Impacts of Elevated Ozone and Ozone Protectants on Plant Growth, Nutrients, Biochemical and Yield Properties of Turnip (Brassica Rapa L.)

2022 ◽  
Author(s):  
Boomiraj K ◽  
Sethupathi Nedumaran ◽  
Sudhakaran Mani ◽  
Jayabala Krishnan ◽  
Sritharan Natarajan ◽  
...  
Keyword(s):  
Plant Growth ◽  
Brassica Rapa ◽  
Elevated Ozone

scholarly journals PENGARUH DOSIS PUPUK NPK MAJEMUK DAN PGPR (PLANT GROWTH PROMOTING RHIZOBACTERIA) TERHADAP BOBOT BASAH DAN KADAR KLOROFIL DAUN TANAMAN PAKCOY (Brassica rapa L.)

2017 ◽  
Vol 6 (2) ◽  
Author(s):  
Rosyida Rosyida ◽  
Ary Susatyo Nugroho
Keyword(s):  
Plant Growth ◽  
Brassica Rapa ◽  
Plant Growth Promoting Rhizobacteria ◽  
Plant Growth Promoting ◽  
Growth Promoting

Plant Growth Promoting Rhizobacteria (PGPR) ialah kelompok mikroorganisme tanah yang menguntungkan bagi kesuburan tanah dan tanaman. Mikroorganisme yang hidup di daerah perakaran tersebut memiliki 3 peran utama bagi tanaman yaitu : 1) sebagai biofertilizer, 2) sebagai biostimulan, dan 3) sebagai bioprotektan. Penelitian ini bertujuan untuk memperlihatkan efek suplementasi PGPR dalam dosis pemberian pupuk majemuk NPK terhadap bobot basah dan kadar klorofil daun pada tanaman pakchoy (Brassica rapa L.). Perlakuan pada penelitian ini meliputi 5 taraf perlakuan, yaitu: variasi kombinasi dosis pupuk majemuk NPK dan PGPR: NPK 100% (A0P0), NPK 75% + PGPR 25% (A1P1), NPK 50% + PGPR 50% (A2P2), NPK 25% + PGPR 75% (A3P3), PGPR 100% (A4P4). Masing – masing perlakuan diulang 5 kali. Desain percobaan adalah Rancangan Acak Lengkap (RAL), hasil percobaan dianalisis dengan ANOVA (P < 0,05), dilanjutkan dengan uji Duncan. Berdasarkan hasil percobaan, disimpulkan bahwa bahwa ada pengaruh yang nyata pada suplementasi PGPR dalam dosis pupuk majemuk NPK pada parameter bobot basah dan kadar klorofil daun tanaman pakchoy. Bobot basah tertinggi ditunjukkan pada tanaman pakchoy yang diberi perlakuan NPK 25% + PGPR 75% (A3P3), sedangkan pada tanaman yang diberi perlakuan NPK 75% + PGPR 25% (A1P1) mampu mengakumulasi kadar klorofil tertinggi diantara daun tanaman lainnya. Kata Kunci: Plant Growth Promoting Rhizobacteria (PGPR), Pupuk, NPK, Pakchoy

Impacts of Elevated Ozone and Ozone protectanton Plant Growth, Nutrients, Biochemical and Yield properties of Turnip (Brassica rapa)

2021 ◽  
Author(s):  
Boomiraj Kovilpillai ◽  
Sethupathi Nedumaran ◽  
Sudhakaran Mani ◽  
Jayabalakrishnan Raja Mani ◽  
Sritharan Natarajan ◽  
...  
Keyword(s):  
Plant Growth ◽  
Block Design ◽  
Ozone Exposure ◽  
Research Station ◽  
Growth Physiology ◽  
Elevated Ozone ◽  
Randomized Block Design ◽  
Size Tuber ◽  
The Impact ◽  
Total Potassium

Abstract An experiment was conducted at woodhouse farm, Horticultural Research Station, Ooty, in the period of October 2017 to March 2018, to quantify the impact of elevated ozone and ozone protectants spray on plant growth, nutrients, biochemical and yield properties of turnip crop in a factorial completely randomized block design replicated thrice. The elevated ozone exposure significantly reduces the plant height, tuber size, tuber weight, Chlorophyll ‘a’, Chlorophyll ‘b’, Total chlorophyll, total nitrogen, total potassium, total Manganese, Iron, Zinc, Copper inturnip. Meanwhile, the elevated ozone exposure significantly increased the total phosphorous, catalase and peroxide activity inturnip. However, ozone protectants played a major role to nullify the tropospheric ozoneeffect on growth, physiology, development and yield of turnip and among them panchagavya performed well followed by neem oil and ascorbicacid.

scholarly journals Legacy effects of elevated ozone on soil biota and plant growth

2015 ◽  
Vol 91 ◽  
pp. 50-57 ◽  
Author(s):  
Qi Li ◽  
Yue Yang ◽  
Xuelian Bao ◽  
Fang Liu ◽  
Wenju Liang ◽  
...  
Keyword(s):  
Plant Growth ◽  
Soil Biota ◽  
Legacy Effects ◽  
Elevated Ozone

