TITLE:
The Effects for Delaying Banana Seedling Growth through Spraying Growing Retardants on Stem Apex
AUTHORS:
Shenghe Chang, Zhengjing Wu, Qi Zeng, Jingyi Zhang, Wei Sun, Lan Qiao, Haiyan Shu
KEYWORDS:
Banana Seedlings, Growth Retardants, Selecting, Gibberellins
JOURNAL NAME:
American Journal of Plant Sciences,
Vol.10 No.5,
May
30,
2019
ABSTRACT: Replanting is always required for banana farmers.
Selecting growth retardants is important for
banana seedling companies. Stem apex contained many
gibberellins. Seven treatments were performed onto stem apex of banana
seedlings in this research. Results showed that heights of seedlings sprayed
with paclobutrazol (200 mg/L), dniconazole
(200 mg/L), and dniconazole + brassins
(200 mg/L + 0.1 mg/L) were significantly lower than those of seedlings sprayed
with water. Paclobutrazol was the ideal retardant for delaying the growth of
leaf if stem apex was selected as a treated candidate. Fresh weights of
seedlings of all seven treatments were significantly less than that of
control. For delaying the growth of fresh weight of banana seedlings,
chlormequat chloride (200 mg/L) was the best choice. Reducing power of roots of seedlings treated with 100 ml
of paclobutrazol (200 mg/L) was significantly higher than that of seedling
treated with water. Chlorophyll contents of seedlings treated with growth
retardants were significantly higher than that of seedlings treated with water.