Effects of priming on germination and biochemical attributes of three maize lines under saline condition

IF 0.6 4区农林科学 Q4 AGRONOMY

Bioagro Pub Date : 2022-08-31 DOI:10.51372/bioagro343.3

Bolaji Umar Olayinka, Khadijah Abdulkareem, A. Abdulbaki, H. Alsamadany, Y. Alzahrani, Kareem Isiaka, A. Ayinla, Opeyemi Saheed Kolawole, Adam Idowu, Francis Odudu, M. Ibuowo, O. Mustapha, Abdulwahhab Sulyman

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Abstract

It has been shown that the adverse effects of salinity can vary between different varieties of the same plant species. This study was conducted to determine the tolerability of three newly released lines of maize to saline conditions when primed with ethylene diamine tetraacetic acid (EDTA) and salicylic acid (SA) each at 1.0 M concentration; seeds primed with distilled water were used as control. Concentrations of 0, 50, 100, 150 and 300 mM NaCl were tested. The experiment followed a 3x3x5 factorial arrangement of treatments with three replications. The results revealed significant interaction between maize lines and salinity where the germination percentage of line SWAN-LSR-Y was much more affected than the other lines at the salinity level of 50 mM, and its speed of germination was more affected than the others when passing from 150 to 300 mM NaCl. The seedling lengths (radicle and plumule) and seed vigor index were influenced by significant interaction between the primer and salinity, where EDTA enhanced better seedling growth than the other primers when the salinity did not exceed 150 mM. OMR-LSR-SY maize line did not show tolerability at this concentration. Similarly, EDTA and SA treated maize lines showed lower accumulation of reactive oxygen species such as superoxide anion radical (O2-), hydrogen peroxide (H2O2), as well as a decrease in the malondialdehyde (MDA) contents, most importantly in SWAN-LSR-Y and BR9928-OMR-SR-Y maize lines. Catalase (CAT) and superoxide dismutase (SOD) activities were enhanced in SWAN-LSR- Y and BR9928-OMR-SR-Y upon application of EDTA.

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生理盐水条件下启动对3个玉米品系萌发及生化特性的影响

研究表明，盐度的不利影响在同一植物物种的不同品种之间可能有所不同。本研究旨在确定三个新发布的玉米品系在用乙二胺四乙酸（EDTA）和水杨酸（SA）分别以1.0M浓度引发时对盐水条件的耐受性；用蒸馏水处理种子作为对照。测试了0、50、100、150和300mM NaCl的浓度。该实验采用3x3x5析因处理安排，进行三次重复。结果表明，玉米品系与盐度之间存在显著的相互作用，其中在50mM的盐度水平下，品系SWAN-LSR-Y的发芽率比其他品系受到的影响大得多，并且在通过150至300mM的NaCl时，其发芽速度比其他品线受到的影响更大。幼苗长度（胚根和胚芽）和种子活力指数受到引物和盐度之间显著相互作用的影响，其中当盐度不超过150mM时，EDTA比其他引物增强了更好的幼苗生长。OMR-LSR-SY玉米系在该浓度下没有表现出耐受性。类似地，EDTA和SA处理的玉米系表现出较低的活性氧物质积累，如超氧阴离子自由基（O2-）、过氧化氢（H2O2），以及丙二醛（MDA）含量的降低，最重要的是在SWAN-LSR-Y和BR9928-OMR-SR-Y玉米系中。EDTA对SWAN-LSR-Y和BR9928-OMR-SR-Y的过氧化氢酶（CAT）和超氧化物歧化酶（SOD）活性均有增强作用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Bioagro Agricultural and Biological Sciences-General Agricultural and Biological Sciences

CiteScore

1.40

自引率

37.50%

发文量

期刊介绍： Bioagro es una revista científica del Decanato de Agronomía de la Universidad Centroccidental “Lisandro Alvarado” (UCLA). Su periodicidad es cuatrimestral y se publica en los meses de enero, mayo y septiembre. Cada trabajo es revisado por al menos dos especialistas en el área, externos a la revista, de cuya opinión depende la aceptación definitiva. Se utiliza sistema de arbitraje doble ciego. La revista va dirigida, fundamental pero no exclusivamente, a profesionales y técnicos del área agrícola. Su objetivo es publicar trabajos científicos originales e inéditos en ciencias agrícolas que enfoquen aspectos de agronomía, botánica y propagación de plantas, entomología y zoología, suelos, fitopatología y protección vegetal, ingeniería agrícola, genética y mejoramiento de plantas, ecología, procesamiento de productos agrícolas, biotecnología y sociales. También pueden ser publicados artículos cortos en los que se presenten descubrimientos científicos, desarrollos tecnológicos y resultados de diagnósticos integrales, en la modalidad de Notas Técnicas. En Venezuela, se encuentra en las bibliotecas de todas las universidades e institutos de educación superior que ofrecen carreras agronómicas, así como de los entes oficiales de investigación agropecuaria. En el exterior, la revista llega a universidades y/o institutos de investigación agrícolas de todos los países de América Latina así como Estados Unidos, Canadá y España.