Abstract            Volume:12  Issue-9  Year-2024         Original Research Articles

Online ISSN : 2347 - 3215 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcret@gmail.com

Composite crossed population is one of the strategies that can be suitable under organic agriculture conditions to buffer against fluctuating environments, hence these composites have inherent genetic variability. The objective of the study was to assess several generations of compositely crossed populations of wheat for grain yield, yellow rust and important traits in organic farming. The ANOVA revealed that no significant difference was observed among several generations of composite wheat population for yield, whereas there was a significant (p = 0.002) difference for a thousand kernel weight. The composite population of I had high thousand kernel weight (43.22 g) and the lowest recorded for pure line (37.42 g). A highly significant difference (P<0.05) was observed among the composite crossed population for strip rust incidence and severity across phenological growths. The highest yellow rust incidence (92.0%) was recorded for the pure line, followed by two old populations at the milk stage. Even though diversity within composite populations limited the spread of disease expansion, several generations of composite populations exhibited similar grain yield as pure line. Therefore, further study is required using the diversity of wheat and variant alleles to combine and develop resilience cultivars to optimize yield, resistance to disease and nutrient use efficiency under organic conditions in their ecological farming system.

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