Patterns of seed weight distribution and germination with time in a weedy biotype of proso millet (Panicum miliaceum)

1992 ◽  
Vol 70 (3) ◽  
pp. 562-567 ◽  
Author(s):  
Marguerite Kane ◽  
Paul B. Cavers
Keyword(s):  
Seasonal Variation ◽  
Key Words ◽  
Weight Distribution ◽  
Seed Weight ◽  
Common Garden ◽  
Growing Season ◽  
Panicum Miliaceum ◽  
Proso Millet ◽  
The Mean ◽  
Positional Effects

Three plants from each of 10 populations of the black biotype of proso millet (Panicum miliaceum) were grown in a common garden in London, Ontario. Seeds were collected from individual plants as they ripened. Each seed was identified as to location on the plant and weighed separately. Mean seed weight decreased over the growing season, both on individual inflorescences and on entire plants. Despite this trend, seeds at the upper end of the weight range were produced throughout the season. The decline in the mean resulted from an increasing proportion of smaller seeds. There was also increased variability in seed weight later in the growing season. In subsequent germination tests there was no discernable relationship between total percent viability and date of seed ripening. Total percent viability was above 70% for each sampling date. Key words: seed weight, positional effects, proso millet, germination, seasonal variation.

scholarly journals Disease reaction of different crops against virulent potato isolates of Rhizoctonia solani Kuhn

1970 ◽  
Vol 37 (1) ◽  
pp. 75-80 ◽  
Author(s):  
Md Maniruzzaman Khandaker ◽  
Abul Khair ◽  
Md Khurshed Alam Bhuiyan
Keyword(s):  
Rhizoctonia Solani ◽  
Key Words ◽  
Bottle Gourd ◽  
Panicum Miliaceum ◽  
Disease Symptoms ◽  
Disease Reaction ◽  
Proso Millet ◽  
Bush Bean ◽  
Crop Types

A total of 33 hosts from different crop types viz. cereal, pulse, oil, vegetable and fiber plants were tested for pathogenicity in artificially inoculated condition against two isolates (BTB115 and DK64) of Rhizoctonia solani, virulent to potato. In respect of symptoms developed on the stems, the most susceptible hosts against both the isolates were string bean, bottle gourd, groundnut, pea and pumpkin. Soybean stems were highly susceptible to DK64 and less susceptible to BTB115. Disease symptoms did not develop on stems of five crops namely brinjal, proso millet (Panicum miliaceum L.), stem-amaranth, kangkong (Ipomoea reptans L.) and tomato. Symptoms appeared on leaves of all the crops tested. Leaves of groundnut, bush bean, bottle gourd and okra were highly susceptible while those of barley and millet were less susceptible.   Key words: Rhizoctonia solani, Virulent, Pathogenecity, Crop hosts doi:10.3329/bjb.v37i1.1567 Bangladesh J. Bot. 37(1): 75-80, 2008 (June)

Effects of Temperature and Photoperiod on Texas Panicum (Panicum texanum) and Wild Proso Millet (Panicum miliaceum)

Weed Science ◽  
1986 ◽  
Vol 34 (6) ◽  
pp. 876-882 ◽  
Author(s):  
David T. Patterson ◽  
Ann E. Russell ◽  
David A. Mortensen ◽  
Robert D. Coffin ◽  
Elizabeth P. Flint
Keyword(s):  
United States ◽  
Vegetative Growth ◽  
Dry Matter ◽  
Dry Weight ◽  
Growing Season ◽  
Southern United States ◽  
Panicum Miliaceum ◽  
Proso Millet ◽  
Effects Of Temperature ◽  
Total Dry Weight

