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Not AvailableA laboratory experiment was conducted to study the response of 45 castor genotypes to drought stress. Five water stress levels were used. The experiment was laid out by complete randomized design with two replications. Ten seeds of each accession were sown in sterilized sand medium and the Poly Ethylene Glycol solution was given to medium. On the tenth day, the observations were recorded. Seedling length, root length and germination percentage were observed. The highest tolerance for germination was shown by RG 2474. The values of shoot length were higher in RG 2474. The maximum root length was seen in RG 2326 and RG 3013.Not Availabl

Associations among the modes of pollination and seed dispersal: ecological factors and phylogenetic constraints

We argue that specific modes of pollination and seed dispersal tend to be associated (co-occur) in plants and that the pollination and seed dispersal modes adopted by the plant shapes reproductive features including clutch size and unit of dispersal. We tested these predictions using the data on the flora of the British Isles. We found that more often than expected wind pollinated species tend to have either passive (including explosive) or animal-dispersed seeds. Wind dispersed species also tend to have a smaller clutch size with the fruit as a unit of dispersal, while passively dispersed species also tend to have large clutch sizes with seeds as unit dispersal. We discuss the role of phylogenetic constraints and ecological factors in shaping these associations

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Not AvailableSRI has reached certain level of acceptance among the research and scientific community in major rice producing countries. The SRI method of rice cultivation involves planting single seedling in wider row spacing ie, 25x 25 cm, which involves more labour intensive and laborious process. Hence, the present study was conducted with an objective to compare the mechanized rice transplanting method with SRI method of cultivation. The study was conducted with four treatments viz., T1 - Planting with transplanter + SRI principles, T2 - Planting with manual labour (25 cm x 25 cm) + SRI principles, T3 - Conventional transplanting (20 cm x 10 cm), T4 - Farmers practices. The study indicated that mechanized transplanting with rice transplanter adopting 30 x 14 cm row spacing recorded more 10.00 per cent more yield when compared to SRI method of planting (25 x 25 cm spacing) with the high cost benefit ratio of 2.72.Not Availabl

Locations of evaluation experiments of wheat germplasm against rusts and spot blotch.

<p>Primary screening against the three rusts was carried out at Wellington. Subsequent screening for stripe rust resistance was done at Gurdaspur and for spot blotch resistance at Cooch Behar. The seedling resistance assay was carried out at Flowerdale and molecular profiling was done at New Delhi. Base map was generated using DIVA-GIS data (<a href="http://www.diva-gis.org/gdata" target="_blank">www.diva-gis.org/gdata</a>).</p

Results of primary screening of wheat germplasm against three rusts.

<p>Stem: Stem rust; Leaf: Leaf rust; Stripe: Stripe rust S: Susceptible; MS: Moderately susceptible; MR: Moderately resistant; R: Resistant.</p