Javad Hasanpour; Kaveh Zargari; Behnam Zand; mojtaba kanani
Abstract
In order to study the effects of planting date and cultivar on yield, protein percentage and physiological growth indices of Mungbean an experiment was conducted in Agriculture and Natural Resource Research Center of Tehran province in 2011-12. Four mungbean [Vigna radiata (L.) Wilczek] cultivars (‘Parto’, ...
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In order to study the effects of planting date and cultivar on yield, protein percentage and physiological growth indices of Mungbean an experiment was conducted in Agriculture and Natural Resource Research Center of Tehran province in 2011-12. Four mungbean [Vigna radiata (L.) Wilczek] cultivars (‘Parto’, ‘Gohar’, ‘Mehr’ and a promising line ‘NM-94’) were sown at 3 dates with 30 days intervals starting from 21 April to 22 June to identify the suitable variety(s) and optimum sowing date for getting maximum yield of mungbean. The design was a split-plot replicated three times with sowing date as main plots and cultivar as sub-plots. Promising line ‘NM-94’ was ranked first in terms of seed yield (1797.4 kg ha-1) followed in order of ‘Gohar’ (1674.8 kg ha-1). The highest seed yield (1678.2 kg ha-1) was obtained from 22 June sowing date. Delayed sowing caused to decrease of growth period length from 92.9 (for 22 April) to 82.6 (for 22 June) that it resulted to a significant decrease of vegetative growth indices such as plant height and biological yield. The maximum LAI and CGR were obtained at a longer time and had more value for earlier sowing dates. The growth period length decreased for the last sowing date, but early entering to flowering stage increased grain filling portion from total growth period. Sowing date had not a significant effect on protein percentage, but this effect was significant for varieties. ‘NM-94’ line and 22 June were the best choices for south east region of Tehran province.
Arefe Razzazi; Majid Aghaalikhani; Barat Ghibadian; Behnam Zand; Sayyed Mohammad Safyeddin Ardabili
Abstract
Castor bean (Ricinus communis L.( with a capability to withstand harsh conditions, low nutritional needs, 50 percent of oil content and high- quality, is one of the best crop used to produce biodiesel. The first step toward introduction and widespread cultivation of this crop is to investigate the energy ...
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Castor bean (Ricinus communis L.( with a capability to withstand harsh conditions, low nutritional needs, 50 percent of oil content and high- quality, is one of the best crop used to produce biodiesel. The first step toward introduction and widespread cultivation of this crop is to investigate the energy balance for its cultivation. To do so, energy input (include renewable and nonrenewable) and output were calculated through an examination of all inputs during two consecutive years of cultivation (2012-2014) in Varamin county in Tehran province. Energy indicators were also assessed. Result showed Indirect, non-renewable sources of energy with 59.68 and 80.86 percent of 11245.64 MJ energy consumption, comprise the major part of the consumable energy in castor bean cultivation. Moreover, among inputs fertilizers and pesticides with the share of 55.26 percent of the total consumable energy considered as the highest energy inputs. Fuels with the share of 21.28 percent formed placed at the second rank of consumable energy. Energy use efficiency in seed production was calculated to be 3.81, which is a considerable amount when compared with other crops used to produce biodiesel. Therefore, in order to expand the cost efficient and mechanized system of castor production, breeding of the current local ecotypes is recommended.