陆国权
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- 姓名:陆国权
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海洋化学
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陆国权,博士,副教授,硕导,麦基尔大学博士后访问学者。曾出访近10个国家。从事甘薯等根茎植物研发20多年。曾主持或参加过50多个课题,获奖9项,发表论著120多篇,专著2本。授权专利3项,参与培育品种3个。
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陆国权, Melvin Sidikie George, Guoquan Lu, Weijun Zhou
Field Crops Research 77 (2002) 7-15,-0001,():
-1年11月30日
Field experiments were conducted to study genotypic variation for potassium uptake and utilization efficiency in sweet potato for 2 years. In 1997, a field experiment was conducted using 84 genotypes under no potassium fertilization. In 1998, two field experiments were carried out. In experiment I, eight good genotypes evaluated from the previous experiment were tested at two K application levels: 0 and 270 kg ha-1 of K2SO4. In experiment II, three special varieties with respect to pigment content were tested at five K levels from 0 to 600 kg ha-1. A split-plot design with three replications was used. Variation existed among genotypes in K concentration, accumulation and potassium efficiency ratio(KER) in the field. Among various plant parts, petiole contained the highest K concentration and storage roots had the highest K accumulation at maturity. These changed considerably with genotype and K level. KER had significant positive correlation with root weight per plant, root: top ratio and harvest index (HI); and significantly negative correlation with K concentration and accumulation in the roots or whole plant at maturity. Based on KER, genotypes were identified as efficient and inefficient in potassium utilization. Yield increased generally in all genotypes with K application. The increase, however, varied among different genotypes. It was also found from this study that the fertilizer level that gave the highest yield was K2 which is 300 kg ha-1 of K2SO4. The yield increase as a result of K application was mainly due to the increase in root: top ratio which led to greater amount of photosynthate translocation to the storage roots causing their increase in size. Most of the quality parameters tested increased with increasing levels of K nutrition. Root dry matter(%), Brix (%), carotene content, anthocyanin content increased with K application. The extent of increase, however, differed with genotypes. Protein cntent generally tended to reduce with increase in K level. The degree of reduction also varied with genotypes.
Sweet potato(, Ipomoea batatas L., ), , Potassium nutrition, Genotypic difference, Fertilizer efficiency, Fertilizer utilization efficiency
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陆国权, 唐忠厚, 郑遗凡
中国食品学报2006年8月第6卷第4期/Journal of Chinese Institute of Food Science and Technology Aug., 2006, Vol. 6, No. 4,-0001,():
-1年11月30日
采用扫描电镜、X-射线衍射和粘度测定等方法对甘薯、马铃薯和芋艿3种我国主要根茎作物淀粉的理化特性和糊化特性进行了研究,以便为其有效利用提供理论依据。结果表明:这3种根茎作物淀粉粒均有圆形、椭圆形和不规则多边形的形状,淀粉粒大小、分布、表面结构、晶体特性、淀粉成分和糊化特性作物间存在显著差异。而作物品种问差异较小。
淀粉, 理化与糊化特性, 马铃薯, 甘薯, 芋艿
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陆国权, 黄华宏, , 舒庆尧
作物学报2005年1月第31卷第1期92-96页/ACTA AGRONOMICA SINICA Jan., 2005, Vol. 31, No. 1, pp. 92-96,-0001,():
-1年11月30日
运用差示扫描量热分析仪(DSC) 和淀粉黏度速测仪(RVA) 分析了8 个高色素甘薯品种淀粉糊化特性的差异。结果发现:品种间直链淀粉含量存在一定差异,变幅为19.59 %~25.46%;DSC 分析所得糊化温度也表现一定差异,起始温度( To ) 、峰值温度( Tp ) 和终止温度( Tc ) 的变幅分别为59.84~70.87 ℃、69.73~78.20 ℃和79.85~83.62 ℃,糊化时热焓变化(ΔH) 的波动范围为11.70~13.83 J/g ;甘薯淀粉的RVA 谱具有较高的最高黏度和明显的崩解值,且最终黏度低于最高黏度,不同品种的RVA 谱差异明显,主要表现在各个黏滞性特征值上,其中热浆黏度(HV) 和最终黏度(FV) 的品种间差异较大。相关分析表明,直链淀粉含量与糊化特征值间的相关性均未达到显著水平,而Tp与To、Tp与Tc、Tp与ΔH、Tp与PV、Tp 与HV、Tp 与FV 间均存在显著正相关,说明Tp 是衡量甘薯淀粉糊化特性的重要参数。
甘薯, 淀粉, 糊化特性, DSC, RVA
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【期刊论文】甘薯维生素C 和胡萝卜素含量的基因型、环境及基因型与环境互作效应的分析
陆国权, 黄华宏, 何腾弟
中国农业科学Scientia Agricultura Sinica 2002, 35 (5): 482-486,-0001,():
-1年11月30日
为探明甘薯维生素C 和胡萝卜素含量的基因型与环境效应,精选11 个有代表性的甘薯品种(系) ,分别在5 个产地进行多品种多试点有重复的品质稳定性研究。结果表明,在随机效应中,甘薯维生素C 的试点效应最为明显,而胡萝卜素则以基因型与试点互作效应最为明显。这表明需针对甘薯不同品质特点筛选和确定不同品种所适宜种植的地区,或不同地区所适宜种植的品种,以实现优质品种优质生产目的。
甘薯, 维生素C, 胡萝卜素, 基因型×环境
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陆国权, 黄华宏, , 郑遗凡
中国农业科学Scientia Agricultura Sinica 2005, 38 (3): 462-467,-0001,():
-1年11月30日
采用差示扫描量热分析仪(DSC)和淀粉粘度速测仪(RVA)分析了3 个甘薯品种(系)在块根发育过程中淀粉糊化特性的变化。结果表明,随甘薯生育期的延长,3 个品种的淀粉率都呈下降趋势,但直链淀粉率的变化则因品种而异。早期收获,徐薯18 和浙大9201 的直链淀粉率表现较高,而浙3449 则较低。随生育期延长,DSC糊化峰向低温方向移动,且峰宽增大、峰逐渐消失,其糊化温度和热焓变化也随之递减,而RVA 的最高粘度则呈现递增趋势。相关分析发现,甘薯直链淀粉含量与各糊化特性参数间存在一定相关性,但这种相关性的大小又受到品种制约。
