Effect of high temperature at heading and flowering stage on seed-setting rate of rice recombinant inbreed line population (RIL47)

Zhou, Hao; Hu, Wenbin; Wang, Zuo-Ping; Peng, Keqin; Guo-ying, Xiao

doi:10.3724/sp.j.1011.2011.00069

Cited by 2 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Madan (2012) observed that the yield advantage of hybrids is being affected by the reduced seed setting rate under high-temperatures (38°C) when compared to normal temperatures (29°C -35°C). Similarly, Zhou (2009) and Hu (2012) also observed the sensitivity of hybrid rice towards high-temperature stress. Rice hybrid seed production is often followed in India during Rabi (Dry) season due to dry weather and absence of precipitation.…”

Section: Introductionmentioning

confidence: 84%

Grain and cooking quality analysis in heat-tolerant QTL introgressed restorer of hybrid rice

Jaldhani¹,

Neeraja²,

D³

et al. 2021

J Rice Res

View full text Add to dashboard Cite

Rice grain yield and quality are affected by the high temperature stress to a large extent. Four promising backcross introgression lines (BC2 F8 ) of KMR-3R/N22 carrying qHTSF1.1, qHTSF4.1 and HT Score QTLs were evaluated for high-temperature induced rice grain and cooking quality during Rabi 2021. Late-sown staggered planting was adopted to ensure uniform high-temperature stress on the improved restorers along with the parents used, which resulted in significant yield loss and grain quality degradation due to hightemperature stress. For cooking quality metrics, ANOVA showed significant variation among genotypes (G), treatments (T), and G×T. Among the backcross introgression lines (BILs), RP6338-9 possesses qHTSF4.1 noted to be promising for grain quality traits under high temperature stress.

show abstract

Section: Introductionmentioning

confidence: 84%

Grain and cooking quality analysis in heat-tolerant QTL introgressed restorer of hybrid rice

Jaldhani¹,

Neeraja²,

D³

et al. 2021

J Rice Res

View full text Add to dashboard Cite

show abstract

“…Especially during the heading stage, rice has the weakest tolerance to low-temperatures. Cold stress at this time can cause oret degradation or pollen sterility, resulting in empty grains (Zhang et al 2017;Siddik et al 2019), reducing grain setting rate and hundred grain weight, and seriously reducing yield (Zhu et al 2012;Sperotto et al 2013). At present, research on rice low-temperature damage mainly focuses on the degree of low-temperature damage, changes in rice physiological functions during low-temperatures, the impact on yield components and quality (Bhattacharjees 2013;Ren et al 2017).…”

Section: Introductionmentioning

confidence: 99%

Effects of low-temperature stress during heading stage on carbon and nitrogen allocation in paddy eco-system of northeastern China

Sun,

Ruan,

Cao

et al. 2024

Preprint

View full text Add to dashboard Cite

Background and aims In high-latitude area, climate change has resulted in frequent chilling stress which affects rice sustainable production as well as changes carbon (C) and nitrogen (N) allocation in paddy ecosystem. However, the response characteristics of C and N allocation in paddy ecosystem to low-temperature stress during key growth stage are not fully understood. Methods A rice pot experiment of two varieties combined with 13C and 15N isotope labelling method was conducted to evaluate how low-temperature stress at heading stage affects rice yield, above- and below-ground C and N partitioning, and soil C and N changes. Results Low-temperature stress significantly reduced rice grain yield of JN809 (sensitive to low-temperature stress) and J88 (resistant to low-temperature stress) varieties 27.6% and 21.4%, respectively, Low-temperature stress was prone to increase C and N accumulation in stems and leaves of rice and soil. The low temperature tolerance variety (J88) reduced the effects of low temperature stress on rice yield and the allocation of C and N between soil and rice Conclusion Low-temperature during rice heading stage significantly hindered transportation of C assimilate and absorbed N from soil. Low temperature tolerant variety reduced the effect of low temperature chilling stress on rice yield, and C and N allocation. Present study provides a basis for rice breeding and cultivation techniques that can enhance rice resilience and adaptability to climate change, as well as optimize C and N sequestration practices in rice fields to ensure high yields and resource use efficiency.

show abstract

Effect of high temperature at heading and flowering stage on seed-setting rate of rice recombinant inbreed line population (RIL47)

Cited by 2 publications

References 0 publications

Grain and cooking quality analysis in heat-tolerant QTL introgressed restorer of hybrid rice

Grain and cooking quality analysis in heat-tolerant QTL introgressed restorer of hybrid rice

Effects of low-temperature stress during heading stage on carbon and nitrogen allocation in paddy eco-system of northeastern China

Contact Info

Product

Resources

About