Effect of prohexadione-calcium on the growth and quality of cauliflower seedlings
The problem of seedling succulent growth seriously affects the quality of seedlings,and effectively preventing seedling succulent growth is of great significance for cauliflower seedling cultivation.This study focuses on cauliflower as the experimental object.There are a total of 9 treatments in this experiment,and different concentrations of calcium cyclamate(Pro Ca)are sprayed at different stages to study the impact on the growth of cauliflower seedlings.The results showed that spraying a suitable concentration of Pro-Ca at a suitable time could not only effectively inhibit the seedlings height,increase stem diameter,growth function(G value),root-to-shoot ratio,and seedling strength index,and improve the seedling quality,but also significantly increase the chlorophyll content,net photosynthetic rate,transpiration rate,intercellular CO2 concentration,and stomatal conductance of cauliflower seedlings.However,it had no significant effect on the root morphological characteristics of cauliflower seedlings.Comprehensive analysis showed that the best effect was to apply 150 mg·L-1 calcium cyclamate to the A1B2 group when the seedlings were fully grown(one week after sowing).Therefore,reasonable application of calcium cyclamate can effectively regulate the seedling type,improve seedling quality,and facilitate the cultivation of strong seedlings.
cauliflowerprohexadione-calciumseedling succulent growthquality of seedingsphotosynthesis
NETL
NSTL
万方数据
维普
