OT lily （ Lilium＇ Oriental Hybrids＇ x Lilium＇ Trumphet Hybrids＇ ） ＇ Robina＇ varieties was used as materials, effects of the different concentrations （0, 20, 30, 40, 50 mg/L） of 5 - aminolevulinic acid （ALA） by leaf spraying on growth and development of lily, and physiological indexes such as biomass of lily, contents of malondialdehyde （MDA） , total soluble sugar, soluble protein, chlorophyll （ a, b）, and activities of superoxide dismutase （SOD）, catalase （CAT） and peroxidase （POD） of leaf were studied. The results showed that the fresh and dry mass of lily （leaf, stalk and flower）, contents of MDA, soluble protein and CAT activity of leaf were the highest with 50 mg/L ALA treatment, soluble sugar content and POD activity of leaf were the highest with 40 mg/L ALA, chlorophyll （a, b） contents of leaf were the highest with 20 mg/L ALA, and all significantly higher than that of the control. SOD activity of leaf was the lowest with 30 mg/L ALA and significantly lower than that of the control. Suitable ALA treatment could significantly affect the growth of cut flower lily ＇ Robina＇ seedlings.

         To investigate the deposition and elimination rule of dietary xanthophyll in tissue of yellow catfish （Peheobagrus fulvidraco ）, the experimental fish were fed with basic diet （BD） and xanthophyll supplementation diet （XD, the supplemental xanthophyll was 37.5mg/kg diet） by using four feeding strategies： A（BD 14 days ＋XD 42 days）, B（BD 28 days ＋XD 28 days）, C（BD 42 days ＋XD 14 days） and D（XD 56 days）, total xanthophyll content in tissues of fish was detected at the 14th, 28th, 42th and 56th day. The results showed that feeding strategy did not affect growth performance significantly. Xan- thophyll content in skin increased with the feeding time of XD, it reached the highest level at the 28th, 42th, 56th and 56th day as 1.63, 1.89, 2.09, 2.58 mg,/kg in group A, B, C and D respectively, which were significantly different （P 〈 0.05 ）. Xanthophyll contents in liver and muscle increased more slowly with time compared with that in skin, and reached the prominent level only after 42 days. There were different trends of xanthophyll content between tissues when the fish was fed with XD substituting BD： xanthophyll content in skin continued to increase or remained unchanged after 14 days, and decreased to the previous level in 28 day then continued to decrease in the next days. Xanthophyll content in liver and muscle decreased rapidly to previous level after 14 days. The results indicated that dietary xanthophyll deposition in skin was quick, but its elimination was delayed. On the contrary, xanthophyll deposition in liver and muscle was slow, but eliminated rapidly. The results indicated that temporary removing （14 -28 days） of dietary xanthophyll may not affect the total xanthophyll content in skin of Pel- teobagrus fulvidraco.

         An optimal extracting system in this study was established for resveratrol extraction from different peanut tissues, through the comprehensive analysis on light and heat stability of resveratrol, extracting solvent, extracting time and extracting method. The optimal resveratrol extracting system for peanut roots and stems included the ratio of liquid and material 25 ： 1, the material treated with 70% alcohol at room temperature for 24 h, the ultrasonic assistant extraction for 30 min, no direct sunlight in extraction and separation process, and the extraction temperature lower than 60 ℃. The recovery ratio of this method was 80. 89%. The resveratrol content in roots and stems of 30 peanut cuhivars was detected by high performance liquid chromatography （ HPLC ）. The result indicated that resveratrol content in root of BRl, MF06, Y29, ZF12, TSS and G9102 in flower stage was higher than that of others, ranging from 0. 031 6 - 0. 059 5 mg/g; the content in stems of ZF12, ZK61, GH10, MF06, BR1 and Y29 was higher than that of others, ranging from 0. 020 9 -0. 054 1 mg/g. Resveratrol content in root of BR1, G9102, Y29 at maturation stage was higher than that of others, ranging from 0. 047 6 -0. 355 9 mg/g; resveratrol content in stems of MF06, Y29, was a little higher than that of others, ranging from 0. 026 7 -0. 034 4 mg/g. The total resveratrol content in root and stem of MF06, ZF12 and BRlin flower stage was higher than that of others, with 0. 067 8, 0. 075 1, 0. 079 9 mg/g respectively ; The total resveratrol content in root and stem of MF06, Y29 and G9102 at maturation stage was higher than that of others, with 0. 095 3, 0. 372 6, 0. 374 8 mg/g respectively. As a whole, the resveratrol content in root and stem of peanut at maturation stage was higher than that of flower stage. G9102 and Y29 were expected as subsequent research materials.

