scholarly journals THE EFFECT of GA3 AND SALINITY on GROWTH of ROSELLE (Hibiscus sabdariffa L.)

Author(s):  
Aisar Novita ◽  
Mohammad Basyuni ◽  
Abdul Rahman Cemda ◽  
Silvia Nora ◽  
Merlyn Mariana

In order to alleviate the deleterious effects of salinity, different types of phytohormones have been used. Among them, GA3 has been the main focus of some plant scientists. This study aimed to evaluate the effect of gibberellic acid and salinity on growth and production of roselle (Hibiscus sabdariffa L). This research was conducted in a greenhouse of Agriculture Faculty, University of Sumatera Utara, Medan. The study used utterly randomized design with two factors. The first factor was gibberellic acids. They were gibberellic acid (5 mg L-1) and no gibberellic acid. The second factor was salinity. They were 0 dsm-1 and 4-5 dsm-1. The interaction between gibberellic acid and salinity acid indicated a significant effect on the percentage of germination, chlorophyll a and b and beta-carotene. The application of giberellic acid helped in the tolerance of plants to salinity. Thus, application of GA3 become essential to improve overall productivity in salinity.

Italus Hortus ◽  
2021 ◽  
Vol 28 (1) ◽  
pp. 59
Author(s):  
Qasim Ayub ◽  
Shah Masaud Khan ◽  
Ijaz Hussain ◽  
Ali Raza Gurmani ◽  
Khalid Naveed ◽  
...  

The current study was undertaken to evaluate the responses of okra to salinity and to study the beneficial effects of silicon and gibberellic acid on yield and ionic attributes of okra under salinity stress. For this purpose, a pot experiment was conducted at the Horticultural Farm of the Department of Horticulture, The University of Haripur, Pakistan. Seeds of the okra cultivar ‘Sabz Pari’ were sown in pots. The experiment was established in a complete randomized design with factorial layout and included a total of 14 treatments deriving from the combination of two factors: two salinity levels and seven treatments with silicon or gibberellic acid. Okra seeds were pretreated with either 0, 50, 75 or 100 mg/L of gibberellic acid and then planted into pots. After germination plants were subjected to 0 mmol (control) or 50 mmol salinity; silicon (in the form of potassium silicate) was applied to plants exogenously at the rate of 2 mmol, 3 mmol, or 4 mmol. The following parameters were measured: number of days to flowering, pod length, pod weight, number of pods per plant and pod yield per plant, and the contents of Na+, Cl-, K+, and proline in the leaves. The results revealed that under 50 mmol NaCl salinity okra plants treated with 100 mg/L of GA3 had the shortest time to flowering (48.3 days) and the lowest Na+ ion content (14.9 mg/L) and Cl- ion content (9.8 mg/L), while in these plants we measured an increased pod weight (18.9 g), pod length (14.6 cm), number of pod per plant (22.6), pod yield per plant (1225 g), K+ ion and proline contents (18.9 mg/g and 28.8 μmol/g, respectively). Hence, this study allowed to conclude that the highest salinity level reduced the yield and altered the ionic status of okra plants, whereas GA3 and Si lowered the toxic effects of salinity and 100 mg/L GA3 along with 4 mmol silicon can be used in order to reduce salinity toxic effects


2015 ◽  
Vol 5 (2) ◽  
pp. 85-94
Author(s):  
Novi Safriani ◽  
Nida El Husna ◽  
Rizka Rizkya

The aim of this study was to utilize pumpkin pasta for partial substitution of wheat flourin the dried noodles production. More over, the effect of drying temperature and time on the characteristics of the dried noodles were investigated. This study was conducted using a completely randomized design factorial consisting of two factors: the drying temperature (50oC, 60oC and 70oC) and the drying time (60, 80 and 100 minutes). The results showed that the best quality of the dried noodles obtained from the treatment combination of the drying temperature and time: 70ºC for 60 minutes. The dried noodles have a moisture content of 9.35%, ash content of 1.53%, protein content of 11%, beta-carotene content of 0.67?g/g, cooking time of 6.62 minutes, the descriptive organoleptic value: color of 1.78 (bright yellow), texture of 2.15 (slightly crumbly), aroma of 2.56 (smell of pumpkin), and the hedonic organoleptic value: flavor of 1,77 (really like), elasticity of 1.98 (really like)


2021 ◽  
Vol 9 (2) ◽  
Author(s):  
Riky R. Tununu ◽  
Jhonly Solang ◽  
Henneke Pangkey ◽  
Winda M. Mingkid ◽  
Reni L. Kreckhoff ◽  
...  

