scholarly journals Control of Lepidopterous Larvae in Broccoli, 1995

1996 ◽  
Vol 21 (1) ◽  
pp. 89-89
Author(s):  
J. C. Palumbo
Keyword(s):  
Foliar Application ◽  
Double Row ◽  
Insecticide Efficacy ◽  
Direct Seeded

Abstract Broccoli was direct seeded into double-row beds on 19 Sep at the Yuma Valley Agricultural Center, Yuma, Az. Each plot consisted of four, 30 ft long beds spaced 42 inches apart and bordered on each side by an untreated bed. Plots were arranged in a RCB design with 4 replicates. A single foliar application was made on 15 Oct with a hand-held CO2 sprayer operated at 60 psi, delivering 20 gal/acre. Spreader-sticker (Kinetic) was included in all spray treatments at a rate of 0.25% of the total volume. Insecticide efficacy was determined by counting the total number of small (1st and 2nd instars) and large (> 2nd instar) BAW and CL larvae on 10 randomly selected broccoli plants per replicate. Insect counts were conducted the day of application, 15 Oct, and at 4 days after treatment, 19 Oct (4 DAT).

scholarly journals Evaluation of Pyrethroids and Selected Insecticides for Control of Cabbage Looper in Broccoli

1997 ◽  
Vol 22 (1) ◽  
pp. 86-86
Author(s):  
J. C. Palumbo
Keyword(s):  
Cabbage Looper ◽  
F Test ◽  
Double Row ◽  
Insecticide Efficacy ◽  
Direct Seeded ◽  
Pre Treatment ◽  
Mean Differences

Abstract Broccoli was direct seeded into double-row beds on 21 Sep at the Yuma Valley Agricultural Center, Yuma, AZ. Each plot consisted of four, 30 ft long beds spaced 42 inches apart and bordered on each side by an untreated bed. Plots were arranged in a CRB design with 4 replicates. Foliar applications were made on 30 Oct and 4 Nov with a hand-held CO2 sprayer operated at 50 psi, delivering 20 gpa. Spreader-sticker (Kinetic) was included in all spray treatments at a rate of 0.125% of the total volume. Insecticide efficacy was determined by counting the total number of small (1 st and 2nd instars) and large (>2nd instar) CL larvae on 5 randomly selected broccoli plants per replicate. A pre-treatment sample was taken on 29 Oct and evaluations were made 5 DAT on 4 and 9 Nov. Data were analyzed as a 1-way ANOVA using a protected LSD F test to distinguish treatment mean differences.

scholarly journals Efficacy of Pyrethroids and Lannate on Lepidopterous Larvae in Lettuce, 1995

1996 ◽  
Vol 21 (1) ◽  
pp. 124-124
Author(s):  
J. C. Palumbo
Keyword(s):  
F Test ◽  
Double Row ◽  
Insecticide Efficacy ◽  
Direct Seeded

Abstract Lettuce was direct seeded into double-row beds on 9 Sep at the Yuma Valley Agricultural Center, Yuma, Az. Each plot consisted of four, 30 ft long beds spaced 42 inches apart and bordered on each side by an untreated bed. Plots were arranged in a RCB design with 4 replicates. Foliar applications were made on 22 and 30 Sep and with a hand-held CO2 sprayer operated at 60 psi, delivering 20 gal/acre. Spreader-sticker (Kinetic) was included in all spray treatments at a rate of 0.25% of the total volume. Insecticide efficacy was determined by counting the total number of small (1st and 2nd instars) and large (>2nd instar) BAW and CL larvae on 20 randomly selected lettuce plants per replicate. Insect counts were conducted the day of application, 22 and 30 Sep, and at 3 days after treatment, 30 Sep and 3 Oct. Treatment differences among means were estimated with the Ryan-Einot-Gabriel-Welsch multiple F test.

A potential retardant for lodging resistance in direct seeded rice (Oryza sativa L.)

2012 ◽  
Vol 92 (1) ◽  
pp. 13-18 ◽  
Author(s):  
Uma Rani Sinniah ◽  
Sri Wahyuni ◽  
Bambang Surya Adji Syahputra ◽  
Saikat Gantait
Keyword(s):  
Oryza Sativa ◽  
Cell Walls ◽  
Foliar Application ◽  
Oryza Sativa L ◽  
Parenchyma Cell ◽  
Growth Retardant ◽  
Lodging Resistance ◽  
Bending Resistance ◽  
Stem Bending ◽  
Direct Seeded

Sinniah, U. R., Wahyuni, S., Syahputra, B. S. A. and Gantait, S. 2012. A potential retardant for lodging resistance in direct seeded rice ( Oryza sativa L.). Can. J. Plant Sci. 92: 13–18. Yield losses in rice are heavy, particularly when lodging occurs after heading. A major contributing factor towards lodging is the tall phenotypic characteristic of the plant. In rice, application of growth retardant can reduce plant height by means of internode retardation. In this study, paclobutrazol at 50, 100 and 200 ppm was applied as a foliar application at panicle initiation on MR 219 and MR 84 cultivars and its effects on growth, lodging resistance and yield were studied. Foliar-applied growth retardant inhibited plant growth and retarded internode and culm length but increased culm diameter. All treated plants had higher bending resistance compared with the control. A significant positive correlation was observed between increased culm diameter and stem bending resistance (r=0.885). Histological studies showed greater compaction of parenchyma cells with thickening of parenchyma cell walls. Treatments with either 50 or 100 ppm paclobutrazol gave significant retardation of internodes and gave higher stem bending resistance with significant increase in yield.

