Water Stress Limits Growth and Physiological Performance of Jatropha curcas L. Seedlings

Jatropha (Jatropha curcas L.) is a potential biodiesel plant that gained much attention in non-oil production countries. We investigated the ability of the species to cope with water deficit occurring in semi-arid zones like Senegal climatic conditions. The layout of the experiment was a randomized complete blocks design with two factors (level and frequency of irrigation) and 6 repetitions. The trial was conducted from December 2012 to June 2013 in CERAAS/ISRA at Thiès, Senegal. Potted Jatropha seedlings were exposed, after three months under similar well-watered conditions, to three water regimes (100%, 50% and 25% of ﬁeld capacity, respectively C100, C50 and C25) and two frequency of watering once and twice watering a week(F1 and F2, respectively). The different treatments didn’t affect significantly collar diameter and plant height during the time of the experimentation. Nevertheless, the trend line is up for collar diameter and plant height in well-watered plants. For the same frequency of irrigation, biomass accumulated was high in C100. No difference was found between plants biomass in C25-F1 and C25-F2. For physiological parameters, there are no differences between the treatments at the onset of stress. However, after 2 weeks of stress, photosynthesis, stomatal conductance and transpiration were affected permanently in treatments C100-F1, C50-F1 and C25-F1 and their values never reached those of plants of C100-F2, 50-F2 and C25-F2. The opposite was noted for leaf temperature. For the same frequency of irrigation, photosynthesis, stomatal conductance and transpiration were higher in C100 and the opposite occurred for the leaf temperature. These results demonstrate that growth and productivity of Jatropha are significantly affected by water stress conditions. Its need to be watered regularly to maintain physiological functions and biomass production definitely highlights that its growth in semi-arid zones is economically unlikely.

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Seasonal variations of photosynthesis, gas exchange, quantum efficiency of photosystem II and biochemical responses of Jatropha curcas L. grown in semi-humid and semi-arid areas subject to water stress

Industrial Crops and Products ◽

10.1016/j.indcrop.2012.04.003 ◽

2013 ◽

Vol 41 ◽

pp. 203-213 ◽

Cited By ~ 38

Author(s):

Claudiana Moura dos Santos ◽

Valtair Verissimo ◽

Humberto Cristiano de Lins Wanderley Filho ◽

Vilma Marques Ferreira ◽

Polyana Geysa da Silva Cavalcante ◽

...

Keyword(s):

Water Stress ◽

Gas Exchange ◽

Photosystem Ii ◽

Quantum Efficiency ◽

Seasonal Variations ◽

Jatropha Curcas ◽

Arid Areas ◽

Jatropha Curcas L ◽

Biochemical Responses ◽

Semi Arid

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Performance of Jatropha curcas L. in Semi-arid Zone: Seed Germination, Seedling Growth and Early Field Growth

Notulae Scientia Biologicae ◽

10.15835/nsb528961 ◽

2013 ◽

Vol 5 (2) ◽

pp. 169-174 ◽

Cited By ~ 1

Author(s):

Sharif AHAMAD ◽

Soumai Kant JOSHI ◽

Mohommad ARIF ◽

Zakwan AHMED

Keyword(s):

Growth Performance ◽

Plant Height ◽

Jatropha Curcas ◽

Arid Zone ◽

Growth Parameters ◽

Marginal Lands ◽

Jatropha Curcas L ◽

Carry Over ◽

Semi Arid ◽

Number Of Branches

There is a lack of information on basic agronomic properties of Jatropha curcas L. (jatropha) cultivation on the marginal lands in the semi-arids. Evaluation of agronomic performance of identified elite strains of J. curcas in marginal lands would be of paramount importance for addressing gap areas in their agronomic properties and subsequently for harnessing their optimum economic potentials. The present study undertook the task of analysing the growth performance of a high oil bearing elite strain of J. curcas–DARL-2 in degraded land in semi-arid zone of Deccan Plateau, India. While undertaking the assessment of growth performance of elite strain DARL-2, two other native (wild) strains (namely AHN-1 and AHN-2) of J. curcas were also considered so that a comparative evaluation could be carried out. The role of gypsum was also investigated on J. curcas in the nursery stage as well its carry over effects on growth performance of transplanted trees in the field. Two types of substrates, gypsum-treated soil (GS) and untreated soil (SL) were used for growing seedlings of all the three jatropha strains. Seedlings (120-days-old) of DARL-2 exhibited greater plant height, collar diameter and number of branches but root length was greater in the local strains. In the second year of field transplantation, DARL-2 strain exhibited significantly (p<0.05) greater plant height and number of branches/plant. No carry over effects of gypsum treatment were observed in field transplanted plants as none of the growth parameters significantly varied among the substrate types.

