scholarly journals Effects of Selenium Fertilizer Application on Yield and Selenium Accumulation Characteristics of Different Japonica Rice Varieties

2021 ◽  
Vol 13 (18) ◽  
pp. 10284
Author(s):  
Juan Yan ◽  
Xiaoju Chen ◽  
Tonggui Zhu ◽  
Zhongping Zhang ◽  
Jianbo Fan
Keyword(s):  
Rice Yield ◽  
Fertilizer Application ◽  
High Yield ◽  
Utilization Rate ◽  
Japonica Rice ◽  
Rice Varieties ◽  
Polished Rice ◽  
Selenium Accumulation ◽  
Different Levels ◽  
Total Selenium

In this study, three japonica rice varieties—Nanjing 9108, Jiahua 1 and Wuyunjing 29—were supplied with different levels of nano-foliar selenium fertilizers (0, 40 and 80 kg Se ha−1) under field conditions. Their rice yield and absorption, accumulation, transportation and utilization of selenium were studied to find suitable selenium-rich rice cultivars and optimal selenium supply levels, while providing references for the development of selenium-rich rice. On an average basis, the Nanjing 9108, Jiahua 1 and Wuyunjing 29 yielded 8755 ± 190, 8200 ± 317 and 9098 ± 72.7 kg ha−1, respectively. The selenium content in polished rice of the three rice varieties is between 0.210 and 0.933 mg kg−1. When 40 g Se ha−1 nano-selenium fertilizer was used, the selenium accumulation in the shoots of Nanjing 9108, Jiahua 1 and Wuyunjing 29 was, respectively, 11.4 g Se ha−1, 12.3 g Se ha−1 and 12.2 g Se ha−1, and when 80 g Se ha−1 selenium fertilizer was applied, the total selenium accumulation of three rice varieties was, respectively, 2.45, 1.75 and 2.40 times that of 40 g Se ha−1 selenium fertilizer. No evident diversity was observed in the selenium transport coefficient and the apparent utilization rate of selenium among the three varieties. The three rice varieties in this experiment had a strong selenium enrichment capacity, and they could be planted as selenium-enriched and high-yield rice varieties. Further, the amount of selenium fertilizer should not exceed 40 g Se ha−1.

Pengaruh Baja Nitrogen (N) dan Kalium (K) Terhadap Padi Varieti MR 269 dan MR 284 di Sungai Nibong (PBLS)

2014 ◽  
Vol 70 (6) ◽  
Author(s):  
Ahmad Arif Ismail ◽  
Ismail Che Haron ◽  
Wan Zaki Wan Mamat ◽  
Muhammad Naim Fadzli Abd. Rani
Keyword(s):  
Significant Interaction ◽  
Rice Yield ◽  
Block Design ◽  
Fertilizer Application ◽  
Positive Influence ◽  
Rice Varieties ◽  
Fertilizer Recommendation ◽  
Cropping Season ◽  
Randomized Complete Block Design ◽  
K Fertilizer

An experiment to study influence of nitrogen (N) and potassium (K) on new rice varieties MR 269 and MR 284 has been carried out in Parit 12 Sungai Nibong, Sekinchan, 45400, Sabak Bernam, Selangor from February 2012 to January 2013. Compatibility tests need to be carried out on current fertilizer recommendation towards these new rice varieties. There are three rates used in this experiment which are 0, 100 and 200 kg/ha for both N and K fertilizer. The experimental design used in this experiment is Randomized Complete Block Design (RCBD) with 3 replications. A set of 54 small plots were erected with 4 m x 4 m in size. Manual Teknologi Penanaman Padi Lestari is used as crop management guideline for this experiment. Results indicated no significant interaction between N and K on yield of the newly tested rice varieties. The rice yield was significantly affected by N but not by K. Results suggest that there is significant interaction between cropping season and N towards rice yield. Analysis showed that fertilizer application of N up to 200 kg/ha contributed to higher yield in first season (Off-season). However, yield increment in season 2 (main season) only took place up until N fertilizer application at 100 kg/ha and began to drop when subsequent additional of 200 kg/ha. This study indicated that number of panicle and number of seed per panicle had positive influence to the rice yield.

scholarly journals Development of the PARMS marker of the TAC1 gene and its utilization in rice plant architecture breeding