INFLUENCE OF BORON NUTRITION ON GLUCOSINOLATES AND REDUCING SUGARS OF TURNIP

1982 ◽  
Vol 62 (4) ◽  
pp. 1037-1042 ◽  
Author(s):  
HAK-YOON JU ◽  
CALVIN CHONG ◽  
BERNARD B. BIBLE
Keyword(s):  
Plant Growth ◽  
Brassica Rapa ◽  
Reducing Sugars ◽  
Boron Deficiency ◽  
Apparent Effect ◽  
Thiocyanate Ion ◽  
Vigorous Growth ◽  
High Yields ◽  
Hydroponically Grown

The influence of six boron treatments (0, 0.1, 0.5, 2.5, 5.0 and 10.0 ppm) on glucosinolates and reducing sugars was studied in tops and roots of hydroponically grown Snow Ball turnip (Brassica rapa L.). The glucosinolates were determined by quantifying their hydrolytic products, 5-vinyl-oxazolidine-2-thione (goitrin), volatile isothiocyanates, and thiocyanate ion. While growth of plants receiving no boron (0 ppm) was drastically impaired, that of plants receiving 0.1–5.0 ppm boron was equally vigorous; growth was slightly inhibited with 10.0 ppm boron. Mild boron deficiency was manifested as brown-heart in roots of fully-sized turnips from the 0.1 ppm boron treatment although there was no apparent effect on external root appearance or on foliage and plant growth. In roots of boron-deficient turnips, elevated yields of goitrin were found, accompanied by relatively high yields of thiocyanate ion and low contents of reducing sugars.

scholarly journals 274 Effects of Supplemental Calcium on Plant Growth, Ion Accumulation in Roots and Transports to Shoots of Brassica rapa L.

HortScience ◽  
1999 ◽  
Vol 34 (3) ◽  
pp. 489D-489
Author(s):  
T.R. Kwon ◽  
P.J.C. Harris ◽  
W.F. Bourne
Keyword(s):  
Plant Growth ◽  
Growth Inhibition ◽  
Brassica Rapa ◽  
Salinity Tolerance ◽  
Ion Accumulation ◽  
Growth Reduction ◽  
Hydroponic System ◽  
Nacl Salinity ◽  
Ca Addition ◽  
Supplemental Calcium

The effects of supplemental Ca on salinity tolerance were tested using a Brassica rapa L. landrace, `Sani', which is salt-sensitive. Plants were grown in a continuous aerated hydroponic system with 0.25-strength Hoagland solutions containing 125 mM NaCl plus 0, 2.5, 5.0 or 10 mM CaCl 2. The effects of Ca treatment were significant in reducing Na accumulation in roots, Na+ transport from roots to shoots and in enhancing K and Ca accumulation and transport. The Ca addition also enhanced the selectivities of both K and Ca over Na of accumulation at roots and of transport to shoots. However, supplemental Ca did not alleviate the growth reduction caused by the NaCl salinity. These results suggest that the growth inhibition of salt-treated B. rapa `Sani' is mainly caused by factors other than Na, K, and Ca contents in plants.

scholarly journals PENGARUH PEMBERIAN PLANT GROWTH PROMOTING RHIZOBACTERIA (PGPR) AKAR BAMBU PADA PERTUMBUHAN DAN PRODUKSI TANAMAN PAKCOY (Brassica rapa L.)

2021 ◽  
Vol 17 (1) ◽  
pp. 19-24
Author(s):  
Rachmat Rachmat ◽  
Sendi Bororing ◽  
Ramli Ramli ◽  
Abd. Azis H.
Keyword(s):  
Plant Growth ◽  
Brassica Rapa ◽  
Plant Growth Promoting Rhizobacteria ◽  
Plant Growth Promoting ◽  
Growth Promoting

Penelitian ini bertujuan untuk mengetahui pengaruh pemberian plant growth promoting rhizobacteria (PGPR) akar bambu pada pertumbuhan dan produksi tanaman pakcoy (Brassica rapa L.). Penelitian ini dilaksanakan dengan menggunakan metode yang digunakan dalam kajian ini yakni Rancangan Acak Kelompok (RAK) yang terdiri dari 4 perlakuan dan 3 ulangan, sehingga terdapat 12 plot. Dalam pelaksanaan kajian 1 plot terdapat  25 tanaman total tanaman untuk keseluruhan adalah 300 tanaman. Pengamatan dilakukan untuk memperoleh data yang akan dianalisis. Pengambilan data dilakukan 1 minggu setelah tanaman diberikan PGPR akar bambu dengan cara mengukur pertumbuhan tanaman dengan menggunakan alat ukur berupa mistar. Pengambilan data dilakukan pada saat tanaman berumur 7, 14, 21, dan 28 (HST), dilakukan sesuai dengan parameter yang diteliti, yaitu tinggi tanaman, jumlah daun, dan berat basah. rata-rata tinggi tanaman pakcoy mengalami peningkatan pada umur 7, 14, 21 dan 28 hari setelah tanam. rata-rata jumlah daun pakcoy yang diamati mengalami peningkatan pada umur 7, 14, 21 dan, 28 hari setelah tanam. rata-rata berat basah tanaman pakcoy umur 45 hari setelah tanam tidak mengalami perubahan.

scholarly journals Genome wide survey, evolution and expression analysis of PHD finger genes reveal their diverse roles during the development and abiotic stress responses in Brassica rapa L.

