Paper Information

Journal:   NEW FINDINGS IN AGRICULTURE   SUMMER 2009 , Volume 3 , Number 4 (12); Page(s) 403 To 411.
 
Paper: 

EFFECT OF SEED INOCULATION WITH NITRAGIN AND DIFFERENT LEVELS OF UREA ON PHYSIOLOGICAL TRAITS AND BIOLOGIC YIELD OF MAIZE, CV. 704 GROWN IN COLD AND SEMI-ARID REGIONS

 
Author(s):  MIRSHEKARI B.*, BASER S., JAVANSHIR A.
 
* ISLAMIC AZAD UNIVERSITY, TABRIZ BRANCH, IRAN
 
Abstract: 

In order to study effect of seed inoculation with nitragin and different levels of urea rate on physiological traits and biologic yield of maize (Zea mays L.), cv. 704, a factorial experiment was conducted based on RBCD. Treatments were six levels of urea rate (0, 30, 60, 90, 120, 150 kg/ha) and seed inoculation with nitragin or non-inoculation. Based on results, when seeds inoculated with nitragin, LAI in corn reduced from 2.4 to 2 in non-inoculated seeds. Treatment of inoculated seeds×application of 60 kg/ha urea had the highest LAI (3.4). The highest chlorophyll content index obtained from interaction of inoculation with nitragin+120 kg/ha urea. Treatments of 150, 120 and 90 kg/ha urea with 212, 202 and 191 g/m2 dry weight of ear had significant difference with control and 30 kg/ha urea rate. Ear weight in inoculated seeds was 10% greater than non-inoculated ones. Biologic yield in corn was affected by seed inoculation and urea rate. The highest corn biomass (27t/ha) obtained from treatment fertilized with 150 kg/ha urea. It is recommended that in order to improvement of forage yield, corn must be inoculated with nitragin and fertilized with 150 kg/ha urea.

 
Keyword(s): BIOLOGICAL YIELD, CHLOROPHYLL, CORN, LAI, NITRAGIN
 
References: 
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