- Anonymous Proxy
Umair Sial
Chinese Academy of Agricultural Sciences, Institute of Plant Protection, Graduate Student
- Bahauddin Zakariya University, University College of Agriculture, Graduate Studentadd
Potassium (K) and boron (B) are two important plant nutrients, which have ability to influence their bioavailability in soil-plant ecosystem. They may cause deficiency or may increase availability of each other. To identify their... more
Potassium (K) and boron (B) are two important plant nutrients, which have ability to influence their bioavailability in soil-plant ecosystem. They may cause deficiency or may increase availability of each other. To identify their interaction, a field experiment was designed to identify interactive behaviour influencing their bioavailability, growth, yield and nutritional attributes of maize crop, using K (0, 100, 125 and 150 kg ha –1) and B (0, 8 and 16 kg ha –1). As compared to the control, the growth, yield and nutritional attributes were increased by combined fertilization of K and B than their sole application. Grain yield was increased to 65% with combined fertilization of K and B @125 and 16 kg ha –1 , respectively, with reference to control. Concentrations of K in leaf and grains were increased 253% and 322% with combined fertilization (150 Kg ha –1 of K and 8 Kg ha –1 of B). Fertilization of K and B also increased B concentration in leaf and grains by 179% (150 Kg ha –1 of K and 16 Kg ha –1 of B) and 370% (125 Kg ha –1 of K and 16 Kg ha –1 of B). From the experiment, it was concluded that K and B are one of the essential nutrients for maize to complete its life cycle and also to increase yield parameters of maize crop. Application of 125 Kg ha –1 of K and 8 Kg ha –1 of B is suitable and economical for maize crop to increase crop productivity.
Research Interests:
Mango midge (Procontarinia mangicola) is an important and severe pest of mango in a number of mango growing countries. It attacks the mango at three different stages and leaves no chance of gaining good yield. It destroys the... more
Mango midge (Procontarinia mangicola) is an important and severe pest of mango in a number of mango growing countries. It attacks the mango at three different stages and leaves no chance of gaining good yield. It destroys the inflorescence completely which results in reduced fruit setting. This work was carried out to evaluate the susceptibility of five different mango cultivars (Chaunsa, Anwar Ratol, Sindhri, Langra and Dusehri) against Procontarinia mangicola by funnel traps. The traps were mounted with the twigs under the canopy of mango trees for monitoring of larval population of P. mangicola. Maximum population of P. mangicola were recorded during 2nd week of March in Chaunsa cultivar (107.00±31.03) followed by Anwer Retol cultivar (83.86±23.37). While no significant population was observed in Dusehri cultivar. Result concluded that funnel traps best for monitoring of P. mangicola larvae in mango.
Research Interests:
Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae) is one of the most damaging stored–product insect pests in Pakistan.Though synthetic insecticides have promising results against T. castaneum but use of synthetic insecticides can... more
Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae) is one of the most damaging stored–product insect pests in Pakistan.Though synthetic insecticides have promising results against T. castaneum but use of synthetic insecticides can be hazardous for the environment. Replacing these synthetic insecticides with plant materials to control this pest, however, can be a safe method with low environmental risk especially in stored products. So three important essential oils i.e. neem seed oil, castor seed oil and turpentine oil were evaluated against T. castaneum using contact method. Five different doses of each of the oils were prepared. Mortality percentages on different doses with respect to time were not only compared with each other but also with deltamethrin as a standard. Results showed that mortality was directly proportional to dose and time in case of treated oils and deltamethrin. Order of toxicity was deltamethrin>neem seed oil>castor seed oil> turpentine oil. Based on the results obtained by contact toxicity of neem seed oil, castor seed oil and turpentine oil; five different concentrations were made to find out the fumigant toxicity of neem. Highest mortality was recorded at the highest concentration with respect to time in neem seed oil and deltamethrin at 50% and 5ppm doses, respectively.