Cold chilling damage in rice

Rice produces cold-type chilling damage, and ear is a sensitive part of low temperature. Anthers are the organs that directly sense the effects of low temperature, and they reflect the low temperature in one ear. The critical temperature for short-term hypothermia treatment at the booting stage that is imprecise in the production has the following three conditions: the onset temperature at which the fertilization occurs is 18 to 20 degrees Celsius; the risk for the occurrence of the obstacle cold injury is 15 to 17 degrees Celsius; the completion is not refined The critical temperature is 10 to 12 degrees Celsius. In the field, the temperature is high, the night temperature is low, and the diurnal variation caused by day-night temperature variation and stable low temperature is different. When the daytime temperature is high enough to compensate for the low temperature at night, it will not affect the fruiting. In the process of rice growth, encountering the low temperature conditions below the appropriate temperature, photosynthesis, respiration is inhibited, material metabolism, energy metabolism abnormalities.

LED Lighting

Everything You Need To Know About LED Lighting

LEDs are a simple invention with huge potential to change the lighting industry for the better. Don`t know much about them? Here are three big things you need to know to get your feet under you:
1.What Does LED Stand For?

2.LED stands for light-emitting diode.

A diode is an electrical device or component with two electrodes (an anode and a cathode) through which electricity flows - characteristically in only one direction (in through the anode and out through the cathode). Diodes are generally made from semi-conductive materials such as silicon or selenium - substances that conduct electricity in some circumstances and not in others (e.g. at certain voltages, current levels, or light intensities).

1.What is LED Lighting?
2.A light-emitting diode is a semiconductor device that emits visible light when an electrical current passes through it. It is essentially the opposite of a photo-voltaic cell (a device that converts visible light into electrical current).
Did You Know? There is a similar device to an LED called an IRED (Infrared Emitting Diode). Instead of visible light, IRED devices emit IR energy when electrical current is run through them.

1.How Do LED Lights Work?

2.It`s really simple actually, and very cheap to produce, which is why there was so much excitement when LED lights were first invented!

The Technical Details: LED lights are composed of two types of semiconducting material (a p-type and an n-type). Both the p-type and n-type materials, also called extringent materials, have been doped (dipped into a substance called a [doping agent") so as to slightly alter their electrical properties from their pure, unaltered, or [intrinsic" form (i-type).
The p-type and n-type materials are created by introducing the original material to atoms of another element. These new atoms replace some of the previously existing atoms and in so doing, alter the physical and chemical structure. The p-type materials are created using elements (such as boron) that have less valence electrons than the intrinsic material (oftentimes silicon). The n-type materials are created using elements (such as phosphorus) that have more valence electrons that the intrinsic material (oftentimes silicon). The net effect is the creation of a p-n junction with interesting and useful properties for electronic applications. What those properties are exactly depends mostly on the external voltage applied to the circuit (if any) and the direction of current (i.e. which side, the p-type or the n-type, is connected to the positive terminal and which is connected to the negative terminal).
Application of the Technical Details to LED Lighting:

When a light-emitting diode (LED) has a voltage source connected with the positive side on the anode and the negative side on the cathode, current will flow (and light will be emitted, a condition known as forward bias). If the positive and negative ends of the voltage source were inversely connected (positive to the cathode and negative to the anode), current would not flow (a condition known as reverse bias). Forward bias allows current to flow through the LED and in so doing, emits light. Reverse bias prevents current from flowing through the LED (at least up until a certain point where it is unable to keep the current at bay - known as the peak inverse voltage - a point that if reached, will irreversibly damage the device).

While all of this might sound incredibly technical, the important takeaway for consumers is that LEDs have changed the lighting landscape for the better, and the practical applications of this technology are almost limitless. To learn about why LEDs might be a good fit for your business.

LED panel light,LED tube, led high bay light,led industry light

Guangzhou Zhongzhinan Supply Chain Co.,Ltd. , https://www.gzzhongzhinan.com