Biological and Clinical Sciences Research Journal
ISSN:
2708-2261
www.bcsrj.com
DOI:
https://doi.org/10.47264/bcsrj0201006
Biol. Clin.
Sci. Res. J., Volume, 2021: e006
Original Research Article
GENETIC EVALUATION FOR MORPHOLOGICAL TRAITS OF CORIANDRUM
SATIVUM GROWN UNDER SALT STRESS
AFTAB A, *HAIDER MA, ALI Q, MALIK A
Institute of Molecular Biology and
Biotechnology, The University of Lahore, Lahore,
Pakistan
Corresponding author email: maounh07@gmail.com
Abstract
The Coriandrum is
most important among the herb which is used as an ingredient in daily human
food. It contains a good amount of antioxidants and health improving
ingredients that save human body cells from diseases. It is very sensitive for abiotic environmental stress conditions involving drought,
heat, and salt stress as important stress conditions. For this purpose, a study
was planned to conduct in the greenhouse of the Institute of Molecular Biology
and Biotechnology, University of Lahore to determine the effects of salt stress
on Coriandrum seedling growth. For our study we have
selected four Coriandrum varieties viz., GAMZE,
EAGLE, SUPER XO, and PAK-ORG. The results revealed that there were significant
differences among the treatments of NaCl
concentrations, Coriandrum genotypes, and the
interactions among the Coriandrum genotypes and salt
concentrations applied. The average Coriandrum
seedling length was recorded as 23.021±1.2026cm while root length was recorded
as 22.0128±1.0027cm. The genotype GAMZE showed higher root and shoot length
which indicated that GAMZE was a higher salt-tolerant genotype and may be used
as a salt-tolerant genotype to improve yield per plant in Coriandrum.
The genotype EAGLE has shown poor performance for all of the studied traits
which indicated that it was a salt-sensitive Coriandrum
genotype. The genetic advance and heritability were found higher for all of the
studied traits. The significant correlation between shoot length and root
length indicated that the genotypes grow longer roots under stress conditions
to increase the shoot length of plants while survive under stressful
environmental conditions. The selection of Coriandrum
genotype on the basis of root length and shoot length may be useful to improve
slat stress tolerance in Coriandrum genotypes for
higher seed and green plant biomass yield.
Keywords: Coriandrum sativum, salt
stress, genetic advance, heritability, seedling traits, root length, shoot
length
Introduction
Dhaniya consist of
dried ripe fruit of Coriandrum sativum Linn Umbeliferae (Evans, 2002), a Slender, glabrous,
branched, cultivated all over Pakistan, giving characteristic aroma when
rubbed. It is annual herb originating from the Mediterranean (Mir, 1992;
Rondon et al., 2011; Vaidya and Gogte, 2000). The whole
plant and especially the unripe fruit, is characterized by a strong
disagreeable odour, wherever the name coriander (from
the Greek k’opis, a bug) (Gruenwalded,
2004). In Pakistan the Coriandrum is grown or cultivated around whole year times in each of the year
as autumn as well as spring seasons of country. With an active involvement for
multinationals in the country, the growing or cultivation of Coriandrum has been improved or increased as
compared with previous years. However, the climatic as well as the soil
conditions in Pakistan has been most responsive and adaptive for Coriandrum seed and green production however the
yield is still very low in Pakistan as compared with other Coriandrum growing countries of
the world (Aissaoui et al., 2008; Ali et al., 2008; Bilal et al., 2020). The
crop protection and it management plays an important role in the improvement of
grain yield and production under every type of environmental conditions. The
management inputs are included as the improved seed varieties, irrigation, the
planting pattern, crop sowing times, the use of fertilizers and crop plant
population play an effective and major role in enhancement of crop plant and
grain yield under any type of environmental condition (Eguale et al., 2007; Handa and Kaul, 1996). The Coriandrum crop plant is generally cultivated or
grown under the irrigated field conditions of Pakistan. The water has been
shortening due to shortage or less of rain falls, the water has been becoming
scarce throughout the whole country which is causing salt stress. The water
limitations and salt stresses have also adverse effects on other crop plants
like other crops (Kansal et al., 2011; Matasyoh et al., 2009).
