Moisture stress tolerance

Hill rices (Oryza sativa L.) are direct seeded rices grown on hill slopes of different gradients. These landraces have evolved under rainfed and harsh environmental conditions and may possess genes governing adaptation traits such as tolerance to cold and moisture stress.

15p vinarcissa 21-03-2023 4 1   Download

The present study was conducted to evaluate mango (Mangifera indica L.) rootstocks under induced moisture stress condition for various morpho-physiological traits. The result revealed that the rootstock Totapuri recorded minimum plant height (23.55 cm), stem diameter (1.16 cm), leaf area (380.30cm²), stomatal density (78.36 No./mm²), plant biomass (98.00 g) and maximum relative water content (90.26 %).

6p chauchaungayxua12 29-07-2021 13 1   Download

Drought tolerance is accompanied by number of traits and they are regulated by the many genes, hence targeting single gene against moisture stress will not be effective in crop improvement. Use of transcription factors (TFs) to target corresponding multigene is current trend. As per the many research findings, dehydration responsive element binding proteins (DREB) are reported as an important TFs that known to induces number of abiotic stress-related genes and impart the stress tolerance in plants.

13p cothumenhmong11 11-05-2021 9 2   Download

Water deficit stress is one of the important factors limiting chickpea production in arid and semiarid regions. Water deficit induced b Polyethylene glycol (PEG) affect physiological and biochemical changes in Chickpea. This investigation was undertaken to evaluate morpho-physiological parameters, levels of osmolytes and activities of antioxidative enzymes under PEG 6000 induced osmotic moderate and severe stress in pot. The plants were subjected to two progressive stresses: moderate (-0.4 MPa) and severe stress (-1.2 MPa).

13p dayhoctainha 10-09-2020 12 1   Download

Hence, in the present investigation PEG-6000 used to develop moisture stress under in vitro condition mainly to study the response of genotypes to moisture stress condition.

9p kequaidan7 01-09-2020 6 2   Download

To investigate the water-deficit tolerance, 3 cotton genotypes (Bunny Bt, Pratima and Anjali.) were grown under normal irrigation and water-deficit conditions. Moisture is a key factor affecting growth and yield of Cotton in which stress is the most important factor limiting crop productivity due to adverse effect on fruit production, square/boll shedding and lint yield as well as fiber quality properties of Cotton. If water supply is limited during boll development it could result in significantly lower yields. In this study stress imposed with four watering treatments viz.

8p angicungduoc6 22-07-2020 17 1   Download

A field experiment was conducted during Rabi 2015 in a Randomized block design (RBD) with three replications to screen 12 hybrid maize germplasm lines viz., Z630-1, Z630-2, Z630-3, Z630-4, Z637-1, Z637-2, Z695-1, Z695-2, Z695-3, Z638-1, Z638-2, Z638-3 along with three hybrid checks NK6240, P1O3396 and 900MGold. This study was carried out to screen the hybrid germplasm lines exposed to water deficit stress during the reproductive growth stage. The analysis of variance revealed significant differences among the test germplasm line for all the parameters recorded.

16p gaocaolon5 14-06-2020 5 0   Download

Sorghum [Sorghum bicolor (L.) Moench] is one among the five major cereals of the world, being grown extensively in tropical and sub-tropical climate. In the present investigation six existing and recently released cultivars of Sorghum were taken to test their water stress tolerance.

8p trinhthamhodang1213 02-06-2020 13 1   Download

Sesame is one of the oldest oil crop, cultivated in tropical and sub tropical areas. Tolerance to moisture stress is one of the important criteria in the cultivation of sesame in many countries of the world. Hence, experiments were conducted to screen ten ruling varieties of sesame viz., CO1, SVR1, SVPR1, VRI 1, VRI 2, TMV 3, TMV 4, TMV 5, TMV 6 and TMV 7 under induced drought condition using Poly Ethylene Glycol (PEG 6000) @ 3, 6, 9, 12, and 15 percentage concentrations.

9p trinhthamhodang5 16-05-2020 13 1   Download

Physio-biochemical parameters were recorded under moisture stress and normal condition of tolerant and susceptible cotton G. hirsutum genotypes, when plants experiencing moisture stress at 65-67 DAS (15-17 days of water withholding and 80-82 DAS (30 days water withholding).

19p quenchua4 06-04-2020 18 1   Download

Fluorescent pseudomonad bacteria, a major constituent of Rhizobacteria, enhance the plant growth through diverse mechanisms. The association between plant and fluorescent pseudomonad bacteria contributes to the successful thriving of plants in extreme environments featured by moisture stress. The enzyme has been noticed in a few numbers of bacteria and which helps the plant growth and development during biotic and abiotic stress situations with the depletion of stress levels of ethylene production in plant system.