This study aimed to 1) determine the best combination between ketapang and banana peels for the propagation of life feed mosquito larvae; 2) determine the culture media that can produce mosquito larvae optimally. The containers used in this study were 24 buckets with a size of 5 litres. Some of the materials used in the study were dried ketapang leaves, goroho banana peels, kepok banana peels and water. This study used a factorial Completely Randomized Design (CRD) consisting of two factors and three replications. The first factor was the difference in the number of ketapang leaves. The second factor was the difference in banana peels types. The first factor included the difference in the number of ketapang leaves, consisting of: Treatment 0 = without ketapang leaves, Treatment 1 = 50 grams of ketapang leaves, Treatment 2 = 75 grams of ketapang leaves, Treatment 3 = 100 grams of ketapang leaves. The second factor included differences in banana peels, which consist of: Treatment 1 = one kepok banana peel, Treatment 2 = one goroho banana peel. The results were different types of banana peels affected the numbers of mosquito larvae, where the best was kepok banana peels; the difference in weight of ketapang leaves did not have a significant effect on the number of mosquito larvae. The container used in this study was a bucket with a volume of 5 L. The banana peels used were goroho banana peels and ripe yellow kapok banana peels. Ketapang leaves were preapared with a weight 0f 0, 50, 75, and 100 grams, respectively. Shoe banana peels and  goroho banana, one skin eachand ketapang leaves 0, 50, 75, and 100 grams, respectively, put together wit the jalah used to wrap between ketapang leavesand spatu banana peels and goroho banana, then put into a container that has been filled wit 3 L of water.


2020 ◽  
Vol 4 (1) ◽  
pp. 1-5
Author(s):  
Mirian Nomura ◽  
Mozart De Mattos Silveira Borges ◽  
Matheus Vinicius Abadia Ventura ◽  
Estevam Matheus Costa ◽  
Muriel Silva Vilarinho ◽  
...  

The objective of this work was to evaluate the production of yellow passion fruit seedlings in protected environments composed of different photoselective screens. The work was developed at the UEMG, unit Ituiutaba and started in May and was evaluated in June 2018. The treatments consist of different types of protected environment: T1-Open Sky; T2 - Black Screen (mesh for 30% shade); T3 - White Screen (mesh for 20% shade); T4 - Blue Screen (mesh for 20% shade) and T5 - Red Screen (mesh for 20% shade). The experimental design was a randomized complete block design with four replications, ten plants per experimental plot. The analysis of the germination content, chlorophyll a and b, number of leaves, leaf length, stem diameter, and shoot height were performed. No photoselective effects were observed for the germination rate, chlorophyll a and b, the number of leaves, shoot height, leaf length and stem diameter in the yellow passion fruit crop.


2019 ◽  
Vol 6 (2) ◽  
pp. 268
Author(s):  
Tressa Pratywi Gupitasari ◽  
Zozy Aneloi Noli ◽  
Suwirmen Suwirmen

The research about roots induction and growth of shoot cutting of Jirak (Eurya acuminata DC.) by adding some growth regulator solutions in various planting medium, was conducted from May until August 2017 in Greenhouse and Plant Physiology Laboratory, Department of Biology, Faculty of Mathematics and Natural Science, Andalas University. The aims of the research to find out effect of  providing growth regulator solution with different types, used of planting medium and interaction of both factors the best to roots induction and growth Jirak (E. acuminata DC.) by cutting. The research used Complete Randomized Design (CRD) factorial with two factors and three replications. Factors A were  growth regulator solution (a0: control, a1: IBA 100 ppm, a2: NAA 100 ppm, a3: IAA 100 ppm) and factors B were various planting medium (b0: garden soil, b1: sand, b2: charcoal husk). The research result were adding some growth regulator solutions and various planting medium significanly affected roots induction and growth of jirak and there is interaction on the high of plant. The treatment of 100 ppm IAA and treatment using sand medium obtain the highest result in increasing roots induction and growth of shoot cutting of Jirak.


2021 ◽  
Vol 9 (1) ◽  
pp. 95
Author(s):  
Maria Elfira Semana ◽  
Pande Ketut Diah Kencana ◽  
I Gusti Ngurah Apriadi Aviantara

