Mansour,, S. (2000). EFFECTS OF GAMMA-RAYS ON DIFFERENT CHARACTERS OF TWO MUNGBEAN GENOTYPES IN THE M1, M2 AND M3 GENERATIONS. Journal of Plant Production, 25(12), 7335-7344. doi: 10.21608/jpp.2000.260235
S. H. Mansour,. "EFFECTS OF GAMMA-RAYS ON DIFFERENT CHARACTERS OF TWO MUNGBEAN GENOTYPES IN THE M1, M2 AND M3 GENERATIONS". Journal of Plant Production, 25, 12, 2000, 7335-7344. doi: 10.21608/jpp.2000.260235
Mansour,, S. (2000). 'EFFECTS OF GAMMA-RAYS ON DIFFERENT CHARACTERS OF TWO MUNGBEAN GENOTYPES IN THE M1, M2 AND M3 GENERATIONS', Journal of Plant Production, 25(12), pp. 7335-7344. doi: 10.21608/jpp.2000.260235
Mansour,, S. EFFECTS OF GAMMA-RAYS ON DIFFERENT CHARACTERS OF TWO MUNGBEAN GENOTYPES IN THE M1, M2 AND M3 GENERATIONS. Journal of Plant Production, 2000; 25(12): 7335-7344. doi: 10.21608/jpp.2000.260235
EFFECTS OF GAMMA-RAYS ON DIFFERENT CHARACTERS OF TWO MUNGBEAN GENOTYPES IN THE M1, M2 AND M3 GENERATIONS
Dry seeds of mungbean [Vigna radiata (L.) Wilczek] genotypes VC 2010 and Kawmy were exposed to two levels of gamma-rays 15 and 30 K.rad. Three generations M1, M2 and M3 were studied after irradiation in the summer seasons of 1997, 1998 and 1999. The studied characters included growth parameters, yield, yield components and cytological behaviour.
In the M1 generation, it was observed that the radiation dose of 30 K.rad significantly reduced the rate of cell division than the control by 29% and 43% for the genotypes VC 2010 and Kawmy, respectively, and increased the appearance of chromosomal aberrations in mitosis in the two genotypes. It was observed that germination percentage, plant height, No. of branches per plant and No. of green pods per plant at harvest time (i.e., after 100 days from sowing seeds) exhibited significant reduction with increasing radiation levels in the two genotypes. While the number of mature pods per plant at harvest time, seed yield per plant and yield per feddan significantly increased by radiation with 15 K.rad in genotype VC 2010 while in Kawmy genotype these characters exhibited a significant decrease.
In M2 and M3 generations, the following characters germination percentage, plant height, No. of branches per plant and No. of green pods per plant showed a significant decrease for both generations. However, the effect of radiation in M2 and M3 were less than in M1 and the genotype Kawmy was more affected than genotype VC2010. The highest value of variability was observed in the character of number of mature pods per plant for M1, M2 and M3 generations, the lowest variability was recorded for germination percentage in all generations.
View on SCiNiTO
Top