Euphytica ◽  
2021 ◽  
Vol 217 (3) ◽  
Author(s):  
Ju Gao ◽  
Haifu Liang ◽  
Juan Huang ◽  
Dongjin Qing ◽  
Hao Wu ◽  
...  
Keyword(s):  
Rice Plant ◽  
Plant Architecture ◽  
Molecular Design ◽  
High Yield ◽  
Amplification Refractory Mutation System ◽  
Japonica Rice ◽  
Rice Varieties ◽  
Key Factor ◽  
Tiller Angle ◽  
The Ideal

AbstractThe ideal plant architecture is a new strategy for super high yield breeding of rice. Tiller angle is an important plant architecture character of rice. A reasonable tiller angle is a key factor for the ideal plant architecture and achieving high-yield breeding. Molecular design breeding is the most potential new direction of crop breeding in the future. The development of accurate and efficient functional molecular markers of target trait genes is crucial for molecular design breeding. The TAC1 (Tiller Angle Controlling) gene is the primary gene that regulates tiller angle in rice. This gene can be used to improve the compact plant architecture of indica and japonica rice varieties. The SNP variation from A to G at the fourth intron 3′ splicing point in TAC1 changes plant architecture. Based on the SNP variation, PM-TAC1 was successfully developed as a fluorescent functional molecular marker, via the penta-primer amplification refractory mutation system. Ninety-three rice materials were genotyped using this marker, and the marker was effectively used in rice plant architecture breeding. The successful development of this marker will contribute to the molecular breeding of rice plant architecture.

Study of Effects of Different Fertigation Modes on Soil Profile Nitrogen Distribution and Rice Yield

2014 ◽  
Vol 955-959 ◽  
pp. 2469-2475
Author(s):  
Guan Xi Zhu ◽  
Xiao Hou Shao ◽  
Yuan Yuan Li ◽  
Jie Liu ◽  
Qi Jin Wu
Keyword(s):  
Total Nitrogen ◽  
Soil Profile ◽  
Field Experiments ◽  
Rice Yield ◽  
Soil Depth ◽  
Soil Layer ◽  
Fertilizer Application ◽  
Utilization Rate ◽  
Effect Analysis ◽  
Conventional Irrigation

Field experiments were conducted for controlled and mid-gathering irrigation mode in Nanjing, Jiangsu Province, focusing on the effect analysis of this mode with different fertilizations on profile soil total nitrogen and alkali-hydrolyzale nitrogen distributions and rice yield compared with the conventional irrigation mode. Results obtained showed that both total nitrogen and alkali-hydrolyzale nitrogen in soil profile were decreased with the increase of soil depth. Fast decrement of total nitrogen was found from surface 0-20 cm of soil layer and it reached the plateau below 40 cm of soil layer. Under the same fertilizer application, both total nitrogen and alkali-hydrolyzale nitrogen in surface soil layer were lower under controlled and mid-gathering irrigation mode which reduced the loss risks of runoff and leaching of soil and fertilizer nitrogen. Controlled and mid-gathering irrigation reduced water comsumption and N pollutant discharge without significant changes in rice yield compared with conventional irrigation. Conjunction of organic and inorganic fertilizers significantly improved the rice yield and utilization rate of nitrogen.

scholarly journals Application of CRISPR/Cas9 Technology in the Genetic Improvement of Rice Yield and Quality Characters

2020 ◽  
Vol 11 (2) ◽  
pp. 62
Author(s):  
Bo Peng ◽  
Xiaorui Ma ◽  
Tao Yang ◽  
Mengyang Zheng ◽  
Juan Peng ◽  
...  
Keyword(s):  
Genetic Improvement ◽  
Rice Yield ◽  
Oryza Sativa L ◽  
High Yield ◽  
Rice Varieties ◽  
Continuous Increase ◽  
Rice Quality ◽  
Genome Region ◽  
New Genes ◽  
Yield And Quality

