Zayed, B., Negm, M., Bassiouni, S., El Zanaty, A., Hadifa, A. (2023). GENETIC EVALUATION OF SOME RICE GENOTYPES WITH THEIR HALF DIALLEL HYBRIDS AND GENETIC VARIATION ASSESSMENT USING ISSR MARKERS UNDER SALINITY STRESS. Menoufia Journal of Agricultural Biotechnology, 8(1), 19-43. doi: 10.21608/mjab.2023.285479
B.A Zayed; M.E Negm; S.M Bassiouni; A.M El Zanaty; A.A Hadifa. "GENETIC EVALUATION OF SOME RICE GENOTYPES WITH THEIR HALF DIALLEL HYBRIDS AND GENETIC VARIATION ASSESSMENT USING ISSR MARKERS UNDER SALINITY STRESS". Menoufia Journal of Agricultural Biotechnology, 8, 1, 2023, 19-43. doi: 10.21608/mjab.2023.285479
Zayed, B., Negm, M., Bassiouni, S., El Zanaty, A., Hadifa, A. (2023). 'GENETIC EVALUATION OF SOME RICE GENOTYPES WITH THEIR HALF DIALLEL HYBRIDS AND GENETIC VARIATION ASSESSMENT USING ISSR MARKERS UNDER SALINITY STRESS', Menoufia Journal of Agricultural Biotechnology, 8(1), pp. 19-43. doi: 10.21608/mjab.2023.285479
Zayed, B., Negm, M., Bassiouni, S., El Zanaty, A., Hadifa, A. GENETIC EVALUATION OF SOME RICE GENOTYPES WITH THEIR HALF DIALLEL HYBRIDS AND GENETIC VARIATION ASSESSMENT USING ISSR MARKERS UNDER SALINITY STRESS. Menoufia Journal of Agricultural Biotechnology, 2023; 8(1): 19-43. doi: 10.21608/mjab.2023.285479
GENETIC EVALUATION OF SOME RICE GENOTYPES WITH THEIR HALF DIALLEL HYBRIDS AND GENETIC VARIATION ASSESSMENT USING ISSR MARKERS UNDER SALINITY STRESS
1Rice Research department, Field Crops Research Institute, Agricultural Research Center, Egypt
2Genetics Department, Faculty of Agriculture, Menoufia University, Egypt
Abstract
Salinity is the second main grained challenge facing rice production world wide and Egypt too. Selection of the best genotypes and crosses under salinity condition and integrated it in salinity breeding program to improvement the genetic background is a first demand to increase the yield under this condition. The present investigation was carried out at the experimental farm of El-Sirw Agricultural Research Station, Damietta governorate, Egypt to evaluate some rice genotypes and their crosses of half diallel crosses under saline soil condition during 2021-2022 seasons. Eight varying different rice genotypes are crossed by using half-diallel mating design and 28 crosses were obtained and evaluated under saline soil conditions. The combining ability and heterosis of genotypes and their crosses were assessed for improving and getting the promising salt tolerant genotypes. ISSR marker was used to find out the genetic variation of tested rice genotypes and the results indicated that the ISSR-03 and ISSR-08 markers can be used in salinity breeding program. The obtained results indicated that the two parents IR45427 and AGAMI M1 were the best parents for general combining ability in most studied traits under saline soil conditions. Among the crosses highest mean values were scored by the crosses; Giza177× IR45427, IR45427×AGAMI, AC2882×AGAMI, Sakha 107× AGAMI and Sakha107× IR45427 indicating their superiority under salinity condition and their validation to be used in breeding program for rice salinity tolerance.
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