The physiological phenomena of yield barriers in rust resistant groundnut genotypes were studied using growth analysis as a tool. Ten genotypes including four susceptible, three each from partial resistant and resistant categories were subjected for the study. Higher CGR, LAR and LAI during the pod filling and maturity stages in resistant and partially resistant genotypes indicated more partitioning of dry matter to leaf tissues rather than to pods, resulting in poor development of pods and kernels. The evolution of partially resistant varieties in preference to completely resistant ones for cultivation in endemic areas will be more useful.
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Tamil Nadu Agricultural University
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Madras Agricultural Journal (MAJ)
Madras
Agricultural Students Union
Tamil Nadu Agricultural University
Coimbatore - 641 003
Tamil Nadu, India.
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