EFFECT OF QUITOMAX® ON THE INDICATORS OF GROWTH, PHENOLOGY AND YIELD OF COWPEA (Vigna unguiculata L.)

Biotecnia ◽  
2018 ◽  
Vol 21 (1) ◽  
pp. 109-112
Author(s):  
Juan José Reyes-Pérez ◽  
Miguel Ángel Ramírez-Arrebato ◽  
Aida Tania Rodríguez-Pedroso ◽  
Liliana Lara-Capistrán ◽  
Luis Guillermo Hernández-Montiel
Keyword(s):  
Experimental Design ◽  
Foliar Application ◽  
Agricultural Practices ◽  
Growth And Yield ◽  
Double Row ◽  
Promising Alternative ◽  
Beginning Of Flowering ◽  
Agricultural Yield ◽  
Chemical Pesticides ◽  
Phenological Phases

The application of biostimulant in agricultural practices is a promising alternative to the use of chemical pesticides that harm the health of man and the environment. The objective of this work was to evaluate the effect of the foliar application of the biostimulant Quitomax at concentrations of 200, 400, and 600 mg·ha-1 on some phenological phases of cowpea plants, as well as indicators of growth and agricultural yield of this legume. The sowing was done directly, in a double row with a planting frame of 0.70 x 0.40 m on a bio-fertilizer substrate and sandy soil. The application of Quitomax was carried out at the beginning of flowering. A randomized block experimental design with four replicates per treatment was used. The growth indictors, length and diameter of the pods, pods by plants, fresh pod mass and grains by pods, as well as the yield were evaluated. It was found that the highest concentration of Quitomax applied 600 mg. ha-1 produced significantly cowpea plants with higher growth and yield indicators than the rest of the treatments.

scholarly journals Evaluation of Experimental Compounds for Leafminer Control on Lettuce, 1996

1998 ◽  
Vol 23 (1) ◽  
pp. 107-108
Author(s):  
J. C. Palumbo ◽  
F. J. Reyes
Keyword(s):  
F Test ◽  
Insecticide Efficacy ◽  
University Of Arizona ◽  
Recorded Data ◽  
Direct Seeded ◽  
Mean Differences ◽  
The University ◽  
One Way Anova

Abstract Lettuce was direct seeded on 13 Sep. at the University of Arizona Yuma Agricultural Center. Each plot consisted of four, 60-ft-long beds spaced 42 inches apart and bordered on each side by 2 untreated beds. Plots were arranged in a CRB design with 4 replicates. Prior to application of treatments, a Lannate (0.75 lb (AI)/acre) and Karate (0.3 lb (AI)/acre) spray was applied to all plots on 27 Sep to control lepidopterous larvae. Foliar treatments were applied on 10 and 17 Oct with a tractor drawn sprayer operated at 150 psi, delivering 45 gpa. No spreader-sticker was added to any of the spray treatments. Insecticide efficacy was determined by randomly selecting 10 lettuce plants in each replicate and placing them in emergence containers for 3-4 weeks to allow for pupation and emergence of liriomyza and parasitoid adults. Adults were counted and their species recorded. Data were analyzed as a one-way ANOVA using a protected LSD F test to distinguish treatment mean differences.

scholarly journals Efficacy of Selected Insecticides for Control of Cabbage Looper in Cauliflower

1997 ◽  
Vol 22 (1) ◽  
pp. 116-116
Author(s):  
J. C. Palumbo
Keyword(s):  
Cabbage Looper ◽  
F Test ◽  
Insecticide Efficacy ◽  
Direct Seeded ◽  
Mean Differences

Abstract Cauliflower was direct seeded into on 21 Sep at the Yuma Valley Agricultural Center, Yuma, Az. Each plot consisted of four, 30-ft-long beds spaced 42 inches apart and bordered on each side by two untreated beds. Plots were arranged in a CRB design with 4 replicates. Foliar applications were made on 10 and 14 Oct with a hand-held CO2 sprayer operated at 50 psi, delivering 20 gpa. Spreader-sticker (Kinetic) was included in all spray treatments at a rate of 0.125% of the total volume. Insecticide efficacy was determined by counting the total number of small (1 st and 2nd instars) and large (>2nd instar) CL on 5 randomly selected plants replicate. Data were analyzed as a 1-way ANOVA using a protected LSD F test (P = 0.05) to distinguish treatment mean differences.

