The effect of genotype and agronomical practices on the structure of yield factors of buckwheat
2000
Baburkova, M. | Juza, J. | Moudry, J. | Pejcha, J. (Jihoceska Univ., Ceske Budejovice (Czech Republic). Zemedelska Fakulta)
Between 1995 and 1996 at two experiment sites we observed three varieties of buckwheat (Fagopyrum vulgare): Pyra, Lifestum and Hruszowska. The experiments were carried out in different agrotechnical conditions (the quantity of seeds sown 250 to 350 seeds per square m and nitrogen dressing of 0,30 and 60 kg N per 1 ha prior sowing). We observed the effect of genotype and the above mentioned environmental factors on the yield and yield characteristic (the number of plants per square m, the number of seeds per plant and thousand grains weight), as well as the process of creation and reduction of flowers (the number of storeys, the number of inflorescences, the number of flowers per plant) and formation of seeds. The seed yield was statistically affected by the choice of variety (the highest yield was found with the variety Hruszowska and the lowest with Lifestum), a site of growing and the nitrogen nutrition. The potential positive effect of more branches and of the greater number of created flowers can be reached by both nitrogen dressing and lower plant density. The number of seeds per inflorescence and the number of seeds per plant was in a positive relation to the seed yield as opposed to thousand grain weight.
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