CHICK EMBRYONIC DEVELOPMENT AS INFLUENCED BY IN OVO INJECTED SELENIUM

1978 ◽  
Vol 58 (2) ◽  
pp. 227-232 ◽  
Author(s):  
R. C. FITZSIMMONS ◽  
K. PHALARAKSH

Fresh fertile eggs were injected with four levels of selenium (as sodium selenite) into the air cell and examined after various times of incubation. The treatment effects on embryo morphology, stage of embryo mortality and body weight are reported. The correlation between wet weight vs. dry weight and protein nitrogen was 0.99 and 0.94, respectively, for the 2- to 5-day incubation period. The coefficient of correlation for wet weight vs. dry weight from 6 to 18 days of incubation was also very high (r = 0.97). The four selenium (Se) treatment levels (0.15, 0.30, 0.45, and 0.60 ppm of added Se per embryo) resulted in a significant depression of embryo wet weights at 3 and 4 days of incubation but not at 2 days. There was no treatment effect on male and female embryo wet weights from 6 to 18 days of incubation. Furthermore, there was no significant differences between male and female wet weights during this latter period. The embryo mortality resulting from the above Se treatments was 16.2, 15.1, 28.2 and 29.0%, respectively (control mortality was 8.2%), and 99% of these embryos did not develop beyond the 6-day stage. No morphological abnormalities were observed from the Se treatments.

2018 ◽  
Vol 6 (2) ◽  
pp. 35
Author(s):  
Yetti Elidar

The aim of this research is to know the effect of shade and dosage of palm oil ash as well as their interaction to the root of oil palm plantation in pre nursery. This research was carried out in Nursery Faculty of Agriculture, Mulawarman University, Samarinda from February to May 2011. This research is an experiment arranged in Completely Random Design (RAL) with split plot analysis (4 x 4) with 5 replications. The main plot is the level of shade reduction (N) at the age of 10 weeks which consists of four levels, namely: no = Shade minus 100%, n1 = Shade minus 75%, n2 = Shade minus 50%, n3 = Shade minus 25%. As a plot child is a dose of ash (D) consisting of four levels: d1 = 11.5 g of ash / polybag equivalent to 23 tons / ha, d2 = 23 g of ash / polybag equivalent to 45 tons / ha, d3 = 34.5 g of ash / polybag equivalent to 68 tons / ha, d4 = 45 g of ash / polybag equivalent of 91 tons / ha. Data were analyzed statistically and tested further with the smallest real difference test (BNT) at 5% level. The results showed that the treatment of ash dose 23 g ash / polybag or equal to 45 ton / ha (d2) gave wet weight, dry weight, wet weight of leaf, average dry weight of leaves 5,51 g, 2,32 g , and 5.08 g. The shading treatment gives a mean wet weight of roots 1.90 g.


2019 ◽  
Vol 5 (1) ◽  
Author(s):  
Risqan Fitrah Manik ◽  
Nurhayati Nurhayati ◽  
Erida Nurahmi

Effect of Plant Spacing and Dosage Manure on Growth and Yield of Shallots (Allium ascalonicum L.). This study aims to determine the effect of plant spacing and doses of manure is right for the growth and yield of onion maximum. This research was conducted at the Agricultural Research Station, substations Organic Horticulture Darussalam, Banda Aceh. This research has been conducted on the month in March 2016 to May 2016. This study used a randomized block design (RAK) factorial 2 x 4 with three replications, so that there are 8 combined treatments and 24 experimental units. Factors studied were plant spacing which consists of two levels ie (20 cm x 15 cm) and (20 cm x 25 cm) and the dose of manure which consists of four levels ie (without manure), (10 ton ha-1) , (20 ton ha-1) and (30 ton ha-1). The results showed that the spacing of significant effect on the wet weight berangkasan per plot and the dry weight of tuber per plot, plant height significantly affected the age of 30 HST and berangkasan dry weight per plot. Influential no significant effect on plant height at 15 and 45 days after planting, leaf number aged 15, 30 and 45 days after planting, the number of tillers per hill, tuber number per hill, wet weight berangkasan per clump, dry weight berangkasan per clump, dry weight of tuber per hill. Growth and the best results encountered at a spacing of 15 cm x 20 cm. Dose manure no real effect on all the observed variables. There was no significant interaction between treatment and dose spacing of manure, so there is no relationship between the two factors. Keywords : onion, plant spacing and doses of manure 


2019 ◽  
Vol 4 (2) ◽  
Author(s):  
Tarzan Purba ◽  
Octavianus Lumban Tobing ◽  
Setyono Setyono

