The common lowbush blueberry, Vaccinium angustifolium Aiton, may be an allopolyploid

1993 ◽  
Vol 73 (3) ◽  
pp. 889-891 ◽  
Author(s):  
K. Hokanson ◽  
J. Hancock
Keyword(s):  
Key Words ◽  
Goodness Of Fit ◽  
Chi Square ◽  
Vaccinium Angustifolium ◽  
Tetrasomic Inheritance ◽  
Lowbush Blueberry ◽  
Disomic Inheritance ◽  
The Common ◽  
Chi Square Tests

Data collected by Hall and Aadlers (1963) on the white-fruited trait were used to determine whether Vaccinium angustifolium is an allopolyploid displaying disomic inheritance or an autopolyploid with tetrasomic inheritance. Chi square tests for goodness-of-fit were non-significant for both models in all crosses, but the probabilities were higher in two of them for tetrasomic inheritance. Key words: Tetrasomic inheritance, disomic inheritance, allopolyploidy

Response of lowbush blueberry (Vaccinium angustifolium) to hexazinone applied early in the fruiting year

2002 ◽  
Vol 82 (4) ◽  
pp. 781-783 ◽  
Author(s):  
K. I. N. Jensen ◽  
E. G. Specht
Keyword(s):  
Key Words ◽  
Weed Control ◽  
Corolla Tube ◽  
Growth Stages ◽  
Vaccinium Angustifolium ◽  
Floral Buds ◽  
Perennial Weeds ◽  
Lowbush Blueberry ◽  
Herbaceous Perennial

Spring application of 1.0 kg ha-1 hexazinone to fruiting-year lowbush blueberry no later than the F3 floral stage, when floral buds separate, but before the corolla tube shows white, controlled some common herbaceous perennial weeds without injury to the crop. Key words: Herbicide injury, growth stages, weed control, hexazinone, Vaccinium angustifolium

Spring frost damage to placental tissues in lowbush blueberry flower buds

2001 ◽  
Vol 81 (4) ◽  
pp. 779-781 ◽  
Author(s):  
A. Randall ◽  
Olson and Leonard J. Eaton
Keyword(s):  
Key Words ◽  
Fruit Set ◽  
Frost Damage ◽  
Full Bloom ◽  
Flower Buds ◽  
Vaccinium Angustifolium ◽  
Spring Frost ◽  
Lowbush Blueberry ◽  
Commercial Yield ◽  
Spring Frosts

Closed flower buds and flowers at full bloom of Vaccinium angustifolium Ait. were collected from the field and histologically examined after severe spring frosts. Prior to anthesis, blackened ovarian placentae in closed buds were the only damaged tissues evident; placental damage may interfere with both seed and fruit set. Undetected frost damaged placentae may contribute to losses in commercial yield. Key words: Vaccinium, frost damage, placenta

The gynoecial infection pathway of Monilinia vaccinii-corymbosi in lowbush blueberry (Vaccinium angustifolium)

1996 ◽  
Vol 76 (3) ◽  
pp. 493-497 ◽  
Author(s):  
T. C. Shinners ◽  
A. R. Olson
Keyword(s):  
Key Words ◽  
Pollen Tubes ◽  
Fungal Colonization ◽  
Vaccinium Angustifolium ◽  
Stigmatic Surface ◽  
Lowbush Blueberry ◽  
Fruit Wall ◽  
Brightfield Microscopy ◽  
Infection Pathway

Monilinia vaccinii-corymbosi (Reade) Honey is an economically important pathogen of lowbush blueberry (Vaccinium angustifolium Aiton) which causes blighting of leaves and flowers and mummification of fruits. This study was conducted to determine if infection of lowbush blueberry gynoecia occurs through colonization of the stigma. Sections of gynoecia inoculated with conidia were examined by brightfield microscopy. Conidia germinated on the stigmatic surface 1–3 d following inoculation to form hyphae winch invaded the stylar canal and other tissue down to the ovules. The infection pathway observed was identical to that of pollen tubes following pollination. After invasion of the ovary fungal colonization continued until the entire fruit wall was colonized with mycelium. Key words: Mummy berry, stigma colonization, pseudosclerotium

Accumulation of copper and nickel in plant tissues and an insect gall of lowbush blueberry, Vaccinium angustifolium, near an ore smelter at Sudbury, Ontario, Canada

1991 ◽  
Vol 69 (7) ◽  
pp. 1483-1490 ◽  
Author(s):  
G. Bagatto ◽  
J. D. Shorthouse
Keyword(s):  
Key Words ◽  
Host Plant ◽  
Leaf Tissue ◽  
Primary Site ◽  
Root Tissue ◽  
Plant Tissues ◽  
Vaccinium Angustifolium ◽  
Copper Nickel ◽  
Lowbush Blueberry ◽  
Insect Gall

The accumulation of copper and nickel in plant tissues and galls of Hemadas nubilipennis on lowbush blueberry near an ore smelter at Sudbury, Ontario, was investigated. Concentrations of these metals in the root, stem, and leaf tissue decline logarithmically with increasing distance from the Sudbury smelter. The pattern of accumulation for copper and nickel in the various tissues was root > stem > leaf > berry; however, metal differences in these tissues were not as great in plants farther from the smelter. The root tissue is the primary site of accumulation of these metals when environmental levels of copper and nickel are high. The highest concentrations of copper and nickel were found in the galls, indicating that gall tissues act as a strong physiological sink for micronutrients and redirect nutrients from the host plant. Key words: Vaccinium angustifolium, copper, nickel, gall, Sudbury.