甘薯, 淀粉糊化特性, 生育期, DSC, RVA
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【期刊论文】不同肉色甘薯铁、锌、钙、硒有益矿物成分含量的产地差异注
陆国权, 王戈亮, 李娟
中国粮油学报2004年4月第19卷第2期/Journal of the Chinese Cereals and Oils Association Apr., 2004, Vol. 19, No. 2,-0001,():
-1年11月30日
用电感耦合等离子体原子发射光谱仪( ICP - OES) 测定了甘薯21个品种(系) 5个产地200多份样品中的铁、锌、钙、硒四种有益矿物质营养元素含量。结果表明:铁、锌、钙和硒四种矿物成分含量存在明显的基因型差异,其平均含量分别为38.97、49.02、889.70、0.1472mg/kg(干基) ,相应的变幅依次为1.97~167.86、11.68~245.40、37.63~1925.6 和0.01~0.51 mg/kg (干基) 。不同肉色甘薯铁、锌、钙和硒含量差异不显著;除铁外,锌、钙和硒含量产地间均存在显著差异。
甘薯, 矿物质成分, 产地, 薯肉色泽
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陆国权, Deya Eldeen Mohammed Radwan, , Khalaf Ali Fayez, Sabry Younis Mahmoud, Ahmed Hamad, Guoquan Lu
Physiological and Molecular Plant Pathology 69 (2006) 172-181,-0001,():
-1年11月30日
The effects of zucchini yellow mosaic virus (ZYMV) infection and pretreatments with salicylic acid (SA) on biomass accumulation of pumpkin (Cucurbita pepo cv. Eskandarani) were investigated. The response of photosynthesis, transpiration and the activities of antioxidant enzymes in leaves was also considered. Significant reductions in growth parameters (i.e. leaf area, biomass and shoot height), photosynthesis and chlorophyll a and b content were detected in ZYMV-infected leaves in comparison to healthy controls. Antioxidant enzyme activities were increased up to 3-fold for peroxidase (POD), 2-fold for ascorbate peroxidase (APX) and catalase (CAT) activities and 1.3-fold for SOD activity by virus infection. ZYMV infection also caused increases in H2O2 and malondialdehyde (MDA) contents. These results suggest that ZYMV infection causes oxidative stress in pumpkin leaves leading to the development of epidemiological symptoms. Interestingly, spraying pumpkin leaves with SA led to recovery from the undesirable effects of ZYMV infection. Leaves treated with 100 mM SA three days before inoculation had the appearance of healthy leaves. No distinct disease symptoms were observed on the leaves treated with 100 mM SA followed by inoculation with ZYMV. In non-infected plants, SA application increased activities of POD and superoxide dismutase (SOD) and inhibited APX and CAT activities. In contrast, SA treatment followed by ZYMV inoculation stimulated SOD activity and inhibited activities of POD, APX and CAT. In addition, MDA displayed an inverse relation, indicating inhibition of lipid peroxidation in cells under SA treatment. It is suggested that the role of SA in inducing plant defense mechanisms against ZYMV infection might have occurred through the SA-antioxidant system. Such interference might occur through inhibition or activation of some antioxidant enzymes, reduction of lipid peroxidation and induction of H2O2 accumulation following SA application.
Leaf growth, Photosynthesis rate, Pigments, Pumpkin, Salicylic acid, Zucchini yellow mosaic virus, Antioxidant enzyme activity, Gas exchange
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陆国权, Guoquan Lu, Huahong Huang, Dapeng Zhang
Food Chemistry 94 (2006) 632-639,-0001,():
-1年11月30日
A rapid predictive method based on near-infrared reflectance (NIR) spectroscopy (NIRS) was developed to measure sweetpotato starch physiochemical quality and pasting properties. The starch samples were scanned by NIRS and analyzed for quality properties by reference methods, respectively. Results of statistical modeling indicated that NIRS was reasonably accurate in predicting amylase content (AC), amylose percent (AP), total starch content (TSC), protein content (PRC), phosphorus content (PHC), solubility (SOL), swelling power (SP), average granule diameter (AGD), big granule percent (BGP), small granule percent (SGP), crystallinity (CRY), peak viscosity (PKV), hot paste viscosity (HPV), setback (SB), and pasting temperature (Ptemp) with high coefficients of determination (RSQ = 0.85–0.92) and relatively low standard errors of prediction. The results showed that NIR analysis was sufficiently accurate and effective for rapid evaluation of starch physicochemical properties in sweetpotato. The NIR-based protocol developed in this study can be used for screening large number of starch samples in food enterprises and sweetpotato breeding programs.
Sweetpotato, Starch, Physiochemical quality, Pasting property, Near-infrared reflectance spectroscopy
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陆国权
,-0001,():
-1年11月30日
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