scholarly journals Effectiveness of the Classification for the Phosphorus Use Efficiency Traits at the Seedling Stage in Lentil

2020 ◽  
Author(s):  
Muraleedhar S Aski ◽  
Neha Rai ◽  
Venkat Praksh Reddy ◽  
Harsh Kumar Dikshit ◽  
Gyan Prakash Mishra ◽  
...  
Keyword(s):  
Phosphorus Uptake ◽  
Morphological Characteristics ◽  
Phosphorus Use Efficiency ◽  
P Efficiency ◽  
Root Characteristics ◽  
Use Efficiency ◽  
Wild Lentil ◽  
Food And Nutritional Security ◽  
The Cost

Abstract Background: Understanding the morphology of the root system in lentils is critical for the identification of root characteristics for breeding cultivars with enhanced phosphorus use efficiency (PUE) to better adapt to poor P environments. PUE and variability in root morphological characteristics at the early vegetative stage were investigated among 40 indigenous and exotic lentil genotypes in a hydroponic phenotyping system.Results: A prerequisite for developing P-efficient crop cultivars is to categorise existing germplasm. In this experiment, 40 lentil genotypes were grown for 24 days under P deficit (3 μm KH2PO4) and P adequate (250 μm KH2PO4) conditions in hydroponics. Lentil genotypes exhibited significant variability for root, biomass, and P efficiency traits. Different techniques have identified various genotypes of lentils based on the efficiency of phosphorus uptake (PUPE) and the efficiency of phosphorus utilization (PUTE). IG 568229 showed the highest PUPE, while the wild ILWL-15 lentil showed the lowest PUPE in both media. The wild lentil ILWL-95 showed maximum PUTE under P adequate medium. The IC 560135, IG 334, IG 560157 and IG 568229 genotypes were found to be highly efficient at both P levels and to be ideal for a large range of P levels without having a drastic impact on biomass output.Conclusions: The primary step for breeding more P-efficient crop plants is the classification of the germplasm. IC 560135 and IC 268238 contrasting lentil lines may be useful for mapping population development, mapping and tagging of gene(s), QTLs for PUE in lentil. These efficient P crops also ensure food and nutritional security, in addition to reducing the cost of cultivation.

scholarly journals Main Root Adaptations in Pepper Germplasm (Capsicum spp.) to Phosphorus Low-Input Conditions

Agronomy ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 637 ◽  
Author(s):  
Leandro Pereira-Dias ◽  
Daniel Gil-Villar ◽  
Vincente Castell-Zeising ◽  
Ana Quiñones ◽  
Ángeles Calatayud ◽  
...  
Keyword(s):  
Fine Roots ◽  
Phosphorus Uptake ◽  
Root Traits ◽  
Average Diameter ◽  
Phosphorus Efficiency ◽  
Phosphorus Use Efficiency ◽  
Low Input ◽  
Wide Range ◽  
Capsicum Spp ◽  
Use Efficiency

Agriculture will face many challenges regarding food security and sustainability. Improving phosphorus use efficiency is of paramount importance to face the needs of a growing population while decreasing the toll on the environment. Pepper (Capsicum spp.) is widely cultivated around the world; hence, any breakthrough in this field would have a major impact in agricultural systems. Herein, the response to phosphorus low-input conditions is reported for 25 pepper accessions regarding phosphorus use efficiency, biomass and root traits. Results suggest a differential response from different plant organs to phosphorus starvation. Roots presented the lowest phosphorus levels, possibly due to mobilizations towards above-ground organs. Accessions showed a wide range of variability regarding efficiency parameters, offering the possibility of selecting materials for different inputs. Accessions bol_144 and fra_DLL showed an interesting phosphorus efficiency ratio under low-input conditions, whereas mex_scm and sp_piq showed high phosphorus uptake efficiency and mex_pas and sp_bola the highest values for phosphorus use efficiency. Phosphorus low-input conditions favored root instead of aerial growth, enabling increases of root total length, proportion of root length dedicated to fine roots and root specific length while decreasing roots’ average diameter. Positive correlation was found between fine roots and phosphorus efficiency parameters, reinforcing the importance of this adaptation to biomass yield under low-input conditions. This work provides relevant first insights into pepper’s response to phosphorus low-input conditions.

