Effect of seed priming on moisture stress tolerance and yield attributes of onion in Adi-Gudom, Northern Ethiopia

2015 ◽  
Vol 6 (1) ◽  
pp. 66
Author(s):  
Ygzaw Wendm ◽  
Aregay Negash
Keyword(s):  
Stress Tolerance ◽  
Seed Priming ◽  
Moisture Stress ◽  
Northern Ethiopia ◽  
Yield Attributes

scholarly journals Seed Priming with Potassium Nitrate and Gibberellic Acid Enhances the Performance of Dry Direct Seeded Rice (Oryza sativa L.) in North-Western India

Agronomy ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 849
Author(s):  
Buta Singh Dhillon ◽  
Virender Kumar ◽  
Pardeep Sagwal ◽  
Navjyot Kaur ◽  
Gurjit Singh Mangat ◽  
...  
Keyword(s):  
Gibberellic Acid ◽  
Grain Yield ◽  
Oryza Sativa L ◽  
Seed Priming ◽  
Potassium Nitrate ◽  
Growth And Yield ◽  
Western India ◽  
Yield Attributes ◽  
Crop Establishment ◽  
Direct Seeded

Poor early growth and uneven crop establishment are reported as the major bottlenecks in wide-scale adoption and optimal yield realization of dry direct-seeded rice (DSR). Seed priming can potentially help overcome these problems in DSR. Therefore, laboratory and field studies were conducted at Punjab Agricultural University, Ludhiana, India, during kharif/wet-season 2018 and 2019 to evaluate the effect of different priming techniques on germination, establishment, growth, and grain yield of rice under DSR conditions. The following priming treatments were evaluated: dry non-primed seed (control), hydropriming with distilled water, halopriming with 2.0% potassium nitrate, hormopriming with 50 ppm gibberellic acid (GA3), and osmopriming with polyethylene glycol (PEG)(−0.6 MPa), each with 12 and 24 h priming duration. In 2019, priming treatments were tested under two DSR establishment methods—conventional DSR (sowing in dry soil followed by irrigation) and soil mulch DSR (locally known as vattar DSR) (sowing in moist soil after pre-sowing irrigation), whereas in 2018, priming treatments were evaluated under conventional DSR only. In both years, halopriming and hormopriming resulted in a 7–11% increase in rice yields compared to non-primed dry seed (control). Osmopriming resulted in a 4% yield increase compared to control in 2018 but not in 2019. The higher yields in halopriming and hormopriming were attributed to higher and rapid germination/crop emergence, better root growth, and improvement in yield attributes. Priming effect on crop emergence, growth, and yield did not differ by DSR establishment methods and duration of priming. Conventional DSR and soil mulch DSR did not differ in grain yield, whereas they differed in crop emergence, growth, and yield attributes. These results suggest that halopriming with 2.0% potassium nitrate and hormopriming with 50 ppm GA3 has good potential to improve crop establishment and yield of rice in both conventional and soil mulch DSR systems.

Effect of Seed Priming on Abiotic Stress Tolerance in Plants

2019 ◽  
pp. 29-46 ◽  
Author(s):  
V.K. Choudhary ◽  
Subhash Chander ◽  
C.R. Chethan ◽  
Bhumesh Kumar
Keyword(s):  
Abiotic Stress ◽  
Stress Tolerance ◽  
Abiotic Stress Tolerance ◽  
Seed Priming

scholarly journals Unravelling genetic variability for moisture stress tolerance in Indian mustard and identification of high breeding value donor lines

2021 ◽  
Vol 42 (6) ◽  
pp. 1478-1487
Author(s):  
S.K. Sandhu ◽  
◽  
MS. Sunayana ◽  
L. Pal ◽  
I. Rialch ◽  
...  
Keyword(s):  
Stress Tolerance ◽  
Brassica Juncea ◽  
Indian Mustard ◽  
Moisture Stress ◽  
Introgression Lines ◽  
Breeding Value ◽  
Drought Susceptibility Index ◽  
Land Race ◽  
Rainfed Conditions ◽  
Best Linear Unbiased

Aim: Identification of high breeding value donor lines harbouring tolerance to moisture stress from diversity stock of 443 genotypes of Brassica juncea. Methodology: Germplasm stock of 443 Indian mustard (Brassica juncea L.) genotypes, comprising introgression lines, land races, old cultivars and advance breeding lines, were evaluated under two environments viz., irrigated and rainfed conditions to check the variability for yield and related traits. Statistical software META-Rver 6.0 (Multi Environment Trial Analysis using R) was used for computation of Best Linear Unbiased Predictions, Analysis of Variance (ANOVA), Genetic Correlations and Heritability. Drought susceptibility index and per cent seed yield reduction under rainfed conditions were used as indicators to determine moisture stress tolerance in genotypes. Results: The variability for moisture stress tolerance has been unravelled in a diverse genetic stock of Brassica juncea under two environments: irrigated and rainfed. For high prediction accuracy, the ranking of genotypes was done based on Best Linear Unbiased Predictions for seed yield and its component traits. PBR-378, RGN-329, RB-73, RB-50 and PBR-422 and Giriraj were identified as moisture stress tolerant genotypes. One land race Sahib 36 and three introgression lines viz., MCP 12-211, PTJ-3-69 and MSC-3 have also been identified as potential genetic resources for moisture stress tolerance. Principal component analysis based on biplots depicted specific distribution of variables for each environment. Interpretation: This study led to the identification of potential donors for moisture stress tolerance with high predictive accuracy. Low drought susceptibility index and high breeding value in a land race and three introgression lines derived from Erucastrum cardaminoides, B. tournefortii and B. carinata emphasized their utilization as potential genetic resources to breed for moisture stress tolerance in B. juncea.

