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

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

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

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.

Objective To provide technical support for developing portable and carrying PSA medical oxygen generators under variable altitudes. Methods Based on the operation principle of PSA technology, the effects of altitude on the performance capacity of series of PSA medical oxygen generators were analyzed. PSA oxygen generating technology was explored with an inlet system with variable frequencies and constant pressure. The problems due to the introduction of the converter were discussed during studying key technologies, and some countermeasures were put forward accordingly. Trials were executed with 1.2 Nm3/h generator taken as an example. Results The PSA medical oxygen generator developed met the requirements of corresponding standards of medical molecular sieve oxygen generator at the altitudes from 0 to 4451 m. Conclusion The PSA oxygen generator has its adaption altitude enhanced significantly.

OBJECTIVETo study the security and curative effect of radiofrequency ablation (RFA) for hypersplenism due to portal hypertension in the near future.

METHODS12 patients of the disease were treated with RFA. The blood count showed that WBC is (2.0 +/- 0.7) x 10(9)/L, PLT (25 +/- 10) x 10(9)/L, RBC (3.08 +/- 0.56) x 10(9)/L. In manners of systemic anaesthesia, through skin or in the operation or under the celioscopes the RFA needles are inserted the upper and middle parts of spleen in the instructing of US. Average time of RFA is (36.4 +/- 5.4) s.

RESULTSAfter the RFA, 1 case develop hematoma under the envelope of liver, and 1 case developed skin burn; 6 patients appeared middle or little fluid in the left thorax, 2 of them were drawn through puncture. The volume of spleen and damaged part of spleen from RFA were determined by enhanced CT in the days of 10 after RFA, the percentage of damaged part of spleen from RFA is 49.1% (23.3% - 88.9%). In the days of 14 after RFA, RBC is (5.5 +/- 0.9) x 10(9)/L, PLT is (124 +/- 21.36) x 10(9)/L; In the days of 33 after RFA, RBC is (5.4 +/- 1.1) x 10(9)/L, PLT is (205 +/- 34) x 10(9)/L. The levels of WBC and PLT in the blood after RFA are significantly higher than those of levels of WBC and PLT before RFA (P < 0.01).

CONCLUSIONSRadiofrequency ablation for Hypersplenism due to portal hypertension of hepatitis hepatocirrhosis is safety and credibility and has excellent curative effect in the near future.

Adult ; Catheter Ablation ; methods ; Female ; Follow-Up Studies ; Humans ; Hypersplenism ; diagnostic imaging ; etiology ; surgery ; Hypertension, Portal ; complications ; Laparoscopy ; Laparotomy ; Male ; Middle Aged ; Treatment Outcome ; Ultrasonography