摘要
以“美国西芹”为试材,采用水培法,研究了不同钙浓度(0.5、1.0、1.5、2.0、2.5 mmol·L^(-1))对芹菜钙含量、光合特性及产量品质的影响,以期筛选出适宜水培芹菜的最佳钙浓度,为水培芹菜的高产优质栽培提供参考依据。结果表明:芹菜叶片和叶柄钙含量随钙浓度的升高而增加;随着钙浓度增加,芹菜叶片光合色素、净光合速率(Pn)、蒸腾速率(E)、气孔导度(Gs)、株高、茎粗及鲜质量均表现为先升高后降低,在1.0 mmol·L^(-1)钙浓度下达最高;芹菜叶片和叶柄中总酚、维生素C、游离氨基酸及可溶性蛋白质等品质指标的含量也随钙浓度的增加表现为先升高后降低,在1.5 mmol·L^(-1)钙浓度处理下的含量最高,分别较其它处理提高41.92%~325.65%和27.47%~170.89%、1.13%~21.10%和1.92%~22.21%、30.01%~38.95%和43.46%~82.16%、38.72%~125.82%和9.86%~568.57%。由此可见,1.0 mmol·L^(-1)钙浓度处理有利于增加水培芹菜产量,1.5 mmol·L^(-1)钙浓度处理有利于提高水培芹菜品质。
‘American Celery'was used as the test material,the effects of different calcium concentrations(0.5,1.0,1.5,2.0,2.5 mmol·L^(-1))on the calcium content,photosynthetic characteristics and yield quality of celery was investigated by hydroponics,and the optimal calcium concentration for hydroponics celery was selected,in order to provide reference for the high yield and quality of hydroponics celery.The results showed that the calcium content of celery leaves and petioles was enhanced with the increase of calcium concentration.With the increase of calcium concentration,photosynthetic pigment,net photosynthetic rate(Pn),transpiration rate(E),stomatal conductance(Gs),plant height,stem diameter and fresh weight of celery leaves were increased first and then decreased,and the highest value was reached at 1.0 mmol·L^(-1)calcium concentration.The contents of quality indicators including total phenols,vitamin C,free amino acids and soluble protein in celery leaves and petioles were also raised and then lowered with increasing calcium concentration,and the highest contents were found under the treatment of 1.5 mmol·L^(-1)calcium concentration,which were increased by 41.92%-325.65%and 27.47%-170.89%,1.13%-21.10%and 1.92%-22.21%,30.01%-38.95%and 43.46%-82.16%,38.72%-125.82%and 9.86%-568.57%,respectively,compared with other treatments.In conclusion,1.0 mmol·L^(-1)calcium concentration treatment was beneficial to increase the yield of hydroponic celery,and 1.5 mmol·L^(-1)calcium concentration treatment was beneficial to improve the quality of hydroponic celery.
作者
虎丽霞
张婧
高彦强
马宁
常有麟
颉建明
HU Lixia;ZHANG Jing;GAO Yanqiang;MA Ning;CHANG Youlin;XIE Jianming(College of Horticulture,Gansu Agricultural University,Lanzhou,Gansu 730070)
出处
《北方园艺》
CAS
北大核心
2023年第11期22-28,共7页
Northern Horticulture
基金
甘肃农业大学科技创新基金-公招博士科研启动基金资助项目(GAU-KYQD-2020-8)
甘肃省瓜菜产业技术体系专项资助项目(GARS-GC-1)
甘肃省农业科技创新资助项目(GNCX-2013-37)。
关键词
钙
芹菜
光合特性
品质
calcium
celery
photosynthetic characteristics
quality
