Statistical properties of indicators of growth and fruiting of currants

The research objective was the assessment of the degree of the variation of indicators of growth and fructification of different blackcurrant varieties, the identification of correlation communications between separate indicators. The researches were conducted on experimental sites of the department of berry cultures of FSSI "I.V. Michurin FSC". The sites were put according to the scheme 4.0 ´ 0.75 m. As biological objects of the research the plants of six varieties of blackcurrant numbering 50 pieces on each variety were taken. The plants got out incidentally, in fruiting stage. The measurements were made on typical shoots. The measurements of the height of a branch and the length of fructifying zone were carried out by means of the roulette, the instrument error made 0.1 cm. The crop (lump of berries) from the bush was determined by the formula: Y = А•В•С where A - total number of berries on a branch, ps; B - average weight of one berry; C - the quantity of fructifying branches of a bush, ps...