Results 251 to 260 of about 59,142 (275)

Further Selection for Lower Ear Height in Maize¹

Crop Science, 1972
The effectiveness of selection for lower ear height and the associated responses of four agronomic traits were evaluated. In a previous study two populations of maize (Zea mays L.), ‘Antigua 2D’ ✕ (BIO ✕ B14) and ‘ETO’ ✕ ‘CBC,’ were selected for lower ear height at a selection intensity of 50%. In this study they were submitted to two further cycles at
Alvaro E. Acosta, Paul L. Crane
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Effects of differences in date of ear emergence and height on yield of winter wheat

The Journal of Agricultural Science, 1985
SUMMARYEarly and late, and short and tall lines were selected from a cross between the winter wheat varieties Norman and Talent. All short selections carried the Rht2 dwarfing gene while the tall ones did not. The selections were compared in field experiments at the Plant Breeding Institute in Trumpington and at The Murrays Experimental Farm of the ...
P. Innes, J. Hoogendoorn, R. D. Blackwell   +2 more
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Correlations and QTL detection in maize family per se and testcross progenies for plant height and ear height

Plant Breeding, 2011
With 2 figures and 4 tablesAbstractThe magnitude of genotypic correlations between family per se and testcross, r^g (per se, TC), is crucial for testing schemes in hybrid breeding as well as improvement of commercial hybrids. The objectives of this study were to identify the r^g (per se, TC), to examine the proportion of common QTL for both types of ...
Yan Zhang, Yongxiang Li, Yang Wang, Bo Peng, Cheng Liu, Zhizhai Liu, Weiwei Tan, Di Wang, Yunsu Shi, Baocheng Sun, Yanchun Song, Tianyu Wang, Yu Li   +12 more
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[QTL mapping of plant height and ear position in maize (Zea mays L.)].

Yi chuan = Hereditas, 2009
A molecular linkage map for the maize hybrid of cross between Ye478 and Dan340 was constructed by using 150 co-dominant SSR markers. The total map length was 1 478.7 cM with an average interval of 10.0 cM. Composite interval mapping was used to identify the plant height (PH) and ear position (EH) QTL at 5 environments based on the phenotypic data of ...
Xiao-Jun, Yang, Ming, Lu, Shi-Huang, Zhang, Fang, Zhou, Yan-Ying, Qu, Chuan-Xiao, Xie   +5 more
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Diallel Analysis of Ear Height and Associated Characters in Corn¹

Crop Science, 1978
Early and late low ear corn (Zea mays L.) synthetics were developed by sib‐mating for lower ear height over 12 cycles of selection. Cycles 1, 3, 5, 7, 8, 9, and 10 were crossed in a diallel set for a study on inheritance of ear height and associated characters.Ear height was reduced an average of 3.20 cm per cycle in the early synthetic and 2.98 cm in ...
B. G. Harville, L. M. Josephson, H. C. Kincer   +2 more
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Quantitative Trait Loci for Flowering, Plant and Ear Height, and Kernel Traits in Maize

Crop Science, 1995
The inheritance of quantitative traits is not well understood. A study was conducted to determine the number and chromosomal locations of quantitative trait loci (QTL) controlling male anthesis date; plant and ear height; kernel weight; and kernel protein, oil, and starch concentration in maize (Zea mays L.).
Terry G. Berke, Torbert R. Rocheford
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Ear Height and Weight as Related to Stalk Lodging in Maize¹

Crop Science, 1984
Measurements of ear height, ear weight, and a potential torque index were made on individual plants jointly chosen from within 972 hills of maize (Zea mays L.). A stalk lodged and unbroken plant in each hill were measured. Plants were classified as stalk lodged or unbroken plants whether or not they were root lodged.
T. C. Helms, W. A. Compton
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[Study on the genetic basis of plant height and ear height in maize (Zea mays L.) by QTL dissection].

Yi chuan = Hereditas, 2009
One hundred and ninety-one F2 individuals derives from the cross, Mo17xHuangzao4, were genotyped by SSR and AFLP markers to construct the genetic linkage map, and 184 corresponding F2:3 families were phenotyped for maize (Zea mays L.) plant hright and ear height in Changping and Shunyi. A mixed linear model approach and its software were used to detect
Jin-Hao, Lan, Dong, Chu
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Effect of cup geometry on ear height and thickening in cylindrical flatbottomed steel cups

Metals Technology, 1975
AbstractAn investigation of the effect of cup geometry on ear height and wall thickening in cylindrical flat-bottom cups made from various mild steels has been carried out, and empirical relationships relating these factors have been established. The work has shown that, with reasonable accuracy, the ear height E is given by:E=MP (B2–P2/P)(B–P/P)1 ...
R. C. Hudd, K. Lyons
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The evidence for non-additive effect as the main genetic component of plant height and ear height in maize using introgression line populations

Plant Breeding, 2009
With 2 figures and 5 tables Abstract Two populations, one comprising 98 near-isogenic introgression lines (Z3HBILs) with a Zong3 genetic background, and the other comprising a backcross population developed by crossing introgression lines per se with Zong3, were employed to identify quantitative trait loci (QTL) for plant height and ear ...
W. Bai, H. Zhang, Z. Zhang, F. Teng, L. Wang, Y. Tao, Y. Zheng   +6 more
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