Agriculture
Mohhamad Reza Hrivandi; Parviz Rezvani Moghaddam; Surur Khorramdel; A. A. Moayedi
Abstract
In order to investigate the effect of spreading time and application rates of wheat straw as mulch on Saffron corm and flower yield, a field experiment was conducted as factorial layout based on randomized complete block design with three replications at Gonabad Agricultural and Natural Resources Research ...
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In order to investigate the effect of spreading time and application rates of wheat straw as mulch on Saffron corm and flower yield, a field experiment was conducted as factorial layout based on randomized complete block design with three replications at Gonabad Agricultural and Natural Resources Research Station, Center for Research and Agricultural Education and Natural Resources of Khorasan Razavi in years 2015-16. The treatments were all combination of wheat straw in four levels (2, 4, 6 and 8 t.ha-1) and time of wheat straw spreading in three dates (22 June, 6 July and 23August). The results showed that the rate and time of straw application and their interaction had significant effect on all studied characteristics of saffron flower. Spreading of wheat straw at 22 June compared to 6 July and 23August had the highest significant effect on increasing flower number, fresh flower yield, dry stigma and style yield (up to 41.7, 16.9 and 50 percent, respectively). In addition, all studied criteria of saffron replacement corms were significantly affected by the time of wheat straw spreading, different levels of wheat straw application and their interactions. Among the studied treatments, the highest corm yield in terms of more than 8g (595.65 g) and total saffron replacement corms yield were obtained in applying 8 t.ha-1 wheat straw at 22 June (1163 g). Compared to the treatment of 2 tons per hectare, the remnants on the same date show an increase of 112.2 and 12.9 percent, respectively.
Agriculture
Mohsen Razavian; Parviz Rezvani Moghaddam; Ghorban Ali Asadi
Abstract
In order to study the effects of different weights of mother corm and sowing depth on flower and corm yield of saffron (Crocus sativus L.), an experiment was conducted as a factorial layout based on complete randomized block design with three replications at the Agricultural Research Station, Faculty ...
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In order to study the effects of different weights of mother corm and sowing depth on flower and corm yield of saffron (Crocus sativus L.), an experiment was conducted as a factorial layout based on complete randomized block design with three replications at the Agricultural Research Station, Faculty of Agriculture, Ferdowsi University of Mashhad, Iran during 2015-2016 growing seasons. The experimental treatments were all combination of four mother corm weights (4-6, 6.1-8, 8.1-10 and 10.1-12 g) and three planting depths (10, 15 and 20 cm). In the first year, criteria such as flower and corms yield were evaluated, and in the second year only flower yield were recorded. The result revealed that in both years the interaction between corm weight and planting depths was significant on most traits of the studied flower. Flower, stigma and style yield significantly increased by increasing corm weight and planting depth. The maximum dry stigma yield was obtained in 10.1-12 g corm weight and 20 cm planting depth which was 0.1095 and 0.5393 g.m-2 in the first and the second year, respectively. The interaction between treatments was not significant on daughter corm but the individual effects of each treatment was significant. The higher corm yield (1181.6 g.m-2) was related to 10.1-12 g corm weight treatment. Deeper planting (20 cm) produced the high corm yield (938.86 g.m-2). Eventually, the high excellence of yield in corm weight and planting depth treatments of higher, we recommend corms with higher weight and deeper sowing depth for cultivating saffron.
Agriculture
Hamidreza Zabihi; Hasan Feizi
Abstract
In order to investigate the response of saffron to rate and time of application and two kinds of potassium (K) fertilizers, a factorial experiment was conducted with three factors, including the amount of potassium (0, 20.75, 41.5, 65.25, 83 and 103.75 kg K.ha-1); time of application (annual application ...
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In order to investigate the response of saffron to rate and time of application and two kinds of potassium (K) fertilizers, a factorial experiment was conducted with three factors, including the amount of potassium (0, 20.75, 41.5, 65.25, 83 and 103.75 kg K.ha-1); time of application (annual application of K, and application of cumulative potassium needed for 4 years in the first year; these plots received 415, 332, 249, 166, 83, 0 Kg K.ha-1,respectively in the first year and at other three years not received any K fertilizer); and sources of potassium (K2SO4 and KCl) with three replications in a randomized complete block design in Gonabad agriculture and natural resource research station for 4 years. Results of the first year were not analyzed, because these results not related to fertilizer treatments.Results showed that effect of potassium rate on saffron dry stigma was significant (P<0.05) and the highest dry stigma yield was obtained from application of 20.75 Kg K.ha-1.Application time of K fertilizer had a significant effect on saffron dry stigma yield and application of fertilizer each year increased saffron dry stigma yield significantly (P<0.05) in compared to application of all fertilizer at the first year. Effects of sources of K on dry stigma yield of saffron was significant (P<0.05) and application of K in the form of K2SO4 increased dry stigma yield in compared to muriate of KCl treatment.
