TITLE:
Phenotyping of Hybrid Maize (Zea mays L.) at Seedling Stage under Drought Condition
AUTHORS:
Shirin Aktar, Nilima Hossain, Mohammad Golam Azam, Masum Billah, Priya Lal Biswas, Mohammad Abdul Latif, Motiar Rohman, Shamim Ara Bagum, Mohammad Shalim Uddin
KEYWORDS:
Maize, Stress, Drought, Phenotypes, Tolerant
JOURNAL NAME:
American Journal of Plant Sciences,
Vol.9 No.11,
October
16,
2018
ABSTRACT: Drought
is envisaged as the greatest demolishing natural impacts throughout the world
since it has observed extensive place of agronomical land sterile almost the
world. It’s the significant crop output-limiting producer,
and elaborated learning of its result on plant enhancement dictation is
diametrical. At present, drought tolerant hybrid maize has been trying to
induce Bangladesh especially drought affected zone to identify the drought
endurance maize genotypes. Consequently, a feasible pot study of 49 hybrid
maize genotypes were directed to determine an adequate drought level to promote
aliment and promotion of maize plant below the water stress conditions with
treatment (control and drought) and three replications. The data were received after 35 days of sowing using appropriate procedures.
Specially, the stomata were collected by the white transparent nail polish from
the lower part of leaves. Descriptive statistic of the all traits like
percentage of SPAD, leaf rolling (LR), maximum root length (MRL), maximum shoot
length (MSL), root dry matter (RDM), shoot dry matter (SDM), length of stomata
(LS), width of stomata (WS), thickness of stomata (TS), total dry matter (TDM) and ANOVA for control and
drought condition individually showed significant (P The first fourth principal components (PCs) narrated about 82.0% of the total
variation. Cluster analysis placed the 49 hybrid into 6 main
groups among those cluster; groups five showed the maximum number mean value of
traits. The highest positive relationship was obtained from TS, WS, RDM, SDM and TDM traits by forming
genotype-traits bi-plot of 11traits of 49 genotypes. After analyzing, it is
explicit that G18 (CML-80 × IPB911-16) and G22 (CZI-04 × IPB911-16) were the
most tolerant hybrids maize genotypes and very susceptible hybrids maize
genotypes were G16 (P-12 × CML487), G34 (CML-32 × PB911-16) and G37 (P-33 ×
CML487). It is expected that the higher expression of considered traits might
be obligate for better yield under drought stress.