On the effect of pinching and spraying of foliage with urea upon growth and fruiting in the buckwheat plant

Abstract

1) The growth of buckwheat plant was delayed by pinching for a time, but was gradually recovered afterwards and at the time of maturation the plants bore better grains than those not pinched. Blasting and sterile grains seemed to decrease a little in number when the plants wer pinched leaving five 1eaves. Pinching were suppose to bring results on growth and fruiting, but other experimental conditions such as weather, nutrition, and distance of planting, etc. should be taken into consideration for more accurate evaluation of the results. 2) Experiments were made to see whether urea solution is absorbed through the undamaged epidermal tissue of the leaf or not, when it is sprayed. The experimental plants sprayed 1∼5times, repeatedly seemed to show better growth than those untreated, Spraying in earlier stages of growth brought good results on fruiting. These experiments were but preliminarily conducted, and the above conclusion should be re-examined in farther experiments.