Evaluation of yield and grain filling components of triticale (X Triticosecale Witt.) affected by application of mycorrhizal fungi, vermicompost and nano-silicon under water deficit conditions
| Autor: | Zhila Nazari, Raouf Seyed Sharifi, Mohammad Sedghi, Hamed Narimani |
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| Jazyk: | perština |
| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | تنش های محیطی در علوم زراعی, Vol 16, Iss 1, Pp 53-69 (2023) |
| Druh dokumentu: | article |
| ISSN: | 2228-7604 2383-3084 |
| DOI: | 10.22077/escs.2021.4322.2009 |
| Popis: | IntroductionDrought stress is one of the most important abiotic factors that can limit plant growth and yield. The response of plants to water limitation has been evaluated based on genetic, biochemical and morpho-physiological traits. Several strategies have been developed in order to decrease the toxic effects caused by severe water limitation on plant growth. Among them the use of bio-fertilizers (such as mycorrhizae and vermicompost) and nano-silicon play a key role in yield improvement. The aim of this study was to investigate the effects of irrigation withholding in reproductive stages and nano-silicon and bio-fertilizers application on grain filling period, chlorophyll content and grain yield of triticale.Materials and methodsIn order to study the effect of vermicompost, mycorrhizae and nano-silicon on yield and chlorophyll content of triticale under water limitation conditions, an experiment was conducted as factorial based on randomized complete block design with three replications in greenhouse research of faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili in 2020. Experimental factors were included irrigation limitation at three levels (full irrigation as control, irrigation withholding in 50 percent of heading and booting stages as moderate and severe water limitation, respectively), bio-fertilizers application at four levels (no application of bio-fertilizers as control, application of vermicompost, mycorrhizae, and both application of vermicompost and mycorrhizae) and foliar application of nano-silicon (2 g.L-1 of nano-silicon and water-sprayed as control). Sanabad cultivar was used in the experiment with plant density of 400 seed m-2. Chlorophyll and carotenoids content were obtained according to Arnon (1949).To study the grain filling parameters in each sampling, two plants in each pot were taken. The first sampling was taken on day 8 after heading, and other samplings were taken in 4-days intervals to determine the accumulation of grain weight. At each sampling, grains were removed from spikes manually and were dried at 75°C for 48 h. A two-part linear model was used to quantifying the grain filling parameters. Total duration of grain filling was determined for each treatment combination by fitting a bilinear model:GW = [a + gfr(daa), ... ... if ... daa |
| Databáze: | Directory of Open Access Journals |
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