Asian Journal of Botany(TRANSFERRED)

Abstract The effects of plant hormones and lignification on the cutting propagation of plants were studied. The effects of different concentrations of IBA, IBA and NAA and different lignification on the honeysuckle cuttings were studied. The rooting time, rooting rate, root length, bud height and leaf show. Based on the data obtained, the most suitable cutting plan was obtained. IBA and IBA, NAA and different lignification degrees did not have much effect on the rooting time and germination time of honeysuckle. 20mg / L IBA solution can increase the rooting rate of honeysuckle and 10mg / L IBA solution can improve the germination rate of honeysuckle. 30mg / L of IBA, NAA can increase the rooting rate of honeysuckle while IBA and NAA solution did not much effect on honeysuckle germination rate. The degree of lignification in the fourth section is more suitable for honeysuckle rooting and the first section is more suitable for honeysuckle germination. 40mg / L IBA solution can increase the root length of honeysuckle, 10mg / L IBA, NAA can increase the root length of honeysuckle and lignification in the first section can be better to improve the root length of honeysuckle.

Abstract The germination rate of wheat seeds was determined by TTC and eosin staining with wheat seed as experimental material. The activities of antioxidant enzymes (POD) and malondialdehyde (MDA), proline (MDA), and the activities of malondialdehyde (MDA) in wheat seedlings were determined by UV spectrophotometry. (Pro), glutathione (GSH) and H2O2, and the effects of drought stress on these physiological and biochemical indexes were obtained. The results showed that the activities of antioxidant enzymes (POD), malondialdehyde (MDA), proline (Pro), glutathione (GSH) and H2O2 in wheat seedlings increased under drought stress, drought stress, indicating that under drought stress, plants can synthesize their own needs to achieve the above drought to achieve the role of drought and these species can be used as indicators of drought resistance to plant drought evaluation of the plant.

Abstract The fern classification has undergone a series of improvements. At present, China is mainly used by Professor Qin Renchang in 1978. However, from the point of view of plant gametophyte, this classification system needs to be improved.

Abstract 摘要1

Abstract 摘要1

Abstract 摘要

Abstract 摘要

Abstract 摘要

Abstract The medicinal fern resources of Jian Feng Ling were classified and summarized based on the definition of plants’ medicinal properties and characteristics of ferns. Focuses of this study were the present situation of the medicinal utilisation of ferns in Jian Feng Ling and countermeasures as to further develop and utilise medicinal ferns resources.

Abstract The effects of different synthetic conditions on the yield of polyphenols in pomegranate seeds were studied by controlling the solvent concentration, liquid / liquid ratio and microwave heating power by microwave heating method using pomegranate seed as raw material and ethanol as solvent. The results showed that the yield of pomegranate seed polyphenols was 3.14% when the solvent concentration was 40%, the ratio of material to liquid was 1:20 and the power was 400 W.

Abstract The effect of rice growing season on the in vitro anther response of indica rice was investigated. Mean callus induction frequencies in six indica rice varieties during four growing seasons; yala 2012, maha 2012/13, maha 2013/14 and yala 2014 revealed that in vitro anther response can be improved up to five fold in some varieties (17.6%) when the donor plants are grown in the yala season compared to the maha season (p≤0.05). Analysis of climatic parameters (temperature, sun shine hours and rain fall) during the two growing seasons indicated that anther donor plants grown under stressful environmental conditions of the yala season produced a better in vitro anther response than plants grown under better environmental conditions in maha . Further, stressing anther donor plants by suppressing nitrogen fertilizer resulted in significant improvement in the anther response (p≤0.05). That is, plants stressed with half the recommended doses of nitrogen fertilizer produced a markedly enhanced anther response (10.38%) compared to the control (2.88%). The effect of nitrogen starvation on excised anthers was examined by suppressing different forms of nitrogen from the callus induction medium. Improved callus induction frequency (10.40%) could be observed when the anthers were cultured on standard N 6 medium with complete withdrawal of (NH 4 ) 2 SO 4 compared to the control (3.10%) (p<0.05). Starvation of anthers with half the concentration of NH 4 + in the medium also responded better than the control (5.44%). Therefore, inorganic nitrogen stress applied on-field and in vitro can be used as effective approaches for substantial enhancement of indica rice anther response.

