The study was performed with seven groundnut varieties/genotypes and F1s derived from crossing in all possible combinations without reciprocal among the mentioned varieties/genotypes. The objective was to assess wheth...The study was performed with seven groundnut varieties/genotypes and F1s derived from crossing in all possible combinations without reciprocal among the mentioned varieties/genotypes. The objective was to assess whether low Ca2+ content and Ca2+/Na+ ratio of leaf tissue or stem tissue determine salinity tolerance in terms of economic yield (kernel yield) in groundnut. It revealed that the varieties, “Binachinabadam-6”, “Binachinabadam-5” and the F1 G2 × G3 were most tolerant based on kernel yield under 8 dS/m and 10 dS/m salinity stresses. These two tolerant varieties and the F1 also showed lower Ca2+ and Ca2+/Na+ ratios in leaf tissue, which indicated lower Ca2+ and Ca2+/Na+ ratio of leaf tissue determined salinity tolerance in terms of kernel yield in Spanish type groundnut. These findings could be applied in future plant breeding applications for screening salt tolerant Spanish type groundnut genotypes.展开更多
This study investigates the influence of using ground palm oil fuel ash(G-POFA) from 10%-30% as cement replacement(by weight) on the cement mortar's pH under various curing conditions. These findings were suppleme...This study investigates the influence of using ground palm oil fuel ash(G-POFA) from 10%-30% as cement replacement(by weight) on the cement mortar's pH under various curing conditions. These findings were supplemented by thermal gravimetric analysis(TGA). Moreover, the resistance of G-POFA blended cement mortars to water absorption and sorptivity was determined. Further, the k-value test was carried out to explain the pozzolanic and filler behavior of G-POFA and to support the results obtained from TGA. It was found that there was no significant impact of several curing conditions on the pH of mortars. The mortar with 10% G-POFA in replacement of cement(G-POFA-10) exhibited the best resistance against water absorption and sorptivity.展开更多
目的:探讨苯并[α]芘染毒是否对新生幼鼠海马组织ATP酶及钙离子产生影响。方法:将120只(雌雄各半)新生4日(postnatal day 4,PND4)龄SD幼鼠随机分为5组:空白对照组、溶剂对照组(给予花生油)、低剂量苯并[α]芘(0.02 mg/kg)组、中剂量苯并...目的:探讨苯并[α]芘染毒是否对新生幼鼠海马组织ATP酶及钙离子产生影响。方法:将120只(雌雄各半)新生4日(postnatal day 4,PND4)龄SD幼鼠随机分为5组:空白对照组、溶剂对照组(给予花生油)、低剂量苯并[α]芘(0.02 mg/kg)组、中剂量苯并[α]芘(0.2 mg/kg)组、高剂量苯并[α]芘(2 mg/kg)组。将苯并[α]芘溶于花生油后,灌胃染毒,染毒时间自PND4持续到PND20。染毒期间,检测各组幼鼠的神经反射、神经肌肉发育情况及运动功能。染毒结束后,分光光度法检测Ca2+-ATP酶和Ca2+-Mg2+-ATP酶活性;荧光标记法测定海马突触内Ca2+浓度。结果:行为学结果显示:在PND12龄,中剂量苯并[α]芘组幼鼠平面翻正用时长于对照组(P<0.05);PND14,PND16龄时,高剂量苯并[α]芘组平面翻正用时明显长于对照组(P<0.05)。高剂量苯并[α]芘组的Ca2+-Mg2+-ATP酶和Ca2+-ATP酶活性明显低于对照组;随染苯并[α]芘染毒剂量的增加Ca2+-ATP酶活性降低(P<0.05)。中、高剂量苯并[α]芘组突触内Ca2+浓度明显高于对照组;突触内Ca2+浓度随着染毒剂量的增加有增加趋势(P<0.05)。结论:苯并[α]芘染毒导致海马组织ATP酶活性降低,突触内Ca2+超载,造成新生幼鼠神经神经发育损伤。展开更多
文摘The study was performed with seven groundnut varieties/genotypes and F1s derived from crossing in all possible combinations without reciprocal among the mentioned varieties/genotypes. The objective was to assess whether low Ca2+ content and Ca2+/Na+ ratio of leaf tissue or stem tissue determine salinity tolerance in terms of economic yield (kernel yield) in groundnut. It revealed that the varieties, “Binachinabadam-6”, “Binachinabadam-5” and the F1 G2 × G3 were most tolerant based on kernel yield under 8 dS/m and 10 dS/m salinity stresses. These two tolerant varieties and the F1 also showed lower Ca2+ and Ca2+/Na+ ratios in leaf tissue, which indicated lower Ca2+ and Ca2+/Na+ ratio of leaf tissue determined salinity tolerance in terms of kernel yield in Spanish type groundnut. These findings could be applied in future plant breeding applications for screening salt tolerant Spanish type groundnut genotypes.
文摘This study investigates the influence of using ground palm oil fuel ash(G-POFA) from 10%-30% as cement replacement(by weight) on the cement mortar's pH under various curing conditions. These findings were supplemented by thermal gravimetric analysis(TGA). Moreover, the resistance of G-POFA blended cement mortars to water absorption and sorptivity was determined. Further, the k-value test was carried out to explain the pozzolanic and filler behavior of G-POFA and to support the results obtained from TGA. It was found that there was no significant impact of several curing conditions on the pH of mortars. The mortar with 10% G-POFA in replacement of cement(G-POFA-10) exhibited the best resistance against water absorption and sorptivity.