Abstract
Objective: Plant life begins at germination. Stimulating germination with chemical methods can be advantageous. The pregerminative treatment of four promoters was determined in two maize genotypes (G1, G2). Design/methodology/approach: Sixty seeds per Petri dish were used as experimental unit with three repetitions, organized in a completely randomized 2×4 factorial design. Two factors were taken into consideration: A) Genotypes (G1, G2); and B) four pregerminative promoters. The genotypes were Antelope G1 and yellow Antelope G2. Meanwhile, the pregerminative promoters were salicylic acid (C7H6O3) (SA), citrulline (C6H13N3O3) (CI), humic substances derived from leonardite (HS), and tap water (TW), in 1000-ppm concentrations. The following variables were evaluated: germination percentage (GP)/days-1, radicle diameter (RD), radicle length (RL), and number of lateral seminal roots (NSR). An analysis of variance and Tukey tests (α £ 0.05) were performed. Results: The germination promoters were highly significant in both genotypes, as well as during the promoter-genotype interaction. G1 and G2 means showed a higher growth and development for humic substances (HS) during germination in the NSR. Study Limitations/Implications: Germination can be inhibited, if the promoters are overweighted. Findings/Conclusions: The best genotype and germination promoter (G2) had a 94% effectiveness and HS at 1000 ppm. CI and SA registered the lowest GP.
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Claims 6
Claim · model-written summary
Promoters significantly affected both genotypes.
Zea maysNot reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The germination promoters were highly significant in both genotypes, as well as during the promoter-genotype interaction.”
t0“Zea mays L.”
Claim · model-written summary
Humic substances increased seminal lateral roots in G1.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“G1 and G2 means showed a higher growth and development for humic substances (HS) during germination in the NSR.”
t0“Zea mays L.”
Claim · model-written summary
Humic substances increased seminal lateral roots in G2.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“G1 and G2 means showed a higher growth and development for humic substances (HS) during germination in the NSR.”
t0“Zea mays L.”
Claim · model-written summary
G2 achieved 94% effectiveness.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The best genotype and germination promoter (G2) had a 94% effectiveness and HS at 1000 ppm.”
t0“Zea mays L.”
Claim · model-written summary
Citrulline had the lowest germination percentage.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CI and SA registered the lowest GP.”
t0“Zea mays L.”
Claim · model-written summary
Salicylic acid had the lowest germination percentage.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CI and SA registered the lowest GP.”
t0“Zea mays L.”
The same questions in other papers
salicylic acid · growth · Zea mays (maize)Results differ
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