Effects Of Plant Population On Some Of Morph Physiological Characteristics Of Two Common Bean (Phaseolus Vulgaris L.) Cultivars
2007
Torabi Jafroudi, A., Former Graduate Student, | Hasanzadeh, A., Assistant Prof of West Azarbaijan Agricultural Research Center, | Fayaz Moghaddam, A., Assistant Prof of Faculty of Agriculture of Urmia University
In order to investigation the effects of plant population on some of morphological and physiological characteristics and grain yield of common bean (Phaseolus vulgaris L.) cultivars, an experiment was conducted at the Research Farm, Faculty of Agriculture Urmia University during 2002. A split plot factorial design, completely randomized block design with three replications was used. The main plots were assigned to three levels of row spacing (30, 45 and 60 cm) and sub plots included two common bean (Naz and Derakhshan) cultivars and three plant spacing (5, 10 and 15 cm). Growth indices (CGR and RGR) were analyzed based on growth degree days (GDD). Results showed that effects of row spacing and plant spacing on biological and grain yield were significant at 1% level. With increasing of row and plant spacing grain and biological yield, also increased. Statistical analysis showed that there were significant differences among cultivars for grain and biological yield and Naz cultivar produced higher biological and grain yield than Derakhshan cultivar. In vegetative traits, row spacing effect on the number of sub branches and it increased with increasing row spacing. By increasing plant spacing, number of sub branches, the length and the number of nodes per sub branches increased. Investigation of growth indices showed that by decreasing plant spacing, CGR was increased.
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