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Year: 2000 | Volume: 3 | Issue: 8 | Page No.: 1274 - 1276
S. Ahmad, M. Yaseen and A. Saboor
Abstract
Rice genotypes differed significantly in their growth response. Growth response in terms of paddy yield was influenced by P application, genotype and their interaction. Relative reduction in paddy yield ranged from none to 13%. The genotypes K. Basmati, NIAB-6, IRRI-6, Kernal, Basmati-370 and KSK-282 showed positive response to P application. Mostly genotypes with high P concentration had low P uptake, low phosphorus use efficiency and hence low paddy yield. NIAB-6 had used phosphorus efficiently at control P level. Rice genotypes NIAB-6, IRRI-6 and K. BASMATI were P responsive and productive and hence could be regarded as P-efficient rice genotypes. Phosphorus efficient genotypes could be grown under native or little P fertilizer application conditions.