Interaction of Alachlor and Carbofuran

Weed Science ◽  
1973 ◽  
Vol 21 (4) ◽  
pp. 330-335 ◽  
Author(s):  
Allan S. Hamill ◽  
Donald Penner

The combination of the herbicide 2-chloro-2′,6′ diethyl-N-(methoxymethyl) acetanilide (alachlor) with the insecticide 2,2-dimethyl-2,3-dihydrobenzofuranyl-7-N-methyl-carbamate (carbofuran) interacted synergistically to reduce barley [Hordeum vulgareL. ‘Larker’] but not corn [Zea maysL. ‘Michigan 400’] growth. Alachlor alone increased the respiration rate of barley. Accumulation of14C from14C-alachlor was greater in the plant roots than shoots. The increased accumulation of alachlor in the roots was accentuated by a reduced rate of alachlor metabolism. The basis for the observed interaction appeared to be greater alachlor uptake by barley plants grown from seed treated with carbofuran. A statistical procedure for pesticide combinations in experiments with a completely randomized design was developed for the calculation of interaction significance.

ZOOTEC ◽  
2016 ◽  
Vol 37 (1) ◽  
pp. 15
Author(s):  
Novalia Lumban Gaol ◽  
Ch. L. Kaunang ◽  
Rustandi . ◽  
F. Dompas

INFLUENCE OF CONCENTRATION AND SOAKING TIME OF A. pintoi IN THE COW URINE ON PLANT GROWTH. Cow urine has an auksin a, auksin b, and IAA (hetero auksin) that can stimulate plant roots. The present study was conducted to determine the influence of concentration and soaking time in the cow urine on Arachis pintoi (A. pinto) growth. This study used Completely Randomized Design (CRD) in Factorial arrangement with 2 factors A and B. Factor A= urine concentration: A1 = urine 75% + water 25% and A2; urine 50% + water 50%; and factor B = soaking time: B1 = 1 hour; B2 = 2 hours; Dan, B3 = 3 hours. Treatments were replicated 4 times. Parameters measured were: leaves amount (sheets), plant length (cm), and root weight (g). Research results showed that mean leaves amount ranged from 41,65 to 46,77 sheets, plant length 35,97-36,67 cm, and root weight 1,95-1,72 g. Utilization of cow urine with a different concentration and soaking time gave a non significant different (P>0.05) on leaves amount, plant length, and root weight. It can be concluded that cow urine concentration and soaking time do not effect leaves amount, plant length, and root weight of Arachis pintoi (A. pinto). Key words:  Cow urine concentration, Soaking time,  A. pintoi.


2006 ◽  
Vol 12 (2) ◽  
pp. 193
Author(s):  
Jesús Fuentes ◽  
Antonio Cruz ◽  
Lorenzo Castro ◽  
Gilberto Gloria ◽  
Sergio Rodríguez ◽  
...  

This research was conducted to evaluate 16 corn varieties cultivated for silage. The evaluation included: fodder production of green and dry matter, protein content and in vitro dry matter digestibility (IVDMD) and organic matter digestibility (IVOMD). A completely randomized design was used for statistical analysis and Tukey mean separation was used when appropiated. Fodder production as kg/ha was higher for AN446 (114028), AN445 (110993), and AN430R (106389). Dry matter fodder production was higher for AN447 (29270), AN461 (28026), VS373 (25434). Protein content (%) was higher for G4657 (7.58), AN388 (7.28), and AN448 (7.17). The best values for IVDMD (%)were for G1990 (69.14), AN446 (63.78), and AN430RR (63.50), while the higher values for IVOMD (%) were for G1990 (71.78), AN446 (65.20), and AN447 (65.12). Varieties AN446 and AN447 appeared frequently with the best values in the parameters evaluated, therefore, new research has to be performed with these varieties to confirm results found in this study.


