Treatments had been carried out for germination of water dropwort, The results indicated that water dropwort seeds have a low germination percentage and dormancy characteristic.
Soybean, wheat seed dressing in 40 times and soaking in 400 times of RPA type of agriculture,the effects are very clear in the germinative capacity,the number of lateral root.
Fourteen new derivatives of steviol have been synthesized through structural modification.Among them the compound 4 appeared the best bioactivity in relation to bud sprout and growth of cotton plant.