The effectiveness of endo-rhizo bacterial isolated from areca nut rizosphere (Areca cathecu L.) in breaking dormancy and improvement of seed vigor

The evaluation of seed priming methods on the seed and seedling performance of soursop was conducted January 9 to April 3, 2019 in San Nicolas, Ilocos Norte, Philippines. The study was conducted to investigate the effect of seed priming methods capable of breaking dormancy; improve germination rate; determine the seed vigor of soursop; and identify the best seed priming method that provide better seedling performance. The experimental treatments (unprimed and three priming methods, hydropriming, halopriming and hormonal priming) were laid out in Completely Randomized Design with three replications. A total of 20 polyethylene bags were used per treatment per replication with one seed sown in every bag. Alternative way to improve seed and seedling performance is the use of these seed priming methods. The seed and seedling performance of soursop were significantly affected by priming methods. Primed seeds had higher percentage germination rate (PGR) than unprimed seeds. But numerically, the highest PGR was hydropriming. Hormonal priming produced significantly taller seedlings at 10 and 40 days after emergence (DAE) than unprimed seeds and more leaves per seedling at 30 to 50 DAE. Hormonal, hydropriming and halopriming produced significantly higher fresh weight of seedlings than unprimed seeds.

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Maturação, temperatura e quebra de dormência na germinação de sementes de sempre-vivas

Ornamental Horticulture ◽

10.14295/oh.v22i2.875 ◽

2016 ◽

Vol 22 (2) ◽

pp. 186

Author(s):

Andréa Santos Oliveira ◽

Maria Laene Moreira Carvalho ◽

Cláudio das Neves Vieira Bárbara ◽

Tanismare Tatiana Almeida ◽

Marcela Carlota Nery

Keyword(s):

Seed Coat ◽

Seed Quality ◽

Coat Color ◽

Seed Vigor ◽

Seed Coat Color ◽

Dormancy Breaking ◽

C Elegans ◽

Breaking Dormancy ◽

Randomized Experimental Design ◽

Alternating Temperature

Given the importance of “everlasting” plants for their ornamental value and vulnerability to extractive practices, studies to ensure the propagation of the species are indispensable. The aim of this study was to assess whether there is an association between seed coat color and the quality of everlasting seeds, in the presence or absence of dormancy. Four species (Comanthera elegans, C. nitida, C. bisculata, and Comanthera sp.) were separated with respect to seed coat color and underwent germination first count, germination, and germination speed index testing in a substrate moistened with water or 0.1% fluridone solution, in alternating temperatures of 10/25°C and 15/25°C. A completely randomized experimental design was used in a 4 x 2 x 2 factorial arrangement [seed coat color (green, beige, red, brown) × temperature (10/25°C and 15/25°C) × dormancy breaking (with or without)]. In general, the alternating 15/25°C temperature is favorable for germination of everlasting plants. The use of fluridone is favorable to germination and seed vigor, especially when using the alternating temperature of 10/25°C. The effect of seed coat color varies among species; higher germination and vigor values are seen in green seeds for Comanthera sp. and lower values in C. bisculata. For C. nitida and C. elegans, seed coat color does not influence seed quality. Direct relationships between fluoridone efficiency in breaking dormancy of seeds of different species of everlasting plants and classification in different colors are not observed.

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Past Verses Present; Metamorphosis in Different Spheres of Guwahati: A Study of Srutimala Duara’s Mindprints of Guwahati

SMART MOVES JOURNAL IJELLH ◽

10.24113/ijellh.v8i2.10421 ◽

2020 ◽

Vol 8 (2) ◽

pp. 13

Author(s):

Ankita Pandey

Keyword(s):