The significant losses of Coriandrum seed yield have been projected because of drought
which is increasing with the global climate changes in the major Coriandrum producing
areas of the world. The majority of the Coriandrum has been grown under the irrigated conditions of
Pakistan (Mir, 1992;
Ramadan and Mörsel, 2002). The Coriandrum plant suffers due to salt and drought
stress up to 40-80% in yield loss. The salt has been considered one of the
major factors which affect plant growth as well as the seed yield of Coriandrum. There
has been a need for recognizing a suitable and executive technique for Coriandrum cultivation which can resist salt and
drought stress environmental conditions (Ramadan and Mörsel, 2002; Silva et al., 2011). The Coriandrum has higher water demands which can give
higher grain production even when the water, mineral and other soil nutrients
have become sufficient in amount and avail to plants easily, the Coriandrum plant
is also very sensitive (Pharmacopoeia, 2005) for salt and water deficit of moisture stress environment along with
other stress environments like cold, heat, salt and alkaline conditions (Pharmacopoeia, 2005; Saeed and Tariq, 2007).
MATERIALS AND METHODS
Coriandrum is herb plant which is
grown throughout whole world for its use in food, salad and other herbal
byproducts. Coriandrum is very sensitive to abiotic or environmental stress conditions involving
drought, heat, cold and salt stress as important stress conditions. For this
purpose a study was planned to conduct in greenhouse of IMBB (Institute of
Molecular Biology and Biotechnology), The University of Lahore, Lahore to estimate effects of salt stress on Coriandrum seedling growth. For our study we have
selected three Coriandrum varieties viz., GAMZE, EV-097Q, SUPER
XO and PAK-ORG. Seed from selected Coriandrum genotype was used to grow in 54 pots, filled with
2kg pure washed sand. The sand was mixed with 500mg/kg of NaCl
in each of the pot except of the control pots for Coriandrum sowing. The seed of each variety were sown in triplicate pots with
all irrigation requirements in equal manners. To carry out our research work we
have used following sets for treatment of NaCl: T0.
Control or no any salt treatment, T1 0.2Molar NaCl,
T2 0.4Molar NaCl, T3 0.6Molar NaCl, T4 0.8Molar NaCl
and T5 1Molar NaCl. The treatment of salt or NaCl was applied after
the germination of Coriandrum
seeds and data was recorded for various seedling traits. The treatment was
applied and again data was recorded after one week of salt application. The
data recorded for two times from two weeks was pooled to carried analysis of
variance and all pairwaise comparisons for Coriandrum varieties and treatments of salt. Data
was recorded for various morphological traits including, roots per plant, root
length, shoot length, shoot water contents and root water contents. The
recorded data which was statistically analyzed through using analysis of
variance techniques through using SPSS23.1 software.
