫下板蓝根叶片氧化损伤的影响。结果表明，随着干旱胁迫的加强，外源NO处理促进干旱胁迫下板蓝根叶片脯氨酸(Pro)积累和可溶性糖含量的提高，且低浓度的NO能提高SOD酶和POD酶的活性，而高浓度的NO则抑制这2种酶的...
以蚕豆(Vicia faba L.)为材料研究NO和Ca2+对蚕豆气孔运动及质膜K+通道的影响。结果表明，10 mmol L-1 Ca2+和100 µmol L-1 NO供体SNP均有效抑制气孔开放，NO清除剂c-PTIO不能缓解Ca2+抑制气孔开放，相反胞外加入0.1 mmol L-1 Ca2+可以明显加强NO对气孔开放的抑制程度，该现象可被La3+(Ca2+通道抑制剂)缓解。以膜片...
采用密闭箱法结合快速在线检测系统，研究了光氮对分蘖期水稻叶际NOx(NO、 NO2 )交换的作用机制。结果表明：1）在叶际NOx(NO、 NO2 )交换过程中，试验用水稻品种有显著NO净挥发和NO2净吸收效应； 在严密控光和室内自然光条件下，水稻NO净挥发速率分别为2.48和2.84 μg/(桶·h)，NO2 净吸收速率分别为0.116和0.175 μg/(桶·h)，且在环境空气NO浓度为200...
Erosion Control on a Steep Sloped Coffee Field in Indonesia with Alley Cropping,Intercropped Vegetables,and No-Tillage
Alley cropping Coffea arabica Coffee Erosion control Gliricidia sepium (Jacq.) Walp. Intercropped vegetables No-tillage Red acid soil
2009/7/29
In a hilly area in Lampung State, the southern end of Sumatra Island in Indonesia, coffee is commonly cultivated on hillsides with steep slopes and soil erosion affects sustainable coffee production. ...
Crop Production in Successive Wheat-Soybean Rotation with No-Tillage Practice in Relation to the Root System Development
Glycine max (L.) Merr. No-tillage Root length density Root distribution Soybean Triticum aestivum L. Wheat
2009/7/29
To elucidate the effect of no-tillage practice on the root system development and productivity in a wheat-soybean rotation system in Japan, we continuously cultivated these crops under tilled and non-...
Productivity and Water Source of Intercropped Wheat and Rice in a Direct-sown Sequential Cropping System:The Effects of No-tillage and Drought
Competition Crop rotation Deuterium Direct sowing Hydrogen stable isotope Intercropping No-tillage, Water use
2009/7/24
In Japan, wheat-rice crop rotation with the practice of rice transplanting has been quite popular in the past. Mechanized direct-planted wheat-rice sequential cropping was developed at the Aichi Prefe...
No-Tillage Enhanced the Dependence on Surface Irrigation Water in Wheat and Soybean
Deep root Heavy water Soil mechanical impedance Stable isotope Sustainable agriculture Water source Water uptake
2009/7/23
No-tillage often affects crop root development due to the higher mechanical impedance to root elongation, resulting in yield reduction under an unfavorable rainfall pattern, such as drought. In this s...
Effect of Winter Weeds on Growth and Yield of Direct-Seeded Rice in No-tillage Dry Paddy Field
Direct sowing culture of paddy rice Fertilizer No-tillage Rice Winter weeds Yield
2009/7/23
The effects of winter weeds on the growth and yield of direct-seeded rice (Oryza sativa L. cv. Akebono) were evaluated in a no-tillage dry paddy field where Alopecurus aequalis Sobol. var. amurensis (...