Esazadeh panjali kharabasi, Jaber (2012) Effect of Methanol spray on quality and quantity traits of Soybean in drought stress condition. Masters thesis, University of Zabol.
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Abstract
In order to evaluate the effects of drought stress and spraying methanol on the quantity and quality traits in soybean, an experiment was done as split plot in a randomized complete block design with three replications at Research center in Faculty of Agriculture of Moghan. Treatments included three levels of drought stress, S1= 40percent of available soil moisture depletion (control), S2= 55percent of available soil moisture depletion, S3=70percent of available soil moisture depletion as main plots and four levels of methanol, including M1= without spraying of methanol (control), M2= spraying with 7 volumetric percentage of methanol, M3= spraying with 21 volumetric percentage of methanol and M4= spraying with 35 volumetric percentage of methanol as subplots. The Results showed that there was a more significant differences affected by drought stress treatments for quantity traits such as: number of seeds per pod, number of pods per plant, number of seeds per plant, pod length, thousand seed weight, stem diameter, number of leaf, leaf area, plant height, number of branch, biological yield, grain yield, and harvest index. The Results showed that the increasing of drought stress, would increase the percentage of seed oil, soluble carbohydrates and decreased other traits, so that depletion of 70percent of available soil moisture decrease 51.2percentage of grain yield. Also the Results showed that, the methanol spray has significant effect on the number of pods per plant, number of seeds per plant, number of leaf, thousand seed weight, plant height, leaf area, number of branch, biological yield, grain yield and chlorophyll content at 1percent probabilities level and there was a significant difference for the number of seeds per pod, pod length, percentage of seed protein, soluble carbohydrates, stomata conductance and praline content at 5percent probabilities level. The results indicated that the highest values were obtained by 21 volumetric percentage of methanol spray, in this treatment the grain yield was 25.6 percent more than the control. With the increasing amount of methanol from 21 to 35 volumetric percentage of methanol was reduced yield, which is probably due to the negative effects of methanol in the high concentration of methanol. Interactions of drought stress and methanol spray on traits were not significant.
| Item Type: | Thesis (Masters) |
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| Uncontrolled Keywords: | Irrigation, depletion water, prolin, leaf area, grain yield |
| Subjects: | S Agriculture > SB Plant culture |
| Depositing User: | admin admin1 admin2 |
| Date Deposited: | 23 May 2016 06:55 |
| Last Modified: | 23 May 2016 06:55 |
| URI: | http://eprints.uoz.ac.ir/id/eprint/627 |
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