Pengaruh Asam Sitrat, Aluminium, dan Interaksinya Terhadap Pertumbuhan Kecambah Jagung Hibrida (Zea mays L.) Varietas Bisi- 18

Abstract

The objective of this research was to know effect of citric acid, aluminum, and their its
interaction on the seedling growth of hibrida maize (Zea mays L.) Var. Bisi-18. The
experiment was conducted during January 2016 in Plant Physiology Laboratory,
Department of Biology, Faculty of Mathematics and Natural Science, University of
Lampung. The experiment was implemented in 2x3 factorial experiments. Factor A was
Aluminum with 2 levels: 0 mM, 5 mM. Factor B was Citric Acid with 3 levels: 0 mM, 5 mM,
and 10 mM. After selected corn seeds were soaked in citric acid solution for 24 hours, and
germinated in plastic tray. After 7 days seedlings were planted in plastic containers that
contain aluminum solution. Variables in this research were shoot length, seedling fresh
weight, shoot root ratio, and relative water content after 7 days of growing period. Analysis
of variance was conducted at 5% significant level. If interactions between aluminum and
citric acid was not significant, main effect was determined at 5% significant level with LSD
test. If interactions between aluminum and citric acid was significant, simple effect was
determined at 5% significant level with F test. The result showed that no aluminum effect
observed on all variables, and citric acid affected negativly all variables. No interctions
between aluminum and citric acid on all seedling growth variables of maize hibrida Var.
Bisi-18. It is concluded aluminum 5mM was not able to cause stress in maize seedling. In
no stress condition citric acid has negative effect on maize seedling growth.
Keyword: Citric acid, Aluminium, Maize Seedling, Shoot Length, Seedling Fresh Weight.