scholarly journals The Effect of Phosphorus and Potassium on the Growth and Quality of Viola (Viola cornuta L.) Seed Production

2019 ◽  
Vol 35 (1) ◽  
pp. 12
Author(s):  
Alfa Sada Saputra ◽  
Suprihati Suprihati ◽  
Endang Pudjihartati

<p>Viola cornuta L. is an ornamental plant that is primarily propagated by high-quality seeds that have high demand in subtropical countries. The use of fertilizers according to recommendations results in the growth of parent plants below the standard. Furthermore, seed production is generated below 2 g per plant and the seed germination capacity is below 80%. In addition, phosphorus (P) and potassium (K) nutrients can increase the growth and seed production of the plants, including ornamental plants. The study aimed to determine the influence of P and K nutrients on growth and seed production of V. cornuta L. Research was carried out in November 2018 - January 2019 at PT. Selektani Horticulture, Ngablak, Magelang. There were seven treatments with four replications. Experiments were arranged according to the Randomized Complete Block Design (RCBD). Plants were grown in 5l volume-polybags. Fertilization was done by watering the planting media. Analysis of variance was performed at 95% accuracy. The study shows that P and K nutrients have a highly significant effect on height, number of flowers, number of seed per capsule, seed production and germination energy and significantly affected the number of leaves. The addition of both P and K fertilizers in the vegetative and P in the generative stage (P6) can result in the productivity of 3.28 g plant-1 and produce germination energy ≥90%. It is recommended for increasing growth and seed production.</p>

Author(s):  
Amina Alvi ◽  
M. Z. Rashid ◽  
M. Asim ◽  
S. Rashid ◽  
S. Muqeet

Plants require a balanced nutrition program formulated to provide specific needs for maintenance and for expected production performance. Hence this experiment was conducted to evaluate the optimum level of phosphorus and potassium for growth and productivity of young Kinnow (Citrus reticulata Blanco) plants. The experiment was designed under Randomized Complete Block Design (RCBD) comprised with seven treatments and replicated thrice. The treatments included, T1= 200 g P2O5 + 200 g K2O, T2= 150 g P2O5 + 200 g K2O, T3= 250 g P2O5 + 200 g K2O, T4= 300 g P2O5 + 200 g K2O, T5= 250 g P2O5 + 150 g K2O, T6= 200 g P2O5 + 250 g K2O and T7= 200 g P2O5 + 300 g K2O. Maximum plant height (3.12 m) and Juice (43.48%) was observed in T5= 250 g P2O5 + 150 g K2O. The highest number of flush (33.08), number of leaves (101.25 m2), length of flush (13.75 cm), Seed weight (1.33 g), Aborted seeds/fruit (8), mature seed fruit (5.48) were noted in T7. Leaf area index and peel thickness were significantly increased in T6= (200 g P2O5 + 250 g K2O) with values 1.91 cm3 and 4.30 mm respectively. So, it is concluded that T5= 250 g P2O5 + 150 g K2O and T7= 200 g P2O5 + 300 g K2O is the best treatments for the growth and better yield of young Kinnow plants.


2019 ◽  
Vol 11 (9) ◽  
pp. 120
Author(s):  
Cecília L. P. Resende ◽  
Leandro F. Damaso ◽  
Mylla C. R. Ávila ◽  
Daniel D. C. Carvalho ◽  
Patrícia G. S. Melo ◽  
...  

The efficiency and responsiveness agronomic to the main macronutrients is becoming increasingly important due to the risk of supply, since it is a finite resource. In addition, excess fertilizer decreases the quality of water and air. Thus, the objective of this work was to assess the corn hybrids in terms of their efficiency and responsiveness to nitrogen (N), phosphorus (P) and potassium (K), and identify the ones most suitable for fresh consumption, according to the product type and technological level to be adopted by the farmer. The randomized complete block design in a 10 &times; 3 (hybrids and doses) factorial scheme was adopted for the experiment, with three replications, for two season crops (2013/14 and 2014/15). Ten hybrids (2B512PW, 2B587PW, 2B707PW, 30F35HR, 30F53YH, AG1051, BRS1055, BM3061, P3646H e P3862YH) were used in isolation under low availability (without application) and partial, of N, P and K, in an isolated manner, also evaluated under the recommended dose, aiming at fresh consumption. The most efficient and responsive hybrid must first be identified in isolation, based on the availability it is subjected to and later, by its sale, focused on fresh consumption. The hybrids indicated for low availability (low technological level) were BRS1055 and 30F53YH, with respect to responsiveness or agronomic efficiency, the hybrid P3862YH was the one that presented the best performance and indicated for technological levels of medium to high, considering the classification obtained for the nitrogen, phosphorus, and potassium for production vegetable corn.