2019 ◽  
Vol 1 (1) ◽  
Author(s):  
I wayan Ari Widiantara

This research was aimed to determine the effect of beef fertilizer on growth and biomass production in some corn hybrid varieties (Zea mays). This research used completely randomized design factorial 6 x 4 with four replications. The first factor is the corn hybrid varieties were V1 (Bisi-2), V2 (Bisi-16), V3 (Bisi-222), V4 (Nk-212), V5 (Pertiwi-2), V6 (Pacific-224), and the second factor was the level of beef fertilizer were P0 (0 ton/ha), P1 (20 ton/ha), P2 (30 tons/ha), P3 (40 tons/ha). The parameters measured were growth of plant height, the fresh water production and leaf blade percentage of corn hybrid varieties. The results showed that the variety and level of treatment of fertilizer was highly significant effected (P0,01) to the plant high, the fresh water production and leaf blade percentage corn hybrid varieties. Interaction factor were significant effected (P0.05) to the fresh water production, whereas in the growth of plant high and leaf blade percentage did not effected (P0.05). Each treatment was getting the best results in plant height at V2P3 (224 cm), fresh water production at V4P3 (5234 g/plot) and leaf blade percentage at V4P2 (35.35%).


Agrotek ◽  
2018 ◽  
Vol 2 (4) ◽  
Author(s):  
Syukur Karamang

This research was aimed at understanding the corn plant using plastic covers. The above mentioned plant was grown in plastic covers that have colours (transparent, red, green, and blue) and without plastic covers. This research was carried out in the Faculty of Agriculture, IPB from the month of May to June 2008. It was implemented using the Completely Randomized Design with three repetitions. The results of the research show that light intensity was higher in the plant that was not enclosed in the plastic covers. Generally, the research shows that the corn plant that was in the plastic covers is better than that one without plastic covers. The use of a plastic cover helps increases the height of the corn plant and the leaves. Chlorophyll a and Chlorophyll b are higher in the corn plant that was not in the plastic covers. The results of the research also indicate that transparent and red plastic covers have better responses compared to plastic covers with blue and green colors.


Pastura ◽  
2017 ◽  
Vol 5 (1) ◽  
pp. 42
Author(s):  
Dwi Retno Lukiwati ◽  
Endang Dwi Purbawati ◽  
Retno Iswarin Pujaningsih

Manure enriched with rock phosphate (RP) and inoculated with biodecomposer very important to improve the dry land fertility. The objective of the research was to investigate the influence of some kind of manure enriched with RP in granular form and biodecomposer inoculated on sweet corn (Zea mays saccharata) stover nutrient as local forage feed for ruminant. A field experiment of completely randomized design with 7 treatments and four replicates was conducted on vertisol soil. Level of P (RP), N (urea) and K (KCl) fertilizers was 66 kg P/ha, 200 kg N/ha, and 125 kg K/ha, respectively. All of manure application at 30 t/ha, and enriched with RP. The treatments were T0 (manure), T1 (manure+EM4), T2 (manure+starTmik), T3 (manure+stardec), T4 (manure granular+EM4), T5 (manure granular+starTmik), and T6 (manure granular+stardec). The sweet corn was harvested at 70 days after planting, the stover was cut and measured for crude protein (CP), phosphorus (P), and calcium (Ca) concentration. The result showed that the treatment significantly affected to the nutritive value of sweet corn stover. The result of DMRT showed that effect of some kind of manure enriched with RP was not significantly different on CP, P, and Ca concentration of sweet corn stover. Conclusion, manure enriched by RP with or without biodecomposer, in granular or non-granular form, resulted in similar on CP, P, and Ca concentration of sweet corn stover.Keywords: biodecomposer, manure, phosphorus, stover, Zea mays saccharata.


