Effect of simulated flash flooding on rice and its recovery after flooding with nutrient management strategies

Gautam, Priyanka; Lal, Banwari; Raja, R.; Tripathi, Rahul; Shahid, Mohammad; Baig, M. J.; Puree, Chandrika; Mohanty, S.; Nayak, A. K.

doi:10.1016/j.ecoleng.2015.01.033

Cited by 18 publications

(9 citation statements)

References 23 publications

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“…This study revealed that applying N, P and K fertilizer at 60 and 90 DAG increased grain yield of PCR2 and maintained grain yield of KSM1 and NG5, even though N concentration in their leaves was not markedly changing. Comparison to previous study that N and P application after submergence increased leaf N concentration and yield of IR-20, IR-64 Sub1 and Swarna Sub1 varieties (Gautam et al, 2015). However, earlier studies reported that at the end of recovering period, the difference in leaf N concentration among plants from three flooding depth treatment was small, indicating photosynthetic products in leaves may have been transported to the other parts for recovery (Miao and Zou, 2012;Chen et al, 2013).…”

Section: Discussionmentioning

confidence: 71%

“…However, earlier studies reported that at the end of recovering period, the difference in leaf N concentration among plants from three flooding depth treatment was small, indicating photosynthetic products in leaves may have been transported to the other parts for recovery (Miao and Zou, 2012;Chen et al, 2013). Applying fertilizer at late growth stage could improve grain yield of submerged rice possibly due to the ability of translocation of photosynthetic products from leaves to different parts for plants to recover (Gautam et al, 2015). In opposition, at 30 DAG the N concentration in leaves of PCR2 and NG5 was highest but grain yield was drastically low suggesting that leaf photosynthate transport could be restricted.…”

Section: Discussionmentioning

confidence: 99%

“…The whole plant was collected and dried in an oven at 70°C for 72 h for dry mass measurement. Then, the leaves were separated for nitrogen concentration measurement by Kjeldahl method as described by Gautam et al (2015).…”

Section: Rice Varieties and Growth Conditionsmentioning

confidence: 99%

“…Availability of mineral nutrients for plants growth and development is important (Rouached et al, 2010;Bouain et al, 2014) to ensure a better growth and a high yield. Of these mineral nutrients, N, phosphorus (P) and potassium (K) are known to plays important role in regulation of rice plants growth being involved in photosynthetic activity, a key process that drive high grain yield (Yoshida, 1981;Gautam et al, 2015). N is usually first added during rice cultivation and only then mixed-fertilizers N-P-K can be applied, approximately 20 days before heading to improve yield (Yoshida, 1981).…”

Section: Introductionmentioning

confidence: 99%

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The Time of Flooding Occurrence is Critical for Yield Production in Rice and Vary in a Genotype-Dependent Manner

Mongon

Jantasorn

Oupkaew

et al. 2017

OnLine Journal of Biological Sciences

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Flash floods occur in rainfed lowland and flood-prone areas and have a profound incidence on crop yield, which is tightly linked to worldwide food insecurity. The most flooding-threatened crop is rice. Under this condition, rice undergoes anoxic and post-anoxic shock that affects its growth, development capacity and ultimately causes an important grain yield loss. Therefore, the introduction of submergence-tolerant varieties in a flood-prone area was proposed as a preventive solution to limit these effects. Such a solution presents room for improvement and would benefit from a post-submergence management to ensure a better rice yield, yet remains to be defined. In this study, we assessed the effect of flooding on growth and yield of different rice varieties submerged at a different time of their developmental stage. We compared three rice varieties, namely Prachinburi 2 (PCR2), Kao Samer 1 (KSM1) and Neang Guang 5 (NG5), for their tolerance to 14 days of 50 cm depth submergence at 30, 60 and 90 Days After Germination (DAG). At 30 DAG, the recovery ability of KSM1 was restricted, showing decreased shoot dry mass and grain yield, whereas photo assimilate transport of PCR2 and NG5 was altered, resulting in high leaf nitrogen (N) concentration but low grain yield. Our data revealed that rice varieties were more tolerant to submergence at 60 and 90 DAG. In opposition to KSM1 and NG5 grain yield, PCR2 showed rapid recovery with a marked increase of shoot dry mass and grain yield. Taken together, our result indicates that de-submergence at late developmental stage promotes rice recovery and yield of tolerant variety. Gene discovery work is required to identify molecular players and pathways that are involved in submergence stress recovery in rice.

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Section: Discussionmentioning

confidence: 71%

Section: Discussionmentioning

confidence: 99%

Section: Rice Varieties and Growth Conditionsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The Time of Flooding Occurrence is Critical for Yield Production in Rice and Vary in a Genotype-Dependent Manner

Mongon

Jantasorn

Oupkaew

et al. 2017

OnLine Journal of Biological Sciences

View full text Add to dashboard Cite

show abstract

“…Application of higher dose of potassium to the rice field increased the survival of rice after submergence (Dwivedi et al, 2017). Furthermore, in a previous study, the basal application of P enhanced for the development of effective tillers (Gautam et al, 2015). Therefore, application of proper nutrient management helps in alleviation of damage caused by submergence.…”

Section: Discussionmentioning

confidence: 85%