2020 ◽  
Vol 3 (2) ◽  
pp. 71
Author(s):  
Fatiani Manik ◽  
Rasiska Tarigan ◽  
Susilawati Barus

The quality of seed needs to be considered in carrot seed production to maintain its productivity. The research aims to find out the response of stecklings age and plant spacing on carrot seed quality and production. This research was held on July 2018 – April 2019 in Berastagi field trial (1340 m MSL). The experiment used Randomized Complete Block Design (RCBD) with two factors, i.e., stecklings age (2 and 3 months) and plant spacing (25, 50, 75, and 100 cm), replicated four times (32 experiment units), 10 plants from each experiment units were taken as samples. The result showed that stecklings age and plant spacing were affected to plant vegetative and generative stages. The combination of 2-month stecklings and 50 cm plant spacing increased the number of secondary umble, if compared to cultivation, which was generally used by the farmer (3-month stecklings and 25 cm plant spacing). The best quality of carrot seed was obtained from the combination of 3-month stecklings and 50 cm plant spacing.


2017 ◽  
Vol 48 (2) ◽  
Author(s):  
A. H. Abdul Razzaq

A field experiment was conducted at Unifert Research Station Yousfiah Center of Iraq during spring of 2015 by grafting five cucumber hybrids named Mayadine, Ghazeer, Najim, Emparator and Beit Alpha on the rootstock ES101 (Cucurbita maxima x Cucurbita moschata) used the hole Insertion technique. The experiment content 10 treatments which were the grafted and ungrafted hybrids using randomized complete block design with three replications. The results showed that grafted Emparator (C4G) gave asignificans increase in the number of leaves (124.20 leaf.plant-1), leaf area (1.85 m2), chlorophyll leaf content (603.0 mg.100 g-1), plant dry weight (191.7 g.plant-1) and the amount of absorbed (nitrogen, phosphorus and potassium) by square area which were (17.77, 1.11 and 14.82 g.m-2, respectively). However, grafted Nagim (C3G) showed an increase in fruit count (14.03 fruit.plant-1), plant yield (1.53 kg.plant-1, early yield (10.60 ton.ha-1) and total yield (28.77 ton.ha-1).


2020 ◽  
Vol 2 (2) ◽  
pp. p148
Author(s):  
Lamia Khatun ◽  
Md. Rezaul Karim ◽  
Fakhar Uddin Talukder ◽  
Md. Sohanur Rahman

The purpose of the present study was to evaluate the effect of vernalization and GA3 on seed yield and reproductive quality of summer onion. There were three vernalization treatments viz., no vernalization (control), vernalization at 5°C for 14 days and vernalization at 10°C for 14 days and four GA3 treatment viz., 0, 50, 100 and 150 ppm. The two-factor experiment was conducted in the Randomized Complete Block Design (RCBD) with three replications. Combination between vernalization and GA3 was significant on the parameters such as plant height, number of leaves plant-1, the highest number of flowering stalk, number of umbels plant-1, number of bud umbel-1, percent flowering at 45 and 60 DAP, number of seeds umbel-1, weight of seeds umbel-1, weight of seeds plant-1, weight of seeds plot-1, 1000 seed weight, seed yield, number of fruits umbel-1, percent of fruit set umbel-1and percent germination. Combined effect of vernalization & GA3 was considered the highest seed yield (280.42 kgha-1) was obtained from vernalization at 5°C for 14 days with 100 ppm GA3. The lowest values of all the parameters were recorded in the control treatment. No limitation is found in the present experiment.  Combined use of proper vernalization of mother bulb and suitable concentration of gibberellic acid can be one possible way to expand onion production during the summer.


2017 ◽  
Vol 14 (1) ◽  
Author(s):  
Tri Dewi Andalasari ◽  
Yafisham Yafisham ◽  
Nuraini Nuraini

The use of ferns as growing media orchids ranging deemed expensive , so it is necessary to find an alternative media as a media surrogate fern that has been used .This study aimed to explore alternative growing media and fertilizers are good for growth and development of dendrobium orchids . Selection of a good planting medium and the proper use of fertilizers can be expected to support healthy plant growth and quality of orchids .Greenhouse experiments were conducted at the Faculty of Agriculture University of Lampung . Treatment arrangement was factorial by randomized complete block design with three replication. The treatment is done byp factorial ( 6x2 ) . The first factor is the type of growing medium consists of wood charcoal ( M1 ) , ferns ( M2 ) , husk + sawdust ( M3 ) , acacia bark ( M4 ) , cocochip ( M5 ) and coconut bark ( M6 ) . The second factor is the type of foliar fertilizer consists of Gandasil ( P1 ) and Hyponex ( P2 ) . Data were analyzed by analysis of variance followed by HSD test at 5% level .The results showed that the use of media orchids ferns produce good vegetative growth , not unlike the use of planting medium charcoal , charcoal husk + sawdust , bark and bark acacia tree oil , but it is different than the use of cocochip shown in variable plant height , number of leaves , leaf length and leaf width . While foliar fertilizers that produce good growth is fertilizer Gandasil . Key word: dendrobium , growing media , foliar fertilizers


2020 ◽  
Vol 26 (2) ◽  
pp. 244-250
Author(s):  
Abdur Rahman ◽  
Ibrar Hussain ◽  
Ghulam Nabi ◽  
Ziaullah

