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Seasonal Variation of Tropical Savanna Altered Agronomic Adaptation of Stock-6-Derived Inducer Lines
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Document Title
Seasonal Variation of Tropical Savanna Altered Agronomic Adaptation of Stock-6-Derived Inducer Lines
Author
Sintanaparadee P, Dermail A, Lubberstedt T, Lertrat K, Chankaew S, Ruanjaichon V, Phakamas N, Suriharn K
Name from Authors Collection
Affiliations
Khon Kaen University; Iowa State University; Khon Kaen University; National Science & Technology Development Agency - Thailand; National Center Genetic Engineering & Biotechnology (BIOTEC); King Mongkuts Institute of Technology Ladkrabang
Type
Article
Source Title
PLANTS-BASEL
Year
2022
Volume
11
Issue
21
Page
-
Open Access
Green Published, gold
Publisher
MDPI
DOI
10.3390/plants11212902
Format
Abstract
Tropicalization is one of the major objectives in breeding haploid inducers to address the poor adaptation of temperate haploid inducers in doubled haploid production in tropical maize. Gaining a better understanding of weather profiles in targeted agroecology is important. This study aimed to investigate the seasonal variation of tropical savanna climate and its impact on agronomic traits and haploid induction rate (HIR) of Stock-6-derived haploid inducer lines. A total of 14 haploid inducers were evaluated across two typical growing seasons between 2020 and 2021. Weather data were collected on daily minimum and maximum temperatures, relative humidity, precipitation, and solar radiation whereas phenotypic data were recorded on plant phenology, tassel attributes, plant stature, ear components, inducer seed rate (ISR), and HIR. The effects of season, genotype, and genotype by season were significant for all traits except season factor on ISR. Seasonal variation existed where the dry season was more suitable for haploid induction and inducer maintenance, as haploid inducers revealed better agronomic performance and seed set, delayed flowering dates, and higher HIR. Since the crossover performance of haploid inducers over seasons was detected, further implications on genotype selection in each season are discussed.
Keyword
haploid production | inducer maintenance | R1-nj biomarker | seed set | Zea mays L.
Industrial Classification
Knowledge Taxonomy Level 1
Knowledge Taxonomy Level 2
Funding Sponsor
National Science and Technology Development Agency (NSTDA) [P-20-50493, P-20-52286]
License
CC BY
Rights
Authors
Publication Source
WOS