Effects of irrigation scheduling on the yield and irrigation water productivity of cucumber in coconut coir culture.

Optimum irrigation scheduling is important for ensuring high yield and water productivity in substrate-cultivated vegetables and is determined based on information such as substrate water content, meteorological parameters, and crop growth. The aim of this study was to determine a precise irrigation schedule for coconut coir culture in a solar greenhouse by comparing the irrigation, evapotranspiration (ET), substrate water content (VWC), as well as the crop growth indices and yield of cucumber, and irrigation water productivity (IWP) under three irrigation schedules: the soil moisture sensor-based method (T-VWC), the accumulated radiation combined with soil moisture sensor-based method (Rn-VWC), and the crop evapotranspiration estimated method using the hourly PM-ETo equation with an improved calculation of Kc (T-ETc). The results showed that the daily irrigation and evapotranspiration amount were the highest under T-VWC treatment, while the lowest under T-ETc treatment.

[Effects of Different Types of Plastic Film Mulching on Soil Quality, Root Growth, and Yield].

Aiming to address the problem of soil environmental pollution caused by the large-scale use of plastic film in agricultural production in China, field experiments were carried out by applying degradable plastic film. Pumpkin was used as the research material to explore the effects of black common plastic film (CK), white degradation plastic film (WDF), black degradation plastic film (BDF), and black CO-based degradable plastic film (C-DF) on soil physicochemical properties, root growth and yield, and soil quality. The results showed that the soil water content and temperature of the three degradable plastic films were lower than those of ordinary plastic films to different degrees; there was no significant difference in soil organic matter content among the treatments.

Tomato salt tolerance mechanisms and their potential applications for fighting salinity: A review.

One of the most significant environmental factors affecting plant growth, development and productivity is salt stress. The damage caused by salt to plants mainly includes ionic, osmotic and secondary stresses, while the plants adapt to salt stress through multiple biochemical and molecular pathways. Tomato ( L.

Nematicidal activity of volatile organic compounds produced by Bacillus altitudinis AMCC 1040 against Meloidogyne incognita.

The application of nematicidal microorganisms and their virulence factors provides more opportunities to control root-knot nematodes. Bacillus altitudinis AMCC 1040, previously isolated from suppressive soils, showed significant nematicidal activity, and in this study, nematicidal substances produced by Bacillus altitudinis AMCC 1040 were investigated. The results of the basic properties of active substances showed that these compounds have good thermal stability and passage, are resistant to acidic environment and sensitive to alkaline conditions.

Explored Risk Factors for Lymph Node Metastasis with Siewert II/III Adenocarcinoma of the Gastroesophageal Junction.

Aim: To explore the risk factors and prognosis for lymphatic metastasis (LNM) in patients with Siewert II/III adenocarcinoma of the gastroesophageal junction (AEG).

Patients And Methods: This study retrospectively reviewed 49 patients with Siewert II/III AEG. Clinical characteristics and pathological features were analyzed by the Chi-square the and binary logistic regression.

Randomized Trial of Immediate Postoperative Pain Following Single-incision Versus Traditional Laparoscopic Cholecystectomy.

Background: We undertook a randomized controlled trial to ascertain if single-incision laparoscopic cholecystectomy (SILC) was more beneficial for reducing postoperative pain than traditional laparoscopic cholecystectomy (TLC). Moreover, the influencing factors of SILC were analyzed.

Methods: A total of 552 patients with symptomatic gallstones or polyps were allocated randomly to undergo SILC (n = 138) or TLC (n = 414).

Broadband single-polarization single-mode photonic crystal fibers with three different background materials.

A modified structure of single-polarization single-mode (SPSM) photonic crystal fiber (PCF) with different background materials is presented and analyzed by using the full-vector finite-element method. Simulation results confirmed that the proposed PCF can realize low-loss SPSM on three wavebands with the same structure and different background materials. The wavebands are 1.

[Clinical and pathological features of operable breast cancer in women over 65 years].

Objective: To study the clinical and pathological characteristics of operable breast cancer in women over 65 years.

Methods: The data of 95 patients treated from February 2003 to February 2005 were collected, and the clinicopathological characteristics were retrospectively analyzed.

Results: These 95 patients accounted for 26.

[A clinical comparison of two strategies for minimal invasive treatment of secondary common bile duct stone].

Objective: To compare the clinical efficiency of two strategy in the treatment of secondary common bile duct stones: laparoscopic cholecystectomy with transcytotic common bile duct exploration (LC + LTCBDE), or laparoscopic cholecystectomy after endoscopic sphincterotomy (EST + LC).

Methods: According to the screening standard, 88 patients with secondary bile duct stones (43 cases in LC + LTCBDE group, 45 cases in EST + LC group) who were treated from June 2005 to November 2007 were analyzed retrospectively. The achievement ratio, complications, average hospital stay and cost between two groups were compared.

Intrapancreatic accessory spleen: a case report and review of the literature.

Here, we report a case of intrapancreatic accessory spleen confirmed by pathologic diagnosis and discuss its differential diagnosis and surgical management with a review of the literature.

Effects of hepatotrophic factors on the liver after portacaval shunt in rats with portal hypertension.

Background: Portacaval shunt (PCS) prevent hepatotrophic factors from flowing into the liver, but they enter directly the systemic circulation and worsen liver injury. This study was designed to investigate the effects of hepatotrophic factors through the portal vein on the liver in rats with portal hypertension after portacaval shunt.

Methods: Intrahepatic portal hypertension (IHPH) was induced by intragastric administration of carbon tetrachloride, and end-to-side PCS was performed.

[Effect of endothelin-1 and its antagonists on the expression of endothelin receptors mRNA in HSC-T6 cells].

Objective: To study the effect of endothelin-1 (ET-1) and its antagonists on the expression of endothelin and its receptors mRNA in HSC-T6 cells.

Methods: Cultured HSC-T6 cells were randomly divided into 7 groups: Sham control group, ET-1 group (10 nmol/L ET-1), BQ-123 group [1 micromol/L BQ-123, a selective endothelin receptor A (ETRA) antagonist], BQ-788 group [1 micromol/L BQ-788, a selective endothelin receptor B (ETRB) antagonist], ET-1 + BQ123 group (10 nmol/L ET-1 + 1 micromol/L BQ-123), ET-1 + BQ-788 group (10 nmol/L ET-1 + 1 micromol/L BQ-788) and ET-1 + BQ-788 group (10 nmol/L ET-1 + 1 micromol/L BQ-123 + 1 micromol/L BQ-788). The expression of endothelin receptor mRNA of HSC-T6 cells was determined by reverse-transcription polymerase chain reaction (RT-PCR).