Rooting Response of Sensitive, Moderately Tolerant and Tolerant Plants to Boron under Exogenous Zinc sulfate.

Autor: Hussein, Khalid Ali, Alwan, Abdoun Hashim, Shaheed, Abdullah Ibrahim
Předmět:
Zdroj: AIP Conference Proceedings; 2019, Vol. 2144 Issue 1, p040010-1-040010-9, 9p
Abstrakt: 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. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index