Characterization and evaluation of estonian garden pea (Pisum sativum L. ssp. sativum convar. medullare alef. emend C.O. Lehm.) Genetic resources
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2021-03-06 19:09
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ANNAMAA, Kulli, NARITS, Lea, BENDER, Ingrid. Characterization and evaluation of estonian garden pea (Pisum sativum L. ssp. sativum convar. medullare alef. emend C.O. Lehm.) Genetic resources. In: International congress on oil and protein crops, 20-24 mai 2018, Chişinău. Chișinău, Republica Moldova: Tipografia "Artpoligraf", 2018, p. 19. ISBN 978-9975-3178-5-6.
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International congress on oil and protein crops 2018
Congresul "International congress on oil and protein crops"
Chişinău, Moldova, 20-24 mai 2018

Characterization and evaluation of estonian garden pea (Pisum sativum L. ssp. sativum convar. medullare alef. emend C.O. Lehm.) Genetic resources


Pag. 19-19

Annamaa Kulli, Narits Lea, Bender Ingrid
 
Estonian Crop Research Institute
 
 
Disponibil în IBN: 31 august 2019


Rezumat

Garden pea breeding has been conducted in Estonia for over 95 years. During this period 16varieties have been released by the Estonian Crop Research Institute (ECRI). Estonia is the northernmost region where breeding of garden peacontinues to this day. Long-term preservation of advanced cultivars, landraces and breeding lines of Estonian origin of agricultural crops is ensured at the Genebank. Field trials aimed at characterization and evaluation of 11 varieties and breeding lines of garden pea ('Aamisepp', 'Herko', 'Looming', 'Valma', 'Ami', 'Erme', 'Jõgeva varajane 22', 'Tasuja', Virges', 'N 931', 'N 1064') were carried out at the ECRIin 2013-2015. 32 descriptors were assessed in accordance with evaluation methodology for pea genetic resources (Peas, 2006). Morphology of foliage and inflorescences were evaluated and disease resistance (Ascohytapisi, Erysiphepisi, Perenosporapisi, Uromyces ssp.) was estimated during the vegetation period. Earliness is one the most important breeding objective in Estonia. Growing period was shortest of variety 'Valma' – 96 days and the longest of 'Looming' – 110 days. Content of vitamin C and sugar were determined in fresh green peas at growing phase 77 (BBCH scale). The highest content was found in a variety ‘Valma’, 25-36m% and 3.5-5.8%, respectively. Other characteristics of pods and seeds were determined at the growing phase 99. The average length of pods of all tested varieties was 7.1 cm.Variety 'Looming' had the longest pods – 7.6 cm. The average number of pods per plant was 3.5, the highest was on breeding line 'N 1064' – 4.7. The average number of seeds per pod was 5.4, 'Looming' – 6.6. Number of ovaries per pod was as average 7.8, highest was on 'Looming' - 8.7. Average seed weight per plant was 5.3 g, highest was on 'N 1064' – 8.7 g. 1000 seeds weight varied from 244.8 g ('Virges') to 331.3 g ('Aamisepp'). Stem length varied from 31.3 cm ('Valma') to 109.3 cm ('Aamisepp'). Protein content of seeds was calculated on the basis of dry matter (DM) and nitrogen contents. All studied accessions werecharacterised by high protein content(>26%), highest was of 'Looming' – 31.2%.