pot experiment
Recently Published Documents


TOTAL DOCUMENTS

415
(FIVE YEARS 98)

H-INDEX

25
(FIVE YEARS 3)

2022 ◽  
Author(s):  
Irfan Ahmad ◽  
Muhammad Haroon U Rashid ◽  
Shahid Nawaz ◽  
Muhammad Asif ◽  
Taimoor Hassan Farooq ◽  
...  

<i>Bombax ceiba</i> is an important agroforestry tree species widely distributed throughout the world. It has been extensively grown and planted for eras in hot and dry regions and high humidity zones of southern Asia. The main objective of this research was to evaluate the growth response of <i>B. ceiba</i> in response to different compost treatments. Different morphological traits (plant height, stem height, root length) and biomass (shoot fresh weight, shoot dry weight, root fresh weight, root dry weight and root/shoot ratio) were measured. Two experiments (pot experiment = seedlings) and (field experiment = saplings) were conducted simultaneously. Different compost treatments: (T<sub>0</sub>) = (Compost 0% + Soil 0%), (T<sub>1</sub>) = (Compost 25% + Soil 75%), (T<sub>2</sub>) = (Compost 50% + Soil 50%), (T<sub>3</sub>) = (Compost 75% + Soil 25%), (T<sub>4</sub>) = (Compost 100% + Soil 0%) were applied in the growing media. Results demonstrated that plant growth increased with the increment in compost application. In the pot experiment, <i>B. ceiba</i> exhibited its better growth under 75% of compost application, whereas in the field experiment, 100% compost was helpful for the best production of <i>B. ceiba</i>. Overall, positive effects of compost were observed for the growth of <i>B. ceiba</i>. The plant growth was increased greatly in response to the better content of organic fertilizer, and it was determined that compost enhances soil fertility. It should be implemented as organic fertilizer in agroforestry operations for optimizing plant growth and yield.


2021 ◽  
Vol 14 (1) ◽  
pp. 429
Author(s):  
Rongrong Ying ◽  
Bing Xia ◽  
Xiaowen Zeng ◽  
Rongliang Qiu ◽  
Yetao Tang ◽  
...  

Heavy metal pollution in farmland threatens human life. It is not clear whether crops can adsorb heavy metals. In this study, the cadmium accumulation and tolerance in Chinese cabbage Brassica pekinensis (cv. Xiaoza-56) and the known Cd-accumulator Brassica juncea in hydroponics and pot experiment were investigated. Furthermore, we evaluated their potential on the phytoextraction of Cd-contaminated soil. The hydroponics with 1–50 μM Cd concentrations showed that both B. juncea and B. pekinensis had high Cd accumulation and tolerance with translocation factor closed to 1 at Cd levels < 25 μM. The pot study conducted with 5 to 100 mg Cd kg−1 soil indicated that B. juncea showed less tolerance and accumulation to Cd than B. pekinensis, especially at higher Cd levels. The bioconcentration factor was much higher than 1 in both B. juncea and B. pekinensis grown in <40 mg Cd kg−1 soil without showing biomass reduction. In the model evaluation, the ability of B. juncea and B. pekinensis to reduce the initial soil Cd concentration of 20 and 5 mg kg−1 to specific targets with a lower or higher biomass of 4 or 20 t ha−1, respectively. The above results indicate that B. juncea and B. pekinensis (cv. Xiaoza-56), which the latter is a better candidate for Cd phytoextraction in moderated Cd-contaminated soil. The results provide a reference for Cd pollution control.


2021 ◽  
Vol 30 (2) ◽  
pp. 125
Author(s):  
Zulfa Rahmadita Nur Azizah ◽  
Etik Wukir Tini ◽  
Joko Maryanto

