Kamyar Kazemi; Mohammad Khajehosseini; Ahmad Nezami; Hamdollah Eskandari
Abstract
Effect of seed priming on germination and seedling growth of sesame investigated under controlled conditions. The primed seeds with ZnSO4 had the maximum germination percentage whereas the highest germination rate was observed in hydro-primed seeds. The treated seeds with PEG showed the best growth of ...
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Effect of seed priming on germination and seedling growth of sesame investigated under controlled conditions. The primed seeds with ZnSO4 had the maximum germination percentage whereas the highest germination rate was observed in hydro-primed seeds. The treated seeds with PEG showed the best growth of the seedlings and rootlet. The complementary field experiment was conducted to evaluate the effect of seed priming and irrigation intervals on the growth and the yield of sesame. A split plot experiment was carried out based on the RCBD with four replications in a field in Northwest of Shadegan during 2013-14 growing season. Main plots were irrigation intervals (irrigation after 150 and 250 mm evaporation from class-A evaporation pan) and sub plots were eight seed priming levels (as the laboratory test). The maximum plant height was observed in plants from the treated seeds with CaCl2 (5 percent) and irrigated after 150 mm evaporation from pan and the minimum plant height was observed from the no-primed seeds and irrigated after 250 mm evaporation from the pan. The highest and the lowest of 1000-seed weight achieved in plants from the treated seeds with hydro-priming and irrigated after 150 mm evaporation from the pan, and in plants from the non-primed seeds and irrigated after 250 mm evaporation from the pan, respectively. The maximum amounts of biological yield, seed yield, water use efficiency, oil yield, oil percentage and the minimum protein content were achieved in plants from the treated seeds with hydro-priming. Irrigation after 250 mm evaporation from the pan decreased the yield and yield components.
Mohammad Rabiee; Mehrdad Jilani; Shahram Karimy
Abstract
In order to investigate the effect of consumption of nitrogen and phosphorus fertilizers on harvest indices and some important agronomic traits of Triticale (Triticosecale wittmack var. Javaniloo), a factorial experiment based on the randomized complete block design with three replications ...
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In order to investigate the effect of consumption of nitrogen and phosphorus fertilizers on harvest indices and some important agronomic traits of Triticale (Triticosecale wittmack var. Javaniloo), a factorial experiment based on the randomized complete block design with three replications was conducted in paddy field of Rice Research Institute of Iran (Rasht) during 2010-2012 for two years. The first factor was nitrogen in five levels: zero, 50, 100, 150 and 200 kg.ha-1 in the form of urea and phosphorus in four levels: zero, 50, 100 and 150 kg.ha-1 in the form of superphosphate. Results showed that among the nitrogen levels, the treatments of 200 and 150 kg.ha-1 had maximum grain yield (3000.5 and 2999.7 kg.ha-1, respectively), protein yield (442.7 and 449.5 kg.ha-1, respectively) and biological yield (13318 and 12525 kg.ha-1, respectively). Among the levels of phosphorus fertilizer, the treatment of 150 kg.ha-1 showed maximum grain yield (2971.0 kg.ha-1), protein yield (434.4 kg.ha-1) and biological yield (12375 kg.ha-1). Also results showed none of the nitrogen levels had the highest phosphorus and potassium indices. Moreover, with the increasing of nitrogen, phosphorus and potassium indices were reduced. Based on the obtained results, the treatments of 150 kg.ha-1 nitrogen and 150 kg.ha-1 phosphorus are recommended for cultivating triticale in Guilan area due to high grain and protein yields.