【摘要】 对日光温室内大花曼陀罗花器构造、单花的开花习性进行研究。试验结果表明,花梗和花冠的生长量受温度影响较大,花萼生长量受温度影响不大。此外,通过对花冠生长量的观察可知,3月的日光温室里大花曼陀罗单花现蕾期约5d,开花期约5d,衰落期约6d,单花花期约16d;4月的日光温室里大花曼陀罗单花现蕾期约5d,开花期约3d,衰落期约4d,单花花期约12d。更多还原

【Abstract】 Research the structure and the blooming habit of a single flower of Datura suaveolens in the greenhouse.The experimental results show that the growth of the pedicel and corolla is affected obviously by temperature,while the growth of the calyx is affected unobviously by temperature.Moreover,after observating the growth of the corolla we can see that in March the budding period of a single flower of Datura suaveolens in the greenhouse lasts about 5 days,the flowering period lasts about 5 days and the declining period lasts about 6 days and the blooming period lasts about 16 days;while in April the budding period lasts about 5 days,the flowering period lasts about 3 days and the declining period lasts about 4 days and the blooming period lasts about 12 days.更多还原