Wheat seedlings growth response to water deficiency and how it correlates with adult plant tolerance to drought

Dodig, Dejan; Zorić, Miroslav; Miroslava, Jović; Kandić, Vesna; Stanisavljević, Rade; Šurlan-Momirović, Gordana

doi:10.1017/s002185961400029x

Cited by 24 publications

(24 citation statements)

References 43 publications

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“…This confirmed the work on sugar beet of Sadeghian and Yavari [25] who reported that seedling growth severely diminished under drought stress however genetic differences were monitored among the varieties. Moreover, Dodig et al [26] showed on their works on wheat that, the effect of drought stress was most informative for differentiating between the genotypes for the studied seedling traits. In water stress in all phases (W5), reduction in performance of seeds was more intense for SE ( Table 2); similar to the results obtained for the variables seedling fresh weight (SFW) and seedling dry weight (SDW).…”

Section: Discussionmentioning

confidence: 99%

Performance of Sesame Seeds Produced from Plants Subjected to Water Stress for Early Selection of Tolerant Genotypes

Ekom

Guidjinga

Memena

et al. 2019

IJPSS

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Intra-seasonal drought episodes during the life cycle of plant growth of sesame affect physiological quality of seeds harvested. For this purpose, in this study, we explored the following water treatments: W1 (Irrigation throughout the cycle, non-stress treatment), W2 (water stress at the vegetative growth phase), W3 (water stress at the flowering to early pod formation), W4 (water stress at the fruit maturation phase) and W5 (water stress in all phases); for their effect on germination capacity and seedling from the produced seeds of four sesame varieties (“SN 203”, “SN 403”, “SN 01-06” and “Ngong”). Such studies allowed evaluating the performance of the seeds harvested from the plants subjected to water stress availability during the different phenological phases of each variety. The produced seeds were evaluated by reduction rate (%) of germination percentage, first germination count, germination speed index, mean germination time, coefficient of velocity of germination, seedling emergence, seedling length, seedling fresh weight and seedling dry weight. In general, sesame seeds from plants grown under water deficit display reduction in performance. In water stress at the fruit maturation phase (W4) and water stress in all phases (W5), the sesame varieties tested are more sensitive for both germination capacity and seedling and for seedling respectively; so that water limitation during these periods results in the production of seeds with reduction in performance more intense. Among the varieties tested, “SN 01-06” and “Ngong” were the most tolerant genotypes. These results will be used for extension of sesame and for genetic improvement program.

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Section: Discussionmentioning

confidence: 99%

Performance of Sesame Seeds Produced from Plants Subjected to Water Stress for Early Selection of Tolerant Genotypes

Ekom

Guidjinga

Memena

et al. 2019

IJPSS

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“…On the other hand, several studies in other crop species (e.g. Beshir et al, 2016;Dodig et al, 2015), including in cowpea (Singh et al, 1999), have revealed a close correspondence of drought tolerance observed in seedlings and reproductive stage plants. Different seed germination and seedling emergence capacities were displayed by distinct cowpea genotypes under stress conditions.…”

Section: Tablementioning

confidence: 92%

Screening of worldwide cowpea collection to drought tolerant at a germination stage

Carvalho

Matos

Castro

et al. 2019

Scientia Horticulturae

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Global warming has an increasing impact on the availability of water for agriculture. Crops tolerant to high temperatures and drought, such as cowpea (Vigna unguiculata L. Walp.), have an added value in the near future. The main objective of this study was to evaluate the effect of drought on seed germination and seedling emergence of cowpea genotypes, in order to screen the most tolerant genotypes. Seeds from 58 cowpea genotypes all over the world were submitted to two stress conditions, induced by PEG-6000 (corresponding to osmotic potentials of −0.75 bars and −1.5 bars). Germination and seedling growth parameters, vigor index and proline content were determined to assess drought tolerance. The results revealed significant differences of all parameters among genotypes after treatments and interaction of both. Water stress caused a general decrease in germination and seedling growth, while an increase in proline content was observed. A high variation of drought responses were detected among genotypes, being possible to select seven genotypes (C11, C18, C44, C46, C47, C50 and C54) as tolerant to drought at germination stage. These results will be useful to select the best suitable parents for insertion in future breeding programs.

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“…Drought conditions at early growth stages are known to reduce seed germination percentage and rate and it can affect negatively seedling establishment. The developing plants will have poor tillering capacity leading to fewer plants and tillers per unit area and thus lower yield potential [7]. Additionally, drought at the period of stem elongation causes reduction in number of grains per unit area due to it is negative effect on floret formation and fertility [7,8].…”

Section: Introductionmentioning

confidence: 99%

“…The developing plants will have poor tillering capacity leading to fewer plants and tillers per unit area and thus lower yield potential [7]. Additionally, drought at the period of stem elongation causes reduction in number of grains per unit area due to it is negative effect on floret formation and fertility [7,8]. Post-anthesis drought conditions reduce the grain filling rate and duration and this will result in shriveled grains [9].…”

Section: Introductionmentioning

confidence: 99%

Impact of Pre-Anthesis Water Deficit on Yield and Yield Components in Barley (Hordeum vulgare L.) Plants Grown under Controlled Conditions

et al. 2016

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Drought at pre-anthesis stages can influence barley growth and results in yield losses. Therefore, it is important to understand how drought at pre-anthesis can affect different traits associated with yield reduction in barley. The objective of this study was to understand the relevance of the genetic background of major flowering time genes in barley plants subjected to pre-anthesis drought and its impact on yield and yield components. A glasshouse experiment using a Randomized Complete Block Design was conducted to investigate the effect of drought and its timing on yield and yield components on eleven barley genotypes, which were selected to represent genetic diversity of major flowering time genes (PPDH1, PPDH2, HvVrn1, HvVrn2 and HvVrn3). Barley plants were exposed to three water regimes, non-stressed and stressed, which was applied at two pre-anthesis growth stages, tillering (SS) and stem elongation (SE). Results identified differences among genotypes in all measured traits. Grain yield, grain number and "thousand kernel weight" were reduced in all genotypes due to drought, irrespective of the growth stage. Early flowering genotypes had better performance as reflected in higher yield compared with late flowering genotypes. Results verified the fundamental importance of early flowering to improve productivity in response to pre-anthesis drought. The results of this study can help in selecting barley lines for future breeding purposes with improved resilience to drought conditions in Mediterranean environments.

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Wheat seedlings growth response to water deficiency and how it correlates with adult plant tolerance to drought

Cited by 24 publications

References 43 publications

Performance of Sesame Seeds Produced from Plants Subjected to Water Stress for Early Selection of Tolerant Genotypes

Performance of Sesame Seeds Produced from Plants Subjected to Water Stress for Early Selection of Tolerant Genotypes

Screening of worldwide cowpea collection to drought tolerant at a germination stage

Impact of Pre-Anthesis Water Deficit on Yield and Yield Components in Barley (Hordeum vulgare L.) Plants Grown under Controlled Conditions

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