scholarly journals Effect of Weather Parameters on Yield and Yield Attributes under Aerobic Rice Cultivation during Navarai Season

2020 ◽  
pp. 115-121
Author(s):  
S. Pazhanisamy ◽  
Al. Narayanan ◽  
V. Sridevi ◽  
Abhinandan Singh ◽  
Amit Kumar Singh
Keyword(s):  
Grain Yield ◽  
Aerobic Condition ◽  
Seed Priming ◽  
Aerobic Rice ◽  
Rice Grain ◽  
College Of Agriculture ◽  
Yield Attributes ◽  
Correlation Studies ◽  
Weather Parameters ◽  
Jawaharlal Nehru

A field experiment was conducted during Navarai season of 2017 at research farm of Agronomy, Pandit Jawaharlal Nehru College of Agriculture and Research Institute, Karaikal, Puducherry, India on investigate the performance of seed priming practices at different dates of sowing (February 6th, February 13th and February 20th) under aerobic condition. The results indicated that among the dates of sowing, crop sown on 6th February produced higher grain yield of 2591 kg ha-1. Correlation studies revealed that the direct weather parameters such as maximum and minimum temperature, rainfall, morning and evening relative humidity, total evaporation were significantly contributing to the rice grain yield and DMP. Similarly, the derived weather parameters viz., mean Diurnal Variation Temperature (DVT) total Growing Degree Day (GDD), total Helio Thermal Units (HTU), total Photo Thermal Units (PTU) and total Heat Unit Efficiency (HUE) were also significantly contributing to the rice grain yield. From the studyprovedthatthe sowing window February 6thto be more effective for realizing higher productivity of aerobic rice during Navarai season at Karaikal district of Puducherry.

Emerging investigator series: molecular mechanisms of plant salinity stress tolerance improvement by seed priming with cerium oxide nanoparticles

2020 ◽  
Vol 7 (8) ◽  
pp. 2214-2228 ◽  
Author(s):  
Jing An ◽  
Peiguang Hu ◽  
Fangjun Li ◽  
Honghong Wu ◽  
Yu Shen ◽  
...  
Keyword(s):  
Stress Tolerance ◽  
Cerium Oxide ◽  
Salinity Stress ◽  
Molecular Mechanisms ◽  
Seed Priming ◽  
Engineered Nanomaterials ◽  
Cerium Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Plant Seeds ◽  
Salinity Stress Tolerance

Engineered nanomaterials interfaced with plant seeds can improve stress tolerance during the vulnerable seedling stage.

scholarly journals Genome wide in-silico miRNA and target network prediction from stress responsive Horsegram (Macrotyloma uniflorum) accessions

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Jeshima Khan Yasin ◽  
Bharat Kumar Mishra ◽  
M. Arumugam Pillai ◽  
Nidhi Verma ◽  
Shabir H. Wani ◽  
...  
Keyword(s):  
Energy Conservation ◽  
Stress Tolerance ◽  
Regulatory Networks ◽  
Expression Profiles ◽  
Abiotic Stress Tolerance ◽  
Functional Characterization ◽  
Moisture Stress ◽  
Biotic And Abiotic Stress ◽  
Macrotyloma Uniflorum ◽  
Regulatory Rnas

Abstract Horsegram (Macrotyloma uniflorum (Lam.) Verdc.) is a drought hardy food and fodder legume of Indo-African continents with diverse germplasm sources demonstrating alternating mechanisms depicting contrasting adaptations to different climatic zones. Tissue specific expression of genes contributes substantially to location specific adaptations. Regulatory networks of such adaptive genes are elucidated for downstream translational research. MicroRNAs are small endogenous regulatory RNAs which alters the gene expression profiles at a particular time and type of tissue. Identification of such small regulatory RNAs in low moisture stress hardy crops can help in cross species transfer and validation confirming stress tolerance ability. This study outlined prediction of conserved miRNAs from transcriptome shotgun assembled sequences and EST sequences of horsegram. We could validate eight out of 15 of the identified miRNAs to demonstrate their role in deficit moisture stress tolerance mechanism of horsegram variety Paiyur1 with their target networks. The putative mumiRs were related to other food legumes indicating the presence of gene regulatory networks. Differential miRNA expression among drought specific tissues indicted the probable energy conservation mechanism. Targets were identified for functional characterization and regulatory network was constructed to find out the probable pathways of post-transcriptional regulation. The functional network revealed mechanism of biotic and abiotic stress tolerance, energy conservation and photoperiod responsiveness.

INFLUENCE OF DIFFERENT SEED PRIMING METHODS FOR IMPROVING SALT STRESS TOLERANCE IN LETTUCE PLANTS

2012 ◽  
Vol 35 (12) ◽  
pp. 1910-1922 ◽  
Author(s):  
Hela Mahmoudi ◽  
Raouia Ben Massoud ◽  
Olfa Baatour ◽  
Imen Tarchoune ◽  
Imen Ben Salah ◽  
...  
Keyword(s):  
Salt Stress ◽  
Stress Tolerance ◽  
Seed Priming ◽  
Salt Stress Tolerance
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