Exploring the Phosphorus Efficient Maize Genotypes on the Base of Growth and Yield Traits
Exploring the Phosphorus Efficient Maize Genotypes on the Base of Growth and Yield Traits
Tahir Abbas Khan1*, Imran Ashraf1*, Athar Mahmood1, Muhammad Ilyas2, Sardar Alam Cheema1, Muhammad Mahmood Iqbal3 and Muhammad Umair Hassan1
ABSTRACT
Phosphorus (P) is an imperious nutrient necessary for plants growth and development. Similarly, cultivars also differed significantly in terms of growth, yield and P utilization. Therefore, present study was performed to assess P efficient maize genotypes on the basis of growth and yield. The study was comprised different maize genotypes; CS-2Y10, KSC-SB 9663, FH-949, 30Y87, NT-6621 and DK-6789 and of diverse P levels; control (No P), 40 and 80 kg P ha-1. The maximum root length (RL), shoot length (SL) and root and shoot biomass was noted with 80 kg P ha-1 and lowest RL, SL and root and shoot biomass was recorded in control. In case of cultivars FH-949 performed well with maximum RL and SL and root and shoot biomass while NT-6621 performed poorly with minimum RL and SL and root and shoot biomass. Similarly, maximum plant height (199.83 cm), leaves per plant (LPP) (12.15), cob weight (0.209 kg), cob length (17.27 cm), grains/cob (441.06), thousand grain weight (TGW) (279.33 g) and grain yield (GY) (6.49 t ha-1) was noted with application of 80 kg/ha P and lowest plant height (174.39 cm), LPP (10.09), cob weight (0.187 kg), cob length (11.99 cm), grains/cob (300), TGW (181.67 g) and GY (4.31 t ha-1) was recorded in control. Similarly, among cultivars maximum plant height (201.11 cm), LPP (12.86), cob weight (0.217 kg), cob length (17.32 cm), grains/cob (417.67), TGW (263.33 g) and GY (6.17 t ha-1) and minimum plant height (172.11 cm), LPP (10.50), cob length (12.30 cm), grains/cob (347.89), TGW (195.11 g) and GY (4.37 t ha-1) was recorded in NT-6621. In conclusion application of 80 kg/ha P is recommended to significantly increase the growth and productivity of maize crop. Moreover, cultivars FH-949 was emerged as a most efficient uses of P and it can also be used in breeding programs to develop the P efficient cultivars.
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