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Exploration of physiological and biochemical processes of canola with exogenously applied fertilizers and plant growth regulators under drought stress

PLoS ONE ◽

10.1371/journal.pone.0260960 ◽

2021 ◽

Vol 16 (12) ◽

pp. e0260960

Author(s):

Muhammad Mahran Aslam ◽

Fozia Farhat ◽

Mohammad Aquil Siddiqui ◽

Shafquat Yasmeen ◽

Muhammad Tahir Khan ◽

...

Keyword(s):

Water Stress ◽

Drought Stress ◽

Stomatal Conductance ◽

Plant Growth ◽

Stability Index ◽

Leaf Temperature ◽

Membrane Stability Index ◽

Chemical Fertilizers ◽

Chlorophyll Contents ◽

Water Contents

Environmental stresses may alter the nutritional profile and economic value of crops. Chemical fertilizers and phytohormones are major sources which can enhance the canola production under stressful conditions. Physio-biochemical responses of canola altered remarkably with the use of nitrogen/phosphorus/potassium (N/P/K) fertilizers and plant growth regulators (PGRs) under drought stress. The major aim of current study was to evaluate nutritional quality and physio-biochemical modulation in canola (Brassica napus L.) from early growth to seed stage with NPK and PGRs in different water regimes. To monitor biochemical and physiological processes in canola, two season field experiment was conducted as spilt plot under randomized complete block design (RCBD) with four treatments (Control, Chemical fertilizers [N (90 kg/ha), P and K (45 kg ha-1)], PGRs; indole acetic acid (IAA) 15g ha-1, gibberellic acid (GA3) 15g ha-1 and the combination of NPK and PGRs] under different irrigations regimes (60, 100, 120, 150 mm evaporations). Water stress enhanced peroxidase (POD), catalase (CAT), superoxide dismutase (SOD), polyphenol oxidase (PPO), soluble sugar, malondialdehyde (MDA), proline contents as well as leaf temperature while substantially reduced leaf water contents (21%), stomatal conductance (50%), chlorophyll contents (10–67%), membrane stability index (24%) and grain yield (30%) of canola. However, the combined application of NPK and PGR further increased the enzymatic antioxidant pool, soluble sugars, along with recovery of leaf water contents, chlorophyll contents, stomatal conductance and membrane stability index but decreased the proline contents and leaf temperature at different rate of evaporation. There is positive interaction of applied elicitors to the water stress in canola except leaf area. The outcomes depicted that the combination of NPK with PGRs improved the various morpho-physiological as well as biochemical parameters and reduced the pressure of chemical fertilizers cost about 60%. It had also reduced the deleterious effect of water limitation on the physiology and grain yield and oil contents of canola in field experiments.

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Morphophysiological Traits as Indicators of Genetic Diversity in Brazilian Populations of Jatropha curcas L. Grown Under Water Deficit

Journal of Agricultural Studies ◽

10.5296/jas.v8i3.16707 ◽

2020 ◽

Vol 8 (3) ◽

pp. 527

Author(s):

Leandro Dias da Silva ◽

Fábio Pinto Gomes ◽

Mateus Pires Barbosa ◽

Raul Antônio Araújo do Bonfim ◽

Mikaela Oliveira Souza ◽

...