12p caygaocaolon4 04-04-2020 18 1   Download

Drought is considered to be one of the major abiotic stress factors that severely limit grain yield production, often causing extensive economic loss to agriculture. Improving drought tolerance in maize has become one of the top priorities in maize breeding programs.

6p nguaconbaynhay4 22-03-2020 12 2   Download

Responses of 4 cultivars of rice viz. NDR-8002, TCA-48, IR-42 and BPT 5204 to varying levels of moisture deficit stress at flowering stage were assessed in the plastic tubs for their relative tolerance to drought. Moisture deficit adversely affected the apparent translocation rate, relative leaf water content, total chlorophyll content and total soluble carbohydrate content, while proline accumulation enhanced irrespective of varieties. Grain yield decreased conspicuously in all the varieties in response to water stress.

11p caygaocaolon2 11-03-2020 12 2   Download

A field experiment was conducted with twelve hybrid germplasm lines of CYMMIT along with three hybrid checks replicated thrice. Those germplasm lines were evaluated under moisture deficit stress for drought tolerance during the Rabi season 2015. The stress was imposed during the reproductive phase of development and the readings were recorded three times at 55 DAS, 60 DAS, 90 DAS. The parameters recorded were Leaf: Stem ratio, Root length, Root volume, Root: Shoot ratio, Root dry weight, Stem dry weight and leaf dry weights of the plant along with total drymatter, and grain yield.

10p caygaocaolon3 27-02-2020 17 1   Download

Environmental factors that plants face during their life cycle are dynamic in nature. Plants require adequate amount of water for their growth and development. At the event of moisture deficit in the soil, the water potential in the cells drastically reduced. Under salt stress, plants succumb to salt injuries in addition to dehydration. Plants try to combat such situation by adopting a variety of mechanisms, including closure of stomata that limits water loss and exclusion of Na+ to reduce salt injury.

8p cothumenhmong3 22-02-2020 14 0   Download

In order to investigate the relationships among the drought tolerance/resistance indices an experiment was conducted in alpha lattice design with two replications under two moisture regimes during the crop season 2015-16. Thirteen indices, which were most frequently used in plant breeding, were compared based on grain yield of 20 durum wheat genotypes. Highly significant differences for yield (Yp and Ys) and all drought tolerance indices except TOL were observed which indicated that genotypes were differing for genes controlling yield and drought tolerance indices.

14p kethamoi2 15-12-2019 20 0   Download

Lentil (Lens culinaris Medikus) is an important winter season grain legume crop, mostly grown on residual soil moisture and is frequently subjected to terminal drought and heat stress, that results in low and variable seed yields. Moreover, delay in sowing even for two weeks causes the reproductive and grain filling phase of this crop to coincide with a period of substantially high temperature resulting in yield losses by reduced seed set, seed weight and accelerated senescence.

10p kethamoi2 14-12-2019 24 0   Download

A pot culture experiment was conducted at ICAR-IISWC, Ballari, Karnataka during 2016 to screen seven paddy genotypes receiving zinc fertilization for their zinc use efficiency under various moisture regimes. The experiment was laid out in a completely randomized design with two replications. At 30 days after transplanting (DAT), the plant height in M2 treatment (Saturated Soil Culture) was higher which was at par with the continuous flooding (M1) and was significantly different with the Alternate Wetting and Drying (M3). The genotype NLR 34449 produced significantly taller plants (23.

9p kequaidan2 13-12-2019 12 0   Download

In recent years due to drought yield of crop is adversely affected. In this context to increase the crop yield by utilising drought prone region, influences of moisture stress tolerant rhizobacteria on growth parameter of sorghum plant were examined under moisture stress conditions. Four autochthonous moisture stress tolerant bacterial strain isolated from semiarid region identified as Serratia marcescens strain L1SC8, Pseudomonas putida strain L3SC1, Enterobacter cloacae strain L1CcC1 and Serratia marcescens strain L2FmA4.

10p kequaidan2 13-12-2019 21 0   Download

Macronutrient specially K and micronutrient malnutrition, and particularly deficiency in zinc (Zn), iron (Fe) and manganese (Mn), afflicts over three billion people worldwide. A pot culture experiment was conducted to study the effect of water stress on potassium and some micronutrient accumulation in straw and grains of wheat genotypes. Eight wheat genotypes were grown, 4 tolerant and 4 susceptible against water stress for the experiment. Moisture stress treatment to plants was given at anthesis through withdrawal of water.

12p cothumenhmong1 08-12-2019 16 0   Download