Variations in cadmium accumulation among rice cultivars and types and the selection of cultivars for reducing cadmium in the diet

2004 ◽  
Vol 85 (1) ◽  
pp. 147-153 ◽  
Author(s):  
Jianguo Liu ◽  
Qingsen Zhu ◽  
Zujian Zhang ◽  
Jiakuan Xu ◽  
Jianchang Yang ◽  
...  
Keyword(s):  
Cadmium Accumulation ◽  
Rice Cultivars ◽  
Selection Of

Cadmium accumulation in different rice cultivars and screening for pollution-safe cultivars of rice

2006 ◽  
Vol 370 (2-3) ◽  
pp. 302-309 ◽  
Author(s):  
Hui Yu ◽  
Junli Wang ◽  
Wei Fang ◽  
Jiangang Yuan ◽  
Zhongyi Yang
Keyword(s):  
Cadmium Accumulation ◽  
Rice Cultivars

scholarly journals Selection of Standard Rice Cultivars for Evaluating Tolerance to Rice Kernel Cracking in the Western Region of Japan

2020 ◽  
Vol 89 (2) ◽  
pp. 143-150
Author(s):  
Koji Nakagomi ◽  
Hideki Sasahara ◽  
Akiko Shigemune ◽  
Osamu Ideta ◽  
Asako Kobayashi ◽  
...  
Keyword(s):  
Western Region ◽  
Rice Cultivars ◽  
The Western Region ◽  
Selection Of

scholarly journals Selection of Standard Rice Cultivars for Evaluating Tolerance to Rice Kernel Cracking in the Tohoku and Hokuriku Regions of Japan

2019 ◽  
Vol 88 (3) ◽  
pp. 193-203
Author(s):  
Nakagomi ◽  
Osamu Ideta ◽  
Akiko Shigemune ◽  
Hisatoshi Ohta ◽  
Akira Fukushima ◽  
...  
Keyword(s):  
Rice Cultivars ◽  
Selection Of

scholarly journals Selection of local swamp rice cultivars from Kalimantan (Indonesia) tolerant to iron stress during vegetative stage

2020 ◽  
Vol 21 (12) ◽  
Author(s):  
Vina Novianti ◽  
Didik Indradewa ◽  
Maryani MARYANI ◽  
Diah Rachmawati
Keyword(s):  
Leaf Length ◽  
Iron Toxicity ◽  
Vegetative Stage ◽  
Enzyme Analysis ◽  
Percentage Increase ◽  
Rice Cultivars ◽  
Iron Stress ◽  
Potential Region ◽  
Biochemical Component ◽  
Selection Of

Abstract. Novianti V, Indradewa D, Maryani, Rachmawati D. 2020. Selection of local swamp rice cultivars from Kalimantan (Indonesia) tolerant to iron stress during vegetative stage. Biodiversitas 21: 5595-5606. Kalimantan with the large swamp area is a potential region in Indonesia to develop local rice cultivars with high tolerance to iron toxicity in tidal lowlands. This research was conducted to select iron toxicity-tolerant in local Kalimantan-rice cultivars, namely: Amas (AMS), Pandan Ungu (PDU), Kambang (KMB), Suatek Merah (SM), Siam Unus Mayang (SUM), Siam Unus Kuning (SUK), and Siam 11 Panjang (S11P). As control, two rice cultivars: Ciherang (iron toxicity-susceptible) and Inpara 5 (iron toxicity-tolerant) were also used. The seeds were grown hydroponically for 35 DAP (days after planting) in Yoshida nutrient solution containing 0 ppm (control), 100 ppm (low), and 400 ppm (high) FeS2 as pyrite treatments. Morphological analysis (plant height, leaf length and width, and leaves number) showed that PDU and KMB cultivars have better characters for tolerating iron toxicity. The highest level of chlorophyll and carotenoid contents during iron toxicity treatment was observed in KMB cultivar. AMS cultivar had the highest proline level under high iron stress. Antioxidant enzyme analysis showed that AMS, PDU, and KMB cultivars had a high percentage increase in the activity of superoxide dismutase (SOD), hydrogen peroxide (H2O2), and ascorbate peroxidase (APX) enzymes when exposed to high pyrite conditions. Based on morphophysiological characteristics, biochemical component, and enzymatic antioxidant activity, it can be concluded that AMS, PDU, and KMB cultivars are potential candidates as iron toxicity-tolerant rice.

scholarly journals Evaluation of Phenamacril and Ipconazole for Control of Rice Bakanae Disease Caused by Fusarium fujikuroi

