Effect of anthracnose stalk rot on grain yield and related traits of maize adapted to the northeastern United States

1992 ◽  
Vol 72 (4) ◽  
pp. 1031-1036 ◽  
Author(s):  
M. B. Callaway ◽  
M. E. Smith ◽  
W. R. Coffman
Keyword(s):  
United States ◽  
New York ◽  
Zea Mays ◽  
Grain Yield ◽  
Combining Ability ◽  
Dry Weight ◽  
Kernel Weight ◽  
Colletotrichum Graminicola ◽  
Northeastern United States ◽  
Stalk Rot

Anthracnose stalk rot (ASR), caused by Colletotrichum graminicola (Ces.) Wils., has been recognized as a threat to North American maize (Zea mays L.) production since the early 1970s. The purpose of this study was to determine the effect of ASR on grain yield and yield-related traits of eight maize inbreds adapted to the northeastern United States. The inbreds and their crosses were grown at locations in New York, Delaware and Pennsylvania. Treatments were organized in a split-plot design, with genotypes as main plots and inoculation with C. graminicola or no inoculation as subplots. Results are reported for grain yield, number of ears (EARS), and 500-kernel weight (KWT). The effect of inoculation was not significant for grain yield or the two yield-related traits, although the location × inoculation interaction was significant for grain yield. These results show that physiological reduction in grain dry weight attributed to ASR is highly dependent on environment. Significant differences among parents were found for EARS and KWT. General combining ability was significant for KWT, while specific combining ability was significant for KWT and grain yield. Average heterosis was significant for all four variables.Key words: Zea mays, Colletotrichum graminicola, diallel

The Age of Common Beans (Phaseolus vulgaris) in the Northeastern United States

1999 ◽  
Vol 64 (4) ◽  
pp. 653-658 ◽  
Author(s):  
John P. Hart ◽  
C. Margaret Scarry
Keyword(s):  
United States ◽  
New York ◽  
Zea Mays ◽  
Phaseolus Vulgaris ◽  
Radiocarbon Date ◽  
Common Beans ◽  
Eastern United States ◽  
Northeastern United States ◽  
Susquehanna River ◽  
Ams Dates

AbstractA radiocarbon date of A.D. 1070 ± 60 was linked to the remains of maize (Zea mays), beans (Phaseolus vulgaris), and squash (Cucñrbita pepo) at the Roundtop site in the Susquehanna River valley of New York by William Ritchie in 1969 and 1973 publications. This date established the presence of beans in the Northeast at an earlier time than in most other areas of the eastern United States, where they are generally rare before A.D. 1300. Subsequently beans have been reported in pre-A.D.1300 contexts from at least eight other sites in the Northeast. Recent calibrated AMS dates on beans from Roundtop are no earlier than A.D. 1300 (Hart 1999a). Given that the original Roundtop date was responsible for the acceptance of early beans in the Northeast, the AMS dates suggested that beans may not become archaeologically visible there until ca. A.D. 1300. AMS dates on beans from four other sites, reported here, substantiate the Roundtop results. Beans and by extension maize-beans-squash intercropping are not evident in the Northeast before ca. A.D. 1300.

scholarly journals Variability and traits association in maize (Zea mays L.) for yield and yield associated characters

2017 ◽  
Vol 15 (2) ◽  
pp. 193-198
Author(s):  
A Ferdoush ◽  
MA Haque ◽  
MM Rashid ◽  
MAA Bari
Keyword(s):  
Zea Mays ◽  
Genetic Variability ◽  
Grain Yield ◽  
Zea Mays L ◽  
Dry Weight ◽  
Kernel Weight ◽  
High Yield ◽  
Phenotypic Traits ◽  
Cereal Crop ◽  
Breeding Programs

Maize (Zea mays L.) is world’s third most important cereal crop that has a remarkable productive potential in Bangladesh. In Bangladesh, maize is the second most important cereal crop in terms of production. The selection for high yield with desirable traits depends on the genetic variability in the existing germplasm. Successful breeding programs need adequate genetic variation for selection and improvement based on necessity. The research was conducted in the experimental farm of the Department of Genetics and Plant Breeding, Bangladesh Agricultural University, Mymensingh during November 2015 to April 2016. The aim of this study was to evaluate the performance of 20 maize genotypes based on their yield and yield contributing characters to determine existing genetic variability. The extrapolated ANOVA for different yield contributing parameters showed a high degree of variation among the genotypes used. Correlation co-efficient analysis revealed that yield plant−1 (g) had positive and significant association with ear girth (cm), 1000-kernel weight (g), yield plot−1 (g), grain yield   (tha−1) with dry weight. The genotypes differed significantly for most of the phenotypic traits. The phenotypic co-efficient of variation (PCV) was higher than genotypic co-efficient of variation (GCV) in all traits studied indicating that those traits were interacted with the environment. The traits under study expressed wide heritability estimates (26.81% to 99.95%). Among the characters, highest heritability was recorded for 1000-kernel weight (g). High heritability along with high genetic advance was noticed for 1000-kernel weight (g), yield plot−1 (g)and grain yield (tha−1). Considering different desirable traits P-12, Popcorn, V90-1, 988 were observed as superior genotypes. The data would be useful for proper identification and selection of appropriate parents in breeding programs to develop new maize varieties.J. Bangladesh Agril. Univ. 15(2): 193-198, December 2017

