(searched for: doi:(10.35380/*))
Pakistan Sugar Journal, Volume 34, pp 15-22; doi:10.35380/sugar.034.01.0141
Increasing demand of bioenergy, sugar and other byproducts make sugarcane (Sacharum officinarum) very important and valuable crop in world. It is growing on the many diversified agroecological zones of 120 countries of the world. Brazil, India, China, Thailand, Pakistan, Mexico, Colombia, Indonesia, Philippines, and USA (number wise from area and production) are top ten sugarcane producing countries in the world. But yield production per hectare of these countries is ranged from 56-86 t ha-1 is much lower than the achievable potential 100-130 t ha-1. Amongst many other factors responsible for lowering the yield, change in environment is now growing a major factor. It is very difficult to increase area for sugarcane so efforts are made to increase the yield production at the same cultivated area, the per hectare yield production must be improved by adapting modern technologies suited for changing environment. The global warming is increasing due to change in environment by the increasing emission of green house gases. Sugarcane is sensitive for climatic parameters such as temperature, rainfall, sunlight and soil. The research indicated that global temperature will increased from 3-5oC in the end of 21st century. The enormous human activities are cause to accelerate the changing in our ecosystem with low or high rainfall, temperature, severity of pests pressure, unavailability of pollination services, decrease soil fertility, alter the water use efficiencies and crop behavior. Changes in temperature, rainfall, floods, drought, salinity stresses and frosts have been found major factor for lowering production of sugarcane in Pakistan is highly dependent on natural resources. Obtaining the high cane production with high quality juice in future, it is necessary to develop cane varieties and advanced farm management practices which will suitable under changing environment.
Pakistan Sugar Journal, Volume 34, pp 11-14; doi:10.35380/sugar.034.01.0140
Sugarcane crop is highly vulnerable to attack by a complex of rodent pest species due to its long duration, providing excellent protective cover for field rats to feed and thrive throughout the year. Damage survey conducted at crop maturity stage (September-November) at Palejo Farm, Thatta revealed that BL-4 variety was heavily attacked due to its softness (10.40%) followed by BF-129 variety (8.63%) and least affected was Thatta-10 variety (6.62%). Rat damaged cane become further infested with other micro-organism and physical stress, resulting in reduction in weight and sugar recovery. Rodent control trials through application of PARC Rat bait formulations containing Zinc Phosphide (2%), Bromadiolone (0.005%) and Brodifacoum (0.005%) alongwith additive (Egg 3%) showed remarkable reduction in pest population. Brodifacoum mixed bait emerged as highly effective formulation showing 92.63% reduction in pest population followed by Bromadiolone bait (89.02%) and Zinc phosphide bait (83.54%). For effective management of field rodents, Integrated Pest Management (IPM) approach is recommended with combination of mechanical, chemical and habitat manipulation practice to enhance the crop yield through effective rat pest management.