Journal of Food, Agriculture and Environment

The growth characters in different types of dry bean cultivars

Author(s):

Foto Kashta *, Agim Canko, Pellumb Harizaj, Vladimir Bano

Recieved Date: 2012-06-08, Accepted Date: 2012-09-24

Abstract:

Common bean (white bean) is considered a staple crop in Albania due to its high protein content. Over last few years the production of common bean in Albania has significantly declined due to heat and drought stresses during the maturity season. The effects of the above mentioned stresses are different since the cultivars have different length of life cycle. As a consequence of this, the maturity stage of different common bean cultivars coincides with different climatic conditions. A better understanding of plant physiology basics might be helpful in better understanding the internal physiological mechanisms influencing the yield potential of common bean cultivars. In respect to this, three cultivars which represent two different biological types have been tested. Based on the accumulation of plant dry matter and leaf area size during the different developmental stages, some physiological traits of growth are calculated. According to our data, cultivars Shijak and Cocoblank had similar leaf area index (LAI) during the vegetative period, but at the end of their life cycle, Cocoblank showed a higher leaf area index which is due to a later growth and erect plant type of this cultivar. This cultivar had also a higher yielding ability than Shijak, but  in the end of the growing season it yielded less than Shijak due to heat stress. Even though both cultivars accumulate similar dry matter, Shijak has a higher rate for the dry matter distribution, i.e. it has higher efficiency of the dry matter utilization. Cocoblank is not longer suitable for cultivation in the coastal part of Albania, but it can be grown in other regions which have a temperate climate, especially during the maturity period. 

Keywords:

Dry bean, growth characters, LAI, RGR, CGR, NAR

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Journal: Journal of Food, Agriculture and Environment
Year: 2012
Volume: 10
Issue: 3&4
Category: Agriculture
Pages: 323-327

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