The Effect of Density on Morphological Indices, Yield and Poretin Content in Four Grain Sorghum Varieties
Subject Areas : Journal of Plant Ecophysiology
1 - عضو هیئت علمی دانشگاه پیام نور
Keywords: "Density", " Variety", "Grain yield", "Morphological characteristics", "Grain sorghum ",
Abstract :
In order to study the effect of density on morphological indices, yield and poretin content in four grain sorghum varieties an experiment was conducted in a compeletely randomized block design with factorial arrangement and 3 replications in Experimental Field of Birjand Azad University at 2012 .Four varieties including “Sepideh, Saravan local, Payam and Kimia” and 3 density including 100000 , 180000 and 260000 plant/ha were the subject of the experiment.The results showed that (a) the highest height , number of node and main branch number per panicle were observed in Saravan local variety ,(b) the highest diameter of stem , length of peduncle, diameter of peduncle and flag leaf area were observed in kimia varity ,(c) the highest tiller number and length of internode were in payam varity and (d) the highest panicle lenght were obsereved in Sepideh . Varieties were significantly different for grain yield and protein percentage, the highest grain yield in Saravan local varirty and the highest protein percentage communally in Payam and Kimia varieties were observed. Characteristics such as diameter of stem , length of panicle , main branch numbers per panicle , length of peduncle and diameter of peduncle were affected by density . Increase of density cause to increase of grain yield but were not affected density protein percentage. According to the results in order to obtain the maximum of grain yield we can plant Saravan local variety at density of 260000 plant/ha
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