EJPAU 2005. Wondołowska-Grabowska A. , Kotecki A. EFFECT OF COMMON BEAN (<I>Phaseolus vulgaris</I> L.) HARVEST DATE AND METHOD ON THE ORGANIC NUTRIENTS ACCUMULATION RATE

Electronic Journal of Polish Agricultural Universities (EJPAU) founded by all Polish Agriculture Universities presents original papers and review articles relevant to all aspects of agricultural sciences. It is target for persons working both in science and industry,regulatory agencies or teaching in agricultural sector. Covered by IFIS Publishing (Food Science and Technology Abstracts), ELSEVIER Science - Food Science and Technology Program, CAS USA (Chemical Abstracts), CABI Publishing UK and ALPSP (Association of Learned and Professional Society Publisher - full membership). Presented in the Master List of Thomson ISI.

2005
Volume 8
Issue 2

Topic:

Agronomy

ELECTRONIC
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES

Wondołowska-Grabowska A. , Kotecki A. 2005. EFFECT OF COMMON BEAN (Phaseolus vulgaris L.) HARVEST DATE AND METHOD ON THE ORGANIC NUTRIENTS ACCUMULATION RATE, EJPAU 8(2), #21.
Available Online: http://www.ejpau.media.pl/volume8/issue2/abs-21.html

EFFECT OF COMMON BEAN (PHASEOLUS VULGARIS L.) HARVEST DATE AND METHOD ON THE ORGANIC NUTRIENTS ACCUMULATION RATE

Anna Wondołowska-Grabowska¹, Andrzej Kotecki²
¹ Department of Plant Cultivation, University of Agriculture in Wrocław, Poland
² Department of Plant Cultivation, Wrocław University of Environmental and Life Sciences, Poland

ABSTRACT

Over 1996-1998 field and laboratory experiments were carried out to define the effect of genetic factor, bean harvest dates and methods on the rate of organic nutrients accumulation in the seeds, pods and stems. The following were researched: a) bean cultivars represented by three forms: small-seeded - `Mela´, medium-seeded - `Słowianka´ and small-seeded - `Jubilatka´, b) harvest dates (every 7 days), from the 7^th day following the end of flowering to full plant ripeness, c) harvest methods (threshing): direct (A) - hand-made threshing of seeds directly after cutting, two-stage (B) - hand-made seed threshing once the whole cut plants desiccated, two-stage (C) - hand-made threshing following the seed desiccation in pods previously separated from the plants directly after their cutting. As plants were ripening, the content of water in seeds was decreasing, and the process of wilting was faster than in pods and stems. Two-stage harvest B, as compared with direct harvest A, showed a more favourable effect on the accumulation of dry matter in seeds. The interaction of factors (cultivar x date) decreased, along with ripening, the content of total protein and crude fat in bean seeds, and an increase in the energy value and the share of nitrogen-free extract. The share of respective plant parts (seeds, pods and stems) in the accumulation of nutrients was changing with the ontogenetic development. The share of seeds increased, while the share of stems in the accumulation of total protein and nitrogen-free extract decreased. While comparing the three harvest methods for cultivars, direct harvest A showed most favourable for the content of crude ash, and the two-stage harvest B - for the energy value in all the cultivars researched.

Key words: common bean, harvest dates and methods, organic nutrients, organic nutrients accumulation.

Anna Wondołowska-Grabowska
Department of Plant Cultivation,
University of Agriculture in Wrocław, Poland
Norwida 25, 50-375 Wrocław, Poland
email: awon-grab@ekonom.ar.wroc.pl

Andrzej Kotecki
Department of Plant Cultivation,
Wrocław University of Environmental and Life Sciences, Poland
pl. Grunwaldzki 24a, 50-363 Wrocław
email: andrzej.kotecki@up.wroc.pl

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