2018 ◽  
Vol 3 (2) ◽  
pp. 97
Author(s):  
Surtinah Surtinah

The aim of the study was to obtain varieties that provide the best agronomic results in the Marpoyan Damai location. The treatment design used is Varieties consisting of three varieties, namely; v1 = Sweet Boy, v2 = Sweet Lady, v3 = Bonanza, the environmental design used was a completely randomized design, with six replications. Data were analyzed by variance, and followed by Duncan's 5% distance test. Observations were made on the weighted cob, weight of cob without weight, cob length, ear length without weights, ear diameter, and sugar content of sweet corn seeds. The results obtained were Sweet Boy variety varieties which are the best varieties recommended to be developed at the Marpoyan Damai planting site.


2019 ◽  
Vol 5 (2) ◽  
pp. 57
Author(s):  
Pratiwi Rosmayanti ◽  
Deden Sudrajat ◽  
Burhanudin Malik

Sheep is a small ruminant llivestock that area mostly raised by farmers in Indonesia fat tailed sheep (DEG) is one of the genetic resources of livestock that has  economics, scientifics and socio-cultural values and has the potential; to be used to meet the needs of animal protein for humans. This study aimed to examine the effect of indigofera sp flour feeding on the physiological response of fat tail rams. The design used was a completely randomized design with the following treatments: control feed without administration of indigofera sp flour (P0), commercial feed + 10% Indigofera sp flour (P1), Commercial feed +20% Indigofera sp flour (P2). The treatments was given to male fat-tailed sheep with body weight (30 kg) and uniform age (1,5 years), healthy and not disabled. The variables observed were body temperature, respiration rate, heart rate, and feed consumption. The treatments of giving Indigofera sp flour to the ration was estimated to have a significant effect (respiration rate, heart rate and body temperature) from the normal limit compared to thr treatments of fat tail rams without administration of Indigofera sp flour.Key words: fat tailed sheep, Indigofera sp flour, physiological response 


Jurnal Solum ◽  
2012 ◽  
Vol 9 (1) ◽  
pp. 36
Author(s):  
Agustian Agustian ◽  
Arwie Delfi ◽  
Lusi Maira

In the first stage of arbuscular-mycorrhiza (AMF) fungi development on plant roots showed that root exudates, is a substance that determines the success of the establishment of mycorrhizal symbiosis. This secondary metabolites produced is intended to keep mold growth during the phase preinfection. Therefore, it is interesting to know whether to add the root extract of the plant could enhance CMA fungal infection in its host plant. The purpose of this study was to determine the type of root extract can stimulate CMA infection at the root and its influence on the growth of Tithonia diversifolia. This experiment used Completely Randomized Design (CRD) with 4 treatments and 3 replications, and continued with advanced test DNMRT at level 5%. The treatments assayed were: control, Tris-HCl buffer pH 7 (A), root extract of weed Imperata cylindrica (B); root extract of taro (C), and root extract of cassava (D). Base on the results obtained we concluded that the extract of the roots of weeds, taro and cassava does not give effect to the increased growth of Tithonia. However, the roots extract stimulated and had influenced on the percentage and intensity of AMF infection at the root of Tithonia and the number of spores obtained in the rhizosphere of Tithonia. In this case the root extract of taro showed the best stimulatory effect of infection with the percentage and intensity of infection are 99.3% and 30.59% consecutively with the number of spores found reach 113 spores/ 100 g soil.Key words: Stimulation, arbuscular-mycorrhiza, root extract, Tithonia diversifolia


2019 ◽  
Vol 7 (1) ◽  
pp. 47-53
Author(s):  
Tri Ida Wahyu Kustyorini ◽  
Aju Tjatur Nugroho Krisnaningsih ◽  
Dimas Zulfikar Hanif

