The evolutionary impact of crop-to-wild gene flow depends on the fitness of hybrids under natural, competitive conditions. Here, we measured the performance of third-generation (F3) radish hybrids (Raphanus raphanistrum x Raphanus sativus) and weedy R. raphanistrum to understand how competitive interactions affect life history and relative fecundity. Three wild and three F1 crop-wild hybrid rad...

Determination of the prosthetic group and titration of sulfhydryl group of ferredoxin-NADP+ oxidoreductase (FNR) from roots of radish (Raphanus sativus var acanthiformis cv Miyashige) confirmed its similarity to leaf-FNR. Antisera directed against radish root-FNR and leaf-FNR distinguished the enzyme forms from roots and leaves of radish as well as other flowering plants. The FNR isoenzymes sho...

Four crop plants Oryza sativa (rice), Solanum melongena (brinjal), Spinacea oleracea (spinach) and Raphanus sativus (radish) were grown to study the impact of secondary treated municipal waste water irrigation. These plants were grown in three plots each of 0.5 ha, and irrigated with secondary treated waste water from a sewage treatment plant. Sludge from the same sewage treatment plant was app...

Since plant mating choices are flexible and responsive to the environment, rates of spontaneous hybridization may vary across ecological clines. Developing a robust and predictive framework for rates of plant gene flow requires assessing the role of environmental sensitivity on plant reproductive traits, relative abundance, and pollen vectors. Therefore, across a soil moisture gradient, we quan...

This work aimed to evaluate the influence of root exudates from cover crops: Raphanus sativus, Avena strigosa and Vicia villosa on germination development Zea mays, Amaranthus spinosus Ipomoea grandifolia. The tests performed were gas chromatography with mass spectrometry, rate, vigor, protrusion dry matter. Aliphatic amino acids (Alanine, Glycine, Isoleucine, Leucine, Proline, Serine, Threonin...

Brassica cover crops are new to the mid-Atlantic region, and limited information is available on their N uptake capabilities for effective N conservation. Forage radish (Raphanus sativus L. cv. Daikon), oilseed radish (Raphanus sativus L. cv. Adagio), and rape (Brassica napus L. cv. Dwarf Essex) were compared with rye (Secale cereale L. cv. Wheeler), a popular cover crop in the region, with reg...