Rooting response of sensitive, moderately tolerant and tolerant plants to boron under exogenous zinc sulfate

The role of Zinc in alleviating B-toxicity in terms of adventitious root formation (ARF) in cuttings of plants differing in their sensitivity to boron such as Mung bean (sensitive), Cucumber (Moderately tolerant) and Tomato (tolerant) was studied. The toxic levels of boron were 200,300 and 400 µg/ml...

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Bibliographic Details
Main Authors: Hussein, Khalid Ali, Alwan, Abdoun Hashim, Shaheed, Abdullah Ibrahim
Format: Conference Proceeding
Language:English
Subjects:
Boron
Pretreatment
Toxicity
Zinc
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Summary:The role of Zinc in alleviating B-toxicity in terms of adventitious root formation (ARF) in cuttings of plants differing in their sensitivity to boron such as Mung bean (sensitive), Cucumber (Moderately tolerant) and Tomato (tolerant) was studied. The toxic levels of boron were 200,300 and 400 µg/ml for Mung bean, Cucumber and Tomato respectively. These levels reduced growth parameters in terms of rooting response to 50% or beyond (55.16%, 50.83% and 53.49%) for Mung bean, Cucumber and Tomato respectively compared to control. Boron detoxification occurred completely by supplying Zinc sulphate prior to toxic–B treatment (pre-treatment) in all species compared to its supply as post-treatment or simultaneously with toxic –B. The protective role of Zinc – sulphate was significantly enhanced the average of root number/cutting to its levels in control treatment (in absence of toxic-B) in all species under study.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.5123111