ИЗСЛЕДВАНИЯ ВЪРХУ ПОЛСКИТЕ КУЛТУРИ
издание на
ДОБРУДЖАНСКИ ЗЕМЕДЕЛСКИ ИНСТИТУТ
гр. Генерал Тошево
 

търсене по автор

НАЧАЛО
Условия за публикуване
Редакционна колегия
Изисквания към авторите
Етични правила
Том XIV, 2021
Том XIII, 2020
Том XII, 2019
Том XI, 2018
Книжка 1
Книжка 2
1 статия   9 - 16
2 статия   17 - 24
3 статия   25 - 36
4 статия   37 - 52
5 статия   53 - 68
6 статия   69 - 80
7 статия   81 - 96
8 статия   97 - 106
9 статия   107 - 114
10 статия   115 - 124
11 статия   125 - 134
12 статия   135 - 150
13 статия   151 - 158
14 статия   159 - 168
15 статия   169 - 182
16 статия   183 - 192
17 статия   193 - 202
18 статия   203 - 210
19 статия   211 - 216
20 статия   217 - 228
21 статия   229 - 234
22 статия   235 - 242
23 статия   243 - 250
24 статия   251 - 260
Том X, 2016
Том IX, 2014
Том VIII, 2012
Том VII, 2011
Том VI, 2010
Том V, 2009
Том IV, 2007
Том III, 2006
Том II, 2005
Том I, 2004
Публикационнен процес
Статия
 Пълна версия ORIGINAL PAPER
 
Селекционна оценка по съдържание на фотосинтетични пигменти на образци пасищен райграс (Lolium perenne L.)
  Анелия Кътова • Желязко Вълчинков • Анна Илиева  
Институт по фуражните култури, Плевен; ул. ”Генерал Владимир Вазов” 89
 
     Резюме
 
The aim is to determine the content of photosynthetic pigments (PP) of perennial ryegrass collection and to make a selection of stable genotypes with a high content of total pigments. During the period 2015-2017 in the Institute of Forage Crops (IFC) -Pleven, a collection nursery was studied in non irrigated conditions on leached black soil, by block method in 2 replications of a total of 21 numbers accessions of perennial ryegrass, with 50 individual plants each (15 varieties and 6 ecotypes, 11 tetraploid and 10 diploid, from Bulgaria, Belgium, Romania and China). The content of photosynthetic pigments is determined by fresh plant samples by the method of Zelenskii and Mogileva (1980) and presents average, minimum, maximum values, standard deviations by growths (cuts) and years, total average for the collection. According to Frances and Kannenberg (1978), a breeding assessment was performed through the distribution of genotypes versus the average values for photosynthetic pigments and the coefficient of variation. Photosynthetic pigments content has been found to vary depending on plant species, genotype (variety or ecotype, ploidy level, maturity group) and seasonal variations (growths and years) as well as growing conditions. The highest total PP content is reported in 2016 on average 309.47 mg / 100g fresh weight (fw) and in 2017 - 284.43 mg / 100g fw. Perennial ryegrass genotypes with a higher PP content were selected from the average annual value for the collection during both years of study: Merlinda, Mara, Melpetra, Iljo, Bekovi rocks and China.

Key words: Perennial ryegrass, Varieties, Ecotypes, Photosynthetic pigments, Selection assessment