Berzsenyi, Z., Ragab, A. Y., Dang, Q. L. (1998): A vetésidő hatása a kukoricahibridek növekedésének dinamikájára 1995-ben és 1996-ban. (Effect of sowingdate on the dynamics of vegetative growth in maize hybrids in 1995 and 1996)
Taylor, A. J., Smith, C. J. 1992: Effect of sowingdate and seeding rate on yield and yield components of irrigated canola (B. napus) grown on a red-brown earth in eastern Australia. Aust. J. Agric. Res. , 43 , 1629
Authors:Z. Abbes, F. Sellami, M. Amri and M. Kharrat
Gbèhounou, G., Adango, E., Hinvi, J. C. and Nonfon, R. (2004): Sowingdate or transplanting as components for integrated
control in grain-cereal crops? Crop Prot. 23, 379–386.
reproduktív növekedésének dinamikájára és a szemtermés komponensekre. (Effect of sowingdate on the dynamics of reproductive growth and the grain yield components of maize hybrids.) Növénytermelés , 47 , 423-437.
A vetésidő hatása a
Authors:S. O. Bakare, M. G. M. Kolo and J. A. Oladiran
There was a significant interaction effect between the variety and the sowing date for the number of productive tillers, indicating that the response to sowing date varied with the variety. A significant reduction in the number of productive tillers became evident when sowing was delayed till 26 June in the straggling variety as compared to sowing dates in May. Lower numbers of productive tillers were also recorded when the sowing of the erect variety was further delayed till 10 July. The grain yield data showed that it is not advisable to sow the straggling variety later than 12 June, while sowing may continue till about 26 June for the erect variety in the study area.
The use of buckwheat as a source of rutin for medicine or food supplement requires a high content of this component in pimary row materials. The study was aimed at the investigation of the influence of stand density and sowing dates on the rutin content in the aboveground parts at the stage of flowering and achenes of two buckwheat species (Fagopyrum esculentum and Fagopyrum tataricum). The rutin content in the aboveground parts of buckwheat was significantly higher in plants sown in mid-May. The sowing date did not influence the rutin content in the achenes. The whole buckwheat plant contained the highest content of rutin in 25 cm rows with a sowing ratio of 200 achenes per square metre. However, the final rutin amount obtained from a buckwheat stand depended on the production of biomass. Common buckwheat provided a higher rutin yield because it produced a higher amount of biomass of inflorescences, the part rich in this flavonoid. Therefore 12.5 cm rows with 400 seeds per square metre are suitable for rutin production because of the higher number of plants. We can recommend tartary buckwheat for achene production as a source of rutin for human nutrition or food supplement because it provides twenty-fivefold more rutin than common buckwheat.