Saeed Sadeghzadeh Hemayati; Vodod Saidnia; Ghasem Parmoon
Abstract
This study was conducted to investigate the role of application of sulfur and zinc on commercial seed yield of sugar beet Monogerm cultivar in a factorial experiment based on randomized complete block design with three replications. The experimental treatments included sulfur (0, 200, and 400 kg/ha) ...
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This study was conducted to investigate the role of application of sulfur and zinc on commercial seed yield of sugar beet Monogerm cultivar in a factorial experiment based on randomized complete block design with three replications. The experimental treatments included sulfur (0, 200, and 400 kg/ha) and zinc (0, 20, and 40 kg/ha). The results showed that the seed yield and commercial seed yield, as well as the interaction effect of sulfur and zinc, has a significant impact on seed yield alone. With the application of 400 kg/ha sulfur, the raw seed yield increased by 17% and the commercial seed yield increased by 54%. The highest raw seed yield (3443 kg/ha) was obtained with the application of 400 kg/ha of sulfur and 40 kg/ha of zinc. The simultaneous application of sulfur and zinc led to an increase in the proportion of oversized seeds and standard seeds, and a decrease in the proportion of undersized seeds. The highest percentage of oversized seeds was obtained with the application of 400 kg/ha of sulfur and 20 kg/ha of zinc, The application of 400 kg/ha of sulfur resulted in a 12% and 6% increase in mechanical and p sulfur improved both the quantitative and qualitative aspects of sugar beet seed production, while zinc did not have much influence and only increased the quantity of seed produced. Under the conditions of this study, the combination of 400 kg/ha of sulfur and 40 kg/ha of zinc was recommended.
Saeideh Maleki Farahani; Shapur Shekari
Abstract
This experiment was conducted to to evaluate effect of sowing date and seed hydropriming on, seed cotton yield, lint and seed oil of two cotton cultivars using a factorial experiment based on randomized complete block design in three replications at the Research Farm of Shahid University's Faculty of ...
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This experiment was conducted to to evaluate effect of sowing date and seed hydropriming on, seed cotton yield, lint and seed oil of two cotton cultivars using a factorial experiment based on randomized complete block design in three replications at the Research Farm of Shahid University's Faculty of Agriculture in the spring of 2018. The first factor was sowing date with three levels: April 25, May 10 and May 25, the second factor was hydropriming in two levels of control (without priming) and hydro-priming application and the third factor was cultivar with two levels of May344 and Sajidi cultivars.the Results of this study showed that hydropriming had no effects on weight of single boll. The weight of bolls on the sowing date of May 25 compared to April 25 was higher in the condition without priming in both cultivars. But hydropriming increased seed yield. The highest seed yield was obtained with average 11.07 ton/ha in the primed seeds of May344 variety on April 25, which were more 26% increase compared to the non-priming treatment and compared to May 10 and May 25, respectively 9.7 and 28.8 percent. The comparison results of the average sowing date and priming showed that the planting date of 10 May had the highest percentage of seed oil. Highest percentage of oil with an average of 23.4% was observed on this sowing date and in without priming treatment.
H. Khazaei
Abstract
In order to evaluatethe the effects of planting arrangment and methods on quantitative and qualitative characteristics of tomato seed (Lycopersiconesculentum, cv. Karoon), a factorial experiment carried out based on a randomized complete block design with three replications at two locations of Khorasan ...
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In order to evaluatethe the effects of planting arrangment and methods on quantitative and qualitative characteristics of tomato seed (Lycopersiconesculentum, cv. Karoon), a factorial experiment carried out based on a randomized complete block design with three replications at two locations of Khorasan Razavi province in 2012. Three inter row space including 120, 140 and 160 centimeters, three intra plant space including 30, 40 and 50 centimeters, and also two planting methods including one and two row per ridge were selected as treatments. Traits under consideration were fruit and seed yield, number of fruit per plant, number of seed per fruit, thousand seed weight, hectolitre weight, percentage and rate of germination. Compound analysis of variance for locations showed that increasing in inter row space from 120 to 160 centimeters had a significant increase in number of fruit per plant and number of seed per fruit 11.4 and 9.6 percent, respectively. Decreasing in intra plant space from 50 to 30 centimeters showed a significant decrease in number of fruit per plant, number of seed per fruit, thousand seed weight and hectolitre weight 20.7, 11.1, 4.5 and 3.9 percent, respectively. Two row per ridge had a significant decreasing in number of fruit per plant, number of seed per fruit, thousand seed weight and hectolitre weight 6.3, 7.8, 4.1 and 1.8 percent, respectively. The highest and lowest fruit and seed yield were obtained in Rokh (two row per ridge and 120×30 cm planting pattern) and Toroq (one row per ridge and 140×50 cm planting pattern) regions, respectively with 2.7 and 3.1 times difference. Generally, two row arrangement method and 150×30 centimeters planting pattern have positive effect on seed quantity and quality criteria.
