摘要:

AbstractNatural outcrossing in rice bean (Vigna umbellata[Thumb.] Ohwi and Ohashi) was studied in the progenies of recessive plants in F generation of six crosses involving three loci — Ti (seed coat base colour), (seed coat mosaic) and Rr (seedling colour), The estimate of outcrossing (α) varied from 0.27 10 0.81 and the percentage of line showing outcrossing varied from 86.S to 100 and the outcrossing was non rand

ISSN:0179-9541    

DOI:10.1111/j.1439-0523.1987.tb01093.x

出版商:Blackwell Publishing Ltd    

年代:1987

数据来源: WILEY

摘要:

AbstractHomozygous diploids were obtained through anther culture in Indian mustard,Brassier juncea, cultivar TM‐4, Seeds could be harvested from 97 such plants in the A; generation. The androgenetic lines were further selected and the yield and yield components were compared in the A4and A5generations, Androgenetic lines showed variations for most of the characters studied including seed oil content and fatty acid composition. However, it was possible to recover seven lines out of 25 which were equal in seed yield and three equal in oil content compared TO the anther donor parent TM

ISSN:0179-9541    

DOI:10.1111/j.1439-0523.1987.tb01094.x

出版商:Blackwell Publishing Ltd    

年代:1987

数据来源: WILEY

摘要:

AbstractBrachiaria ruziziensisis a sexual diploid tropical grass species of wide adaptation and good forage quality. Pachytene chromosomes were studied in morphological detail and all nine chromosomes were identified by their length, centromere position, and size and distribution of chromomeres. The idiogram prepared for the first time in this species consists of four median and five submedian chromosomes.

ISSN:0179-9541    

DOI:10.1111/j.1439-0523.1987.tb01095.x

出版商:Blackwell Publishing Ltd    

年代:1987

数据来源: WILEY

摘要:

AbstractA group of 17 spring barley isolines with genes for race specific resistance to barley powdery mildew were developed by backcrossing using the cultivar ‘Siri’ as the recurrent parent. A test with 22 isolates of powdery mildew showed that each of the 17 isolines had the same reaction as its donor parent, and that 17 different resistance genes or gene combinations are present among the lines‐ The isolines are very similar to ‘Siri’ in morphology and agronomic pe

ISSN:0179-9541    

DOI:10.1111/j.1439-0523.1987.tb01096.x

出版商:Blackwell Publishing Ltd    

年代:1987

数据来源: WILEY

摘要:

Book reviewed in this articles:Cereal Grain Protein Improvement.Shivanna, K. R., and B. M. Johri, The Angiosperm Pollen. Structure and Function.Gustafson, J. P., Gene Manipulation in Plant Improvement.Backer, A. W., Manual of Quantitative Genetics.Fishbeck, G., W. Plarre und W. Schuster (Hrag.), Hoffmann, W., A. Plarre:Lehrbush der Züchtung landwirtschaftlicher Kulturflanzen, Bd. 2, Spezieller Teil, 2. Auflage.Dodds, J. H. (editor and author), Plant Genetic Engineering.Fiechter, A. (managing editor), Advanced in Biochemical Engineering/Biotechnology. Vol. 31. Plant Cell Culture

ISSN:0179-9541    

DOI:10.1111/j.1439-0523.1987.tb01097.x

出版商:Blackwell Publishing Ltd    

年代:1987

数据来源: WILEY

ISSN:0179-9541    

DOI:10.1111/j.1439-0523.1987.tb01098.x

出版商:Blackwell Publishing Ltd    

年代:1987

数据来源: WILEY