摘要
本试验对春季日光温室内100%、75%、50%和25%自然光强4个光照强度下的番茄生长和产量进行了测试分析,结果表明：75%的自然光强（晴天中午光强710～874μmol·m^-2·s^-1）对番茄植株生长和产量无显著影响。光强继续下降至620μmol·m^-2·s^-1以下时,番茄植株的生长量、干物质积累和产量则显著降低,产生弱光胁迫。弱光强对产量形成的负向影响,单株结果数〉平均单果重。
The growth and yield of tomato, which cultivated under 100%, 75%, 50%, 25% natural light intensity in spring sunlight greenhouse, were studied in this experiment. The result showed that there was no significant difference in growth and yield of tomato between 75% （710 ～ 8741μmol·m^-2·s^-1）and 100% （950 ～ 11200μmol·m^-2·s^-1 ） natural light intensity. The plant growth rate, dry matter accumulation, and yield of tomato decreased significantly and given rise to low light stress, when light intensity continue decrease to 6201μmol·m^-2·s^-1 . The negative influence of low light intensity to fruit number per plant was heavier than single fruit weight of tomato.
出处
《青岛农业大学学报（自然科学版）》
2007年第3期199-202,206,共5页
Journal of Qingdao Agricultural University(Natural Science)
基金
国家863计划项目(2001AA247011)
国家"十五"科技攻关项目(2001BA5031306)
关键词
番茄
光照强度
生长
产量
tomato
light intensity
growth
yield
