摘要
以四季草莓"蒙特瑞""圣安德瑞斯""波特拉""阿尔比"4个品种为试验试材,采用单因素试验方法,在相对湿度75%、光照强度480μmol·m-2·s-1的人工气候室中,研究昼夜温度对四季草莓生长、结果和光合的效应,以期了解昼夜温度对四季草莓生长结果的影响,掌握四季草莓适宜生长的环境温度。结果表明:四季草莓不同品种、不同生育阶段适宜的昼夜温度条件不同。在营养生长阶段,昼夜温度为30℃/21℃可显著加快四季草莓的生长,该条件下,"蒙特瑞""圣安德瑞斯"株高、叶面积均高于其它2个品种。在生殖生长阶段,温度过高(30℃/21℃、33℃/24℃)花芽分化少,果实小而畸形,无商品价值,昼夜温度在25℃/16℃条件下,植株能维持较高的光合速率和有效养分的积累,单果质量最高,该条件下"圣安德瑞斯"单果质量达到16.45 g,显著高于"波特拉"(P<0.05);昼夜温度对果实可溶性固形物和可滴定酸影响不显著。
Four varieties of seasonal strawberry’Monterey’’San.Andreas’’Portola’’Albion’were used as test materials.The single-factor test method was adopted.Under the artificial climate chamber with relative humidity of 75%and light intensity of 480μmol·m-2·s-1,the effects of diurnal temperature on the growth,photosynthesis of seasonal strawberry were studied,in order to understand the influence of diurnal temperature on the growth results of seasonal strawberry,and to grasp the suitable environmental temperature for the growth of seasonal strawberry.The results showed that the suitable diurnal temperature conditions for different varieties of strawberries and different growth stages in seasonal strawberry were different.In the vegetative growth stage,the diurnal temperature of 30℃/21℃could significantly accelerate the growth of seasonal strawberry.Under this condition,the plant height and leaf area of’Monterey’and’San Andreas’were higher than those of the other two varieties.In the reproductive growth stage,the temperature was too high(30℃/21℃,33℃/24℃)flower bud differentiation was small,the fruit was small and deformed,and had no commercial value.The diurnal temperature was 25℃/16℃,the plant could maintain a high photosynthetic rate and accumulation of effective nutrients had the highest single fruit quality.Under this condition,the single fruit quality of’San Andreas’reached 16.45 g,which was significantly higher than that of the’Portola’variety(P<0.05).The effects of substances and titratable acids were not significant.
作者
郑爱英
陈清西
谢倩
叶清华
ZHENG Aiying;CHEN Qingxi;XIE Qian;YE Qinghua(College of Horticulture,Fujian Agriculture and Forestry University,Fuzhou,Fujian 350007)
出处
《北方园艺》
CAS
北大核心
2020年第14期32-41,共10页
Northern Horticulture
基金
福建农林大学科技创新专项基金资助项目(CXZX2017186,CXZX2018087)。
关键词
四季草莓
昼夜温度
生长
光合特性
品质
seasonal strawberry
diurnal temperature
growth
photosynthetic characteristics
quality
