Tag: weed

Is noxious weed parthenium a blessing?

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article image Parthenium hysterophorus is widely growing weed found in abundance everywhere in irrigated and non-irrigated areas of the Punjab. As one knows that the weeds are the plants that are competitive, persistent, pernicious, and interfere negatively with human activity. Weeds have major economic, environmental and social impacts causing damage to natural landscapes, agricultural lands, waterways and coastal areas. Parthenium hysterophorus is amongst ten…Read More

Allelopathy – a natural alternative approach towards weed management

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article image ALLELOPATHY is a biological phenomenon in which an organism releases one or more bio-chemicals that influences the other organisms. These biochemicals are recognized as allelochemicals and can have positive or negative effects on the target organisms. At present, allelopathy has been considered to be the most important factor influencing the invasion and spread of exotic plants. The importance of allelopathy in natural agro-ecosystem has attracted researcher’s attention with the…Read More

Rapid multiplication of noxious Parthenium weed needs attention

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article image PARTHENIUM HYSTEROPHORUS is widely growing weed found in abundance everywhere in irrigated and non-irrigated areas of the Punjab. As one knows that the weeds are the plants that are competitive, persistent, pernicious, and interfere negatively with human activity. Weeds have major economic, environmental and social impacts causing damage to natural landscapes, agricultural lands, waterways and coastal areas. Parthenium hysterophorus is an aggressive ubiquitous annual herbaceous weed with…Read More

Parthenium-a noxious weed

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Parthenium (Parthenium hysterophorus) is a genus of flowering plants in the aster family, Asteraceae’, a new and potentially major weed, spreading exponentially in Pakistan especially in Punjab. The survey of various districts of the Punjab reveals that this weed is spreading rapidly in the rain-fed districts viz. Sialkot, Gujranwala, Sheikhupura, Lahore, Kasur, Hafizabad, Rawalpindi and Islamabad while the districts of southern Punjab viz. Multan, Bahawalpur and Bahawalnagar are either…Read More

Weed management under changing climate

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article image Climate is long term aggregated conditions of weather elements prevailing in a particular region over a specified period of time. Unfortunately, man has accelerated the degradation and over-exploitation of natural-resources due to which the global climate is fluctuating at an alarming rate. Ever rising population is adding a lot of problems offering the ease to changing climate. Deforestation, industrialization, urbanization and release of green house gases have changed the temperature…Read More

Integrated weed management a new tech

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article image By Amar Matloob and Dr. Abdul Khaliq FOOD SECURITY in Pakistan is threatened by ever increasing population, declining availability of fresh water, sky rocketing prices of agricultural inputs and uncertainty of climatic optima. Rice is a major food cash crop in the country and is traditionally cultivated by raising nursery and then transplanting it in standing water. This type of rice culture helps in weed control especially. However, this method requires huge inputs like irrigation water…Read More

Current scenario of weed management in Pakistan

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article image Farmers had been busy in controlling weeds by different local approaches. It would be a faint dream to expect high crop yield potential without taking weed management in account. Crops can never achieve the potential claimed by the breeders because of environmental hazards and management constraints and I reckon the weeds as number one threat in this regard.  Under such circumstances, farmers’ own varieties or land races are better yielderPAKISTAN HAS diverse climatic conditions providing the…Read More