Evaluation of Trinexapac‐Ethyl and Nitrogen Management to Minimize Lodging in Rice

Corbin, Jennifer L.; Walker, T. W.; Orlowski, John M.; Krutz, L. Jason; Gore, Jeffrey; Cox, Michael S.; Golden, Bobby R.

doi:10.2134/agronj2016.04.0185

Cited by 16 publications

(10 citation statements)

References 16 publications

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“…Most of hybrid varieties were selected for better yield performance and strong lodging resistance by rice breeders in an excessive N fertilizer environment. These hybrid varieties tend to be more adaptive to high N environment than inbred varieties and produce more grains as previous yield trials reported (Corbin et al, 2016; Yang, 2015). Moreover, many high‐yielding records above 15 t ha −1 were achieved through 280–350 kg ha −1 N input using hybrid varieties (Gu et al, 2017; Li et al, 2014).…”

Section: Introductionsupporting

confidence: 52%

High yields of hybrid rice do not require more nitrogen fertilizer than inbred rice: A meta‐analysis

Yuan

Wang

et al. 2021

Food and Energy Security

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Hybrid rice has been planted throughout China to ensure food security owing to its higher yield potential than inbred rice. Meanwhile, substantial nitrogen (N) fertilizer has been applied to feed hybrid varieties for maximizing grain yield. However, to what extent the higher yield of hybrid than inbred rice depends on N fertilizer input remains unclear. A meta‐analysis was conducted in this study to (1) quantify the difference in N uptake and utilization between hybrid and inbred rice; (2) determine whether hybrid rice requires more N than inbred rice for producing per unit grain yield; and (3) evaluate the impact of the difference in crop growth duration between hybrid and inbred rice on their yield performance. The results showed that, overall, hybrid rice achieved a 10.1% higher grain yield, and 9.7% higher daily grain yield than inbred rice. This grain yield advantage increased from 6.1% to 11.9% depending on whether hybrids have longer crop growth duration than inbred rice. The yield advantage of hybrid rice was explained by higher total N uptake and internal N use efficiency, but not explained by N fertilizer input. Moreover, the yield advantage of hybrid rice with N fertilizer was driven by higher yield without N fertilizer instead of yield response to N fertilizer. These results suggest that hybrid rice does not necessarily require more N fertilizer to achieve higher yield than inbred rice. Therefore, hybrid rice could be planted with fewer external N to ensure food security and reduce environmental costs.

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Section: Introductionsupporting

confidence: 52%

High yields of hybrid rice do not require more nitrogen fertilizer than inbred rice: A meta‐analysis

Yuan

Wang

et al. 2021

Food and Energy Security

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“…For instance, suggested that an improvement in the lodging resistance of high-yield rice populations could be achieved by the suitable plant height with the optimum configuration of internodes. Corbin et al (2016) reported that application of growth regulator of trinexapac-ethyl decreased rice plant height and lodging risk.…”

Section: Biochar Effects At Vegetative Growth Phasementioning

confidence: 99%

The Benefits of Biochar on Rice Growth and Yield in Tropical Riparian Wetland, South Sumatra, Indonesia

Lakitan¹,

Alberto²,

Lindiana³

et al. 2018

CMUJNS

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Biochar improves soil quality. However, most biochar research has focused on aerobic soil conditions. The objective of this research was to evaluate the agronomic benefits of applying biochar on unfertilized rice crop, cultivated under transitional anaerobic soil conditions during early vegetative growth phase, and gradually drying out to fully aerobic at harvest time. This transitional condition is typical during the rice growing season of the tropical riparian wetlands in Indonesia. Biochar was applied in the form of fine powder at rates of 0, 0.4, 0.8, and 1.2 Mg.ha -1 ; no inorganic fertilizer was applied. The research was conducted on a farmer's paddy field at Pemulutan Ulu Village, South Sumatra, Indonesia from July to November 2016. Results indicated that applying biochar at rates up to 1.2 Mg.ha -1 increased rice yield, but restrained shoot elongation rate and plant height. During the vegetative growth phase, applying biochar significantly increased the number of tillers, leaves, shoot dry weight, and root dry weight. Biochar significantly affected the following yield components: number of tillers, percentage of productive tiller, number of grains per panicle, panicle density, percentage of filled grain, and weight of 1,000 grains.

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“…Lodging is one of the main limiting factors for high yield and quality of rice (Corbin et al, 2016). In this study, continuous straw returning under the same level of chemical fertilizer input improved the stem bending resistance of rice stalks and reduced the risk of lodging significantly.…”

Section: Effects On Rice Lodging Resistancementioning

confidence: 80%

Effects of continuous straw return and fertilization on rice lodging resistance

Zhao

Xin

Liu

et al. 2022

Chil. j. agric. res.

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As a common problem in rice (Oryza sativa L.) production, lodging will not only increase harvest costs and reduce rice production, but also affect rice taste seriously and reduce its commercial value. There is still a lack of systematic research on the effect of lodging resistance of rice after returning wheat (Triticum aestivum L.) straw to the field. The study evaluated the effects of continuous straw returning and different fertilizer input levels on the lodging resistance of rice stalks based on years of experiments, using a split zone design with two factors including full return of straw to the field and straw removal, and three fertilization levels (conventional fertilization, 50% of conventional fertilization and no fertilization) under each factor, for a total of six treatments. Results suggested that under the same level of chemical fertilizer application, treatments of straw returning significantly increased stalk flexural resistance up to 33.74% as well as decreased the lodging index by a maximum of 33.86% compared with straw removal. Decrease of chemical fertilizer application increased significantly stalk flexural resistance, while decreased significantly lodging index. Rice plant height, center of gravity height, internode length, stem wall thickness and internode dry weight were main factors that influence rice lodging resistance. Compared with straw removal, straw returning combined with chemical fertilizers applying could significantly increase rice yield up to 19.62%. The increase in rice yield increased the risk of rice lodging. The continuous return of straw to the field combined with the application of chemical fertilizers reduced the risk of rice lodging to a certain extent, and meanwhile it achieved successive annual increase in rice production, which has a good promotion prospect.

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Evaluation of Trinexapac‐Ethyl and Nitrogen Management to Minimize Lodging in Rice

Cited by 16 publications

References 16 publications

High yields of hybrid rice do not require more nitrogen fertilizer than inbred rice: A meta‐analysis

High yields of hybrid rice do not require more nitrogen fertilizer than inbred rice: A meta‐analysis

The Benefits of Biochar on Rice Growth and Yield in Tropical Riparian Wetland, South Sumatra, Indonesia

Effects of continuous straw return and fertilization on rice lodging resistance

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