Alireza Koocheki; Mahdi Nasiri Mahalati; Golsoomeh Azizi; Asiyeh Siahmarguee
Abstract
Abstract
In order to investigate the effects of nutrient resources and weed management on qualitative and quantitative criteria of cat tyme (Teucrium polium), an experiment was conducted as split plot based on a complete randomized block design with 3 replications at the agricultural research station, ...
Read More
Abstract
In order to investigate the effects of nutrient resources and weed management on qualitative and quantitative criteria of cat tyme (Teucrium polium), an experiment was conducted as split plot based on a complete randomized block design with 3 replications at the agricultural research station, Ferdowsi University of Mashhad, Iran, during the years 2008 and 2009. Treatments included different nutrient resources: manure fertilizer (10 ton/ha), chemical fertilizer (based on the amount of macro elements existing in manure fertilizer), Nitroxin biological fertilizer (4 l/ha), Manure fertilizer (10 ton/ha) plus chemical fertilizer (based on the amount of macro elements existing in manure fertilizer), Nitroxin biological fertilizer (4 l/ha) plus manure fertilizer (10 ton/ha) and control (no fertilizer) under weed infested and weed free conditions. Weed management was located in main plots and nutrient resource in sub plots. In the first year, the highest height of plant was observed in manure + chemical fertilizer treatment (26.3 cm) and the lowest in manure + Nitroxin fertilizer treatment (14.8 cm). The results indicated that there was not significant different between treatments for shoot and crown diameter of cat tyme, in the first year. But in the second year, type of nutrient resource and weed management affected shoot and diameter significantly. The highest and the lowest shoot number was observed in manure+chemical fertilizer under weed free condition (88.5) and control under weed infested condition (38.2), respectively. The highest and the lowest diameter of Teucrium polium were obtained in manure fertilizer (48.4cm) and control (28.6 cm) under weed free condition treatments, respectively. In the first year, the highest of leaf and flower dry matter was observed in manure+chemical fertilizer treatment under weed free condition with 2889 kg/ha. In second year, maximum yield was obtained in Nitroxin biological fertilizer under weed free condition (3261 kg/ha). In the first year, the maximum percentage and yield of essential oil was obtained in chemical fertilizer and manure+Nitroxin treatments under weed free condition. In the second year, the highest essential oil percentage was observed in plants treated with Nitroxin and manure+chemical fertilizer under weed infested condition.
Keywords: Nutrient resource, Weed, Teucrium polium, Quantitative criteria, Essential oil
Asiyeh Siahmarguee; Golsoomeh Azizi; Ahmad Nezami; Maryam Jahani Kondori
Abstract
Abstract
In order to investigate the freezing tolerance of field grown Fennel (fueniculum vulgare mill) under controlled conditions, a factorial experiment based on completely randomized design was conducted with three replications in Agricultural College, Ferdowsi University of Mashhad in 2004. Treatments ...
Read More
Abstract
In order to investigate the freezing tolerance of field grown Fennel (fueniculum vulgare mill) under controlled conditions, a factorial experiment based on completely randomized design was conducted with three replications in Agricultural College, Ferdowsi University of Mashhad in 2004. Treatments were two fennel ecotypes (Khorasan and Kerman), two planting dates (Oct 8th and 29th ) and six temperatures (0,-3,-6,-9,-12,-15°C). Plants were harvested from the field on Des 7th in controlled conditions exposed to the freezing temperature. Plant survival percentage and re growth after 21 days under the greenhouse and plant necrosis degree after the six days under the lab condition were evaluated. Greenhouse results showed that there wasn’t significantly different between Khorasan and Kerman ecotypes for survival percentage, height and number of nod but Kerman ecotype had the higher leaf number than Khorasan ecotypes. Planting date had significantly effect on survival percentage, height, number of leaf, number of nod and percentage of plant dry weight. So 29 October planting date was higher than 8 October in the entire measured criteria. With lowering the temperature, survival percentage, height, number of leaf, number of node and dry weight had decreased trend. There was significantly different between planting dates on plant necrosis degree of plant in 6th day under the lab conditions. Necrosis degree for 29 October and 8 October. planting date was 3.4 and 2.8% respectively. The highest necrosis degree was shown in -150C freezing treatment that it was twice than necrosis degree in 00C .
Keywords: Height, Necrosis degree, Survival percentage, Dry weight
