Use of plant growth regulators (PGRS) in enhancing crop productivity II. Effect of CAC2 as a source of ethylene on nutrient uptake by wheat (Triticum aestivum L.)
2004
Ahmad, Z. (University of Agriculture, Faisalabad (Pakistan). Inst. of Soil and Environmental Sciences) | Azam, F. | Mahmood, T. | Arshad, M. | Nadeem, S.
A pot experiment was conducted in the greenhouse to evaluate the effect of calcium carbide (a source of acetylene that is precursor of ethylene) on nutrient uptake of wheat (Triticum aestivum L). Inqalab-91 variety of wheat was sown in pots (12 kg soil pot-1) at field capacity moisture and without or with half (60-45-30 kg ha-1) or full (120-90-60 kg ha-1) dose of N, P and K fertilizer. Half dose of N and full dose of P and K was applied at sowing while remaining half with first irrigation. Calcium carbide as a source of ethylene was applied in amounts equivalent to 60 kg ha-1 after one week and eight weeks of germination. A factorial completely randomized design was followed with nine treatments and three repeats. Data regarding uptake of N, P and K was recorded. N, P and K uptake by wheat grain and straw was influenced significantly when CaC2 was applied after one week of germination. So the best time of CaC2 application is after one week of germination.
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Эту запись предоставил National Agricultural Research Centre