Results and
discussions
The
results form table 1 revealed that there was significant differences for all
studied traits among the treatments of NaCl
concentrations (0.2Molar, 0.4Molar, 0.6Molar, 0.8Molar and 1Molar) along with
control and Coriandrum genotypes used for research evaluation
and the interactions among the Coriandrum genotypes and salt concentrations applied. The
results also indicated that there was lower coefficient of variation (ranging
from 0.35% to 0.99%) recorded for all studied traits of Coriandrum under effects of
various salt concentrations which indicated that the consistency of results was
higher and predications may be useful for selecting Coriandrum under salt stress to
use as response variable. The heritability wa found higher for root water contents (93.245%)
followed by root length (92.882%), shoot water contents (90.234%), shoot length
(89.2315) and roots per plant (88.089%). The higher heritability indicated that
the selection of Coriandrum genotypes may useful to produce hybrids
or composite varieties of Coriandrum for improving yield under salt stress conditions. The genetic advance was found relative
higher for all of the studied traits which revealed that the selection of Coriandrum genotypes may be useful to produce
synthetic varieties for improved yield under slat stress conditions. The
average length of shoot in Coriandrum genotypes was recorded as 23.021±1.2026cm under
all salt concentration applications. The higher shoot length under salt
concentration indicated that the Coriandrum genotypes
showed tolerance against salt stress and tends to improve plant growth and
development even under salt stress environment (Rahman et
al., 2009; Ramadan et
al., 2003; Singletary,
2016). The results
from all pairwise comparison revealed that there was
higher shoot length of Coriandrum seedlings under the treatment of
0.6Molar NaCl (25.140cm) followed by 0.2Molar NaCl (24.08cm) and 0.4Molar NaCl
(23.037cm) while lowest length of shoot in Coriandrum genotypes which was
found under the application of 1Molar NaCl (21.173cm)
concentration. The higher shoot length under lower NaCl
concentrations indicated that there were litter effects due to salt
applications on growth as well as development of seedlings while with the
increase in the concentration of NaCl application the
seedling length was decreased which showed the adverse effects of salt
applications on Coriandrum seedling growth. The lowest under
higher 1Molar NaCl concentration indicated that the
application of higher concentration caused more damages in the seedling to
reduce growth and development (Mandal and
Mandal, 2015; Msaada et
al., 2007; Ovais et al.,
2018).
Table 1. Analysis of
variance of Coriandrum traits morphological under different salt
concentrations
Source
|
DF |
Shoot
length |
Root
length |
Roots
per plant |
Shoot
water contents |
Root water
contents |
Replication |
1 |
11.4309ns |
9.0828ns |
9.00ns |
10.0238ns |
12.00ns |
Genotypes |
3 |
3.0467* |
7.6075* |
22.6342* |
33.4521* |
3.8611* |
Treatments |
5 |
22.8233* |
25.9515* |
27.9255* |
45.0832* |
21.7500* |
Genotypes ×
Treatment |
15 |
7.6033* |
1.6475* |
23.1908* |
26.2421* |
3.9278* |
Error |
23 |
0.00002 |
0.00001 |
0.00001 |
0.0002 |
0.00001 |
Grand mean |
|
23.021 |
22.0128 |
9.5617 |
84.905 |
79.508 |
Standard Error |
|
1.2026 |
2.0135 |
0.3452 |
3.5012 |
3.0054 |
Coefficient of
variation |
|
0.82 |
0.62 |
0.99 |
0.50 |
0.35 |
Heritability
(h2b.s) |
|
89.231 |
92.882 |
88.089 |
90.234 |
93.245 |
Genetic
advance |
|
18.237 |
13.254 |
17.204 |
16.242 |
18.254 |
*=
significant at 5% probability level, ns = non-significant
Table
1a.
All-Pairwise Comparisons Test of morphological traits
under different salt treatments
Treatments |
Shoot
length |
Root
length |
Roots
per plant |
Shoot
water contents |
Root water
contents |
T0 control |
21.207D |
21.380
D |
9.390 B |
85.146 AB |
79.393 B |
T1
0.2Molar NaCl |
24.080B |
22.080
C |
9.323 B |
85.104 AB |
80.010 A |
T2
0.4Molar NaCl |
23.037C |
19.800
F |
10.423 A |
84.551 B |
79.173 B |
T3
0.6Molar NaCl |
25.140A |
24.933
B |
9.423 B |
85.443 A |
79.484 B |
T4
0.8Molar NaCl |
21.240D |
20.733
E |
9.423 B |
84.621 B |
79.520 B |
T5
1Molar NaCl |
21.173D |
26.727 A |
9.387 B |
84.566 B |
79.469 B |
Table
1b: All-Pairwise Comparisons Test for Coriandrum
genotypes under different salt treatments
Genotypes |
Shoot
length |
Root
