[Influence of water-temperature rate during vegetation period on blooming of spring rape variety Yavor]
2007
Vorobeva, N.S. | Zholik, G.A., Belarus State Academy of Agriculture, Gorki (Belarus)
In scientific sources there is inconsistent information on influence of a temperature mode and supplying of plant moisture on intensity and duration of flowering and fruit formation. Studying of influence of temperature and water modes on dynamics of flowering of spring rape variety Yavar was the purpose of research. Research were spent in 2002-2004 on trial field of the Belarus Academy of Agriculture. The soil of trial plot is sod-podzolic, usual, medium-tame, sandy loam, developing on loess-like loam spread by moraine from depth of 135 cm with a layer of sand on contact and on agrochemical indicators met the requirements of cultivation of spring. The agricultural methods of carrying out of experiences is standard for the given zone. Norm of seeding - 2,4 million viable seeds. Dynamics of flowering supervised with intervals in one day on 10 plants noted by labels in quadruple frequency. The quantity account of flowers was spent with the advent of the first flowers before the full termination of plant flowering. The number of days of flowering was specified further from the beginning of plant flowering. Spring rape blooming at different temperatures and levels of humidity was thoroughly examined. The role of separate stems in blooming and its duration depends on weather conditions during blooming was proven. Unfavourable conditions at the end of the phase lead to sharp decrease in the number of flowers on the plant and quick blooming
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