Texas panicum (Panicum texanumBuckl. # PANTE) is a native of the Southwest, now increasing as a weed throughout the southern United States, whereas wild proso millet (Panicum miliaceumL. # PANMI) is an introduced weed currently increasing in importance in the northern Midwest. In controlled-environment chambers, both species produced more tillers, greater leaf area, and more total dry weight at 30/24 C day/night (simulated growing season temperature in Georgia) than at 24/18 C (simulated growing season temperature in Minnesota). Texas panicum accumulated more dry matter at 30/24 C than did wild proso millet, while wild proso millet accumulated more dry matter at 24/18 C than did Texas panicum. When the two species were grown together, Texas panicum was the superior competitor at 30/24 C while wild proso millet was superior at 24/18 C. Exposure to short photoperiods at an intermediate temperature of 27/21 C accelerated flowering and limited vegetative growth in both species. In the range of photoperiods (10 to 16 h) examined, wild proso millet always flowered earlier and, consequently, produced less vegetative growth than Texas panicum. Its responses to temperature and photoperiod indicate that wild proso millet probably would be competitively inferior to Texas panicum and other adapted grass weeds in the southern United States.

Genetic diversity of yellow birch seedlings in Michigan

1977 ◽  
Vol 55 (22) ◽  
pp. 2778-2788 ◽  
Author(s):  
Kenneth A. Wearstler Jr. ◽  
Burton V. Barnes
Keyword(s):  
Seed Weight ◽  
Appalachian Mountains ◽  
Common Garden ◽  
Growing Season ◽  
Germination Percentage ◽  
Betula Alleghaniensis ◽  
Yellow Birch ◽  
Genetic Differentiation Of Populations ◽  
Physiographic Regions ◽  
Germinating Seeds

The objective of the study was to determine genetic differentiation of populations of yellow birch (Betula alleghaniensis Britton) along ecological gradients in Michigan and the Appalachian Mountains. Seeds were collected from populations in each of six physiographic regions of Michigan and in the northern and southern Appalachian Mountains. Seedlings were grown in a common garden in southeastern Michigan. First-year height of progeny, seed weight, initial germination, and germination percentage for 141 yellow birch trees in 30 populations were determined and compared.Significant differences were found among the six Michigan regions for all characters. Strong south–north clinal trends of decreasing height, increasing seed weight, earlier initial germination, and increasing total germination were revealed. Comparisons between physiographic regions showed that tall seedlings were produced by relatively light, late-germinating seeds. Within each region, however, seedlings from earlier germinating seeds tended to exhibit greater height growth. Significant differences were found among populations within a given region for specific characters. In the Appalachian Mountains, southern populations had taller progeny and lighter and poorer germinating seeds than northern populations.Regressions relating each character to 13 site variables were computed. Variation in total height and initial germination were interpreted as the result of differences in the length of the growing season associated with changes in elevation, terrain type, and aspect. Variation in seed weight was associated with differences in the length of growing season and soil moisture regimes.

Wild Proso Millet (Panicum miliaceum) Control in Processing Peas (Pisum sativum) and Soybeans (Glycine max)

Weed Science ◽  
1982 ◽  
Vol 30 (4) ◽  
pp. 365-368 ◽  
Author(s):  
Gregory R. Mcnevin ◽  
R. Gordon Harvey
Keyword(s):  
Glycine Max ◽  
Pisum Sativum ◽  
Plant Density ◽  
Growing Season ◽  
Field Studies ◽  
Growth And Yield ◽  
Panicum Miliaceum ◽  
Proso Millet ◽  
High Plant Density ◽  
Dinitroaniline Herbicides

Field studies in 1978 and 1979 evaluated the effectiveness of single and combination herbicide treatments in processing peas (Pisum sativumL.) and soybeans [Glycine max(L.) Merr.] for the control of wild proso millet (Panicum miliaceumL.). Eight treatments that included dinitroaniline herbicides controlled wild proso millet adequately through the entire growing season of the early-planted peas (approximately 60 days). Wild proso millet emergence and growth in untreated peas was suppressed by the early emergence, rapid growth, and high plant density of the drill-planted crop. Trifluralin (α,α,α-trifluoro-2,6-dinitro-N,N-dipropyl-p-toluidine) at 0.8 kg/ha stunted pea growth and was the only treatment that reduced yields significantly. No herbicide treatment evaluated in soybeans controlled wild proso millet adequately for the entire growing season without reducing soybean growth and yield. Treatments containing dinitroaniline herbicides, which controlled wild proso millet in peas and resulted in good yield, did not perform similarly in soybeans.

