提高多胚水稻双苗萌发频率的研究

三个多胚水稻品系双-3、双-13、陆52萌发条件对双苗率的影响试验表明:Zn^(2+)、植物生长调节剂、H_2O_2和适宜的萌发环境能明显提高多胚水稻双苗萌发频率。1×10^(-5)mol/L Zn^(2+)使双-3的双苗率由30.9％提高到41.8％;除GA_8使双-3、陆52的双苗率略有降低外,10mg/L的IAA,KT,2,4-D和6-BA均使双苗率有不同程度的增加;0.5％的H_2O_2使双-3的双苗率增加15.0％;适宜的温度预处理后在培养基上催芽,双苗率都有较大幅度提高,最高由41.0％提高到75.0％。

水稻花粉的离体萌发

选出适合于水稻花粉萌发的液体培养基 :2 0 %蔗糖 +10 % PEG4 0 0 0 +40 mg.L-1H3BO3+3mmol/ L Ca( NO3) 2 +10 mg.L-1VB1,得到 80 %的萌发频率。离体萌发时 ,花粉管生长很快 ,在 30 min内可达 70 0 μm。最适萌发的温度范围较宽 ,2 7～

The Influence of Low Frequency Electromagnetic Field （LF EMF） on the Agricultural Crops Seeds Germination

This research is about changing rate of seeds germination by low frequencies electromagnetic field. The method of resonant frequencies to increase seeds germination were developed and patented by authors of this research. The idea of the means is to research a technique to changing a capacitor component of full resistance for extracts of wheat and sunflower seeds under the influence of low frequency electromagnetic field （LF EMF）. After the green sprouting experimentin cups of Petri, it was found that most frequencies found by this method are good, and the best results increasing germination of wheat of a grade Krasnodar 99 were after treatment with 31 Hz, for sunflower of a grade Buzuluk 16 Hz.