BMC Genomics ◽  
2019 ◽  
Vol 20 (1) ◽  
Author(s):  
Intikhab Alam ◽  
Cui-Cui Liu ◽  
Hong-Liu Ge ◽  
Khadija Batool ◽  
Yan-Qing Yang ◽  
...  
Keyword(s):  
Abiotic Stress ◽  
Plant Growth ◽  
Brassica Rapa ◽  
Expression Analysis ◽  
Stress Responses ◽  
Growth And Development ◽  
Gene Families ◽  
Plant Growth And Development ◽  
Genome Database ◽  
Phd Finger

Abstract Background Plant homeodomain (PHD) finger proteins are widely present in all eukaryotes and play important roles in chromatin remodeling and transcriptional regulation. The PHD finger can specifically bind a number of histone modifications as an “epigenome reader”, and mediate the activation or repression of underlying genes. Many PHD finger genes have been characterized in animals, but only few studies were conducted on plant PHD finger genes to this day. Brassica rapa (AA, 2n = 20) is an economically important vegetal, oilseed and fodder crop, and also a good model crop for functional and evolutionary studies of important gene families among Brassica species due to its close relationship to Arabidopsis thaliana. Results We identified a total of 145 putative PHD finger proteins containing 233 PHD domains from the current version of B. rapa genome database. Gene ontology analysis showed that 67.7% of them were predicted to be located in nucleus, and 91.3% were predicted to be involved in protein binding activity. Phylogenetic, gene structure, and additional domain analyses clustered them into different groups and subgroups, reflecting their diverse functional roles during plant growth and development. Chromosomal location analysis showed that they were unevenly distributed on the 10 B. rapa chromosomes. Expression analysis from RNA-Seq data showed that 55.7% of them were constitutively expressed in all the tested tissues or organs with relatively higher expression levels reflecting their important housekeeping roles in plant growth and development, while several other members were identified as preferentially expressed in specific tissues or organs. Expression analysis of a subset of 18 B. rapa PHD finger genes under drought and salt stresses showed that all these tested members were responsive to the two abiotic stress treatments. Conclusions Our results reveal that the PHD finger genes play diverse roles in plant growth and development, and can serve as a source of candidate genes for genetic engineering and improvement of Brassica crops against abiotic stresses. This study provides valuable information and lays the foundation for further functional determination of PHD finger genes across the Brassica species.

scholarly journals Influence of Substrate and Supplementary LED lighting on Vertical Farming of Basil (Ocimum basilicum L.) and Pak Choi (Brassica rapa var. chinensis)

2021 ◽  
pp. 42-52
Author(s):  
N. K. G. K. R. Manawasinghe ◽  
S. H. Weerasekara ◽  
C. S. L. M. Karunaratne ◽  
W. A. P. Weerakkody ◽  
B. Kulapala
Keyword(s):  
Plant Growth ◽  
Brassica Rapa ◽  
Ocimum Basilicum ◽  
Growth And Yield ◽  
Control Treatment ◽  
Climate Control ◽  
Nitrate Accumulation ◽  
Full Spectrum ◽  
Leaf Quality ◽  
Pak Choi

Application of “plant factory” concept in protected culture is gaining momentum due to its technological and economic merits in many countries. This research examined the plant growth and yield of vertically grown pak choi (Brassica rapa var. chinensis) (in nutrient film technique (NFT) culture) under supplementary lighting with two different combinations of blue to red color LEDs (1:9 and 1:2 ratios) in comparison with horticulture grade and non-horticulture grade (recommended for general use) white (full spectrum) LED while keeping sunlight as the control treatment. Meanwhile NFT culture was compared to plant growth, yield and nitrate accumulation of basil (Ocimum basilicum L.) in comparison with conventional soil, culture and compost mixed coco-peat substrate in a replicated trial, conducted under greenhouse conditions with intensive micro climate control. A significantly high vegetative growth and total to yield could be found in the NFT grown basil. The nitrate accumulation in basil leaves was well below the maximum permissible limit (MPL), set-fourth by the recommendations of the European Health Commission. Meanwhile, the highest overall leaf quality of pak choi was achieved by the normal LEDs. Horticulture graded to LED maintained fairly high chlorophyll a and b contents contributing to its characteristic leaf color.

Effect of charcoal-blended compost on plant growth of Brassica rapa var. peruviridis for reduction of nitrogen fertilizer use

2016 ◽  
pp. 257-262
Author(s):  
K. Matsumoto ◽  
S. Sato ◽  
H. Sudo ◽  
T. Fujita ◽  
M.A. Sánchez-Monedero ◽  
...  
Keyword(s):  
Plant Growth ◽  
Brassica Rapa ◽  
Nitrogen Fertilizer ◽  
Fertilizer Use
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