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Kirti Joshi , N. S. K. Harsh

Abstract

Trichoderma species are one of the potential biocontrol agents exploited to manage many of the soil and seed borne plant pathogens. Quantitative estimation of Trichoderma species in soil is often difficult because of relatively rapid growth of other soil fungi on conventional agar media, so selective medium is required for isolating Trichoderma from soil as well as for estimating its survival in soil. Various media and different combinations have been tried for making dilution plates of Trichoderma from soil. This study was taken up to prepare the most effective selective medium which contained Magnesium sulphate (0.2 g), Potassium orthophosphate (0.9 g), Ammonium nitrate (1.0 g), Potassium chloride (0.15 g), Glucose (3.0 g), PCNB (0.1 g), Rose Bengal (0.1 g), Chloramphenicol (0.25 g), Agar (15 g), Metalaxyl (0.1 g) and Distilled water (1 lit).

Keywords

Trichoderma-specific Medium, Trichoderma piluliferum

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Kirti Joshi , N. S. K. Harsh , P. S. Rawat , A. N. Shukla

Abstract

Seed samples from different sources of Pinus wallichiana from Himachal Pradesh and Uttaranchal were evaluated for the occurrence of seed mycoflora. A total of 13 fungi with 22 fungal species were isolated of which species of Aspergillus and Penicillium were dominant. Seed source Kufri (H.P.) reported maximum number of mycoflora i.e. 9 fungi, while in Sawat and Kharapathar (H.P.) only one fungus was recorded namely Aspergillus niger.

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P. S. Rawat , Nidhi Punj , Kirti Joshi , N. S. K. Harsh

Abstract

Seeds collected from different sources of Pinus roxburghii from Himachal Pradesh, Uttaranchal, J&K and Nepal were evaluated for the occurrence of seed mycoflora. A total of twelve species belonging to nine fungi were isolated of which species of Aspergillus and Penicillium were dominant. Seed source Rajgarh Himachal Pradesh was found to be infested with maximum number of eight fungi, while in seed source of Uttarkashi (Uttaranchal) two fungi namely A. niger and A. flavus were recorded.

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Kirti Joshi ¹, Manoj K. Singh ¹, Rajendra Dobhal ¹

Affiliations
1 Uttarakhand State Council for Science and Technology, Vigyan Dham, Jhajra, Dehradun 248 007, IN

Abstract

No Abstract.

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Kirti Joshi ¹, Chandrasekhar Khare ¹

Affiliations
1 School of Mathematics, TIFR Homi Bhabha Road Mumbai 400 005, IN

Abstract

Let p ≥ 5 be a prime. A well-known conjecture of Serre (see [18]) asserts that any two dimensional irreducible representation

Ï : Gal(Q/Q) → GL₂ (F_p),

which is odd (in the sense that det(c) = −1 , where c is complex conjugation), arises from reduction modulo p of the p-adic representation attached to a newform by Deligne (see [2]). In such a situation, we say that Ï is a modular mod p Galois representation.

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Charu Malhotra ¹, Kirti Joshi ¹

Affiliations
1 Uttarakhand State Council for Science and Technology Vigyan Dham, Jhajhra, Dehradun 248 007, IN

Abstract

The capabilities¹ and effectiveness² of women as scientists continue to be doubted amongst the male-dominated scientific community. There is no scientific basis to these perceptions as research disproves them³. A common perception is that women publish less and that the quality of their work is often questionable. Hasan et al.⁴ conclude that the quality of research by female research scholars is at par with that of their male counterparts and the quantum is commensurate with their proportion. Another widely held notion is that women are unable to devote adequate time to research because they have to manage both family and work. Kurup and Maithreyi⁵ demonstrate that more women scientists (47%) than men (34%) devote 40–60 hours per week and that 86% of women scientists can manage both family and work. Subtle, but deep ischolar_mained work place gender biases against women scientists seem to be a plausible explanation for the prevalence of such doubts.

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