length |
Roots
per plant |
Shoot
water contents |
Root water
contents |
SUPER XO |
21.957 C |
22.417 C |
9.4456 B |
85.624 A |
80.683 A |
PAK-ORG |
22.741 B |
2 22.593
B |
9.4939 B |
83.885 C |
78.896 B |
GAMZE |
23.241 A |
22.817 A |
9.7456 A |
85.206 B |
78.946 B |
EAGLE |
20.13 D |
21.134 D |
8.8721 C |
82.133 D |
77.214 D |
The
average length of root in Coriandrum genotypes was recorded as 22.0128±1.0027cm under
all salt concentration applications (Table 1). The higher length of root under
salt concentration showed that Coriandrum or Coriandrum genotypes
showed tolerance against salt stress and tends to improve plant growth and
development even under salt stress environment (Gruenwalded,
2004; Ikeura and
Kobayashi, 2015; Pandey et
al., 2011). The results from all pairwise
comparison revealed that there was higher root length of Coriandrum seedlings under the treatment of 1Molar NaCl
(26.727cm) followed by 0.6Molar NaCl (24.933cm) and
0.2Molar NaCl (22.080cm) while lowest length of roots
in Coriandrum
genotypes was found under the application of 0.4Molar NaCl
(19.800cm) concentration. The higher length of roots under high NaCl concentrations indicated that there were litter
effectiveness due to salt applications on the growth and development of
seedlings while with the decrease in the concentration of NaCl
application the length of roots was decreased which showed negative effects due
to salt applications on Coriandrum
seedling growth (Table 1a). The lowest under 0.4Molar NaCl
concentration indicated that the application of lower concentration caused more
damages in the seedling to reduce growth and development (Coşkuner
and Karababa, 2007; Diederichsen, 1996; Eguale et al., 2007).
The
average roots/plant of Coriandrum
genotypes was recorded as 9.5617±0.3452 under all salt concentration
applications (Table 1). The higher number of roots per plant under salt
concentration indicated that the Coriandrum genotypes
showed tolerance against salt stress and tends to improve plant growth and
development even under salt stress environment (Kansal et
al., 2011; Laribi et
al., 2015; Panngom et
al., 2018). The results from all pairwise
comparison revealed that there was higher number of roots per plant of Coriandrum seedlings under the treatment of 0.4Molar NaCl (10.423) followed by 0.6Molar NaCl
(9.423) and 0.8Molar NaCl (9.423) while lowest
roots/plant of Coriandrum
genotypes was found under the application of 0.2Molar NaCl
(9.323) concentration. The higher roots/plant of Coriandrum under high NaCl concentrations indicated that there were litter
effects of salt applications on the growth and development of seedlings while
with the decrease in the concentration of NaCl
application the roots/plant of Coriandrum was decreased which showed the adverse effects of
salt applications on Coriandrum seedling growth (Table 1a). The lowest
under 0.2Molar NaCl concentration indicated that the
application of lower concentration caused more damages in the seedling to
reduce growth and development (Matloup et
al., 2017; Rebey et al.,
2019; Sankaranarayanan
et al., 2012; Sen et al.,
2008). The average shoot water content of Coriandrum genotypes was recorded as
84.905±3.5012% under all salt concentration applications. The higher shoot
water content under salt concentration indicated that the Coriandrum genotypes showed tolerance against salt stress and tends to
improve plant growth and development even under salt stress environment (Godara et al.,
2014; Hnamte et
al., 2013; Malhotra et
al., 2006). The results from all pairwise
comparison revealed that there was higher shoot water contents in Coriandrum seedlings
under the treatment of 0.6Molar NaCl (85.443%)
followed by control (85.146%) and 0.2Molar NaCl
(85.104%) while lowest shoot water contents of Coriandrum genotypes was found under
the application of 0.4Molar NaCl treatment (84.551%)
concentration. The higher shoot water content under high NaCl
concentrations indicated that there were litter effects for salt applications
on the growth and development of seedlings while low NaCl
treatment the root dry weight was decreased which showed the adverse effects of
salt applications on Coriandrum seedling growth. The low NaCl treatment indicated that the application of low
treatment caused more damages in the seedling to reduce growth and development (Rondon et
al., 2011; Sahu et al.,
2014).