Mineral concentrations within cells of galls induced by Hemadas nubilipennis (Hymenoptera: Pteromalidae) on lowbush blueberry: evidence from cryoanalytical scanning electron microscopy

1994 ◽  
Vol 72 (9) ◽  
pp. 1387-1390 ◽  
Author(s):  
Giuseppe Bagatto ◽  
Joseph D. Shorthouse
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Key Words ◽  
Osmotic Potential ◽  
Larval Feeding ◽  
Vaccinium Angustifolium ◽  
Lowbush Blueberry ◽  
Insect Gall ◽  
Mineral Concentrations ◽  
Scanning Electron

Cryoanalytical scanning electron microscopy was used to examine cellular concentrations of K, P, S, Mg, Ca, Fe, Cu, Ni, and Au in a planed section of an insect gall induced by Hemadas nubilipennis on shoots of lowbush blueberry. Levels of K varied throughout tissues of the gall, with the highest levels within the cytoplasmically dense nutritive cells lining the larval chambers, storage nutritive cells, and peridermal cells. It is postulated that K increases the osmotic potential and size of nutritive cells, thereby facilitating larval feeding. Nutritive cells also contained elevated levels of P and S. Levels of Cu, Ni, Fe, and Au were elevated in epidermal tissues, especially near the stomata. Key words: gall, blueberry, minerals, cryoanalytical SEM, Hemadas nubilipennis, Vaccinium angustifolium.

scholarly journals Independent Inheritance of Leaf Shape and Main Vein Color in Caladium

2006 ◽  
Vol 131 (1) ◽  
pp. 53-58 ◽  
Author(s):  
Zhanao Deng ◽  
Brent K. Harbaugh
Keyword(s):  
Goodness Of Fit ◽  
Leaf Shape ◽  
Dominance Order ◽  
Chi Square ◽  
Breeding Lines ◽  
Segregation Data ◽  
Plant Growth Habit ◽  
Tests For Independence ◽  
Main Vein ◽  
Chi Square Tests

The ornamental value of caladium (Caladium ×hortulanum Birdsey) depends primarily on leaf characteristics, including leaf shape and main vein color. Caladium leaf shapes are closely associated with plant growth habit, stress tolerance, and tuber yield; leaf main vein colors are often used for cultivar identification. Thirty-eight crosses were made among 10 cultivars and two breeding lines; their progeny were analyzed to understand the inheritance of leaf shape and main vein color and to determine if there is a genetic linkage between these two traits. Results showed that a single locus with three alleles determined the main vein color in caladium. The locus was designated as V, with alleles Vr, Vw, and Vg for red, white, and green main veins, respectively. The white vein allele was dominant over the green vein allele, but it was recessive to the red vein allele, which was dominant over both white and green vein alleles; thus the dominance order of the alleles is Vr > Vw > Vg. Segregation data indicated that four major red-veined cultivars were heterozygous with the genotype Vr Vg, and that one white-veined cultivar was homozygous and one other white-veined cultivar and one breeding line were heterozygous. The observed segregation data confirmed that the three leaf shapes in caladium were controlled by two co-dominant alleles at one locus, designated as F and f, for fancy and strap leaves, respectively. The skewedness of leaf shape segregation in some of the crosses implied the existence of other factors that might contribute to the formation of leaf shape. Contingency chi-square tests for independence revealed that caladium leaf shape and main vein color were inherited independently. The chi-square tests for goodness-of-fit indicated that the five observed segregation patterns for leaf shape and main vein color fit well to the expected ratio assuming that two co-dominant and three dominant/recessive alleles control leaf shape and main vein color and they are inherited independently.

Effect of sawdust mulch on yields of select clones of lowbush blueberry

1991 ◽  
Vol 71 (4) ◽  
pp. 1263-1266 ◽  
Author(s):  
K. R. Sanderson ◽  
J. A. Cutcliffe
Keyword(s):  
Key Words ◽  
Prince Edward Island ◽  
Total Yield ◽  
Vaccinium Angustifolium ◽  
Plant Survival ◽  
Berry Weight ◽  
Lowbush Blueberry ◽  
Significant Difference

The effect of sawdust mulch applied at 0-, 5- and 10-cm depths on yield of select clones of lowbush blueberry (Vaccinium angustifolium Ait.) was studied in Prince Edward Island for three consecutive cropping cycles from 1985 to 1989. Sawdust applied post-plant, as a mulch, at a depth of 5 cm increased the total yield of the first three harvests by approximately 30% compared to the 0-cm mulch. Mean berry weight was also increased where sawdust was applied. There was not significant difference in yield between the 0- and 10-cm sawdust application treatments. The 10-cm sawdust mulch reduced plant survival by 23% compared with the check. Key words: Lowbush blueberry, Vaccinium angustifolium Ait., select clone, sawdust mulch, yield

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