Yield analysis of traditional and self-completing white lupin (Lupinus albus L.) varieties in relation to plant density
Abstract
The 1997–1999 field experiment was laid out as a randomized block design at the Mochełek Experimental Station. Four following densities 25, 50, 75 and 100 germinating seed per m2 of the Bardo traditional and R-525 — self-completing white lupin varieties were sown on 3rd, 4th April and 31rd of March for the respective years of tests. Average seed yield of Bardo was 3.17 tha-1 and 2.39 tha-1 of R-525. Net seed yield range from 1.86 tha-1 to 3.12 tha-1 for Bardo and from 0.52 to 3.26 tha-1 for R-525 respectively for the lowest and highest plant densities prior to harvest. Bardo seed yield increased significantly up to 75 plants per m2, while R-525 — up to 97 plants per m2. An equal seed yields of both varieties were obtained at 111 plants per m2. Along with the increase of plant density, the highest reduction of number of pods, seeds and weight of seeds developed on branches and per plant was observed for Bardo. There was no significant correlation between the yield components and plant density for R-525 — self-completing variety. Healthier seeds were harvested from higher plant densities, especially for self-completing variety, while higher germination capacity seeds — from lower plant density, especially for traditional growth type variety.
Keywords:
plant density, white lupin, yield componentsReferences
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Authors
Janusz Prusińskibiuro.dziekana.wrib@pbs.edu.pl
Akademia Techniczno-Rolnicza w Bydgoszczy Poland
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