不同播种期对大千生生长的影响

目的]确定大千生的最佳播种时间。方法]以吉林省吉林市左家地区大千生种子为材料,分别在不同播种期(4月29日、5月9日、5月19日和5月29日)进行播种,对其形态学特征进行观察,测定其各种生理指标和种子指标。结果]播种期不同,大千生的生育时期不同,其各项指标均有一定差异。在其他条件相同的情况下,无论是在形态指标、生理指标还是种子指标方面均以5月19日播种的种子生长比较旺盛,产量较高。因此,认为在吉林省吉林市左家地区大千生的最佳播种期为5月19日左右,即每年5月中旬。结论]该研究为大千生生产栽培提供了理论依据。

Effect of Different Sowing Date on Growth of Nicandra physaloides

Objective] The aim was to determine the optimum sowing date.Method] With the Nicandra physaloides seeds from the Zuojia area of Jilin City in Jilin Province as materials,they were sowed in different sowing date of April 29,May 9,May 19 and May 29.Its morphological characteristics were observed and every physiological and seed index were detected.Result] The growth stages of N.physaloides were different with the different sowing dates and its every index had certain difference.From No matter on the morphological index and physiological index or on the seed index,the growth of the seeds sowed on May 19 was more vigorous and their yield was higher when the other conditions were same.So the optimum sowing date of the N.physaloides seeds from the Zuojia area of Jilin City in Jilin Province was near May 19,which is the middle ten days of May in every year.Conclusion] The research provided the theoretical basis for the production and cultivation of N.physaloides.