<p>Perbanyakan tanaman secara vegetatif menggunakan teknik sambung pucuk dapat digunakan sebagai alternatif untuk menghasilkan benih yang bermutu. Namun, masalah yang sering terjadi pada sambung pucuk adalah kegagalan sambung. Penelitian ini bertujuan untuk mendapatkan jenis zat pengatur tumbuh, jumlah daun entres, dan kombinasi perlakuan yang memberikan hasil terbaik terhadap keberhasilan sambung pucuk durian. Penelitian dilaksanakan pada bulan November 2018 sampai Januari 2019 di Desa Alasmalang, Kemranjen, Banyumas. Percobaan yang dilakukan merupakan percobaan pot dengan rancangan faktorial. Perlakuan pada penelitian ini adalah kombinasi antara zat pengatur tumbuh (kontrol, ekstrak tauge, air kelapa, IBA, dan BAP) dan jumlah daun entres (2, 4, dan 6 helai). Rancangan penelitian yang digunakan yaitu Rancangan Acak Kelompok Lengkap dengan 15 perlakuan dan diulang tiga kali. Hasil penelitian menunjukkan perlakuan ZPT IBA dan BAP memberikan pengaruh nyata terhadap jumlah tunas sambung pucuk tanaman durian, yaitu sebesar 2,711 dan 2,822 dan perlakuan jumlah daun entres dua helai memberikan pengaruh yang nyata terhadap waktu pecah tunas, jumlah tunas, dan pertambahan jumlah daun sambung pucuk tanaman durian, yaitu sebesar 2,3 helai.</p><p><strong>Keywords</strong></p><p>Sambung pucuk durian; Daun entres; Zat pengatur tumbuh</p><p><strong>Abstract</strong></p><p>Vegetative propagation of plants using shoot grafting can be used as an alternative to produce quality seeds. The problem that often occours in top grafting is the failure to graft. This experiment aims to obtain the type of plant growth regulator, the number of scion’s leaves, and the combination that give the best results for growth of top grafting in durian. The research was conducted in November 2018 to January 2019 in Alasmalang Village, Kemranjen, Banyumas. The experiment was a pot experiment with a factorial design. The treatment was a combination of growth regulator (control, bean extract, coconut water, IBA, and BAP) and number of scion leaves (2, 4, and 6 strands). The research design used was a RCBD with 15 treatments and three replications. The results showed that the treatment of PGR IBA and BAP had a significant effect on the number of grafted shoots of durian plants, namely 2.711 and 2.822 and the treatment of the number of leaves of two leaves had a significant effect on shoot break time, the number of shoots and the increase in the number of grafted leaves of durian plants, namely amounting to 2.3 strands.</p>


2021 ◽  
Vol 12 ◽  
Author(s):  
Yunfei Mao ◽  
Yijun Yin ◽  
Xueli Cui ◽  
Haiyan Wang ◽  
Xiafei Su ◽  
...  

The cultivation of resistant rootstocks is one of the more effective ways to mitigate apple replant disease (ARD). We performed an ion current test, a pot experiment, and a pathogen infection test on the apple rootstocks 12-2 (self-named), T337, and M26. The ion current test showed that exposure to ARD soil extract for 30 min had a significant effect on K+ ion currents at the meristem, elongation, and mature zones of the M26 rhizoplane and on Ca2+ currents in the meristem and elongation zones. ARD also had a significant effect on Ca2+ currents in the meristem, elongation, and mature zones of the T337 rhizoplane. Exposure to ARD soil extract for 5 min had a significant effect on K+ currents in the meristem, elongation, and mature zones of 12-2 and on the Ca2+ currents in the elongation and mature zones. Compared to a 5-min exposure, a 30-min exposure to ARD extract had a less pronounced effect on K+ and Ca2+ currents in the 12-2 rhizoplane. The pot experiment showed that ARD soil had no significant effect on any root architectural or physiological parameters of 12-2. By contrast, ARD soil significantly reduced some root growth indices and the dry and fresh weights of T337 and M26 compared with controls on sterilized soil. ARD also had a significant effect on root metabolic activity, root antioxidant enzyme activity (except superoxide dismutase for T337), and malondialdehyde content of T337 and M26. Pathogen infection tests showed that Fusarium proliferatum MR5 significantly affected the root structure and reduced the root metabolic activity of T337 and M26. It also reduced their root antioxidant enzyme activities (except catalase for T337) and significantly increased the root malondialdehyde content, reactive oxygen levels, and proline and soluble sugar contents. By contrast, MR5 had no such effects on 12-2. Based on these results, 12-2 has the potential to serve as an important ARD-resistant rootstock.