ABSTRAK  Tujuan penelitian ini adalah untuk mengetahui pengaruh konsentrasi larutan urin sapi yang berbeda terhadap persentase perkecambahan, persentase kecambah normal dan produksi hijauan segar pada hidroponik fodder jagung (Zea mays). Materi yang digunakan dalam penelitian ini adalah jagung kuning sebanyak 6.250 biji, urin dan air. Metode penelitian yang digunakan adalah percobaan lapang dengan menggunakan Rancangan Acak Lengkap (RAL) dengan 5 perlakuan dan 5 ulangan. Adapun perlakuan yang di gunakan adalah P0 (100ml air), P1 (5%  urin), P2 (10% urin), P3 (15% urin), P4 (20% urin). Variabel yang diamati dalam penelitian ini adalah persentase perkecambahan, persentase kecambah normal dan produksi hijauan segar. Data yang diperoleh dianalisis dengan menggunakan analisis sidik ragam (ANOVA), apabila terdapat perbedaan dilakukan uji lanjut dengan menggunakan Uji BNT (Beda Nyata Terkecil).Berdasarkan hasil penelitian, menunjukkan bahwa produktivitas fodder jagung (Zea mays) dengan perlakuan penyiraman menngunakan konsentrasi larutan urin sapi yang berbeda memberi pengaruh yang sangat nyata (P<0,01) terhadap persentase perkecambahan, persentase kecambah normal dan produksi hijauan segar. Persentase perkecambahan tertinggi pada P1 (70,48%), persentase kecambah normal tertinggi P1 (94,63%) dan produksi hijauan segar tertinggi pada P1 (138 gram). Berdasarkan hasil penelitian dapat disimpulkan bahwa penggunaan konsentrasi larutan urin 5% sebagai media penyiraman dan pupuk organik memberikan nilai terbaik terhadap persentase perkecambahan, persentase kecambah normal dan hijauan segar pada hidroponik fodder jagung (Zea mays).   ABSTRACT  The aim of this research were to know of the effect of different concentrations of cow urine solution on the effect of urine cow solution concentration for watering media and organic fertilizer on percentage of gemination, percentage normal germination and plant production on corn fodder (Zea mays) with a hydroponic system of corn fodder (zea mays) with hydroponic systems. The material of this research were corn, urine and water. The method used was experimental field using Completely Randomized Design (CDR) with 5 treatmens and 5 replications. The treatment used is P0 (0% urine solution), P1 (5% urine solution), P2 (10% urine solution), P3 (15% urine solution), P3 (20% urine solution). The variables observed in this study were Percentage of Germination, Percentage of Normal Germination and Plant Production. Based on the results of the study, it shown that watering treatment using different concentrations of cow solution had a very significant effect (P <0.01) on germination percentage, normal germination percentage and plant production. The highest percentage of germination was P1 (70.48%), the highest percentage of normal germination was P1 (94.63%) and the highest plant production was P1 (138 grams). Based on the results of the study it can be concluded that the treatment by giving 5% urine cow solution concentration for watering media and organic give the best value to fertilizer on percentage of gemination, percentage normal germination and plant production on corn fodder (Zea mays) with a hydroponic system.


Author(s):  
Luz Amparo Mariño-González ◽  
Claudia Marcela Buitrago ◽  
Helber Enrique Balaguera Lopez ◽  
Efraín Martínez-Quintero

The peach (Prunus persica L., family Rosaceae) is a drupe that is consumed fresh and used in industry; it has a climacteric behavior and, because of its high water content, is highly perishable. This study aimed to evaluate the effect of 1-methylcyclopropene (1-MCP) and ethylene on the postharvest physiology of peach fruits cv. Dorado. Harvested fruits with 100% green, 0% yellow skin color were used in a completely randomized design with four treatments: ethylene, 1-MCP, 1-MCP+ethylene and a control. After treatment, the fruits were stored at room temperature. During storage, the respiration rate, weight loss, firmness, color index of the skin, total soluble solids, total acidity and maturity ratio were evaluated. The results showed the efficiency of 1-MCP in peach cv. Dorado: 1-MCP decreased the respiration rate, color index of the skin, soluble solids and maturity ratio, while the firmness and total acidity were greater. The ethylene application showed an opposite effect, suggesting that it may regulate a large part of peach cv. Dorado ripening.


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