Abstract Ornamental plants like gladiolus are suitable option for growers with lower amount of land, as they are highly economic and have lower cost of production. An experiment was conducted with aim to study the exogenous application influence of gibberellic acid on vegetative and reproductive characteristics of gladiolus was conducted under the subtropical conditions. The experiment was laid out in two factors randomized complete block design and replicated three times. Gibberellic acid (GA3) was used in different concentrations (0, 50, 100, 150, 200 mg L-1) to corms of two cultivars of gladiolus (‘White Prosperity’ and ‘Red Advance’). Results showed that most of the parameters were significantly influenced by gibberellic acid at 200 mg L-1. The maximum sprouting, number of leaves plant-1, daughter corms per plant, less number of days to corm sprouting, days to spike emergence and flower opening were recorded in plants treated with 200 mg L-1 gibberellic acid (GA3). ‘Red Advance’ produced more number of leaves plant-1, corm diameter, corm weight, and less number of days to spike emergence and flower opening. It can be concluded from the present findings that the treatment of corms with 200 mg L-1 gibberellic acid can improve the growth and yield of cultivar Red Advance than White prosperity under the subtropical conditions.


2021 ◽  
Vol 8 (01) ◽  
pp. 8-15
Author(s):  
Md. Shaheeduzzaman Sagor ◽  
Md. Mokter Hossain ◽  
Tamanna Haque

This study was conducted to examine growth, yield and quality performances of five turmeric genotypes. The experiment was laid out in randomized complete block design with three replications. Results showed that different genotypes significantly influenced on plant growth, yield and quality of turmeric. The highest germination (97 %), number of leaves (8.16), plant height (69.51 cm), weight of rhizome (47.06 g/plant) and yield (6.01 t/ha) was found from “Sinduri Holud” (BARI Holud-2). But this genotype scored the lowest percentage in curcumin (0.30 %) and low dry matter (22.54 %). While local genotype (“Mota Holud”) performed the lowest germination (87.57 %) and minimum plant height (53.52 cm), leaf area (127.42 cm2), number of fingers per rhizome (3.73), weight of rhizome (34.16 g/plant) and yield (4.78 t/ha). But this genotype contained the highest curcumin (2.10 %), and “Mala Holud” attained maximum dry matter (25.20%). Based on flesh color, dry matter and curcumin contents local turmeric genotypes performed superior than that of the check varieties. From the findings of this investigation, it can be concluded that local genotypes can be used in breeding program for development of high quality turmeric in Bangladesh.


Author(s):  
Aldeir R. Silva ◽  
Francisco T. C. Bezerra ◽  
Lourival F. Cavalcante ◽  
Walter E. Pereira ◽  
Leandro M. Araújo ◽  
...  

ABSTRACT The objective of this work was to evaluate the growth of sugar-apple seedlings under irrigation management with saline water in a substrate with soil amendment. Treatments were obtained from the arrangement between polymer doses (0, 0.2, 0.6, 1.0 and 1.2 g dm-3) and levels of irrigation water electrical conductivity (0.3, 1.1, 2.7, 4.3 and 5.0 dS m-1), associated with irrigation frequencies (daily and every alternate day), and two additional treatments to evaluate container volume (1.30 and 0.75 dm3), using a randomized complete block design, with four replicates. At 120 days after sowing, the variables substrate salinity, stem diameter, plant height, number of leaves and Dickson quality index were determined. Data were submitted to analyses of variance, regression and contrast. Substrate salinity increased with the increase in irrigation water electrical conductivity and polymer doses. Growth and quality of the seedlings were reduced with increasing irrigation water salinity, and highest values of the variables were obtained in seedlings under daily irrigation. Container with larger volume led to higher growth. The use of hydrated polymer at the adopted levels had no effect on growth and quality of seedlings, requiring further studies. To produce sugar-apple seedlings with better quality, irrigation frequency should be daily and water electrical conductivity should be lower than 2 dS m-1.


2003 ◽  
Vol 21 (3) ◽  
pp. 443-447 ◽  
Author(s):  
Márcio S. de Lima ◽  
Antonio I. I. Cardoso ◽  
Marcelo F. Verdial

Squash seeds yield and quality can be improved by proper population plant spacing and the pollen quantity, which influences the pollination quality and fertilization. Nine experiments were conducted as a factorial combination of three spacing between plants (0.8 x 0.3, 0.8 x 0.6 and 0.8 x 0.9 m), two quantities of pollen (50% of an anther and another entire one) and natural insect pollination. Seed and fruit production parameters, and seed quality were evaluated. A randomized complete block design, five replications, with ten plants per plot was adopted. Larger plant spacing increased the average number of mature fruits and seed yield per plant. Seed yield was directly proportional to the amount of pollen used during pollination. Higher amounts of pollen resulted in higher seed yield per area, but the plant spacing did not affect this characteristic. Manual pollination, using a whole anther, did not differ from natural pollination in relation to seed yield and quality.


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