        An investigation on pests on landscape plants was carried out in Jiaying University campus to understand the occurrence of main pests and provide the reference for the pest integrated management. The results showed that the pests belong to 2 classes, 7 orders, 49 families, 79 genera, 85 species, which damaged the leaves, roots, stems and other parts of plants by feeding the leaves, sucking juice and boring the branches and trunks. Both species and number of Lepidoptera were the highest, followed by Hemiptera, Orthoptera, Coleoptera, Acarina, Hymenoptera and Thysanopter. According to the damage way, the species and the number of leaf-feeding pests were most, followed by the juice-sucking pests, and the boring pest were least. Cheliden iumargentatum Dalman, Plagiodera versicolora Laicharting, Sinomegoura photiniae Takahashi, Anoplophora chinensis Forster and Daphnis nerii Linnaeus were the serious pests damaging the campus plants.

        For the development of C36 Dimer fatty acid （DFA） as a modifier or raw materials to make a new type of modified unsaturated polyester materials, DFA-EG polyester was synthesized by direct melt polycondensation method, with C36 dimer fatty acid （DFA） and ethylene glycol （EG） as raw materials, p-toluene sulfonic acid （TSOH） as catalyst. The resultant polyester structure was characterized by fourier transform infrared spectrum（FT-IR） and nuclear magnetic resonance （^1H-NMR）, the thermal performance was characterized by differential scanning calorimetry （DSC） and thermogravimetric analysis （TGA）, and the relative molecular mass and its distribution of DFA-EG polyester were characterized by gel permeation chromatography （GPC）. The results showed that when n （ DFA ） ： n （EG） ： n （ TSOH ） = 1 ： 1.4： 0. 016, reaction temperature 165 ℃ and reaction time 6 h, the esterifieation rate of polyester 99. 30% could be obtained. The weight-average molecular mass was 8 643 g/mol, relative molecular mass distribution was 1. 227 8. The initial thermal decomposition temperature and glass transition temperature of 380 ℃ and - 13.3 ℃ respectively. Therefore, the DFA-EG polyester can be used as a kind of green environmental protection block polyester base material.

        Establishing determination system with solid-phase extraction and gas chromatography mass spectrometry （GC-MS） for application of the determination of phthalatic acid esters （PAEs） in Pearl River of Guangzhou section. Conditions of solid phase extraction were optimized by the type of eluent, pH value of water sample and volume of eluent, GC-MS was used to quantitate and analyze 4 kinds of target materials, such as dimethyl phthalate （DMP）, diethyl phthalate （DEP）, dibutyl phthalate （DBP）, diethylhexyl phthalate （DEHP）. The results showed that, when the pH value of water sample was 2. 0, and 4 mL V （ methylene chloride） ： V （ ethyl acetate ） = 1 ： 1 was used as the eluent, the recovery rate among 4 kinds of phthalic acid esters were 65.12% - 108.86% ; The detection limit ranges were from 0. 05 to 0. 45 μg/L, the average recovery was 86. 11% - 86. 11% , and relative standard deviation was 1.77% -4. 42%. This method is suitable for determining the content of phthalates in water for the advantages of convenience, fast and accuracy.

        For solving the problem of distinguishing different types of diseases when the features extracted from different disease leaves are similar, an automatic recognition algorithm for disease rice leaves using multi-task joint sparse representation was proposed. The proposed algorithm considered the process of recognizing disease by the feature extracted form disease leaf as a task, and required that the feature are came from one task can be sparsely represented, and these sparse coefficient vectors had similar structure. The proposed algorithm can achieve to improve the accuracy rate by correlations among different tasks thus make the recognizing process completed in one-step. The experimental results demonstrated that the algorithm of multi-task joint sparse representation can mine the correlation among the features adequately, and thus the accuracy rate of recognition was improved.

        The impulsive controlling problem of multiple-equilibrium switched systems was investigated. Under the premise that the system had an unique solution and all subsystems contain only one common equilibrium point, the regional stability of the system could be equivalent to the final boundedness method of the system solution, and the impulsive controllable regional stability and impulsive controllable regional attraction was concluded, and the specific algorithm of pulse control was designed. Lastly, a specific example was provided.

        Sources of feathers are abundant, and feathers are biodegradable and their products are harmless. Feather contains 90% feather keratin. If the keratin could be effectively used, the waste feather,the environmental pollution, will become valuable resources. The special structure of keratin determines it has some properties of light, strong and tough, which make the keratin being an ideal material for the preparation of keratin composites. The research progress on the extraction methods of feather protein in recent years was reviewed, and the application of feather protein, especially in wastewater treatment, regenerated fiber and composite materials was summarized.

         Auxiliary intake of some functional foods could improve the efficacy of diabetes, and even reduced the amount of drugs. Natural functional food was rich in resources, toxic and side effects were small, and was simple, easy to be accepted by people, had great potential for the treatment of diabetes. The hypoglycemic property and mechanism of some functional ingredient from natural foods was summarized, the present situation of the development of the hypoglycemic health food in China was expounded, and the research direction of the hypoglycemic property was prospected.

        Through combing the domestic and foreign research achievements of leisure agriculture, leisure agriculture＇s definition, development status and influence, development characteristics and pattern, planning and design, and the relationship with tourism industry were analyzed and summarized. The research characteristics of the academic circles at home and abroad was compared. At the same time, some short- comings of the domestic leisure agriculture was pointed out and the development trend of research in the future was prospected.