Proso Millet (Panicum miliaceum) Tolerance to Several Postemergence Herbicides

1993 ◽  
Vol 7 (1) ◽  
pp. 230-233 ◽  
Author(s):  
Drew J. Lyon ◽  
David D. Baltensperger
Keyword(s):  
Moisture Content ◽  
Grain Yield ◽  
Plant Height ◽  
Seed Weight ◽  
Panicum Miliaceum ◽  
Early Season ◽  
Proso Millet ◽  
Herbicide Treatments ◽  
Yield Test ◽  
Postemergence Herbicides

The tolerance of two proso millet cultivars to atrazine preemergence and postemergence applications of bromoxynil, clopyralid, dicamba, or metsulfuron plus amine formulations of 2,4-D was studied in the field. Proso millet grain yield, test weight, seed weight, moisture content, and plant height at harvest were not affected by any of the herbicide treatments, despite some early-season injury observed in 1990.

Growth and Development of Wild-Proso Millet (Panicum miliaceum) Biotypes

1990 ◽  
Vol 4 (2) ◽  
pp. 415-419 ◽  
Author(s):  
Charlotte V. Eberlein ◽  
Edith L. Lurvey ◽  
Timothy L. Miller ◽  
Janis L. Michael
Keyword(s):  
Leaf Area ◽  
Seed Production ◽  
Seed Dormancy ◽  
Growth And Development ◽  
Seed Weight ◽  
Reproductive Potential ◽  
Dry Weight ◽  
Field Studies ◽  
Panicum Miliaceum ◽  
Proso Millet

Growth and development of three wild-proso millet biotypes (Cambridge, LeSueur, and Morris) and one cultivated proso millet (‘Crown’) were compared under noncompetitive conditions in field studies. LeSueur and Cambridge were taller than Crown and Morris at maturity. All wild types had greater leaf area and dry weight at maturity than Crown. Crown headed earlier than the wild types, and among the wild types, Cambridge was slowest to mature. Seed production was 1.4 to 2 times greater for wild than cultivated proso millet, and averaged 48 000, 69 000, 83 000, and 94 000 seeds/plant for Crown, Cambridge, LeSueur, and Morris, respectively. Mean seed weight was 4.0 and 3.8 mg/seed for LeSueur and Morris, respectively, and 5.8 and 5.9 mg/seed for Crown and Cambridge, respectively. LeSueur and Morris seed shattered readily, but Cambridge seed shattered relatively little. Seed dormancy was greater in LeSueur and Morris than in Cambridge. Based on reproductive potential, shattering, and dormancy characteristics, LeSueur and Morris appeared to have more weedy characteristics than Cambridge.

KNOWLEDGE, ATTITUDE AND PRACTICES OF CARETAKERS AND HEALTH PROFESSIONALS TOWARD TEETHING IN INFANTS

2011 ◽  
pp. 52-59
Author(s):  
Binh Bao Son Bui
Keyword(s):  
Sleep Disturbance ◽  
Key Words ◽  
Breast Feeding ◽  
Health Professionals ◽  
Feeding Problems ◽  
Central Hospital ◽  
Pediatric Department ◽  
Correct Knowledge ◽  
The Mean

Objective and methods: a prospective questionnaire based study on 71 parents (caretakers) of consecutive children treated at the Pediatric Department, Hue Central Hospital and on 47 health professionals at the department was conducted from September until December 2009 to investigate the knowledge, attitude and practices of the caretakers, nurses and postgraduated doctors toward teething in infants. Results: Most responders believed that teething causes fever, irritability, feeding problems, drooling, biting, sleep disturbance, swollen gums, crying, lose of appetite for solids; and fever over 38oC was also believed to be associated with teething. The mean eruption time of the first tooth was from 6 months. Most caretakers had normal attitude to manifestations ascribed to teething (54.9%). The most common management to symptoms attributed to teething included increased breast-feeding, oral paracetamol, increased fluid supplying and physician consulting. Conclusion: Correct knowledge to teething in infants need to be educated for parents (caretakers) and even for health professionals. Key words: knowledge, attitude, practices, teething, infants.