scholarly journals Comparison of different selection traits for identification of phosphorus use efficient lines in mungbean

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e12156
Author(s):  
Venkata Ravi Prakash Reddy ◽  
Harsh Kumar Dikshit ◽  
Gyan Prakash Mishra ◽  
Muraleedhar Aski ◽  
Akanksha Singh ◽  
...  
Keyword(s):  
Stress Tolerance ◽  
Dry Mass ◽  
Utilization Efficiency ◽  
Genetic Enhancement ◽  
Soil Conditions ◽  
Phosphorus Use Efficiency ◽  
P Efficiency ◽  
P Deficiency ◽  
Mean Values ◽  
Use Efficiency

Phosphorus (P) is one of the major constraints for crop growth and development, owing to low availability and least mobility in many tropical soil conditions. Categorization of existing germplasm under P deficient conditions is a prerequisite for the selection and development of P efficient genotypes in the mungbean. In the present investigation, 36 diverse genotypes were categorized for phosphorus use efficiency traits using four different techniques for identification of phosphorus use efficient mungbean genotypes. The studied genotypes were categorized for P efficiency based on efficiency, responsiveness, and stress tolerance score of genotypes under normal and low P conditions. The mean values of traits, root dry mass, root to shoot ratio, and P utilization efficiency are significantly higher under low P conditions indicating the high responsiveness of traits to P deficiency. The presence of significant interaction between genotypes and P treatment indicates the evaluated genotypes were significantly affected by P treatment for studied traits. The total P uptake showed significant and positive correlations with root dry mass, shoot dry mass, total dry mass,and P concentration under both P regimes. Out of the four techniques used for the categorization of genotypes for P efficiency, three techniques revealed that the genotype PUSA 1333, followed by Pusa Vishal, PUSA 1031, and Pusa Ratna is efficient. The categorization based on stress tolerance score is the finest way to study variation and for the selection of contrasting genotypes for P efficiency. The identified P efficient genotypes would be valuable resources for genetic enhancement of P use efficiency in mungbean breeding.

scholarly journals Polymer-Paraburkholderia phytofirmans PsJN Coated Diammonium Phosphate Enhanced Microbial Survival, Phosphorous Use Efficiency, and Production of Wheat

Agronomy ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1344 ◽  
Author(s):  
Muhammad Zahir Aziz ◽  
Muhammad Yaseen ◽  
Muhammad Naveed ◽  
Xiukang Wang ◽  
Kaniz Fatima ◽  
...  
Keyword(s):  
Carbon Source ◽  
Grain Yield ◽  
Field Experiments ◽  
Calcareous Soils ◽  
Ammonium Phosphate ◽  
Phosphorus Use Efficiency ◽  
P Efficiency ◽  
Olsen P ◽  
Microbial Survival ◽  
Use Efficiency

Low bioavailability of phosphorus (P) in alkaline/calcareous soils leads to low yields due to its precipitation/fixation with calcium (Ca). An effective method to enhance phosphorus use efficiency (PUE) and its availability to plants is the application of alginate bioaugmented coated di-ammonium phosphate (DAP). In this study, the pre-isolated P solubilizing Paraburkholderia phytofirmans (PsJN) coated with different concentrations of polymer (alginate) on DAP with and without carbon source was tested in incubation, pot, and field experiments to investigate microbial survival, Olsen P release, and its availability to plants. Results indicated that the maximum recovery of PsJN loaded on alginate at 30 days incubation with and without carbon source was 199 × 1010 and 82 × 106 CFU mL−1 respectively. Application of alginate bioaugmented DAP released 962 mg kg−1 Olsen P after 60 days of incubation compared to 280 and 370 mg kg−1 Olsen P released by uncoated and simple alginate coated DAP, respectively. Results from pot trial revealed that application of 100% alginate bioaugmented DAP increased 26% plant height, 31% photosynthetic rate, 55% grain yield, and 6 × 105 CFU g−1 root bacterial population, compared to uncoated DAP. Field trial results indicated that 22% grain yield, 14% straw yield, and 44% agronomy P efficiency were increased by applying 100% alginate bioaugmented DAP compared to uncoated DAP. This new approach resulted in controlled release of P from coated DAP that not only reduced phosphorus fixation but also enhanced the bioavailability of P to plants.