Abstract 摘要1

Abstract Grape ( Vitis vinifera ) is a rich source of phenolic compounds widely grown   across the world. The aim of the present study is to evaluate the role Vitis vinifera   in protection of cellular compounds against reactive oxygen species modification. In addition this research was to evaluate and compare influence of H 2 O 2  and FeCl 2· 2H 2 O treatments on fatty acids, phytosterols, vitamins and glutathione contents of grape juice in Saccharomyces cerevisiae . The results indicate that, S. cerevisiae yeast synthesized biochemical compounds such as fatty acids, phytosterols, vitamins and glutathione in distinct quantities in a different culture environment. It was concluded that these differences in quantities of chemical compounds resulted from the fact that grape samples which were added to the growth-media of S. cerevisiae instead of glucose caused some differenced in these biochemical compounds synthesis. Different grape varieties contain varying ratios of substances as food content. Particularly a different carbon sources has an inhibiting or stimulating effect on enzyme activities which are responsible for fatty acids, phytosterols, vitamins and glutathione synthesis and cause a difference in these compounds quantities. 

Abstract Over the centuries, microalgae are untapped source of energy, in the recent years researchers have realized the potential of microalgae as an alternative source of renewable energy due to the alarming situation of fossil fuels. Several value-added products of industrial relevance can also be derived from microalgae during bioenergy production. Microalgae use as feed for animals, in aquaculture, cosmetics, natural dye, nutritional and therapeutic supplements such as β-carotene, polyunsaturated fatty acid (PUFA), polysaccharides, etc. Microalgae are also used in bioassay, biomonitoring and bioremediation solution. The present review focuses on industrial and commercial applications and potential areas for further research and development of microalgae for the benefit of society.  

Abstract The susceptibility of third instar Sesamia nonagrioides  to six strains of three entomopathogenic fungal species, i.e. Metarhizium robertsii , Beauveria bassiana  and Isaria fumosorosea , was tested under laboratory conditions. High virulence was recorded, ranging from 78 to 98% mortality, with the most profound effects being observed in treatments with B. bassiana , I. fumosorosea  and M. robertsii . The median lethal time (LT50) for L3 was 4.3days in M. robertsii  Elateridae, 4.1 days I. fumosorosea  Ag. Stefanos and 4 days in B. bassiana  Ige3. All three fungal species, especially I. fumosorosea , showed a high potential for the biocontrol of S. nonagrioides  larvae.

Abstract Stress is the nonspecific response of the body to any demand made upon it. The present study was designed to determine antistress activity of petroleum ether (BHP), methanolic (BHM) and aqueous extract (BHA) obtained from Benincasa hispida by anoxia stress tolerance, swimming endurance and immobilisation stress. Benincasa hispida subjected for extraction, standerdisation and preliminary phytochemical examinations.  The parameters like anoxia stress tolerance and swimming endurance time were recorded. The estimation of biochemical marker levels and determination of organs weight were carried out in immobilisation stress model. Pretreatment of BHM and BHA 100 mg/kg showed increase in anoxia stress tolerance time and swimming endurance time. BHM found to be more significant in this regard. Results were compared with diazepam 2 mg/kg. There was significant reduction in biochemical parameters like serum glucose, cholesterol and blood urea nitrogen levels exhibited by BHM. The stress induced increase in liver; adrenal gland weight and decrease in weight of spleen were significantly reversed by the BHM. The findings of the present investigations indicate that the BIM and BIA have significant antistress activity.

Abstract Cotton fiber constitutes the raw material for textile and clothing industry. This study shown the determine effect of certain flower morphological characters of cotton genotypes on cotton fiber traits. In this experimental used RCBD design with three replications for each sample. In the study, a total of 30 cotton ( G. barbadense  L. and G. hirsutum  L.) genotypes, were used as plant material. As our results, a positive correlation was determined between the fiber length and anther size (r = + 0.33), and stylus length (r = + 0.73), likewise a positive correlation between the fiber fineness and the distance from the upmost anthers to stigma (r = 0.22), and anther size (r = 0.26). Besides a negative correlation was obtained between the stylus thickness (r = - 0.18) and the ovarium width (r = - 0.18). As our results, since the anther size, stylus thickness, pollen size increase are the traits facilitating pollens’ reaching the stigma top and germinating and reaching the ovarium, positively influencing the fertilization.