Pakcoy (Brassica juncea L.) is a leaf vegetable that requires sufficient nutrients for growth and development to produce maximum production. This study aims to determine the effect of pakcoy watering using coconut water and giving various doses of urea fertilizer to the growth and yield of pakcoy plants. This study used a factorial complete randomized design consisting of two factors. The first factor is the supply of coconut water which consists of four levels of treatment namely without coconut water (A1), volume of coconut water 100 ml (A2), volume of coconut water 150 ml (A3), volume of coconut water 200 ml (A4). The second factor was urea fertilizer which consisted of four treatment levels, namely without urea (N1), urea 0.2 gr (N2), urea 0.4 gr (N3), urea 0.6 gr (N4). The results of this study indicate that the watering of coconut water and the giving of various doses of urea fertilizer affect plant height at the 5th and 6th week, the number of leaves at the 5th and 6th week, leaf area, canopy width at the 5th and 6th week, leaf wet weight, leaf dry weight, root wet weight and root dry weight. The interaction between coconut water and urea fertilizer did not affect all observed variables.Key words: Brassica juncea, coconut water, urea, stover weight, growth.


Nabatia ◽  
2016 ◽  
Vol 4 (1) ◽  
pp. 45-55
Author(s):  
Sri Kusuma Wardani ◽  
Abdul Wachid

The research objective was to determine the effect of the proportion of Lapindo mud and the addition of organic fertilizer to the growth of banana plant seeds. Factorial research using randomized block design (RBD) was repeated three times. The first factor is the proportion of Lapindo mud, which consists of four levels, namely 100% ordinary land (land not contaminated with Lapindo mud), 20% Lapindo mud: 80% ordinary land, 40% Lapindo mud: 60% ordinary land, 60% mud lapindo: 40% of ordinary land. The second factor is the use of organic fertilizer which consists of three levels, namely not using 500 grams of organic fertilizer 750 grams of organic fertilizer Organic fertilizer. The observed characters were stem diameter, plant length, number of leaves, plant wet weight and plant dry weight. Data analysis using 5% ANOVA continued with BNJ test. The results showed that the more content or mixture of Lapindo mud mud the banana plant growth was getting worse. Giving Lapindo mud mixture range of 20%, namely in the ratio of 3 kg Lapindo mud with 12 kg of ordinary land. With the addition of 50% to 75% organic fertilizer improves the growth of banana plants.


AGRIFOR ◽  
2019 ◽  
Vol 18 (1) ◽  
pp. 145
Author(s):  
Sudirman Almi ◽  
Noor Jannah

This study aims to determine the effect of compost types and doses of compost fertilizer and their interactions on the growth and yield of mustard greens. To find out the dosage of compost suitable for mustard plants.The study was conducted in Bukit Makmur Village, Kaliorang District, East Kutai Regency. The research was conducted from May to June 2015. Starting from May 1, 2015 to June 15, 2015.The study used a Factorial 3x4 Complete Randomized Design (RAL) pattern which was repeated 4 (four) times. The first factor is the type of compost fertilizer (K) which consists of 3 (three) levels, namely: cow manure compost (k1), chicken manure compost (k2), and goat manure compost (k3). The second factor was the dose of compost (D) which consisted of 4 (four) levels, namely: without giving doses of compost fertilizer (d0), 35 g / polybag compost (d1), 52.5 g / polybag compost (d2) and 70 g / compost poly bag (d3).The treatment of compost types was significantly different from the wet weight of mustard plants, but it was not significantly different from plant height, number of leaves aged 2, 4 and 6 weeks after planting, and dry weight of mustard plants.The treatment of compost dosage was significantly different for plant height, but it was not significantly different from the number of leaves aged 2, 4 and 6 weeks after planting, wet weight and dry weight of mustard plants.The interaction between types of compost and the dosage of compost differed significantly from plant height, number of leaves aged 2, 4 and 6 weeks after planting, wet weight and dry weight of mustard plants


1969 ◽  
Vol 60 (1) ◽  
pp. 91-100 ◽  
Author(s):  
Charles S. Nicoll

ABSTRACT The response of the pigeon crop-sac to systemically acting prolactin (injected subcutaneously) was evaluated by measuring the wet weight of the responsive lateral lobes of the organ and by determining the dry weight of a 4 cm diameter disc of mucosal epithelium taken from one hemicrop. Of several different injection schedules tested, administration of prolactin in four daily injections was found to yield optimal responses. When compared with a graded series of prolactin doses, measurement of the mucosal dry weight proved to be a better method of response quantification than determination of the crop-sac wet weight with respect to both assay sensitivity and precision. The submucosal tissue of the crop-sac was estimated to constitute about 64 % of the total dry weight of the unstimulated organ and it was found to be relatively unresponsive to prolactin stimulation in comparison with the mucosa. The lipid content of the mucosal epithelium was determined using unstimulated crop-sacs or tissues which showed varying degrees of prolactin-induced proliferation. The fat content of the mucosal epithelial cells increased only slightly more rapidly than the dry weight or the defatted dry weight of the mucosa. Suggestions are made for the further improvement of the systemic crop-sac assay for prolactin.