The
average root water content of Coriandrum genotypes
was recorded as 79.508±3.0054% under all salt concentration applications (Table
1). The higher root water content under salt concentration indicated that the coriandrum
genotypes showed tolerance against salt stress and tends to improve plant
growth and development even under salt stress environment (Dadiga et
al., 2015; Jamali, 2012;
Khan and Parveen, 2018; Mehta et al., 2011; Singh, 2013). The results from all pairwise
comparison revealed that there was higher root water contents in coriandrum
seedlings under the treatment of 0.2Molar NaCl
(80.010%) followed by 0.8Molar NaCl (79.520%) while
lowest root water contents of Coriandrum genotypes was found under the application of
0.4Molar NaCl treatment (79.173%) concentration
(Table 1a). The higher root water content under low NaCl
concentrations indicated that there were litter effects of salt applications on
the growth and development of seedlings while high NaCl
treatment the root dry weight was decreased which showed the adverse effects of
salt applications on Coriandrum seedling growth. High NaCl treatment indicated that the application of high
treatment caused more damages in the seedling to reduce growth and development (Abdollahi et
al., 2016; Dash et al.,
2019; Mohammadipour
and Souri, 2019; Singh, 2015).
The
results showed that the variety GAMZE showed higher roots per plant, root water
contents, shoot water contents, root and shoot length which indicated that
GAMZE was higher salt tolerant genotype and may be used as salt tolerant
genotype to improve yield per plant in Coriandrum. The genotype EAGLE has shown poor performance for
all of the studied traits which indicated that it was salt sensitive Coriandrum
genotype (Table 1b).
Table 2. Survival
percentage of Coriandrum
genotypes under different salt treatments
Treatments |
GAMZE |
EAGLE |
PAK-ORG |
SUPER
XO |
T0 control |
100 |
100 |
100 |
100 |
T1
0.2Molar NaCl |
89.34 |
78.43 |
81.23 |
82.35 |
T2
0.4Molar NaCl |
83.85 |
72.35 |
80.90 |
80.25 |
T3
0.6Molar NaCl |
81.20 |
70.23 |
82.45 |
78.54 |
T4
0.8Molar NaCl |
78.09 |
67.98 |
78.82 |
79.32 |
T5
1Molar NaCl |
79.04 |
62.20 |
77.09 |
78.23 |
The results from table 2 indicated that the genotype GAMZE
showed higher survival rate percentage under all of the salt stress conditions
as compared with other genotypes while the genotype EAGLE showed lower survival
rate. It was also found that the survival rate was decreased in all of the
genotypes with increased in salt stress effects. The decrease in survival
indicated that the salt stress caused harmful effects on Coriandrum genotypes while
the genotype GAMZE showed relatively higher survival rate which revealed that
it may be used as salt tolerance Coriandrum genotype (Mazhar et
al., 2020; Shafique,
2020; Zubair et
al., 2016). The results from table 3 indicated that there was a
significant and positive correlation of shoot length with root length, roots
per plant and shoot water contents. The significant correlation between shoot
length and root length indicated that the genotypes grow longer roots under
stress conditions to increase the shoot length of plants while survive under
stressful environmental conditions. The selection of Coriandrum genotype on the basis
of root length and shoot length may be useful to improve slat stress tolerance
in Coriandrum
genotypes for higher seed and green plant biomass yield (Ali et al.,
2013; Ali et al.,
2016; Ali et al.,
2014).
Table
3.
Correlation for morphological traits of Coriandrum genotypes under
different salt treatments
Traits |
Shoot
length |
Root
length |
Roots
per plant |
Shoot
water contents |
Root
length |
0.4258* |
|
|
|
Roots
per plant |
0.3712* |
0.5623* |
|
|
Shoot
water contents |
0.4622* |
-0.3482* |
0.0023 |
|
Root
water contents |
0.2381 |
0.4526* |
0.3284* |
0.5291* |
*=
significant at 5% probability level
Conflict
of interest
The authors declared absence of conflict of interest.
References
Diederichsen, A.
(1996). "Coriander: Coriandrum Sativum L," Bioversity International.
Handa, S., and Kaul, M.
K. (1996). Supplement to cultivation and utilization of medicinal plants.