Exploiting Selected Obsolete Wheat Cultivars of Pakistan for Climate Smart, Low Phosphorus Input Agriculture
DOI:
https://doi.org/10.55627/agrivet.003.03.0956Keywords:
Phosphorus, Wheat, Genotypic Variation, Climate Smart AgricultureAbstract
Identifying genotypes that are efficient in phosphorus (P) help reduce the input of costly P fertilizers and promote environmental health. P efficiency of five selected obsolete wheat cultivars, viz. MEXIPAK-65, INDUS-66, PAK-70, PARI-73, ZA-77 was exploited in a thrice replicated randomized complete block design field study, involving TJ-83 as control, on a P deficient soil supplied without or with P (0 and 90 kg P2O5 ha-1, respectively). Results revealed that the wheat genotype PARI-73 had the highest seed index, followed by PAK-70 which received no P fertilizer, and followed by TJ-83 at adequate P supply. Likewise, it also produced maximum grain yield at no P supply, however, TJ-83 produced maximum grain yield followed by ZA-77 at adequate P level. The straw yield of ZA-77 was highest at no P supply, while at adequate P supply TJ-83 offered maximum straw yield followed by ZA-77. Grain and straw P concentration was noted maximum in case of MEXIPAK-65 at no P supply, while for ZA-77 at adequate P supply. The grain and straw P accumulation of all the wheat varieties was statistically similar at no P supply, however, it was maximum for TJ-83 at adequate P followed by ZA-77. The P-use-efficiency of PARI-73 was more than any wheat genotype while the P efficiency ratio of wheat varieties was maximum for Indus-66 and PAK-77 followed by MEXIPAK-65 and PARI-73. These results endorse that wheat genotypes differ for their P-use-efficiency and P utilization. The wheat genotype PARI-73 can be an ideal candidate for climate smart low P input agriculture
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Copyright (c) 2024 Fozia Naz Memon, Zia-ul-hassan, Naheed Akhter Talpur, Bilawal Hussain Shah, Inzamam Ali Jamali, Khalid Hussain Talpur
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