F. Ghobadi; M. Ghorbani Javid; A. Sorooshzadeh
Abstract
This research was aimed to evaluate the flower and stigma yield as well as growth traits of saffron (Crocus sativus L.) under effect of planting dates and corm size. The experiment was factorial in a complete randomized design with three replicates, conducted at the research farm of College of Aburaihan, ...
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This research was aimed to evaluate the flower and stigma yield as well as growth traits of saffron (Crocus sativus L.) under effect of planting dates and corm size. The experiment was factorial in a complete randomized design with three replicates, conducted at the research farm of College of Aburaihan, University of Tehran during 2013-2014. The treatments consisted of four planting dates (June 10th, September 7th and 27th, and October 12th) and two corm weights (5-9 g and 10-14 g). Our results showed that the flower and stigma yield of large corms, planted on June 10th, was 50% higher as compared with other planting dates, and on September 27th, the yield was 25% higher. However, this difference was not significant in comparison with September 7th. The lowest flower and stigma yield was recorded for the planting date of October 12th in comparison with other planting dates, and these traits were higher in large corms as compared with small ones in all planting dates. The flower length and number of buds on June 10th were higher than that of others. In addition, the highest leaf dry weight and length in primary and secondary buds were recorded for the planting dates of June 10th and September 6th, which could be effective in production of daughter corms in the next year. The results showed that all growth characteristics in large corms were higher than that of small ones. Overall, these results indicate that the planting of 10-14-gram large corms on June 10th can improve the yield and growth characteristics of saffron in Varamin plain.
M. Govahi; A. Ghalavand; F. Nadjafi; A. Sorooshzadeh
Abstract
Sage, a popular medicinal plant, is widely used in food and pharmaceutical industries. This research was aimed to study the effects of organic and biological fertilizers on physiological characteristics, yield, and essential oil content of sage (Salvia officinalis L.) under different moisture conditions. ...
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Sage, a popular medicinal plant, is widely used in food and pharmaceutical industries. This research was aimed to study the effects of organic and biological fertilizers on physiological characteristics, yield, and essential oil content of sage (Salvia officinalis L.) under different moisture conditions. The study was conducted in a field experiment in split-plot design with 15 treatments and three replications at Tarbiat Modares University in 2012. Treatments included three irrigation levels (irrigation after depletion of 40% available water, irrigation after depletion of 60% available water, and irrigation after depletion of 80% available water) and five different soil fertility systems (control (no fertilizer) (F0), chemical fertilizer (urea) (Ur), nitrogen fixing bacteria (NFB), vermicompost (V), vermicompost + nitrogen fixing bacteria (V+MFB), allocated to main plots and subplots, respectively. Results indicated that the irrigation regimes had significant effect (p 0.01) on all measured traits. Chlorophyll a, b, and dry matter declined with increasing of water stress, but sugar, proline and essential oil content increased. Results showed that the highest values of all measured traits were related to the vermicompost + nitrogen fixing bacteria treatment. In addition, results showed that the highest essential oil percentage (1.10%) and essential oil yield (20.50 l ha-1) were obtained in vermicompost + nitrogen fixing bacteria treatment under moderate drought stress (I2).
S.M. Hosseini; A. Sorooshzadeh; S.A.M. Modares Sanavi
Abstract
The objective of this research was to study the effect of substrate culture, axillary bud removing and mother corm size on daughter corm production and morphological traits of saffron plant (Crocus sativus L.) An experiment was carried out in factorial based on completely randomized design with four ...
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The objective of this research was to study the effect of substrate culture, axillary bud removing and mother corm size on daughter corm production and morphological traits of saffron plant (Crocus sativus L.) An experiment was carried out in factorial based on completely randomized design with four replications. Treatments included mother corm size (large 9.5-11 g or medium 6-7.5 g) substrates (perlite or soil), axillary buds removing (removing all axillary buds or no removing axillary buds). Results showed that the mother corm size had a significant effect on leaf dry weight, root dry weight, total dry weight of plants, daughter corm weight, and number of daughter corms. In addition, the large corms caused an increase in these traits. The highest root dry weight, root number, daughter corm dry weight, and total dry weight of plant were obtained in the perlite substrate. It was observed that the plants grown in the soil produced more as compared to those grown in the perlite. Although, root number and daughter corm size increased by the axillary buds removing, the number of daughter corms decreased by this treatment.