Keyword(s):

Genetic Diversity ◽

Plant Height ◽

Principal Components ◽

Jatropha Curcas ◽

Biodiesel Production ◽

Physiological Traits ◽

Guaiacol Peroxidase ◽

Jatropha Curcas L ◽

Root Area ◽

Genetic Dissimilarity

Jatropha curcas L. (Euphorbiaceae) is a species grown in tropicalcountries and used for biodiesel production. Morphophysiological traits were analyzed to assess the genetic diversity in nine genotypes of J. curcas under deficit water. Seeds of plants from different populations, collected in diferente brazilian regions, were grown under two water regimes (100% and 50% tank capacity). Multivariate analysis was used to characterize genetic diversity. The UPGMA dendrogram built from the genetic distance group indicated the segregation of genotypes into five groups for growth traits and six groups for physiological traits. Then, an principal components analysis was carried out, to evaluate the pattern of character variations and then segregate the characteristics that could distinguish parental genotypes for use in plant breeding. Results showed 65.50% and 56.02% for the two first principal components of growth and physiological traits, respectively. Total root area was the most determining trait for genetic dissimilarity (18.9%) and group formation, followed by plant height (17.9%) and number of leaves (17.6%). On the other hand, stomatal conductance (gs) (24.9%) and guaiacol peroxidase (GPX) (20.9%) were the most determining physiological traits. The analysis of morphophysiological traits indicated CNPAE-298 and 299 as the most distant genotypes among the plant groups. Under water-limited conditions, total root area, plant height, gs and GPX were the most efficient traits to explain genetic dissimilarity among the genotypes, and for this reason they should be referred as a priority for further studies on genotypes selection in this species.

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Simulation of Jatropha curcas L. Root in Response to Water Stress based on 3D Visualization

Procedia Engineering ◽

10.1016/j.proeng.2012.01.740 ◽

2012 ◽

Vol 28 ◽

pp. 403-408 ◽

Cited By ~ 1

Author(s):

LIU Kenan ◽

YANG Qilianga ◽

GE Zhenyang ◽

LIU Xiaogang

Keyword(s):

Water Stress ◽

Jatropha Curcas ◽

3D Visualization ◽

Jatropha Curcas L ◽

Response To Water

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Water stress imposed on muskmelon (Cucumis Melo L.) with subsurface and surface drip irrigation systems under semi-arid climatic conditions

Irrigation Science ◽

10.1007/s00271-007-0079-7 ◽

2007 ◽

Vol 26 (2) ◽

pp. 131-138 ◽

Cited By ~ 24

Author(s):

E. Dogan ◽

H. Kirnak ◽

K. Berekatoglu ◽

L. Bilgel ◽

A. Surucu

Keyword(s):

Water Stress ◽

Drip Irrigation ◽

Cucumis Melo ◽

Climatic Conditions ◽

Irrigation Systems ◽

Cucumis Melo L ◽

Semi Arid ◽

Surface Drip Irrigation

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Effects of gamma rays on germination and growth in Jatropha curcas L.

Journal of Applied and Natural Science ◽

10.31018/jans.v7i2.715 ◽

2015 ◽

Vol 7 (2) ◽

pp. 964-969 ◽

Cited By ~ 1

Author(s):

Dileswar Nayak ◽

N. S. Patil ◽

L. K. Behera ◽

D. B. Jadeja

Keyword(s):

Leaf Area ◽

Gamma Rays ◽

Jatropha Curcas ◽

Seedling Survival ◽

Germination Percentage ◽

Shoot Length ◽

Growth And Yield ◽

Jatropha Curcas L ◽

Number Of Leaves ◽

Collar Diameter

The present investigation was carried out at the Forestry Research Farm, Navsari Agricultural University; Navsari to evaluate the gamma rays at 10 kR, 20 kR and 30 kR induced variability in Jatropha curcas L. on germination, growth and yield for seven Jatropha genotypes (Phule J-1, Urlikanchan, Hansraj, SKN Big, Chhatrapati, Hansot and MPJ-55). The significantly maximum germination percentage (66.96%), seedling survival (74.18%), seedling collar diameter (0.958cm), shoot length (49.442cm), number of leaves per seedling (7.757) and leaf area (37. 58)was observed in Chhatrapati genotype during nursery stage. While low rate of gamma rays treatment (10 kR) had stimulatory effect for germination percentage, seedling survival, seedling collar diameter, shoot length, number of leaves per seedling and leaf area. However, higher gamma rays doses (30 kR) drastically reduced all studied characters. The interaction effect of genotype and gamma rays were significant for number of leaves per seedling. Further, it was not significant in other traits like germination percentage, seedling survival, seedling collar diameter, shoot length and leaf area.

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