Evaluation of radiation use efficiency of common bean ([i]Phaseolus vulgaris[/i] L.) cultivars as affected by plant density under Mashhad climatic conditions
Journal Title: Journal of BioScience and Biotechnology - Year 2016, Vol 5, Issue 2
Abstract
In order to determine the effect of different plant densities in bean cultivars, an experiment was conducted as factorial layout based on a randomized complete block design with three replications at Agricultural Research Station, Ferdowsi University of Mashhad, during growing season the 2014-2015. Factors included four bean cultivars (such as Akhtar, D-81083Line, Naz and Goli), and three plant densities (including 13.3, 20 and 40 plants.m[sup]-2[/sup]). Study has addressed some indicators including leaf area index (LAI), amount of absorbed radiation, dry matter accumulation and radiation use efficiency (RUE) in bean cultivars at different plant densities. The trend of increasing dry matter accumulation in all cultivars entered to the linear growth phase on the 20th day after planting and reached to its maximum on the 70th day after planting. The highest dry matter was obtained in Goli (300.4 g.m[sup]-2[/sup]) and Naz (285.1 g.m[sup]-2[/sup]) cultivars which was 32 and 30% higher compared to Akhtar and 30 and 28% higher compared to D-81083 Line cultivar, respectively. The highest radiation use efficiency (2.2 g.MJ[sup]-1[/sup]) was obtained in treatment at density of 40 plants.m[sup]-2[/sup] and was in Goli (2.01 g.MJ[sup]-1[/sup]) and Naz (1.98 g.MJ[sup]-1[/sup]) cultivars. With increasing plant density, maximum leaf area index in bean cultivars increased gradually to its highest level (40 plants.m[sup]-2[/sup]) and due to plants ghosting, continued to decrease. This result can be used for modeling of leaf area. With increasing plant density due to increasing of leaf area index, the amount of absorbed radiation increased and therefore the time to reach maximum dry matter accumulation decreased and dry matter accumulation increased.
Authors and Affiliations
Raheleh Ghavidel, Ghorban Asadi , Mohammad Yazdi , Reza Ghorbani, Surur Khorramdel
Keywords
Related Articles
- EP ID EP154441
- DOI -
- Views 93
- Downloads 0
Study on biological and environmental factors for azoospermia
The absence of sperm in the seminal fluid is known as azoospermia. This medical condition is in a direct association with male's infertility. A complete medical history, physical examination, tests of selected hormones a...
Horse chestnut (Aesculus hippocastanum L.) as a biomonitor of air pollution in the town of Plovdiv (Bulgaria)
The present study is a small part of a program for application the methods of passive and active phytomonitoring with herbaceous species, trees, mosses and lichens for assessment of the anthropogenic factor in urban cond...
Relationship of quantitative traits in different morphotypes of pea (Pisum sativum L.)
Studying the relationships between main quantitative traits gives an opportunity the results of selection on certain traits to be predicted and the breeding process to be improved. In the present investigation, it was ma...
What is known about Cyanoprokaryota and the algal blooms along the Bulgarian Black Sea coast: an overview
This article presents a summary of the research related to the taxonomic composition, algal blooms and toxic potential of representatives from Cyanoprokaryota (Cyanobacteria, Cyanophyta) in the coastal waters of th...
Effects of carbon sources, oxygenation and ethanol on the production of inulinase by Kluyveromyces marxianus YX01
Inulinase is one of the most important factors in consolidated bioprocessing, which combines enzyme production, inulin saccharification, and ethanol fermentation into a single process. In our study, inulinase production...