CLINICAL CHARACTERISTICS OF THE CHRONIC DACRYOCYSTITIS AND THE SUCCESS RATE OF EXTERNAL DACRYOCYSTORHINOSTOMY

2015 ◽  
pp. 29-34
Author(s):  
Van Nam Phan ◽  
Ba Kien Tran
Keyword(s):  
Success Rate ◽  
Key Words ◽  
Clinical Characteristics ◽  
Lacrimal Duct ◽  
Interventional Study ◽  
Chronic Dacryocystitis ◽  
External Dacryocystorhinostomy ◽  
The Mean

Purpose: To determine the clinical characteristics of the chronic dacryocystitis and the success rate of external dacryocystorhinostomy. Methods: The retrospective, interventional study without comparing on 27 patients (32 eyes) of chronic dacryocystitis who underwent dacryocystorhinostomy (DCR) from 2010 to 2011. Results were evaluated with standards: epiphora, purelence, lacrimal duct irrigation. Results: Over period of 6 months, 27 patients including 25 (92.59%) female, 2 (7.41%) male. The mean age was 49.8 years (range, 22-79 years). All patients demonstrated epiphera (range, 3 months – 11 years). Dacryocystorhinostomy was performed unilaterally in 81.48%, bilateral 18.52%. Successrate was 90.06% overall. Conclusions: Although techniques in dacryocystorhinostomy of DUPUY-DUTEMPS is old, its result is mainstay of treatment for chronic dacryocystitis in Vietnam. Key words: Dupuy-Dutemps, chronic dacryocystitis

RESULTS OF INTRALESIONAL TRIAMCINOLONE ACETONIDE FOR CHALAZION TREATMENT

2011 ◽  
pp. 100-104
Author(s):  
Thi Thu Nguyen ◽  
Viet Hien Vo ◽  
Thi Em Do
Keyword(s):  
Success Rate ◽  
Key Words ◽  
Triamcinolone Acetonide ◽  
Lower Eyelid ◽  
Upper Eyelid ◽  
Interventional Trial ◽  
The Mean ◽  
First Time

The study use intralesional triamcinolone acetonide injection proceduce for chalazion treatment.1. Objectives: To evaluate results of intralesional triamcinolone acetonide injection for chalazion treatment. 2. Method: This noncomparative prospective interventional trial included 72 chalazions of 61 patients. 3. Results: 61 patients (72 chalazions) with 19 males (31.1%) và 42 females (68.9%), the mean age was 24 ± 9,78 years. 31.1% patients was the first time chalazion and 68.9% patients was more than one times chalazion including 78.6% patients was recurrent at the first position and 21.4% patients occur at new position. 72 chalazions with 16 (22.2%) chalazions was treated before and 56 (77.8%) chalazions wasn’t done that. 72 chalazions with 49 chalazions (68.1%) are local in upper eyelid and 23 chalazions (31.9%) are local in lower eyelid. The mean of chalazion diameter is 6.99 ± 3.03mm. Intralesional triamcinolone acetonide is injected to treat 72 chalazions with 16 (22.2%) chalazions are injected through the route of skin and 56 (77.8%) chalazions are injected through the route of conjunctiva. After 2 weeks follow-up, the success rate was 93.1% and 6.9% failed. 4. Conclusion: intralesional triamcinolone acetonide injection for chalazion treatment is really effective. Key words: chalazion, intralesional triamcinolone acetonide.

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