ABSTRAK Bambu tabah termasuk kingdom Plantae, divisi Magnoliophyta, kelas Monocotyledoneae, ordo Graminales, famili Gramineae, sub famili Bambusoideae genus Gigantochloa, spesies Gigantochloa nigrociliata Buse-Kurz. Bambu tabah merupakan varietas asli yang berasal dari Pupuan-Tabanan dan banyak dibudidayakan di desa Payangan Gianyar. Penelitian ini dilakukan degan tujuan untuk menentukan kemasan yang dapat mempertahankan karakteristik yang terdapat pada teh daun bambu tabah dengan perlakuan pengemasan menggunakan tiga jenis kemasan yang berbeda yang disimpan pada inkubator dengan suhu 30 °C ± 3 dengan lama penyimpanan enam minggu. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) yang terdiri dari dua faktor yaitu penggunaan jenis kemasan yang berbeda dan lama waktu penyimpanan. Faktor pertama terdiri dari tiga taraf yaitu, (K1) : Alumunium Foil, (K2) : Plastik Polipropilen (PP), dan (K3) : Paper Sack. Faktor kedua terdiri dari tiga taraf yaitu, (T1) : 14 hari penyimpanan, (T2) : 28 hari penyimpanan, dan (T3) : 42 hari penyimpanan. Parameter yang diamati dalam penelitian terdiri dari Kadar Air, Laju Pengeringan, pH, Total Asam, Total Fenol, Total Flavonoid, dan Uji Organoleptik terdiri dari warna, aroma, dan rasa pada daun teh bambu tabah yang diseduh. Hasil penelitian menunjukkan bahwa kandungan fenol tertinggi terdapat pada perlakuan penggunaan jenis kemasan alumunium foil selama penyimpanan 42 hari yaitu 119.354 mg/100g dan total flavonoid yang tertinggi atau terbaik terdapat pada perlakuan penggunaan jenis kemasan alumunium foil selama penyimpanan 42 hari yaitu 27.419 mg/100g.  ABSTRACT Rigid bamboos include kingdom Plantae, division Magnoliophyta, class Monocotyledoneae, order Graminales, family Gramineae, sub family Bambusoideae genus Gigantochloa, species Gigantochloa nigrociliata Buse-Kurz Tabah bamboo is a native variety originating from Pupuan-Tabanan and is widely cultivated in Payangan Gianyar village. This research was conducted with the aim of determining the packaging that can maintain the characteristics contained in tabah bamboo leaf tea with packaging treatment using three different types of packaging stored in an incubator at a temperature of 30 ° C ± 3 with a storage time of six weeks. This study used a completely randomized design (CRD) which consisted of two factors, namely the use of different types of packaging and storage time. The first factor consists of three levels, namely, (K1): Aluminum Foil, (K2): Polypropylene Plastic (PP), and (K3): Paper Sack. The second factor consists of three levels, namely, (T1): 14 days of storage, (T2): 28 days of storage, and (T3): 42 days of storage. The parameters observed in the study consisted of moisture content, drying rate, pH, total acid, total phenol, total flavonoids, and organoleptic tests consisting of color, aroma, and taste of brewed tabah bamboo tea leaves. The results showed that the highest phenol content was found in the treatment of using aluminum foil packaging for 42 days, which was 119,354 mg / 100g and the highest or best total flavonoids were found in the treatment of using aluminum foil packaging for 42 days, namely 27,419 mg / 100g.  


2017 ◽  
Vol 32 (4) ◽  
pp. 393
Author(s):  
Flavia Maria Vasques Farinazzi Machado ◽  
Flávia Aparecida de Carvalho Mariano-Nasser ◽  
Karina Aparecida Furlaneto ◽  
Adriana Maria Ragassi Fiorini ◽  
Rogério Lopes Vieites