scholarly journals Yield and phosphorus use efficiency of carrot cultivars

2021 ◽  
Vol 37 ◽  
pp. e37085
Author(s):  
Priscila Maylana Modesto de Jesus ◽  
Leilson Costa Grangeiro ◽  
Valdívia de Fatima Lima de Sousa ◽  
Gerlani Alves da Silva ◽  
Luiz Ricardo Rebouças da Silva ◽  
...  
Keyword(s):  
Experimental Design ◽  
Plant Height ◽  
Plant Development ◽  
Dry Matter ◽  
Phosphorus Use Efficiency ◽  
Marketable Yield ◽  
P Content ◽  
Phosphate Fertilization ◽  
Use Efficiency

Phosphate fertilization is indispensable for carrot cultivation, as it contributes to plant development, formation of marketable roots and higher yields. In this context, the objective of this study was to evaluate the production and nutritional efficiency of carrot cultivars under phosphate fertilization. The experiments were carried out from July to November 2016 and from June to October 2017, at the Rafael Fernandes experimental farm, District of Alagoinha, Mossoró, RN, Brazil. The experimental design was in randomized blocks, in a 4×4 factorial scheme with 4 replicates. The treatments consisted of the combination of carrot cultivars (Brasília, Planalto, Suprema and Nativa) with phosphorus (P) doses (0, 90, 180 and 270 kg ha-1 P2O5). The characteristics analyzed were: P content in the diagnostic leaf, plant dry matter, plant height, marketable and total yields, and the classification of cultivars for efficiency and response to phosphate fertilization. The increments promoted by phosphate fertilization were 64% in plant height, 444% in dry matter and 284% in marketable yield. The maximum marketable yield was obtained with doses from 186.8 to 243.5 kg ha-1, depending on the cultivar. The Native cultivar was classified as more efficient in the use of P.

Effects of Cover Crops and Phosphorus Sources on Maize Yield, Phosphorus Uptake, and Phosphorus Use Efficiency

2017 ◽  
Vol 109 (3) ◽  
pp. 1039-1047 ◽  
Author(s):  
Paulo Sergio Pavinato ◽  
Marcos Rodrigues ◽  
Amin Soltangheisi ◽  
Laércio Ricardo Sartor ◽  
Paul John Anthony Withers
Keyword(s):  
Cover Crops ◽  
Phosphorus Uptake ◽  
Maize Yield ◽  
Phosphorus Use Efficiency ◽  
Phosphorus Sources ◽  
Use Efficiency

scholarly journals Genetic control of traits related to phosphorus use efficiency in tropical maize

2015 ◽  
Vol 15 (2) ◽  
pp. 59-65 ◽  
Author(s):  
Flávia Ferreira Mendes ◽  
Lauro José Moreira Guimarães ◽  
Cláudia Teixeira Guimarães ◽  
João Cândido Souza ◽  
Paulo Evaristo Oliveira Guimarães ◽  
...  
Keyword(s):  
Genetic Control ◽  
Agronomic Traits ◽  
P Availability ◽  
Phosphorus Use Efficiency ◽  
P Efficiency ◽  
Breeding Programs ◽  
P Use Efficiency ◽  
Selection Strategies ◽  
Low Phosphorus ◽  
Use Efficiency

Knowing the inheritance of traits is essential to establish selection strategies in breeding programs. The aim of this study was to determine the genetic control of traits related to the phosphorus use efficiency in maize. A total of 280 progenies were developed according to design III, which were evaluated in the field under high and low phosphorus (P) availability. The genetic variance components were estimated for the agronomic traits and indices that define P use efficiency. The results indicated that the additive and dominance effects were important in explaining the genetic variability for the flowering time, grain yield and P efficiency indices. However, dominance effects prevailed, indicating that breeding efforts should be made to develop hybrids exploiting the heterosis for traits related to P use efficiency.

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