Effect of heat-accelerated seed aging on induction of somatic mosaicism in soybean

1985

REP.SB-1103

Seeds of soybean [Glycine max L. (Merrill)], var. T 219, segregating for Y11y11 gene combination were subjected to artificial seed aging at 37C and 50C. The seed viability decreased with increasing duration of temperature. Storage for up to 8 weeks at 37C did not increase the frequency of spots on y11y11 or Y11y11 plants. Howeverr, 50C treatment induced a significant increase in the frequency of all types of spots. These frequencies roughly correlated with increasing time in storage and decreasing seed viability. Among the three types of spots on Y11y11 plants, the frequency of yellow spots was the highest and that of double spots the lowest. It appears that artificial seed aging can increase the processes leading to formation of single spots (chromosome aberration and point mutations). It does not, however, effect the rate of occurrence of somatic crossing over. [AS]

v.104(1):35-41, BIOLOGISCHES ZENTRALBLATT

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