Point Of View ◽

Areca Nut ◽

Medieval Period ◽

River Bank ◽

North East India ◽

North East ◽

The North ◽

Indian State ◽

The City ◽

Beautiful City

Guwahati derives its name from the Assamese word “Guwa” means areca nut and “Haat” means market. However, the modern Guwahati had been known as the ancient Pragjyotishpura and was the capital of Assam under the Kamrupa kingdom. A beautiful city Guwahati is situated on the south bank of the river Bramhaputra. Moreover, It is known as the largest city in the Indian state of Assam and also the largest metropolis in North East India. It has also its importance as the gateway to the North- East India. Assamese and English are the spoken languages in Guwahati. In 1667, the Mogul forces were defeated in the battle by the Ahom forces commanded by Lachut Barphukan. Thus, in a sense Guwahati became the bone of contention among the Ahoms, Kochas and the Moguls during the medieval period. Guwahati the administrative headquarters of Lower Assam with a viceroy or Barbhukan was made by the Ahom king. Since 1972 it has been the capital of Assam. The present paper will discuss the changes happened in Guwahati over the period of late 1970s till the present time. It will focus on the behavior of people, transformed temples, Panbazar of the city, river bank of Bramhaputra, old Fancy Bazaar, chaotic ways, festivals and seasons including a fifth man made season etc. It will also deal how over the years a city endowed with nature’s gifts and scenic views, has been changing as “a dirty city”. Furthermore, it will also present the insurgencies that have barged into the city. The occurrence of changes will be discussed through the perspective and point of view of Srutimala Duara as presented in her book Mindprints of Guwahati.

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Germination and initial growth of triticale seeds under stationary magnetic fields

JOURNAL OF ADVANCES IN AGRICULTURE ◽

10.24297/jaa.v2i2.4247 ◽

2014 ◽

Vol 2 (2) ◽

pp. 72-79 ◽

Cited By ~ 3

Author(s):

Mercedes Florez ◽

Elvira Martinez ◽

Victoria Carbonell

Keyword(s):

Magnetic Field ◽

Magnetic Fields ◽

Seed Vigor ◽

Initial Growth ◽

Practical Application ◽

Biochemical Processes ◽

Mean Germination Time ◽

Nutrition Value ◽

The Mean ◽

Growth Of Seedlings

The main objective of this study is to determine the effects of 125 mT and 250mT magnetic treatment on the germination and initial growth of triticale seeds. This objective has a practical application in agriculture science: early growth of triticale. An increase in the percentage and rate of germination of seeds and a stimulation of growth of seedlings as positive response to magnetic field treatment in rice, wheat, maize and barley seeds have been found in previous studies. Germination tests were carried out under laboratory conditions by exposing triticale seeds to magnetic field for different times. The effect was studied by exposure of seeds prior sowing. The mean germination time were reduced for all the magnetic treatments applied. Most significant differences were obtained for time of exposure of 1 and 24 hours and maximum reductions was 12%. Furthermore, seedlings from magnetically treated seeds grew taller than control. The longest mean total length was obtained from seedlings exposed to 125 and 250 mT for 24 hours. External magnetic fields are assumed to enhance seed vigor by influencing the biochemical processes by stimulating activity of proteins and enzymes. Numerous studies suggested that magnetic field increases ions uptake and consequently improves nutrition value.

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PRODUCTION OF LIGNOCELLULOSES FROM ASPERGILLUS NIGER USING ARECA NUT SPADE AS BIOMASS..

10.36106/ijsr/1515973 ◽

2019 ◽

pp. 1-3

Author(s):

Madhuri B ◽

Narasimha G ◽

Balaji M*

Keyword(s):

Solid State ◽

Aspergillus Niger ◽

Cellulase Production ◽

Areca Nut ◽

Physical Treatment ◽

Cellulose Production ◽

Lactobionic Acid ◽

Cellulase Enzyme

Areca palm (ChrysalidoCarpus lutescenes) a widely used plant having feathery arching brands with 100 leaflets. All these plants produce much of waste in additions to greeny and nuts. This waste of spade is used for the production of various molecules that are used in industry and pharma sector. Fermentation techniques are used to generate economically important enzymes for industrial and pharmaceutical purposes. Cellulase enzyme degrades the cellulose in between β-1, 4 glucosidic link found in lignocellulosic complex which under physical treatment is slower to degrade. The present study of Aspergillus niger for cellulose production was carried in solid state (SS) and submerged (SM) fermentations for production of cellulase enzyme. Cellulase production in SSF after 72 h of fermentation was 8.02 and in SMF activity was 2.98 per ml of cultured broth at H 6 and temperature at 30°C. Both SMF and SSF were supplemented with lactose and lactobionic acid, which acted as cellulase P production inducers. The aim of the present work was to study the effect of Areca palm spade as substrate for Aspergillus niger and its cellulase production under SMF and SSF.

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