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VARIATION WITHIN FRENCH BEAN VARIETIES
Author(s) -
BATEMAN A. J.
Publication year - 1952
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1952.tb01005.x
Subject(s) - biology , homogeneous , variation (astronomy) , botany , wonder , horticulture , agronomy , mathematics , psychology , social psychology , physics , combinatorics , astrophysics
The internal variability of several varieties and strains of French bean is investigated, confining attention to the single character, seed weight. Out of eleven strains examined only two appeared to be homogeneous for seed weight, whilst two were obviously heterogeneous even by superficial examination of the seed. A comparison of the distribution of seed weights in five strains of Canadian Wonder showed that each strain contains at least two or three lines out of the minimal estimate of four shared between them. The natural out‐crossing of fourteen varieties, including those analysed for seed weight, is compared. There are indications that varieties vary in their out‐crossing propensities. No indication was found of the causes of the high frequencies of out‐crossing occasionally encountered. The possible sources of intra‐varietal variation are briefly surveyed.