effects of different stocking densities and diets on the growth and survival rate of black apple snail (pila polita)

... decreasing growth irradiance as compared to φPS II The oxidation of the primary electron acceptor of PS II indicated by qP was more pronounced than the loss of φPS II, indicated by an increase in non-photochemical ... suit Other than this one instance, the results not indicate a clear separation in response to light acclimation The light response of the NPQ/qP ratio on the other hand did present a clear light ... DISCUSSION 4.1 Growth Light intensity strongly affected the development of Quercus alba seedlings during their first growing season, even though seedlings had been subjected to the same growing con-...

... focused on the dependency of the growth of seedlings of Dicorynia guianensis (an important tree in French Guiana) to both endomycorrhizal infection rate and light intensity available during the establishment ... run and that endomycorrhizal symbiosis is a key component of the seedlings However, extrapolating these results to the real conditions in the forest must be done with precaution because the light ... Bereau M., Louisanna E., Garbaye J., Effects of endomycorrhizas and nematodes on the growth of seedlings of Dicorynia guianensis Amshoff, a tree species of the tropical rain forest in French Guyana,...

... INTRODUCTION This report investigates the interaction nitrogen fertiliser and irrigation on the growth and nutrient relations of cherry seedlings and cuttings in the liner nursery and the ... even less information is available on the influence of irrigation on seedling nutrient relations and subsequent growth and survival after outplanting (Duryea and McClain, 1984) MATERIALS AND METHODS ... shoot mineral concentrations influthe concentration of any of the minerals in the stem and shoots (fig 4) Irrigation did not significantly (P> 0.05) ence Early in the season the concentrations of...

... ume, the effects of container density on the growth and survival of Douglas-fir seedlings after outplanting was studied in the fifth experiment In British nurseries, the height of of Corsican pine ... volume in governing seedling growth [9] There are, however, relatively few reports on the direct effects of seedling density on growth Container as in the absence of confounding effects of cell ... density Growth of Corsican pine at different densities was compared with Scots pine and Douglas-fir in the second and third experiments The interaction between cell volume and growing density on the...

... COLLEGE OF AQUACULTURE AND FISHERIES EFFECTS OF MAGNESIUM-PHOSPHORUS-POTASSIUM CONTAINING IN WATER ON MOLTING, GROWTH AND SURVIVAL RATE OF THE WHITE SHRIMP (Litopenaeus vannamei) JUVENILES, REARED IN ... remains until the next molting cycle Duration of the molting cycle depends on the species and age of the shrimp Molting frequency on white shrimp decreased along with increasing the size of shrimp ... observation of feeding activity of shrimp Salinity water was 2‰ Determination of molting intervals of shrimp: Molting of shrimp were recorded daily at 7~8:00 AM through the old shell in the net case Shrimp...

... CAN THO UNIVERSITY COLLEGE OF AQUACULTURE AND FISHERIES SUPER INTENSIVE CULTURE OF WHITE LEG SHRIMP (Litopenaeus vannamei), IN RECIRCULATING TANK SYSTEM AT DIFFERENT STOCKING DENSITIES BY LE PHUOC ... 2.2 .White leg shrimp (Litopenaeus vannamei) production in the world 2.3 .White leg shrimp (Litopenaeus vannamei) production in Viet Nam 2.4.Application of recirculating water system in white shrimp ... topic Super intensive culture of white shrimp (Litopenaeus vannamei), in a water circulation system at different stocking densities is needed to determine the sensible density and the growth rate...

... paths of secondary electrons and fluorescence photons at the absorption edges probed Information on the bulk of the film was provided by the TEY spectra at the Si K-edge and the FLY spectra at the ... aspects of the isochronal study as well as the acquisition of XANES data in the isothermal study KD participated in the acquisition and analysis of RBS data as well as the acquisition of XANES ... deposition J Appl Phys 1995, 77:6534 doi:10.1186/1556-276X-6-168 Cite this article as: Wilson et al.: Effect of thermal treatment on the growth, structure and luminescence of nitride-passivated silicon...

... on the growth and development ability of some imported soybean varieties and cultivation techniques for prospect variety in Thai Nguyen Research Objectives - Selecting the imported soybean varieties ... prospects for developing soybean production in Thai Nguyen - Determining and providing some soybean varieties that have good growth and development in spring and winter in Thai Nguyen - The study ... and marketing 3.2 Results of assessing growth and development of the imported varieties of soybean in Thai Nguyen 3.2.1 Results of assessing growth and development of the imported varieties of...

... mind, the present study was undertaken to determine the effect of double and triple inoculation (co-inoculation) of AM fungi with other rhizospheric microflora on the growth performance of A catechu ... or their combinations could have an important effect on nodulation and nitrogen fixation in legumes The principal effect of mycorrhiza on nodulation is P-mediated The combined inoculations of ... the results that all the inoculations had a higher P content of shoots and roots than the control P content of roots was higher than P content of shoots in all the inoculated seedlings of A catechu...

... proportion of limestone and amphibolite in the mixture was equal The crushed dolomitic limestone (56.7% of CaCO3 and 39.4% of MgCO3) contained 93.5% of particles smaller than mm in diameter and the pulverized ... LŐHMUS K., 2002 Biomass production and nutrient accumulation in short-rotation grey alder (Alnus incana (L.) Moench) plantation on abandoned land Forest Ecology and Management, 161: 169–179 URI V., ... a harsh mountainous environment, on the other hand it is an opportunity to introduce a broadleaved admixture there and thus to diversify the coniferous stands in terms of composition and structure...

... (pH) and promoting mineralization of SOM, on the other hand this treatment adds Ca cations into soil and thus increases the probability of the formation of insoluble Ca-phosphates The increased soil ... van Hees et al 200 3a, etc.) The SEB and BS in planting holes were also elevated by the application of basalt grit This elevation was not as pronounced as in the case of liming but it might have ... more valuable in qualitative terms, because also the K cations, in contrast to liming, surely participated in it The increased CEC as a result of liming and also basalt grit application is in line...

... observations on both seedlings and mature trees of D guianensis in French Guiana (Béreau and Garbaye, 1994) ance The analysis of variance of the data was first performed two-ways (four blocks and ... observed on two Caesalpinioideae, including Dicorynia guianensis Amshoff (local names: Angélique, Basralocus, Angelica Para, Tapiuna), an important timber species economically Thus, the aim of the ... (data not shown): the growth of seedlings of two other endomycorrhizal species of Caesalpiniaceae from the rain forest (Eperua falcata Aublet and Recordoxylon speciosum Benoist Norm and Mar) the...

... activities of study and evaluating the growth and development of some taro varieties on single-crop-land and lowland in Yen Bai province, finding out the most potential and suitable variety for the ... implemented the study titled "Research on the growth and development of taro varieties and cultivation techniques for the potential variety in Yen Bai province" 2 The purpose of study Through the activities ... 1: Studying the effect of climatic and land conditions to develop taro plant production in Yen Bai province - Content 2: Studying the growth and development of several taro varieties on single-crop-land...