Morphological and acoustic characteristics of two species of the genus occidozyga kuhn and van hasselt, 1822 (anura: dicroglossidae) in Viet NamConclusions Morphological and acoustic characters of two species were first described in Vietnam, Occidozyga lima from Van Long Wetland Nature Reserve (Ninh Binh province) and O. martensii from Dong Nai Culture and Nature Reserve (Dong Nai province). Two medium large species with half webbed toes, dorsum uniformly coloured, light dorsolateral ...
8 trang | Chia sẻ: hachi492 | Ngày: 25/02/2022 | Lượt xem: 12 | Lượt tải: 0
Comparison of several physiological and biochemical indexes in germinating seeds of two different acid-Resistant rice (oryza sativa l.) varieties om1490 and cr203 under the influence of the acid environment and acid environment plus KClO3 treated to seedsConclusions In germination phase: In comparison with rice variety CR203, variety OM1490 absorbed more water and faster. The germination ratio is similar in both varieties. The acid environment inhibits the water absorption and germination in both varieties, but the inhibition level is stronger in variety CR203. KClO3 diminishes the negative eff...
8 trang | Chia sẻ: hachi492 | Ngày: 25/02/2022 | Lượt xem: 13 | Lượt tải: 0
Advertisement calls and mating behaviour of chiromantis doriae (boulenger, 1803) (anura: rhacophoridae) from northwestern Viet NamEven though relationships were not statistically significant, a high proportion of the variation in call rate and total number of notes, may still be explained by air temperature, as reflected by a large regression coefficient. Variation of acoustic in the genus Chiromantis: Frogs of the genus of Chiromantis are generally small, arboreal inhabi...
7 trang | Chia sẻ: hachi492 | Ngày: 25/02/2022 | Lượt xem: 14 | Lượt tải: 0
The effect of using biogro fertilizer for reducing Cu and Zn content in brassica integrifolia grown in contaminated soilSimilar pattern of Zn accumulation in B. integrifolia was found as Cu accumulation. The applications of BioGro fertilizer reduce 17.8 to 27% Zn accumulation in leaf compared to that in control. Fertigation of BioGro fertilizer also had a positive effect to Zn accumulation, reduced from 19.5 to 41.3% to control. Moreover, the application of both ...
8 trang | Chia sẻ: hachi492 | Ngày: 25/02/2022 | Lượt xem: 18 | Lượt tải: 0
A comparative study on the root anatomical adaptation of different species in arecaceaeThere were a large number of metaxylem vessels in the stele (30.2 - 38.1 vessels per stele). The number of metaxylem vessels in Cocos nucifera was smaller than the other species (Figure 4B, P < 0.001). The density of metaxylem vessels in Cocos nucifera (4.2 ± 0.4 vessels/mm2 stele) was also smaller than Phoenix roebelenii (24.2 ± 3.9 vessels/mm2...
7 trang | Chia sẻ: hachi492 | Ngày: 25/02/2022 | Lượt xem: 12 | Lượt tải: 0
Characteristics of white adipose tissue shape and weight in the restricted high-fat diet-fed miceEffect of high-fat diet feeding on epididymal adipose tissue Previous studies have reported that increased inflammatory cytokines in obesity resulted in adverse effects on reproductive glands and leading to reduced reproductive ability in mice. This effect could result in changes in regulation of hormones that involve in control of spermgenesis ...
5 trang | Chia sẻ: hachi492 | Ngày: 25/02/2022 | Lượt xem: 15 | Lượt tải: 0
Study on some of biochemical changes during growth and development of taiwanese papaya fruit grown in Quoc Oai, Ha NoiAnalysis of vitamin C content in Taiwanese papaya in Figure 6 showed that the highest values were obtained at 15 weeks of age. The result indicates that the vitamin C content in papaya continues to increase as the fruit moves from physiological maturity to ripeness. This is in agreement with the findings of Abu-Bark et al. (2010) who studied asc...
7 trang | Chia sẻ: hachi492 | Ngày: 25/02/2022 | Lượt xem: 18 | Lượt tải: 0
Determination content of heavy metals in tea samples in Moc Chau district, Son La province, Viet NamThe content of Cu was 10.84 - 18.05 mg/kg. The lowest content of Cu was found in sample 5 (Hoa village, Tan Lap), while the highest content was found in sample 4 (Suoi Khem village, Phieng Luong). The copper content of this study is similar to that of Saad Antakli et al. for seven Vietnamese green tea samples, consumed in Syria (from 10.72 µg/g ...
8 trang | Chia sẻ: hachi492 | Ngày: 25/02/2022 | Lượt xem: 21 | Lượt tải: 0
Determination of the dissociation constants of ethylammonium and 2-Furoic acid in aqueous solution at 298.15K2.3. Discussion The known researches show that the dissociation constants will be determined exactly if the composition of sample is a buffer [7, 12]. Based on this conclusion, the pH > 10.0 (for ethylammonium) and pH < 4.0 (for 2-furoic acid) were chosen for calculating pKa values because observation on titration curve (Figure 1) indicate that...
10 trang | Chia sẻ: hachi492 | Ngày: 25/02/2022 | Lượt xem: 13 | Lượt tải: 0
Study on the esi mass spectra of a series of chelating platinum(II) complexes containing eugneolTable 2 and 3 show that two unambiguous rules for the formation of pseudomolecular ions in the mass spectra of P2 ÷ P10 have been established. Specifically, in the positive-ion mode the complexes P2 ÷ P8 bearing the monodentate amine tend to lose the amine ligand and combine together to create the neutral dimeric complex [Pt2Cl2(Eug)2] as descri...
7 trang | Chia sẻ: hachi492 | Ngày: 25/02/2022 | Lượt xem: 18 | Lượt tải: 0
