The study was conducted to explore the response of growth and yield of Tulipa edulis to flower bud removal and artificial pollination. And flower bud removal and artificial pollination were carried out in the squaring period and bloom stage respectively. The morphological index and biomass indicators were determined and the yield was counted in harvest time. Result showed that flower bud removal was beneficial to the growth of T. edulis, resulting in increasing growth index, biomass as well as the yield of bulb. The diameter and dry weight of T. edulis fruit by artificial pollination were increased significantly compared with the control. Seed setting percentage increased to 100%, and the number of seed as well as the single grain weight increased by 69.03% and 16.48%, respectively, which did not significantly affect the bulb production. In conclusion, Flower bud removal treatment accelerates bulb biomass increase, so as to improve its yield. Artificial pollination raised significantly seed setting percentage, seed number as well as the single grain weight.
Biomass ; Botany ; methods ; Flowers ; growth & development ; physiology ; Pollen ; growth & development ; physiology ; Pollination ; Tulipa ; growth & development ; physiology

The effect of low temperature storage on dormancy breaking, sprouting and growth after planting of Tulipa edulis was studied. The results showed that starch content and activity of amylases significantly decreased during 10 weeks of cold storage, soluble protein content raised at first then decreased, and the peak appeared at the 6th week. However, total soluble sugar content which in- creased slowly at first than rose sharply and reducing sugar content increased during the storage duration. The bulbs with cold storage treatment rooted in the 6th week, which was about 2 weeks earlier than room temperature storage, but there were less new roots in the late period of storage. After stored at a low temperature, bud lengths were longer than that with room temperature treatment. Cold storage treatment could promote earlier emergence, shorten germination time, prolong growth period and improve the yield of bulb, but rarely affect the emergence rate. It was not beneficial to flowering and fruiting. The results indicated that 6-8 weeks of cold storage was deemed to be the key period of dormancy breaking preliminary.
Cold Temperature ; Plant Dormancy ; Plant Roots ; chemistry ; growth & development ; physiology ; Tulipa ; chemistry ; growth & development ; physiology

Aged ; Angioplasty, Balloon, Coronary ; adverse effects ; Coronary Vessels ; injuries ; Drug-Eluting Stents ; Humans ; Male ; Polytetrafluoroethylene ; chemistry ; therapeutic use

Animals ; Bone Morphogenetic Protein 2 ; Bone Morphogenetic Proteins ; physiology ; Calcinosis ; chemically induced ; drug therapy ; Cell Differentiation ; drug effects ; Humans ; Hydroxymethylglutaryl-CoA Reductase Inhibitors ; adverse effects ; therapeutic use ; Osteoblasts ; cytology ; drug effects ; Transforming Growth Factor beta ; physiology ; Vascular Diseases ; chemically induced ; drug therapy

OBJECTIVETo study the effects of high temperature stress on the root vitality and leaf biochemical indexes in populations of Pinellia ternate.

METHODThe leaf activity of SOD, contents of MDA and free praline and root vitality were determined after a treatment of high temperature stress (35 degrees C/25 degrees C) was given to different populations of P. ternate.

RESULT AND CONCLUSIONBy stress time increasing, the leaf SOD and free praline rose firstly and then dropped, the content of MDA increased while the root ability decreased in all populations. And the response of populations of P. ternate to high temperature was significantly different.

China ; Ecosystem ; Heat-Shock Response ; physiology ; Hot Temperature ; Malondialdehyde ; metabolism ; Pinellia ; metabolism ; physiology ; Plant Leaves ; metabolism ; physiology ; Plant Roots ; physiology ; Plants, Medicinal ; metabolism ; physiology ; Proline ; metabolism ; Superoxide Dismutase ; metabolism

To explore the method of explants directly induced bud and establish the tissue culture system of mutiple shoot by means of direct organogenesis, core bud and daughter bulbs (the top of bud stem expanded to form daughter bulb) of T. edulis were used as explants and treated with thidiazuron (TDZ) and 1-naphthlcetic acid (NAA). The results showed that the optimal medium for bud inducted form core bud and daughter bulb were MS + TDZ 2.0 mg x L(-1) + NAA 4.0 mg x L(-1) and MS +TDZ 2.0 mg x L(-1) + NAA 2.0 mg x L(-1) respectively, both of them had a bud induction rate of 72.92%, 79.22%. The optimal medium for cluster buds multiplication was MS + TDZ 0.2 mg x L(-1) + NAA 0.2 mg x L(-1), and proliferation coefficient was 2.23. After proliferation, cluster buds rooting occurred on MS medium with IBA 1.0 mg x L(-1) and the rooting rate was 52.6%, three to five seedlings in each plant. Using core bud and daughter bulb of T. edulis, the optimum medium for adventitious bud directly inducted from daughter bulb, core bud and cluster bud multiplication were screened out and the tissue culture system of multiple shoot by means of direct organogenesis was established.
Naphthaleneacetic Acids ; pharmacology ; Phenylurea Compounds ; pharmacology ; Plant Growth Regulators ; pharmacology ; Plant Shoots ; drug effects ; growth & development ; Plant Stems ; drug effects ; growth & development ; Seedlings ; drug effects ; growth & development ; Thiadiazoles ; pharmacology ; Tissue Culture Techniques ; Tulipa ; drug effects ; growth & development