Plant Disease ◽  
2018 ◽  
Vol 102 (7) ◽  
pp. 1234-1239 ◽  
Author(s):  
Meixia Li ◽  
Tao Li ◽  
Yabing Duan ◽  
Ying Yang ◽  
Jian Wu ◽  
...  
Keyword(s):  
Antifungal Activity ◽  
Spore Germination ◽  
Fungicide Resistance ◽  
Mycelial Growth ◽  
Fusarium Fujikuroi ◽  
Rice Cultivars ◽  
Bakanae Disease ◽  
Field Isolates ◽  
High Antifungal Activity ◽  
Selection Of

This study evaluated the use of phenamacril and ipconazole, alone and in mixtures, for the control of rice bakanae disease caused by Fusarium fujikuroi. Mixtures were studied with the goal of reducing the selection of fungicide-resistant field isolates of the fungus. When tested alone, both phenamacril and ipconazole exhibited high antifungal activity against F. fujikuroi mycelial growth; the average EC50 value for 19 field isolates was 0.1544 μg/ml for phenamacril and 0.0472 μg/ml for ipconazole. A 2:1 mixture of phenamacril and ipconazole caused a slightly synergistic (greater than additive) inhibition of mycelial growth. Inhibition of F. fujikuroi sporulation was highest for ipconazole alone, intermediate with the 2:1 mixture, and lowest for phenamacril alone. Inhibition by phenamacril and ipconazole alone or by the 2:1 mixture was substantially lower for spore germination than for mycelial growth or sporulation. When the total fungicide concentration was <24 g of a.i./100 kg of treated rice seeds, the fungicides, whether alone or in the 2:1 mixture, were not phytotoxic to seeds or seedlings of two rice cultivars. In a greenhouse experiment, the 2:1 mixture of phenamacril and ipconazole at 6 g of a.i./100 kg of treated seeds provided 100% control of rice bakanae disease on two cultivars. Overall, the results indicate that the use of a 2:1 mixture of phenamacril and ipconazole should control rice bakanae disease while reducing the occurrence of fungicide resistance in F. fujikuroi.

scholarly journals Selection of drought-tolerant local rice cultivars from East Nusa Tenggara, Indonesia during vegetative stage

2019 ◽  
Vol 21 (1) ◽  
Author(s):  
Yustina Carolina Febrianti Salsinha ◽  
Didik Indradewa ◽  
Yekti Asih Purwestri ◽  
Diah Rachmawati
Keyword(s):  
Intercellular Co2 Concentration ◽  
Stability Index ◽  
High Sensitivity ◽  
Co2 Concentration ◽  
Vegetative Stage ◽  
Severe Drought ◽  
Rice Cultivars ◽  
Drought Tolerant ◽  
Physiological Analysis ◽  
Selection Of

Abstract. Salsinha Y C F, Indradewa D, Purwestri Y A, Rachmawati D. 2020. Selection of drought-tolerant local rice cultivars from East Nusa Tenggara during vegetative stage. Biodiversitas 21: 170-178. East Nusa Tenggara (NTT), with the predominance of dry climate, has the potential of the plant with high tolerance to drought. This research was conducted to select drought-tolerant rice cultivars. There were eight NTT-rice cultivars tested: Pak morin (P1), Mapan (P2), Pak Mutin (P3), Gogo Fatuhao (P4), Seratus-malam Boawae (P5), Padi-Putih Kuatnana (P6), Padi-Putih Maumere (P7) and Gogo Sikka (P8) with 2 control cultivars tested: Ciherang (drought- susceptible) and IR-64 (drought tolerant). The treatment included were 100% FC (control), 50% FC (moderate) and 25% FC (severe drought) during vegetative stage. The morphological analysis of plant (plant height, number of leaves and tillers and root architecture) showed cultivars P1, P5 and P6 possess the best characteristics for tolerating drought. The physiological analysis (plant photosynthetic rate, stomatal conductance, intercellular CO2-concentration, and transpiration rate) showed cultivar P5 and P6 possess the best characteristics for tolerating drought. The high levels of chlorophyll and carotenoid contents during drought conditions were observed in P5, P6, and P7 cultivars. Based on the relative water content, membrane stability index and proline levels, highest-resistance cultivar was P5 and P7 while the cultivar with high sensitivity to drought stress was P3. Based on the morphophysiological characteristics, it can be concluded that P5, P6, and P7 cultivar have the potential as drought-tolerant rice.

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