scholarly journals Field Evaluation of Sorghum Midge-Resistant Sorghum Hybrids, 1993

1995 ◽  
Vol 20 (1) ◽  
pp. 366-367
Author(s):  
George L. Teetes ◽  
Roger M. Anderson ◽  
Bonnie B. Pendleton
Keyword(s):  
Field Evaluation ◽  
Field Trials ◽  
Kernel Weight ◽  
Agricultural Experiment Station ◽  
Sorghum Midge ◽  
Corpus Christi ◽  
Agricultural Experiment ◽  
College Station ◽  
Extension Center ◽  
Analyze Data

Abstract Seventeen F, sorghum hybrids of released and experimental parental lines arranged in a RCB design with 3 replications were evaluated for resistance to sorghum midge (SM) in duplicated field trials at the Texas Agricultural Experiment Station at College Station, TX and at the Texas A&M University Research and Extension Center at Corpus Christi, TX. Seed was sown 14 May in rows spaced 30 inches (76.2 cm) apart and 5 Apr in rows spaced 38 inches (96.5 cm) apart at College Station and Corpus Christi, respectively. Yield and damage ratings were used to evaluate hybrids of resistant by resistant parents, and resistant by susceptible parents, compared with hybrids of susceptible by susceptible parents. At College Station, 100-kernel weight also was determined. Rating of damage caused by SM was done at sorghum kernel physiological maturity where 1 = 1-10, 2 = 11-20, to 9 = 81-100% kernel loss. Panicles from plots were hand harvested (0.0025 ha) and threshed by using a stationary plot thresher. Grain yield was calculated by converting grain weight to kg/ha. ANOVA and LSD at the 0.05 probability level were used to analyze data.

Field evaluation of barley (Hordeum vulgare L.) genotypes derived from tissue culture

1992 ◽  
Vol 72 (3) ◽  
pp. 725-733 ◽  
Author(s):  
A. M. R. Baillie ◽  
K. K. Kartha ◽  
B. G. Rossnagel
Keyword(s):  
Tissue Culture ◽  
Hordeum Vulgare ◽  
Somaclonal Variation ◽  
Heading Date ◽  
Field Evaluation ◽  
Weight Percent ◽  
Field Trials ◽  
Kernel Weight ◽  
Small Scale ◽  
Hordeum Vulgare L

Somaclonal variation has been observed in plants derived via tissue culture in a number of crops, but evaluation has been on a small scale. This study was conducted to evaluate 72 tissue culture-derived barley (Hordeum vulgare L.) genotypes for somaclonal variation in replicated small-plot field trials. Twenty putative somaclones from the cultivar Abee, 20 from Deuce, 15 from Duke and 17 from Heartland were evaluated at three Saskatchewan locations during 1989. Little variation was observed between regenerants and their respective parent cultivars for days to head, height, yield and yield components. When variation did occur it was generally of negative value, i.e., later heading date; lower test weight, 1000-kernel weight, percent plumpness and yield. Of the four groups, those from Deuce and Duke exhibited the most variation. A 5-d difference in heading date was observed for one Duke derivative and 18 of the 20 Deuce derivatives were shorter than the Deuce control. From this study, it was concluded that somaclonal variation would be of no benefit in a plant-breeding program.Key words: Barley, field evaluation, tissue culture, Hordeum vulgare L.

scholarly journals Evaluation of Insecticides for Suppression of Sorghum Midge on Sorghum, 1994

1995 ◽  
Vol 20 (1) ◽  
pp. 231-231
Author(s):  
R. M. Anderson ◽  
G. L. Teetes
Keyword(s):  
Grain Yield ◽  
Grain Sorghum ◽  
Agricultural Experiment Station ◽  
Hollow Cone ◽  
Yield Data ◽  
Sorghum Midge ◽  
Plastic Bags ◽  
Agricultural Experiment ◽  
Clear Plastic ◽  
Spray Volume

