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Eggplant (Solanum melongena L.) also known as brinjal is a vital
cheap summer vegetable. It has medicinal properties.Eggplant is
severely damaged by root-knot nematode, Meloidogyne incognita.The
present investigation was carried out to access the effectiveness
of Paecilomyces lilacinus and the Radiant in various combinations
on the reproduction of M. incognita on eggplant.The interaction of
P. lilacinus and Radiant was determined individually,
concomitantly, and sequentially on reproduction of M. incognita on
eggplant under greenhouse. The reproduction of root- knot nematode,
M. incognita was significantly reduced in the concomitant treatment
consisting of both bioagent and bioprouct followed by sequential
and individual treatment of Radiant.Our findings suggest that the
bioproducts and the bioagents have the ability to regulate nematode
population.
A thorough survey of four tehsils of Sargodha District was carried
out to investigate the present status of citrus decline in citrus
orchards. The maximum fungi (39.52 %) were isolated from the roots
followed by the soil (38.86%). The maximum Fusarium spp followed by
Aspergillus and Alternaria were isolated from the collected samples
of roots and soil from the four tehsils of Sargodha District. The
maximum Fusarium spp was isolated from the roots of declining
citrus trees from the tehsil Bhalwal (68.57%) followed by the Kot
Momin (65.87%), Sillanwali (55.87%) and Sargodha (50.32%). F.
solani gave the maximum mycelial growth on the Corn Meal Dextrose
Agar medium followed by the Potato Dextrose Agar medium and then
Malt Extract Agar medium. The maximum growth of F. solani was
observed at pH 6 followed by 5, 4 and 7. While minimum growth was
obtained at 3, 8 and 9 pH respectively Toxin studies were also
carried out using thin layer chromatography which revealed that F.
Solani produces toxins (anhydrofusarubin) which may cause decline
in citrus.
Rice is being consumed by large population of the world. It is the
leading crop in Asia and more than two billion people depend on
rice for more than half the carbohydrates and calories. It is an
important food and cash crop of Pakistan and Pakistan is famous all
over the world for its good taste aromatic rice. But unfortunately,
despite of all the advancements in production technologies a
considerable portion of the produce is lost to diseases. Many
devastating diseases which affect the economics of rice, bakanae
disease is one of them. Over the previous few years, the causal
agent (Fusarium moniliforme) of bakanae is constantly present in
the major rice growing areas (especially in the Punjab Province) of
the Pakistan. So, there was a dire need of comprehensive studies on
the management of paddy diseases. This guide book provides the
scientific methodology and protocol for the management of paddy
diseases and a roadmap for the farmers, researchers and students of
plant sciences.
The present study clearly emphasizes that resistant or slow rusting
varieties should be cultivated under farmers field conditions, to
avoid the yield losses of stripe and leaf rusts in wheat
varieties/lines.All the environmental conditions significantly
influenced leaf rust than the stripe rust. A significant
correlation was observed between leaf rust and maximum and minimum
temperature, rainfall and sun shine radiations. However, non
significant correlation were found between stripe rust and the
environmental conditions. When maximum and minimum temperature
increased the leaf rust severity also increased. Similarly the
sunshine radiations and rainfall influenced positive effect on the
leaf rust. Leaf rust infection on different varieties/lines
increased with an increase in sunshine radiations and rainfall.
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