CAJ | 학술논문

[目的]研究Ca2+对吊兰根系负向光性的影响.[方法]在恒温条件下,对不同浓度CaCl2溶液中受单侧光照射后吊兰根的生长情况进行了研究.[结果]水培液中的Ca2+对吊兰根的生长和向性反应有显著影响;低浓度Ca2+促进根的生长,高浓度Ca2+抑制根的生长.其中,当Ca2+浓度为0.4 mmol/L时,吊兰根的生长和弯曲最为显著.[结论]吊兰根的负向光性受内源与外源Ca2+的综合影响.
[목적]연구Ca2+대조란근계부향광성적영향.[방법]재항온조건하,대불동농도CaCl2용액중수단측광조사후조란근적생장정황진행료연구.[결과]수배액중적Ca2+대조란근적생장화향성반응유현저영향;저농도Ca2+촉진근적생장,고농도Ca2+억제근적생장.기중,당Ca2+농도위0.4 mmol/L시,조란근적생장화만곡최위현저.[결론]조란근적부향광성수내원여외원Ca2+적종합영향.
[Objective] The aim was to explore the effects of Ca2+ on the negative phototropism of Chorophytum comosum root.[Method] C.comosum were cultivated in different concentration of CaCl2 solution with unilateral light illuminated.[Rusult] The Ca2+ in nutrient solution showed significant effect on the growth and tropic reaction of C.comosum; low concentration of Ca2+ promoted root growth, while high concentrations of Ca2+ inhibited the root growth.When the concentration of Ca2+ was 0.4 mmol/L, the phenomenon of the negative phototropism and the root growth were the most obvious.[Conclusion] The root negative phototropism could be concluded to the comprehensive effect of the endogenous and exogenous Ca2+.