Abstract Selected insecticides were evaluated for sorghum midge control at the Texas Agricultural Experiment Station Research Farm near College Station, TX. Hybrid grain sorghum (ATx399 × RTx430) was planted 20 May in rows spaced 30 inches apart. Insecticide treatments were compared in plots, 8 rows × 40 ft long, arranged in a RCB design with 4 replications. Insecticides were applied to the middle 2 rows of plots. Insecticides were applied between 0800 and 0900 hours CDT by using a hand-held backpack sprayer with TX-3 hollow cone nozzles at 35 psi, producing a finished spray volume of 5.6 gpa. Application began when 10-30% of the panicles were flowering; insecticides were applied 10, 13, and 16 Jul. Adult sorghum midge abundance was determined just prior to each application by counting the number of sorghum midges on 10 individual sorghum panicles enclosed in clear plastic bags. The panicles were cut from the plant and returned to the laboratory for examination and sorghum midge counts. Grain yield data were collected from the 2 middle rows per plot. Panicles were hand harvested from selected 8.75 ft sections of row/plot and mechanically threshed. Data were statistically analyzed by using ANOVA and LSD.

scholarly journals University of Florida Potato Variety Trials Spotlight: 'Red LaSoda'

EDIS ◽  
2021 ◽  
Vol 2021 (1) ◽  
Author(s):  
Mario H.M.L. Andrade ◽  
Lincoln Zotarelli ◽  
Rodrick Z. Mwatuwa ◽  
Christian T. Christensen ◽  
Doug Gergela ◽  
...  
Keyword(s):  
Potato Breeding ◽  
Agricultural Extension ◽  
Potato Breeding Program ◽  
Agricultural Experiment Station ◽  
Fresh Market ◽  
University Of Florida ◽  
Agricultural Experiment ◽  
A Minor ◽  
The University ◽  
Extension Center

‘Red LaSoda’ is a red-skinned fresh market potato standard for Florida. ‘Red LaSoda’ was first observed in 1949 as a deep red mutant of ‘LaSoda’, a progeny of ‘Triumph’ and ‘Katahdin’, in the Louisiana potato breeding program. ‘Red LaSoda’ was released by the USDA and the Louisiana Agricultural Experiment Station in 1953. Production and quality results provided here are summarized from various fresh-market trials conducted by the University of Florida’s Hastings Agricultural Extension Center from 1998 to 2019.This is a minor revision of HS323 with an added author, last updated 12/2016.https://edis.ifas.ufl.edu/hs323

NOTES

1902 ◽  
Vol 34 (12) ◽  
pp. 313-313
Keyword(s):  
Agricultural Experiment Station ◽  
Experiment Station ◽  
Agricultural Experiment ◽  
College Station

Mr. E. Dwight Sanderson, Entomologist of the Delaware Agricultural Experiment Station, Newark, Del., has been appointed Professor of Entomology at the Agricultural and Mechanical college of Texas. His address is now College Station, Brazos Co., Texas.

scholarly journals Insecticides to combat damage by Anthonomus eugenii Cano in pepper var. Cubanelle in Puerto Rico

1969 ◽  
Vol 78 (1-2) ◽  
pp. 23-31
Author(s):  
Arístides Armstrong
Keyword(s):  
Puerto Rico ◽  
Field Trials ◽  
Agricultural Experiment Station ◽  
Weekly Basis ◽  
Anthonomus Eugenii ◽  
Knapsack Sprayer ◽  
Pepper Weevil ◽  
Agricultural Experiment ◽  
Marketable Fruit ◽  
Fruit Formation

Two field trials were established (22 April 1985) at the Agricultural Experiment Station in Isabela to evaluate insecticides for the control of the pepper weevil, Anthonomus eugenii Cano, on pepper var. Cubanelle. The insecticides included in the first trial were permethrin 2E at 0.23 and 0.47 L/ha, oxamyl L at 2.34 and 4.68 L/ha, and fenvalerate 2.4 EC at 0.39 and 0.78 L/ha. In the second trial, only fenvalerate at the indicated rates was evaluated. A knapsack sprayer was used for all foliar applications. Insecticide applications were begun at fruit formation and were continued on a weekly basis. Efficacy was based on the number of fallen fruits per plot. Significant differences were obtained for fenvalerate (0.78 L/ha) with the lowest number of fallen fruits per plot (10.07) and 90% of control and 31% losses. With oxamyl at 4.68 L/ha, control reached 79% and the second lowest number of fallen fruits per plot (26%) with 38% losses. Permethrin was effective neither in controlling weevil damage nor in reducing losses.The best marketable fruit yield was obtained with oxamyl at 4.68 L/ha.

Sign in / Sign up

Export Citation Format

Share Document