2020 ◽  
Vol 13 (2) ◽  
pp. 83-92 ◽  
Author(s):  
A. Adam

SummaryEnhancement of the resistance level in plants by rhizobacteria has been proven in several pathosystems. This study investigated the ability of four rhizobacteria strains (Pseudomonas putida BTP1 and Bacillus subtilis Bs2500, Bs2504 and Bs2508) to promote the growth in three barley genotypes and protect them against Cochliobolus sativus. Our results demonstrated that all tested rhizobacteria strains had a protective effect on barley genotypes Arabi Abiad, Banteng and WI2291. However, P. putida BTP1 and B. subtilis Bs2508 strains were the most effective as they reduced disease incidence by 53 and 38% (mean effect), respectively. On the other hand, there were significant differences among the rhizobacteria-treated genotypes on plant growth parameters, such as wet weight, dry weight, plant height and number of leaves. Pseudomonas putida BTP1 strain was the most effective as it significantly increased plant growth by 15-32%. In addition, the susceptible genotypes Arabi Abiad and WI2291 were the most responsive to rhizobacteria. This means that these genotypes have a high potential for increase of their resistance against the pathogen and enhancement of plant growth after the application of rhizobacteria. Consequently, barley seed treatment with the tested rhizobacteria could be considered as an effective biocontrol method against C. sativus.


2018 ◽  
Vol 7 (1) ◽  
pp. 28
Author(s):  
Yetti Elidar

Research on the response of roots of palm sugar palm seeds (Arenga pinnata) in nurseries at doses and intervals of Nasa liquid organic fertilizer. Aims to determine the dosage, interval and combination of dosages and fertilization intervals with Nasa liquid organic fertilizer which can provide the best dry weight of the roots in the nursery. The research design used was a Completely Randomized Design (CRD) with 3x3 factorial experiments and each treatment was repeated 8 (eight) times, consisting of: the first factor was the treatment of POC Nasa dose in a concentration of 3 cc POC Nasa per liter of water (D) consists of 3 levels, namely: d1 = 300 ml POC Nasa, d2 = 400 ml POC Nasa, d3 = 500 ml POC Nasa, while the second factor is the treatment of POC Nasa Interval (I) consisting of 3 levels, namely: i1 = 2 once a week, i2 = once every 3 weeks, i3 = once every 4 weeks. The results of the POC Nasa dose study had a significant effect on leaf wet weight, leaf dry weight, root wet weight and root dry weight. The best dose at this level are: d2 (400 ml of Nasa liquid organic fertilizer), the interval of liquid organic fertilizer Nasa has a significant effect on leaf wet weight, leaf dry weight, root wet weight and root dry weight. The best dose at this level is: i1 (once every 2 weeks). The treatment combination has no significant effect on all parameters. 


2020 ◽  
Vol 51 (4) ◽  
pp. 1231-1238
Author(s):  
Zeki & Ridha

This study was aimed to investigate the ability of N.oleander to remove Cadmium (Cd) from wastewater. A prolonged toxicity test was performed in a single exposure and run for 65 days with various concentrations of Cd. Plants were grown in sand medium and irrigated with simulated wastewater contaminated with Cd, using different concentrations (0, 10, 25, 50, 75 mg/L), which were chosen based on previous preliminary test. The results of physical observation of the plants didn’t show any withering symptoms. The Cd concentration in plants increased, while in water decreased. The results of plant analysis showed that Cd concentration in plant shoots (stems and leaves) was higher than that in roots for almost all exposure doses along the test duration. The concentration of Cd in water decreased significantly from the first week of the test and become (0 mg/l) on day-35 for 10 and 25 mg/l exposure doses, while exceeded the permissible limits for 50 and 75 mg/l exposure doses and were 0.14 and 0.91 mg/l, respectively. Wet weight and dry weight of Oleander decreased with increasing Cd concentration level except for 10 mg/l exposure dose where the plant wet weight and dry weight increased at the end of the test. Bioaccumulation factor (BAF) and Translocation Factor (TF) was found to be greater than 1, indicating that Oleander is a successful hyperaccumulator for Cd.


1987 ◽  
Vol 65 (11) ◽  
pp. 2822-2824 ◽  
Author(s):  
W. A. Montevecchi ◽  
J. F. Piatt

We present evidence to indicate that dehydration of prey transported by seabirds from capture sites at sea to chicks at colonies inflates estimates of wet weight energy densities. These findings and a comparison of wet and dry weight energy densities reported in the literature emphasize the importance of (i) accurate measurement of the fresh weight and water content of prey, (ii) use of dry weight energy densities in comparisons among species, seasons, and regions, and (iii) cautious interpretation and extrapolation of existing data sets.


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