Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Boyett Graves"'
Publikováno v:
HortScience. 34:711-714
One hundred U.S. sweetpotato [Ipomoea batatus (L.) Lam.] plant introductions (PIs) and four control cultivars were screened for insect injury in 1993. Of the least injured by insects, 56 and 31 were tested again in 1994 and 1995, respectively. Among
Publikováno v:
Journal of the American Society for Horticultural Science. 119:620-623
Narrow-sense heritability for component traits of freedom from weevil injury and yield of sweetpotato were estimated by parent-offspring regression and variance component analysis. Heritability estimates by variance component analysis based on half-s
Publikováno v:
HortScience. 36:997-998
Received for publication 14 Aug. 2000. Accepted for publication 27 Dec. 2000. Journal Article No. 9726 of the Mississippi Agricultural and Forestry Experiment Station, Mississippi State Univ. We thank the International Institute of Tropical Agricultu
Publikováno v:
HortScience. 32:499A-499
The sweetpotato weevil is the most-destructive worldwide pest of sweetpotato and only low to moderate levels of resistance to the insect are available in acceptable cultivars. No sources of high resistance levels have been identified; consequently, t
Publikováno v:
HortScience. 30:442a-442
One hundred plant introductions (PIs) were evaluated for sweetpotato-weevil resistance in experiment station field trials for 2 years in Beaumont, Miss. Weevil infestation was accomplished by applying adult weevils in year 1 and weevil infested roots
Publikováno v:
HortScience. 29:727e-727
Twenty-four half-sib sweetpotato families were field tested for freedom from injury by sweetpotato weevil and other soil inhabiting, injurious insects (WDS). Three pairs of adult male and female weevils were applied to the crown of each plant at the
Publikováno v:
HortScience. 29:495e-495
One hundred one accessions from the U.S. germplasm collection were evaluated in field trials for sweetpotato weevil resistance. Weevils were collected from 4 separate Mississippi locations during the winter of 1992-93. They were increased in culture
Publikováno v:
HortScience. 28:261E-261
Narrow-sense heritabilities (h2) for sweetpotato weevil (Cylas formicarius elegantulus) resistance were estimated in 2 breeding populations. Population A included clones from US programs with previously reported moderate levels of weevil resistance.
Publikováno v:
HortScience. 26:493d-493
A breeding population including parents with known moderate levels of weevil resistance was evaluated for resistance in a field experiment with few naturally occurring weevils. Weevils were collected from several Mississippi locations and intermated
Publikováno v:
Energy in Agriculture. 4:319-330
Several potential fuelcrops have been studied individually, but relatively little work has been done to compare the various temperate species in side-by-side trials. In this study, we have examined the production of readily fermentable carbohydrates