. The 11 SSR primer pairs (PPs) used for varietal identification by Wang et al. (2010) and additional 35 SSR PPs [no. 12–46 ( Table 2 )] were selected based on the amplification efficiency and polymorphism from initial screening. PCR was conducted
Tilin Fang, Yanqi Wu, Shiva Makaju, Todd Tribble, Dennis L. Martin, and Justin Q. Moss
Paul Skroch and Jim Nienhuis
The genetic variation in a population of one hundred Snap Bean varieties, including processing and garden types, was studied using RAPD markers. All one hundred genotypes were distinguished by unique combinations of banding patterns. These unique “fingerprints” were tested for repeatability. Certain bands were very reliable and can be used for varietal identification. The RAPD marker data was also used to estimate genetic relationships among a subset of the one hundred lines. The results of the analysis agreed with known pedigree information. These markers will allow more precise monitering and control of germplasm by those who are involved with the breeding and production of superior seed.
D. Spaner, D.E. Mather, and R.A.I. Brathwaite
Three local varietal types of corn (Zea mays L.)—an improved landrace `ICTA Farm Corn' derived from the Tuson population, the open-pollinated `Across 7728', and the hybrid `Pioneer 3098'—were grown at three cash-crop farms in Trinidad, and evaluated as green corn for agronomic, quality, and chemical traits. `Pioneer 3098' and `ICTA Farm Corn' had similar numbers of marketable ears and marketable yield per hectare, and both were superior to `Across 7728'. Sensory evaluations revealed that the three varieties did not differ in overall quality when boiled with Creole seasoning. When ears were not seasoned, the hybrid variety was preferred over the two open-pollinated varieties. Two-dimensional partitioning indicated that ear appearance and kernel color were the major contributors to total variation in overall quality. The importance of quality characters of green corn to local farming system priorities affects extension recommendations and breeding objectives in Trinidad.
Wheeler G. Foshee III, Brad E. Reeder, Raymond J. Kessler Jr., Larry W. Wells, Joseph M. Kemble, Edgar L. Vinson, Robert T. Boozer, and William A Dozier Jr
Production of high tunnel tomatoes and snapdragons was evaluated over a 2-year period at the Wiregrass Experiment Station, in southeastern Alabama. `BHN 640', `Florida 91', `Sunleaper', and `Carolina Gold', were evaluated in early Spring 2004. Results indicated that `BHN 640' outperformed `Florida 91' and `Carolina Gold' in early production of high tunnel grown tomatoes. A late Fall 2005 study examined `BHN 640' and `Florida 91'. Results indicated that `BHN 640' was superior to `Florida 91' in total marketable fruit. Season extension of both spring and fall tomato production were accomplished. A planting date study was completed in the early Spring 2005. The following four planting dates were evaluated: 31 Jan., 17 Feb., 4 Mar., and 25. Mar 2005. Wind damage to the high tunnel caused some mortality; however, the two earliest planting dates (31 Jan. and 17 Feb. 2005) produced over 10 lbs. of marketable tomatoes per plant. These were both superior to the last planting date of 25 Mar 2005. Cut snapdragons were evaluated for suitable colored mulch (red, white, or blue) and varieties for summer (`Opus Yellow', `Opus Rose', `Monaco Red', and `Potomac Early White') and fall (`Apollo Purple', `Apollo Yellow', `Monaco Red', `Monaco Rose', and `Potomac Early Orange') production. Results indicated that inflorescence length was affected by the color of mulch. The red mulch had increased inflorescence length compared to the white in Summer 2005. The Fall 2005 study revealed that white mulch had longer inflorescence length than the red or blue mulch. Some varietal differences were observed. The `Apollo Purple' had longer stem lengths than all other varieties for the fall study. The summer study revealed that `Opus Yellow' had longer inflorescence lengths than all others but stem lengths were all similar.
Christine Coker, Mike Ely, and Thomas Freeman
Ethnicity plays a strong role in niche market development, and the Asian market is currently underserved. As Asian populations continue to grow in Mississippi, especially along the Gulf Coast, it is important to recognize new market opportunities. The fruit and vegetables desired by the diverse Asian population are often unavailable or of poor quality as a result of extensive shipping distances. Mississippi growers can meet this need for fresh Oriental produce at a higher price than traditional vegetables. Yardlong bean or asparagus bean (Vigna unguiculata ssp. sesquipedalis) is the same species as cowpea. The cultural practices for yardlong bean are similar to that of traditional pole beans (Phaseolus vulgaris). However, there is still much to be learned about this crop in terms of pest management, disease susceptibility, and varietal superiority. The objectives of this research were to compare length and yield of eight yardlong bean varieties and collect observational data regarding production practices. Four replications of eight yardlong bean varieties were grown at Beaumont, MS, during Summer 2001 and 2002. Beans were grown on 4-ft-wide trellises 1 ft above the soil line. Beans were harvested twice per week. Highest marketable yields were attained with the varieties Red Seed and Black Seed, which are best suited for growing conditions in southern Mississippi. However, mosaic viruses may pose a potential production problem, and further research is warranted to determine best cultural practices and pest management.
Nirmal K. Hedau, Shri Dhar, Vinay Mahajan, Pawan K. Agarwal, and Jagdish C. Bhatt
’. Performance A station replicated trial (pre-varietal trial) conducted at Hawalbagh, Almora (1250 m above sea level) under open-field inorganic conditions with four promising accessions during 2002–03 indicated that the fruit yield (31.75 t·ha −1 ) of ‘VTG 93
Nirmal K. Hedau, Shri Dhar, Vinay Mahajan, Hari S. Gupta, Karambir S. Hooda, and Vedprakash
. Because of its superiority over the popular cultivars in the prevarietal trial, it was proposed for State Varietal Trials–Vegetable Crops (SVT-VC) of Uttarakhand India. ‘VL Bean 2’ along with checks were evaluated in SVT-VC from 2002 to 2005 at Hawalbagh
Hae Keun Yun, Kyo Sun Park, Jeong Ho Roh, Yong Bum Kwack, Ji Hae Jun, Seok Tae Jeong, Seung Hui Kim, Han Ik Jang, and Yong Uk Shin
-rooted vines of ‘Suok’ grape were cultivated in the vineyard, they were not infested with phylloxera owing to low risk for natural attacks by them in the soil in Korea. ‘Suok’ is a table grape with large berries, which produce fruits with pronounced varietal
James D. McCurdy, J. Scott McElroy, and Elizabeth A. Guertal
yielded 499, 502, and 513 trifoliate leaves/m 2 , respectively. Normally maintained turfgrass (3.8-cm mowing height) yielded significantly lower white clover densities (279 trifoliate leaves/m 2 ). Varietal differences were not detected during the Season 1
Sudhakar Pandey, Mathura Rai, H.C. Prasanna, and G. Kalloo
other cultivars. The new variety is comparable to other popular cultivars in India in terms of general horticultural traits such as length, diameter, weight, number, and yield of fruit ( Table 1 ). Because of its superiority over the popular cultivars at