CO463 corn inbred line

2018 ◽  
Vol 98 (5) ◽  
pp. 1212-1219
Author(s):  
L.M. Reid ◽  
C. Voloaca ◽  
J. Wu ◽  
T. Woldemariam ◽  
K.K. Jindal ◽  
...  
Keyword(s):  
Zea Mays ◽  
Inbred Line ◽  
Combining Ability ◽  
Zea Mays L ◽  
Stalk Rot ◽  
Intermediate Resistance ◽  
Short Season ◽  
Corn Inbred

CO463 is a short-season corn (Zea mays L.) inbred line with excellent combining ability with both Iodent and stiff stalk inbred testers, as well as intermediate resistance to common rust, eyespot, common smut, and Fusarium stalk rot.

scholarly journals Combining ability for grain yield and other agronomic characters in maize (Zea mays L.)

2011 ◽  
Vol 22 (1) ◽  
Author(s):  
BR Banik ◽  
Kamrun Naher ◽  
M Shalim Uddin ◽  
S Ahmed ◽  
MH Rashid
Keyword(s):  
Zea Mays ◽  
Grain Yield ◽  
Combining Ability ◽  
Agronomic Characters

scholarly journals TOPCROSS ANALYSIS AND COMBINING ABILITY FOR GRAIN YIELD AND OTHER ATTRIBUTES IN MAIZE (Zea mays L.)

2010 ◽  
Vol 1 (5) ◽  
pp. 673-688
Author(s):  
M. Abd El-Azeem ◽  
A. Abd El Aal ◽  
A. El-Galfy
Keyword(s):  
Zea Mays ◽  
Grain Yield ◽  
Combining Ability ◽  
Zea Mays L

Diplodia maydis. [Descriptions of Fungi and Bacteria].

1966 ◽  
Author(s):  
B. C. Sutton
Keyword(s):  
United States ◽  
South Africa ◽  
Zea Mays ◽  
South America ◽  
Geographical Distribution ◽  
Ear Rot ◽  
Seedling Blight ◽  
Stalk Rot ◽  
Maize Roots ◽  
Stenocarpella Maydis

Abstract A description is provided for Diplodia maydis[Stenocarpella maydis]. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On Zea mays. Also on Arundinaria sp. DISEASES: Stalk rot, white ear rot, and seedling blight of maize. Roots may also become infected. GEOGRAPHICAL DISTRIBUTION: Africa (Congo, Kenya, Malawi, Rhodesia, South Africa, Tanzania); Asia (India); Australasia (Australia); Europe (U.S.S.R.), North America (Canada, Mexico, United States); South America (Argentina, Brazil, Colombia).

Surveillance and Monitoring of White-Tailed Deer for Chronic Wasting Disease in the Northeastern United States

2014 ◽  
Vol 5 (2) ◽  
pp. 387-393 ◽  
Author(s):  
Tyler S. Evans ◽  
Krysten L. Schuler ◽  
W. David Walter
Keyword(s):  
United States ◽  
New York ◽  
Lymph Nodes ◽  
Wildlife Management ◽  
Chronic Wasting Disease ◽  
Regional Scale ◽  
Northeastern United States ◽  
Wasting Disease ◽  
The Past ◽  
Northern Colorado

Abstract Chronic wasting disease (CWD) is a prion disease that affects both wild and captive cervid populations. In the past 45 y, CWD has spread from northern Colorado to all bordering states, as well as the midwestern United States (Midwest) and northeastern United States (Northeast), Canada, and South Korea. Because CWD is a relatively new issue for wildlife management agencies in the Northeast, we surveyed a representative (e.g., cervid biologist, wildlife veterinarian) from 14 states to gain a better understanding of state-specific surveillance measures. Between 2002 and 2012, New York (37,093) and Pennsylvania (35,324) tested the greatest number of harvested white-tailed deer Odocoileus virginianus in the Northeast. Additionally, the 14 states surveyed have tested 121,730 harvested deer, or approximately 15,216/y, since CWD was first detected in 2005. The most common tissues used by agencies in the Northeast for testing were retropharyngeal lymph nodes, which have been determined to be the most reliable in detecting CWD in cervids. Understanding CWD surveillance efforts at a regional scale can help to provide guidance for the development of new surveillance plans or the improvement of existing ones. Furthermore, collaborations among state and regional agencies in the Northeast may attempt to identify deficiencies in surveillance by state or subregion.

CO455 corn inbred line

2016 ◽  
Vol 96 (3) ◽  
pp. 387-391
Author(s):  
Lana M. Reid ◽  
Xiaoyang Zhu ◽  
Constantin Voloaca ◽  
Jinhe Wu ◽  
Tsegaye Woldemariam ◽  
...  
Keyword(s):  
Zea Mays ◽  
Inbred Line ◽  
Combining Ability ◽  
Zea Mays L ◽  
Performance Data ◽  
Stalk Rot ◽  
Intermediate Resistance ◽  
Short Season ◽  
And Performance ◽  
Corn Inbred

CO455 is a short season stiff stalk-type corn (Zea mays L.) inbred line with excellent combining ability as well as intermediate resistance to common smut, common rust, eyespot and fusarium stalk rot. Excellent hybrid yields and performance data were achieved when CO455 was combined with Iodent testers such as MBS8148.

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