Sementes, folhas e frutos de algumas espécies do gênero Garcinia são amplamente utilizadas em várias partes do mundo para fins medicinais, e atualmente, inúmeros compostos fitoquímicos tem sido descritos neste gênero com potenciais efeitos antioxidantes e anti-inflamatórios. O objetivo deste estudo foi quantificar compostos fenólicos, e outros fitoquímicos, e atividade antioxidante das folhas e frutos da espécie Garcinia Cochinchinensis Choisy, conhecida como mangostão amarelo ou falso mangostão. Os frutos e as folhas utilizados no experimento foram obtidos do pomar da Fatec (Faculdade de Tecnologia) de Pompéia/SP, e a identificação da planta foi feita no Herbário do Departamento de Biologia da FFCLRP-USP. Foram realizadas análises de compostos fenólicos totais, flavonoides, carotenóides, antocianinas, pigmentos clorofila A e B, e atividade antioxidante por DPPH nas folhas e frutos. O experimento foi realizado em delineamento inteiramente casualizado com três repetições, e os dados foram submetidos a análise de variância (ANOVA) e teste Tukey usando o programa Sisvar (p<0,05). Os resultados revelaram valores expressivos de compostos fenólicos totais na polpa (469,6 ± 114,9 mg ácido gálico 100g-1) e nas folhas (3739,7 ± 310,5 mg ácido gálico 100g-1) da G. Cochinchinensis Choisy, quando comparados à outras espécies de Garcinia. As folhas apresentaram teores significativamente superiores de flavonoides (665,1 ± 122,9 mg de rutina 100g-1 e 104,6 ± 19,3 mg de quercetina 100g-1), quando comparados à polpa dos frutos (89,6 ± 14,7 mg de rutina 100g-1 e 14,9 ± 2,43 mg de quercetina 100g-1), porém a atividade antioxidante pelo radical DPPH foi maior nos frutos (90,6 ± 2,52 %). Diferenças significativas foram também observadas entre os frutos e as folhas para os teores de carotenoides, antocianinas e pigmentos clorofila A e B, sendo os teores destes fitoquímicos mais expressivos nas folhas do mangostão amarelo. Os teores de antocianinas foram baixos quando comparados a outros frutos do gênero Garcinia. Os frutos e as folhas da Garcinia Cochinchinensis Choisy apresentam expressivas concentrações de compostos fenólicos e flavonoides, além de alta atividade antioxidante total.PALAVRAS-CHAVE: Mangostão amarelo, ácido gálico, flavonoides, antioxidante. PHENOLIC COMPOUNDS AND IN VITRO ANTIOXIDANT ACTIVITY OF GARCINIA COCHINCHINENSIS CHOISY FRUITS AND LEAVESABSTRACT: Seeds, leaves and fruits  of genus Garcinia are widely used in various parts of the world for medicinal purposes, and currently, numerous phytochemical compounds have been described  that have antioxidant and anti-inflammatory potential effects. The aim of this study was to quantify phenolic compounds as  other phytochemicals, and antioxidant activity of leaves and fruits of the species Garcinia Cochinchinensis Choisy, known as yellow mangosteen or false mangosteen. The fruits and leaves used in the experiment were obtained from the orchard located at Fatec, Pompéia / SP), and the identification of the plant was made in the  Biology Department Herbarium, FFCLRP-USP. Analyzes of total phenolic compounds, flavonoids, carotenoids, anthocyanins, chlorophyll A and B pigments, and antioxidant activity by DPPH in leaves and fruits were performed. The experiment was performed in a completely randomized design with three replicates, and the data was  submitted to analysis of variance (ANOVA) and Tukey test using Sisvar program (p <0.05). The results showed significant values of total phenolic compounds in the pulp (469.6 ± 114.9 mg gallic acid 100g-1) and in the leaves (3739.7 ± 310.5 mg gallic acid 100g-1) of G. Cochinchinensis Choisy, compared to other species of Garcinia. The leaves had significantly higher levels of flavonoids (665.1 ± 122.9 mg of rutin 100g-1 and 104.6 ± 19.3 mg of quercetin 100g-1) compared to fruit pulp (89.6 ± 14. mg of rutin 100g-1 and 14.9 ± 2.43 mg of quercetin 100g-1), but the antioxidant activity by the DPPH radical was higher in fruits (90.6 ± 2.52 %). Significant differences on of carotenoids, anthocyanins and chlorophyll A and B pigments were also observed between fruits and leaves.  Yellow mangosteen leaves showed the most expressive phytochemical content. The levels of anthocyanins were low compared to other fruits of the Garcinia genus. The fruits and leaves of Garcinia Cochinchinensis Choisy present expressive concentrations of phenolic compounds and flavonoids, in addition, a high total antioxidant activity.KEYWORDS: Yellow mangosteen, gallic acid, flavonoids, antioxidant.


2020 ◽  
Vol 2 (1) ◽  
Author(s):  
Wiwik Endah Rahayu ◽  
Atika Romalasari

Nut grass is Cyperaceae group and underestimated its existence. Nut grass has many benefits so  potential to be developed. This study aims to determine the effect of planting media and the addition of NPK fertilizer to the growth of the nut grass and find out the nutrient content of chips made from nut grass tuber. The design of this study was factorial complete randomized design (RAL) which consisted of two factors. First factor is Planting Media, consist of M1 = soil, M2 = Soil: Sand (2: 1), M3 = Soil: Compost Fertilizer (2: 1) and M4 = Soil: Cage Fertilizer (2: 1) and second factor is fertilizer dosage NPK 15: 15: 15 with the level P1 = Without NPK fertilizer, P2 = 5 g NPK fertilizer, P3 = 10 g NPK fertilizer. Research result showed that the media significantly affected the number of clumps, root weight, clump weight, overall weight and number of flowers but did not significantly affect the height, number of tubers and tuber weight. Fertilizer significantly affected the number of clumps, root weight, clump weight, overall weight, number of flowers, number of tubers and tuber weight but did not significantly affect the height at P≤0.05 level. Interaction between planting media and NPK fertilizer did not significantly affect all parameters. Keywords: Chips, NPK Fertilizer, Nut Grass, Planting Media


2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Yao Zhang ◽  
Jingfeng Huang ◽  
Fumin Wang ◽  
George Alan Blackburn ◽  
Hankui K. Zhang ◽  
...  

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