INFLUENCE OF EXOGENOUS APPLICATION OF PROLINE ON SOME PHYSIO-BIOCHEMICAL PARAMETERSOF MAIZE (Zea mays L.) UNDER DROUGHT STRESS
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Author:
RUKHSANA QAMAR
Citable URI :
https://vspace.vu.edu.pk/detail.aspx?id=383
Publisher :
Virtual University
Date Issued:
7/7/2020 12:00:00 AM
Abstract
In natural the plant is exposed to different environmental constrains. The abiotic
factors are caused by salinity, drought, extreme temperature and heavy metals. In these
stresses, the deficiency is main abiotic pressure that reduced the escalation of plant,
development& yield. In reply to deficiency of pressure, plant produces different types
of antioxidants and osmolytes. In these osmolytesproline and glycinebetaine are most
popular. The exogenous application of proline is most important against stress. Maize
is an important plant which belongs to family Poaceae. That could be cooked in terms
of food, feed & forage crop. This study was designed to examine the biochemical &
proteomic profile under drought and pre-Soakedproline concentration. The test was
conduct in randomized set of block through three replicates. The two varieties of maize
were grown in normal condition with and without pre-Soakedproline. The plant after
germination of three weeks was subjected to drought stress by withdrawing normal
irrigation. After one week of stress, the plant was harvested. The shoot size was
minimized below deficiency of stress in 0ppm increased in 200ppm in drought stress.
While the root length was minimized below lack stress and lesser reduction occurs in
400ppm concentration of proline. The dry & fresh weight of shoot & root became
reduced in drought while less reduction in 200ppm pre-Soakedproline. The total
soluble proteins and free amino acids was reduced under drought stress while lesser
reduction occurs in 400ppm pre-Soakedproline. The chlorophyll contents was
decreased in both varieties. The pre-Soaked 400ppm proline in control and drought
showed better chlorophyll contents. The different expression was shown in reducing
condition. The 200ppm of proline is most effective in both varieties. The varieties Hay
corn is most tolerant toward the drought stress.
URI :
https://vspace.vu.edu.pk/details.aspx?id=383
Citation:
Qamar,R(2019).INFLUENCE OF EXOGENOUS APPLICATION OF PROLINE ON SOME PHYSIO-BIOCHEMICAL PARAMETERSOF MAIZE (Zea mays L.) UNDER DROUGHT STRESS. Virtual University of Pakistan(Lahore, Pakistan)
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Final Version
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