scholarly journals Evaluation of Insecticides for Control of Lepidopterous Larvae in Lettuce, 1994

1995 ◽  
Vol 20 (1) ◽  
pp. 93-93
Author(s):  
J. C. Palumbo
Keyword(s):  
Block Design ◽  
Hollow Cone ◽  
Double Row ◽  
Randomized Block Design ◽  
Direct Seeded

Abstract Lettuce was direct seeded into double-row beds on 12 Sep at the Yuma Valley Agricultural Center, Yuma, AZ. Plots consisted of four, 45 ft long beds spaced 42 inches apart and bordered on each side by two unplanted beds. Plots were arranged in a completely randomized block design with 4 replicates. Foliar treatments were applied on 7 and 12 Oct with a CO2-powered backpack sprayer with a two-bed boom, having one nozzle per row (TX 12 hollow cone), and delivering 20.5 gal/acre at 40 psi. Latron CS-7 spreader-sticker was applied at 0.125% v/v with all treatments. Evaluations were made on 7, 12, and 17 Oct by selecting 15 plants per replicate, removing all leaves, and counting the total number of small (1st and 2nd instars) and large (>2nd instar) BAW, CL and TBW live larvae. Data were analyzed for treatment differences using ANOVA and a protected LSD.

scholarly journals Evaluation of Aphid Control in Lettuce with Admire Applied Through Drip Irrigation

1997 ◽  
Vol 22 (1) ◽  
pp. 137-137 ◽  
Author(s):  
J. C. Palumbo ◽  
C. H. Mullis ◽  
F. J. Reyes
Keyword(s):  
Drip Irrigation ◽  
Sprinkler Irrigation ◽  
F Test ◽  
Double Row ◽  
Stand Establishment ◽  
Aphid Control ◽  
Direct Seeded ◽  
Plant Data ◽  
Mean Differences ◽  
Overhead Sprinkler

Abstract Lettuce was direct seeded on 29 Nov at the Yuma Valley Agricultural Center, Yuma, AZ. into double row beds on 42 inch centers and stand establishment achieved using overhead sprinkler irrigation. Subsequent irrigations and chemigations were made with sub-surface (6-8”) drip irrigation. Plots consisted of 4 beds, 50 feet long with a two bed buffer between the plots. Plots were arranged in a RCB design with four replications. The four Admire 2F chemigation treatments were applied once 54 d after planting (23 Jan) through the drip system during the last hour of the irrigation run. The two Metasystox-R chemigation treatments were applied through the drip three times on 23 Jan, 1 and 8 Feb. The foliar Metasystox-R + Capture treatment was applied at 60 PSI in 20 gpa total volume on 23 Jan, 1 and 8 Feb. Insect data were collected only from the inner two beds of each plot. Aphid densities were estimated bi-weekly by sampling 10 plants per replicate and counting the total number of aphids per plant. Data were analyzed as a 1-way ANOVA using a protected LSD F test to distinguish treatment mean differences.

scholarly journals ​Influence of Inorganic Nutrients and Panchagavya on Growth Attributes of Direct Seeded Rice

2021 ◽  
Author(s):  
M. Sai Kumar ◽  
M. Sarvana Perumal ◽  
G. Murugan ◽  
M. Vikram Sai ◽  
B. Maheswara Reddy
Keyword(s):  
Foliar Application ◽  
Block Design ◽  
Inorganic Nutrients ◽  
Area Index ◽  
Factor B ◽  
Modern Agriculture ◽  
Randomized Block Design ◽  
Direct Seeded ◽  
Growth Attributes

Background: Panchagavya is an organic formulation made from cow goods. The usage of fermented organic formulation with supportive beneficial microorganisms as foliar nourishment has come into the picture of modern agriculture for giving raise to good quality of non-residue protected food. Methods: A field experiment was conducted from June to October 2020 at Farmer’s field to study the Influence of Inorganic nutrients on Panchagavya on growth attributes of direct seeded Rice (BPT 5204). The experiment was laid out in a Factorial randomized block design in which factor A consists of Inorganic nutrients and Factor B consists of Panchagavya at different doses and time of applications. Factor A consists of viz., A1 100% RDF, A2 75% RDF and A3 50% RDF and Factor B consists of B1 No spraying, B2 Panchagavya 3% Spraying at 15, 30 and 45 DAS, B3 Panchagavya 3% Spraying at 10, 20, 30 and 45 DAS, B4 Panchagavya 4% Spraying at 15, 30 and 45 DAS B5 Panchagavya 4% Spraying at 10, 20, 30 and 45 DAS. Result: The results of the study revealed that the application of 100% Inorganic nutrients along with the foliar application of Panchagavya @ 4% at 4 times spraying showed the highest plant height, Number of effective tillers and leaf area index.

Sign in / Sign up

Export Citation Format

Share Document