Effect of Phosphorus Fertilizer on Growth, Phosphorus Uptake, Seed Yield, Yield Components, and Phosphorus Use Efficiency of Oilseed Flax

2016 ◽  
Vol 108 (3) ◽  
pp. 1257-1266 ◽  
Author(s):  
Yaping Xie ◽  
Xiaoxia Niu ◽  
Junyi Niu
Agronomy ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 466
Author(s):  
Qibo Tao ◽  
Mengjie Bai ◽  
Cunzhi Jia ◽  
Yunhua Han ◽  
Yanrong Wang

Irrigation and nitrogen (N) are two crucial factors affecting perennial grass seed production. To investigate the effects of irrigation and N rate on seed yield (SY), yield components, and water use efficiency (WUE) of Cleistogenes songorica (Roshevitz) Ohwi, an ecologically significant perennial grass, a four-year (2016–2019) field trial was conducted in an arid region of northwestern China. Two irrigation regimes (I1 treatment: irrigation at tillering stage; I2 treatment: irrigation at tillering, spikelet initiation, and early flowering stages) and four N rates (0, 60, 120, 180 kg ha−1) were arranged. Increasing amounts of both irrigation and N improved SY, evapotranspiration, WUE, and related yield components like fertile tillers m−2 (FTSM) and seeds spikelet−1. Meanwhile, no significant difference was observed between 120 and 180 kg N ha−1 treatments for most variables. The highest SY and WUE was obtained with treatment combination of I2 plus 120 kg N ha−1 with four-year average values of 507.3 kg ha−1 and 1.8 kg ha−1 mm−1, respectively. Path coefficient and contribution analysis indicated that FTSM was the most important yield component for SY, with direct path coefficient and contribution coefficient of 0.626 and 0.592. Overall, we recommend I2 treatment (three irrigations) together with 120 kg N ha−1 to both increase SY and WUE, especially in arid regions. Future agronomic managements and breeding programs for seed should mainly focus on FTSM. This study will enable grass seed producers, plant breeders, and government program directors to more effectively target higher SY of C. songorica.


Author(s):  
SK Datta ◽  
MAR Sarker ◽  
FMJ Uddin

The experiment was carried out to study the effect of variety and level of phosphorus fertilizer on the yield and yield components of lentil at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh during October 2009 to March 2010. Three lentil varieties viz. BINA masur 2, BINA masur 3 and BARI masur 4 and four levels of phosphorus viz. 0 kg P ha-1 (P0), 15 kg P ha-1 (P15), 30 kg P ha-1 (P30) and 45 kg P ha-1 (P45) were used in this experiment. Varieties showed significant influence on the all characters except plant height. The highest seed yield (1165 kg ha-1) was observed in BARI masur 4, and the lowest seed yield (1028 kg ha-1) was found in BINA masur 3. Phosphorus fertilizer had a significant effect on all the plant characters studied except 1000 seed weight. The highest seed yield (1222kg ha-1) was observed in P45 (45 kg P ha-1) treatment and the lowest seed yield (893 kg ha-1) was found in P0 treatment. In case of interaction, effect of cultivar and phosphorus fertilizer doses had a significant effect on all the plant characters studied except seeds pod-1 and 1000-seed weight. The highest seed yield (1317 kg ha-1) was obtained in V3 X P45 treatment, and the lowest seed yield (830 kg ha-1) was observed in V2 X P0 treatment combination. Among the varieties BINA masur 2 and BARI masur 4 were superior to BINA masur 3 in respect of yield performance with 30 kg P ha-1. BARI masur 4 fertilized with 30 kg P ha-1 produced the highest seed yield. Int. J. Agril. Res. Innov. & Tech. 3 (1): 78-82, June, 2013 DOI: http://dx.doi.org/10.3329/ijarit.v3i1.16097


2020 ◽  
Author(s):  
Muraleedhar S Aski ◽  
Neha Rai ◽  
Venkat Praksh Reddy ◽  
Harsh Kumar Dikshit ◽  
Gyan Prakash Mishra ◽  
...  

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.


Agronomy ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 637 ◽  
Author(s):  
Leandro Pereira-Dias ◽  
Daniel Gil-Villar ◽  
Vincente Castell-Zeising ◽  
Ana Quiñones ◽  
Ángeles Calatayud ◽  
...  

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.


2016 ◽  
Vol 47 (2) ◽  
Author(s):  
Abass & Alag

A field study was conducted during the spring and autumn seasons of 2014 at the experimental farm of Field Crop Department, College of  Agriculture (Abo-Ghraib) - University of Baghdad, to study the effect of Irrigation deficiency quantities and concentrations of Proline acid on yield , its components, water consumptive and water use efficiency of sunflower (Helianthus annus L. ) for Luleo hybrid. Randomized Complete Block Design (RCBD) in arrangement of a split-plot with three replications were used. Irrigation treatments, control (depletion  50% of available water) and 60% , 50%  40% of control treatment, were assigned as a main plots. while proline acid concentrations of 0, 30, 60 and 90 mg.L-1 were assigned as a subplots. The results showed that there is no significant differences between the control treatment and 60% of the control for  the period from planting to 50% flowering, number of leaves, relative water content, nitrogen concentration in leaves, fertilization percentage, number of seeds in the head,100 seed weight and seeds yield reaching 3.90, 2.46 t.ha-1  and 3.78 , 2.41 t.ha-1 for spring and autumn seasons respectively. which indicates the possibility of saving 40% of the water consumption which is estimated 1920.00, 2960.00 m3. ha-1. Season-1  for two seasons respectively without any yield reduction. While the percentage of decline in seeds yield for treatments 50% and 40% from the control treatment for spring season were 14.61%  , 19.74% respectively and 21.95 % , 33.33% for autumn season comparing with control. Irrigation treatment 40%, 60% of the control treatments gave the best water use efficiency for both seasons respectively. a concentrations of Proline acid affect significantly most of studied traits. Increasing of Proline to 60mg.L-1 gave the to increase in fertilization percentage was  و70.2081.% 100 seed weight7.12 و7.52 gm, seed yield 3.75, 2.21 t.ha-1 and water use efficiency 0.84 و0.29  kg seed.m-3 water comparing with control for two seasons respectively .The interaction between irrigation and Proline acid showed a significantly effect on all characteristics seeds yield components traits in both seasons. We therefore recommend that in case of limited  irrigation water  by %60 by the need of the full irrigation (50 % depletion of available water) without a significant decrease in product seed yield, in addition to possibility treatment of  sunflower plants with Proline acid with 60 mg .L-1 to improvement capacity of water stress.


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