This paper introduced a new structure of MRI guided P-HIFU therapy system and software implementation based on the current P-HIFU system and interface provided by MRI vendor. The tests showed that the system's software can achieve the appropriate form of treatment need.
Magnetic Resonance Imaging ; Software Design ; Ultrasonic Therapy ; methods

Objective To explore the subjective well-being (SWB) status among community elderly in Xi' an city,and find out the major influence factors.Methods A total of 400 community elderly in Xi' an city were investigated with MUNSH,GDS, GSES and General Status Questionnaire.Results The valid questionnaires were 390,and the response rate was 97.5％.SWB of community elderly in Xi' an was relatively higher as 276 of the elderly scored more than 36,which was 70.8％ of the total participants.Only 18 cases scored less than 12,which was 4.6％ of the total.By the analysis of variance ( ANOVA ),the following variables were significantly associated with SWB:personality,depressive emotion and self-efficacy( P ＜0.05),and the value of F(t) were 1.436,13.888 and 2.245; No significant difference was noted among age,.sex,education level and income (P＞ 0.05 ),and the value of F (t) were 0.746,0.972,0.757 and 0.615.Conclusions SWB of community elderly in Xi' an is relatively higher.Personality,depressive emotion and seff-efficacy are the major factors which affected SWB of the elderly in community.

OBJECTIVEThe purposes of this thesis were to study the behavior about workers exposed to dust and provide scientific basis for health promotion.

METHODSWe designed a questionnaire and carry it on the 746 dust workers in the 3 representative corporations of Machinery, Ceramic, and Metallurgy Industry. All data were input into computer. And a database was established with Excel. SPSS11.5 statistical analysis software was used to analyze the influence on protecting behavioral between the application of qualifications, different jobs, training or protection, and other aspects etc.

RESULTSThe rates were 94.4% and 75.3% about the regular physical examination and requirements for protective equipment. The rate of choosing an effective way of protection was generally low (15.4%). There was significant difference for among different educational background workers (P < 0.01). The rates of choosing an effective way of protection (20.3%), the regular physical examination (98.3%) and requirements for protective equipment (86.4%) in the dust workers who participated in the training of dust protection were superior than those who did not participated in the training. There was the significant difference (P < 0.05, P < 0.01). There was the significant difference for the rate of effective way of protection, regular physical examination, and requirements for protective equipment among the different corporations (P < 0.05).

CONCLUSIONSDust workers' using rate about the choosing an effective way of protection was generally low in Machinery, Ceramic, and Metallurgy Industry. Those who were not educated had a lower using rate about the protection behavior, regular physical examination, and requirements for protective equipment than those educated.

Adolescent ; Adult ; Ceramics ; Choice Behavior ; Dust ; prevention & control ; Female ; Humans ; Industry ; Male ; Metallurgy ; Middle Aged ; Occupational Exposure ; prevention & control ; Respiratory Protective Devices ; utilization ; Young Adult

OBJECTIVETo analyze the clinicopathological characteristics and prognosis of familial gastric cancer and to improve the treatment outcome.

METHODSClinical data of 67 patients with familial gastric cancer and 820 patients with sporadic gastric cancer in the Second Affiliated Hospital of Dalian Medical University from 1995 to 2005 were retrospectively analyzed.

RESULTSCompared to sporadic gastric cancer, the percentage of familial gastric cancer patients less than 45 years old was higher (34.3% vs. 14.6%). Early gastric cancer(23.9% vs. 13.8%), diffuse gastric cancer(79.1% vs. 29.0%), and lymph node metastasis (91.0% vs. 70.9%) were more common in patients with familial cancer(P<0.05). The 5-year survival rate of familial gastric cancer patients was lower than that of patients with sporadic gastric cancer(20.5% vs. 45.1%)(P<0.05).

CONCLUSIONSFamilial gastric cancer has characteristics of younger onset age, advanced disease staging, higher positive lymph node ratio and poorer prognosis. Therefore, early diagnosis should be emphasized in the management of familial gastric cancer.

Adult ; Female ; Humans ; Male ; Middle Aged ; Pedigree ; Prognosis ; Retrospective Studies ; Stomach Neoplasms ; genetics ; pathology ; surgery ; Survival Rate