Rice (Oryza sativa L.) is one of the most important food crops in the world. With the continuous increase of global population and the continuous improvement of people's living standards, it has become the focus of attention of rice breeders and botanists to improve the yield and quality of rice. In the new genome editing technology, the CRISPR/Cas system can accurately and specifically edit the target genome region. In recent years, CRISPR/Cas9 technology has made important progress in studying the function of new genes, increasing rice yield and improving rice quality. Therefore, this paper mainly reviewed the application of CRISPR/Cas9 technology in the genetic improvement of rice yield and rice quality in recent years, and looked forward to the application prospect of CRISPR/Cas9 technology in rice genetic breeding, which will provide important reference for the cultivation of new high-quality and high-yield rice varieties.

scholarly journals Classification of Rice Yield Using UAV-Based Hyperspectral Imagery and Lodging Feature

2021 ◽  
Vol 2021 ◽  
pp. 1-14
Author(s):  
Jian Wang ◽  
Bizhi Wu ◽  
Markus V. Kohnen ◽  
Daqi Lin ◽  
Changcai Yang ◽  
...  
Keyword(s):  
Large Scale ◽  
Rice Yield ◽  
Nondestructive Method ◽  
Hyperspectral Data ◽  
Classification Model ◽  
High Yield ◽  
Multiple Time ◽  
Japonica Rice ◽  
Rice Breeding

High-yield rice cultivation is an effective way to address the increasing food demand worldwide. Correct classification of high-yield rice is a key step of breeding. However, manual measurements within breeding programs are time consuming and have high cost and low throughput, which limit the application in large-scale field phenotyping. In this study, we developed an accurate large-scale approach and presented the potential usage of hyperspectral data for rice yield measurement using the XGBoost algorithm to speed up the rice breeding process for many breeders. In total, 13 japonica rice lines in regional trials in northern China were divided into different categories according to the manual measurement of yield. Using an Unmanned Aerial Vehicle (UAV) platform equipped with a hyperspectral camera to capture images over multiple time series, a rice yield classification model based on the XGBoost algorithm was proposed. Four comparison experiments were carried out through the intraline test and the interline test considering lodging characteristics at the midmature stage or not. The result revealed that the degree of lodging in the midmature stage was an important feature affecting the classification accuracy of rice. Thus, we developed a low-cost, high-throughput phenotyping and nondestructive method by combining UAV-based hyperspectral measurements and machine learning for estimation of rice yield to improve rice breeding efficiency.

scholarly journals Using Heading date 1 preponderant alleles from indica cultivars to breed high‐yield, high‐quality japonica rice varieties for cultivation in south China

2019 ◽  
Vol 18 (1) ◽  
pp. 119-128 ◽  
Author(s):  
Yujia Leng ◽  
Yihong Gao ◽  
Long Chen ◽  
Yaolong Yang ◽  
Lichao Huang ◽  
...  
Keyword(s):  
South China ◽  
Heading Date ◽  
High Yield ◽  
Japonica Rice ◽  
High Quality ◽  
Rice Varieties

Pengaruh Pengelolaan Hara NPK Terhadap Ketersediaan N Dan Hasil Tanaman Padi Sawah (Oryza Sativa L.) Di Desa Waelo Kecamatan Waeapo Kabupaten Buru

Agrologia ◽  
2018 ◽  
Vol 1 (1) ◽  
Author(s):  
Rudy Soplanit ◽  
Siti H Nukuhaly
Keyword(s):  
Grain Yield ◽  
Rice Yield ◽  
Oryza Sativa L ◽  
Block Design ◽  
Fertilizer Application ◽  
N Fertilizer ◽  
Soil Reaction ◽  
Rice Varieties ◽  
N Content ◽  
Leaf N Content

This study was conducted in Waelo Village, Waeapo Subdistrict, Buru District, with the objectives to determine N fertilizer application timing to increase rice yield and to understand the response of two rice varieties commonly grown in Waeapo. The experimental method used in this study was a Randomized Complete Block Design, with several fertilization treatments (NPK, NK,NP, PK and control), and rice varieties (Membramo and Mekongga), and with three replications. The results showed that administration of N fertilizer (NP, NK, NPK) gave significant effects on plant height, leaf color, full grain number per panicle, 1000 grain weight, dry grain yield, soil N content and leaf N content;  meanwhile it did not affect soil reaction (pH). A low rice yield was obtained in the treatment without N fertilizer, with 2.50 kg dry grain yield per plot and PK treatment with 2.78 kg  dry grain yield per plot.

