Grain yield and aroma quality of upland rice (var. pare wangi) under various types and periods of drought stress

Arsa, I G.B. Adwita; Ariffin, Ariffin; Aini, Nurul; Lalel, Herianus J. D.

doi:10.13057/tropdrylands/t010103

Cited by 7 publications

(4 citation statements)

References 17 publications

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“…Severe drought stress during reproductive stage of rice accounted for economic losses of 48 to 94% (Kim et al 2020). Furthermore, it also resulted in poor quality and aroma of rice grains (Arsa et al 2017;Yang et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Cross-ecosystem utilizing primed seeds of upland rice varieties for enriching crop diversity at riparian wetland during dry season

et al. 2020

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Abstract. Ria RP, Lakitan B, Sulaiman F, Kartika K, Suwignyo RA. 2020. Cross-ecosystem utilizing primed seeds of upland rice varieties for enriching crop diversity at riparian wetland during dry season. Biodiversitas 21: 3008-3017. Cultivation of rice during second growing season at riparian wetlands in Indonesia must deal with drought conditions at reproductive stage. Seed priming can speed up seed emergence and produces vigorous seedlings. Objective of this study was to screen upland rice varieties which were positively responded to seed priming and tolerant to drought during late vegetative and/or reproductive stage. Results of this study indicated that osmo-priming showed positive effects on seed emergence, percentage of germinated seed, and time to reach 50% germination. Effects of osmo-priming on seedling growth did not go beyond four weeks after seedlings had been transplanted. Among nine varieties screened, Inpago 10 exhibited better response to seed priming during late vegetative stage as it produced the highest number of tillers and total leaf area. However, at harvest, osmo-priming with 20% PEG lowered filled spikelet and weight of 100 grains but did not affect yield. Drought during late vegetative stage lessened number of tillers but after drought-treated plants recovered during reproductive stage, percentage of filled spikelet and grain size were comparable to those of control plants. Meanwhile, drought imposed during reproductive stage decreased percentage of filled spikelet and grain yield. Despite its better performance under drought conditions, leaf rolling score was higher during heading stage in Inpago 10. This phenomenon indicated that leaf rolling was not forced by drought, rather it was a quick response of Inpago 10 variety to limit water loss due to transpiration.

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Section: Introductionmentioning

confidence: 99%

Cross-ecosystem utilizing primed seeds of upland rice varieties for enriching crop diversity at riparian wetland during dry season

et al. 2020

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“…Furthermore, these lines were drought-tolerant and were proved to successful introgress the major quantitative trait loci qDTY1.1 into a basmati variety [51]. In a study conducted by Arsa et al [84], drought stress increased 2AP compound content and related aroma scores compared to control. In fact, aroma is expected to increase due to increases in 2AP content in areas affected by drought compared to places with normal rainfall [85].…”

Section: Development Of Aromatic Drought-tolerant Rice Varietiesmentioning

confidence: 97%

Breeding for Rice Aroma and Drought Tolerance: A Review

et al. 2022

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Aroma is one of the main characteristics that guide rice purchases worldwide. Aromatic rice varieties are generally less adapted to biotic and abiotic stresses. Among the abiotic constraints, drought stress causes considerable yield losses. This review describes advances in breeding for aroma and drought tolerance in rice and investigates the possibility of combing these traits in one variety. Some of the major quantitative trait loci that have been discovered for drought tolerance were recently introgressed into aromatic varieties. However, more details on the performance of developed lines are still needed. Furthermore, there are not yet any published reports on the release of aromatic drought-tolerant rice varieties.

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“…Out of the 36 species of understorey presented in the reclamation area after 1 year of cleaning activities, 15 were always present at the three observation locations. Meanwhile, one of these species is Chromolaena odorata, which grows on marginal and fertile land (Hamdani et al 2017). The growth of this plant on land produces litter that contains a lot of nutrients due to its suitability as raw material for making compost.…”

Section: Understorey Diversitymentioning

confidence: 99%

Influence of understorey diversity on wildlife at the coal mining reclamation area in South Kalimantan, Indonesia

et al. 2021

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Abstract. Nugroho Y, Supandi, Suyanto, Matatula J, Wirabuana PYAP. 2021. Influence of understorey diversity on wildlife at the coal mining reclamation area in South Kalimantan, Indonesia. Biodiversitas 22: 3736-3743. The existence of understorey at the coal mining reclamation area provides an important contribution to improve the environmental quality, especially the wildlife presence. Therefore, this study aims to determine the influence of understorey diversity on the wildlife at the coal mining reclamation area managed by the PT Borneo Indobara, South Kalimantan. This study used an ecological survey conducted in three reclamation areas classified based on the dominant species supporting the process, namely Paraserianthes falcataria (L-1), Anthocephalus cadamba (L-2), and a mixture of both species (L-3). The data were collected in two observation periods, namely August 2019 and August 2020. The results showed that at the first observation, ten families of understorey were observed from the survey and the highest diversity was recorded in L-2 (H'=1.71), followed by L-1 (H'=1.54), and L-3 (H'=1.27). Meanwhile, the wildlife in the first periods was only 6 species consisting of 3 birds, 2 reptiles, and 1 mammal. The number of species from every site was relatively equal at the first observation. In the second observation, the diversity of understorey considerably increased with approximately 22 families from the inventory. The highest understorey diversity in this observation was recorded in L-1 (H'=3.30), L-2 (H'=3.05), and L-3 (H'=3.04). Also, the higher understorey diversity was followed by the higher wildlife with 29 species, which consists of 26 birds, 2 reptiles, and 1 mammal. The highest appearance of bird species was in the L-1 with approximately 19 species, while the number of birds in L-2 and L-3 was relatively similar with approximately 15 species. Based on these results, the understorey diversity significantly contributes to improving the wildlife diversity at the coal mining reclamation area, primarily from the bird species.

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Grain yield and aroma quality of upland rice (var. pare wangi) under various types and periods of drought stress

Cited by 7 publications

References 17 publications

Cross-ecosystem utilizing primed seeds of upland rice varieties for enriching crop diversity at riparian wetland during dry season

Cross-ecosystem utilizing primed seeds of upland rice varieties for enriching crop diversity at riparian wetland during dry season

Breeding for Rice Aroma and Drought Tolerance: A Review

Influence of understorey diversity on wildlife at the coal mining reclamation area in South Kalimantan, Indonesia

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