Factors affecting the pollen viability of the pollination

How to buy the pollen storage, to the greatest extent maintain the pollen viability, which directly affects the rate of fruit set, which affects the fruit yield! Here are the main factors that affect the pollen viability of the pollen!
Internal factors: the genetic characteristics of pollen, pollen viability of different species is different.
External factors:
Temperature: the temperature is an important factor affecting the pollen viability, temperature and pollen storage life was negatively correlated. In general, the lower the temperature, the longer the storage life of pollen, the temperature is high, and the pollen respiration intensity is enhanced, which is easy to cause the pollen nutrient depletion.
Two, relative humidity: in a certain range, relative humidity and pollen storage life was negatively correlated, probably due to low relative humidity can make the pollen metabolism is inhibited, the enzyme activity decreased, decreased respiration, so that the pollen storage life extension, but very dry conditions is not conducive to the preservation of pollen. The most suitable storage moisture of most plants is below 60%.
Three, storage media: storage media, including gas and organic solvents, the surrounding composition and gas pressure on the impact of the life force of pollen storage. In general, CO2 low pressure especially vacuum conditions can be extended pollen storage time, and O2 is the opposite. To reduce the storage time, the reason is also related to the respiratory function.
Four, radiation: radiation has a certain impact on the pollen viability. A certain dose of radiation disinfection, can kill the pathogenic bacteria pollen contamination, thus extending the pollen storage period.
Five, light: light on the pollen viability of the general, the general dark is conducive to the preservation of pollen.

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