Author(s):  
Lynda Kelvin Asogwa ◽  
Frank C. Ogbo

Aims: To isolate Plant Growth Promoting Bacillus strain from maize roots, to evaluate its biocontrol potentials and to characterize the isolate using16S rRNA sequencing. Place and Duration of Study: Department of Applied Microbiology and Brewing, Nnamdi Azikiwe University, Awka, between February 2019 and March 2020. Methodology: The isolation of Plant Growth Promoting Rhizobacteria (PGPR) from maize roots was done using Pikovskaya (PVK) agar. Quantitative determination of phosphate was carried out using PVK broth. Evaluations of other plant growth promoting properties were carried out such as IAA, etc. Fusarium and Enterobacter plant pathogens were isolated from diseased maize plants. The in vitro antagonism effects of the PGPR isolates against the pathogens were analyzed using the dual culture plate technique. The pot experiment was carried out in a completely randomized design. Plant characteristics such as plant height, shoot  and root weight, chlorophyll content, as well as disease assessment were recorded accordingly. The organisms were identified using phenotypic and molecular methods. Results: Seven PGPR bacteria were isolated from maize (Zea mays) roots using PVK agar. Aneurinibacillus migulanus gave the highest solubilization index of 4.21 while isolate IS48 gave the lowest solubilization index of 1.47. A. migulanus produced IAA, ammonia and cellulase enzyme but no hydrogen cyanide. The organism showed antagonism activity against the two tested phytopathogens. In the pot experiment, A. migulanus treated plants showed a statistically insignificant difference in maize plant height at P=0.05 but gave significant increases in shoot and root wet weights. The organism offered 83.33% and 71.43% protection against Enterobacter and Fusarium pathogens respectively in the pot experiment. Conclusion: A. migulanus solubilized phosphate in addition to other plant growth promoting  properties. It showed biocontrol potentials both in vitro and in vivo and thus can be used as substitute for synthetic agrochemicals.


2021 ◽  
Vol 9 (3) ◽  
pp. 110-113

A pot experiment was conducted to investigate the effect of priming with the extract of plant Calotropis procera on seed germination of Sorghum bicolor. The seeds of Sorghum bicolor were primed with different concentrations of Calotropis procera leaf extract and milky sap exudate for five days at different time intervals. In total, there were five groups of days and nine seed priming treatments. The result showed that maximum seeds were germinated on day 4 in all treatments, but it was not significantly different from day 2, 3, and day 5. Whereas the highest germination of seeds was noted in two treatments, 24 hours priming with 100% boiled leaves extract (T3) and 24 hours priming with 100% milky exudate (T4), irrespective of priming days, except one day. These results showed that both milky exudate and boiled leaf extract have a positive effect on seed germination of Sorghum bicolor; therefore, in the future, both types of extracts of Calotropis procera should be considered important for priming the seeds of different plants to improve seed germination.


2021 ◽  
Vol 50 (3) ◽  
pp. 709-712
Author(s):  
Abdallah H Almohithef ◽  
Fahad A Al yahya ◽  
Ahmad S Al hazmi ◽  
Ahmed AM Dawabah ◽  
Hamzeh A Lafi

A pot experiment was conducted to compare the efficacy of some products i.e., Stanes Bio Nematon®, Soft Guard®, Paecilomyces lilacinus, Trichoderma longibranchiatum, camel and goat manures against Meloidogyne javanica on tomato under greenhouse conditions. Based on nematode reproduction, indices of galls and egg masses, the six materials were grouped into four classes from the relatively highest efficacy of control (goat manure) to the relatively low efficacy of control (P. lilacinus). Bangladesh J. Bot. 50(3): 709-712, 2021 (September)


Author(s):  
Muhammad Saleem ◽  
Fahim Nawaz ◽  
Muhammad Baqir Hussain ◽  
Rao Muhammad Ikram

AbstractMitigation strategies based on plant–microbe interactions to increase the performance of plants under water-deficit conditions are well documented. However, little is known about a suitable consortium of bacterial inoculants and underlying physiological and enzymatic events to improve drought tolerance in maize. We performed laboratory and pot experiments to understand the synergistic interactions among plant growth-promoting bacteria to alleviate the drought-induced damages in maize. Initially, ten bacterial strains were evaluated for their osmotic stress tolerance capacity by growing them in a media containing 0, 10, 20, and 30% polyethylene glycol (PEG-6000). Also, the seeds of a drought tolerant (NK-6654) and sensitive (SD-626) maize cultivar were inoculated with these bacterial strains in the first pot experiment to determine their effects on the growth and physiological processes. Later, in the second pot experiment, the best performing inoculants were selected to study the individual and synergistic effects of bacterial inoculation to confer drought tolerance in maize. Our findings showed that the inoculation with tolerant strains resulted in higher photosynthetic activity (25–39%), maintenance of leaf water status (14–18%) and pigments (27–32%), and stimulation of antioxidant machinery (28–38%) than no inoculation in water-stressed maize seedlings. Moreover, the treatment with bacteria consortia further stimulated the drought protective mechanisms and resulted in higher efficiency of photosynthetic (47–61%) and antioxidant systems (42–62%) than the individual inoculants under water-deficit conditions. We conclude that the inoculation with microbial consortia regulates water uptake, photosynthetic performance, and stress metabolites to minimize drought-induced damages in maize.


Sign in / Sign up

Export Citation Format

Share Document