scholarly journals Extreme High Yield of Tropical Rice Grown Without Fertilizer on Acid Sulfate Soil in South Kalimantan, Indonesia

2018 ◽  
Vol 15 (1) ◽  
pp. 33
Author(s):  
Erry Purnomo ◽  
Yasuyuki Hashidoko ◽  
Toshihiro Hasegawa ◽  
Mitsuru Osaki
Keyword(s):  
Soil Properties ◽  
Rice Yield ◽  
Soil Condition ◽  
High Yield ◽  
Soil Electrical Conductivity ◽  
Panicle Length ◽  
Acid Sulfate Soil ◽  
Rice Varieties ◽  
Acid Sulfate ◽  
Rice Yields

Extreme High Yield of Tropical Rice Grown Without Fertilizer on Acid Sulfate Soil in South Kalimantan, Indonesia (E Purnomo, Y Hashidoko, T Hasegawa and M Osaki): Local rice arieties are commonly grown by the farmers located in acid sulfate soil area of South Kalimantan. In South Kalimantan, more than 100 local rice varieties can be found. In 1999, a farmer found one hill (with 5 tillers) rice plant near a canal, later called Padi Panjang. The rice had panicle length of 50 cm. The panicle length of common local rice varieties are 25 cm. Since the finding, the farmer multiplied the seed for 3 years to get a reasonable amount of seeds for nearby farmers to use. In 2004, there were 25 farmers grow the Padi Panjang by themselves. Their paddocks are widely spread out in Aluh-Aluh and Gambut districts. We take this opportunity to investigate yield variation of the Padi Panjang that may be affected by soil properties variability. Ten paddocks out of the 25 paddock were selected. At harvest time (in July-August), we measured the rice yield and collected soil sample from the 10 paddocks. We found that the soil condition in the selected paddocks were marginally suitable for growing improved rice. Without fertilizer, however, the rice yield varied from 3.21 to 8.09 Mg ha-1. We also observed that the rice yield variations associated with tillers number. We did not find any correlation between rice yields with some selected soil properties, except it was observed that the tillers number was negatively correlated with soil electrical conductivity (EC). The extreme yield of Padi Panjang might be explained the involvement of N fixing bacteria and P solubilizing bacteria, large rooting system and the ability of Padi Panjang root in modifying the rhizosphere soil.

scholarly journals Genotypic Variation in Nutrient Uptake Requirements of Rice Using the QUEFTS Model

Agronomy ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 26
Author(s):  
Tao Sun ◽  
Xin Yang ◽  
Sheng Tang ◽  
Kefeng Han ◽  
Ping He ◽  
...  
Keyword(s):  
Nutrient Uptake ◽  
Field Experiments ◽  
Hybrid Rice ◽  
Genotypic Variation ◽  
Tropical Soils ◽  
Study Data ◽  
Japonica Rice ◽  
Rice Varieties ◽  
Indica Hybrid Rice ◽  
Validation Experiments

Nutrient requirements for single-season rice using the quantitative evaluation of the fertility of tropical soils (QUEFTS) model in China have been estimated in a previous study, which involved all the rice varieties; however, it is unclear whether a similar result can be obtained for different rice varieties. In this study, data were collected from field experiments conducted from 2016 to 2019 in Zhejiang Province, China. The dataset was separated into two parts: japonica/indica hybrid rice and japonica rice. To produce 1000 kg of grain, 13.5 kg N, 3.6 kg P, and 20.4 kg K were required in the above-ground plant dry matter for japonica/indica hybrid rice, and the corresponding internal efficiencies (IEs) were 74.0 kg grain per kg N, 279.1 kg grain per kg P, and 49.1 kg grain per kg K. For japonica rice, 17.6 kg N, 4.1 kg P, and 23.0 kg K were required to produce 1000 kg of grain, and the corresponding IEs were 56.8 kg grain per kg N, 244.6 kg grain per kg P, and 43.5 kg grain per kg K. Field validation experiments indicated that the QUEFTS model could be used to estimate nutrient uptake of different rice varieties. We suggest that variety should be taken into consideration when estimating nutrient uptake for rice using the QUEFTS model, which would improve this model.

Sign in / Sign up

Export Citation Format

Share Document