scholarly journals Response of upland rice (Oryza sativa L.) cultivars to different shade levels in sandy soil

2020 ◽  
Vol 5 (3) ◽  
pp. 158
Author(s):  
Irwan Suluk Padang ◽  
Tohari Tohari ◽  
Jaka Widada

The study aimed to determine the response of upland rice under different shade levels. The experiment was conducted in Srigading village, Sanden District, Bantul Regency, Yogyakarta from July 2016 to March 2017. The experimental design applied was the split-plot design with three replications. The main plot was the shade level consists of three levels i.e. 0%, 25% and 50%. The sub plot was the upland rice cultivar consists of three levels i.e.  ‘Inpago 8’, ‘Situ Patenggang’, and ‘Batutegi’. The results showed that some variables observed changes due to shade that are make increased the plant height and leaf area. The maximum number of tillers and the number of productive tillers in the 50% shade treatment decreased, as well as the total plant dry weight and the productivity. Other observation such as root/shoot ratio, panicle length, percentage of filled grain per panicle, number of filled grains per panicle and 1000-grains weight upland rice showed no significant difference.

2017 ◽  
Vol 14 (3) ◽  
pp. 1051-1054 ◽  
Author(s):  
Budianti Kadidaa ◽  
Gusti R. Sadimantara ◽  
Suaib Suaib ◽  
La Ode Safuan ◽  
Muhidin Muhidin

ABSTRACT: Demand for rice as a source of food in Indonesia continues to increase in line with the growth of population, while the capacity to produce paddy rice increasingly limited. One of the efforts is to develop upland rice by utilizing the dry land with organic fertilizer application. The research was conducted in North Buton using split plot design. The main plot was the treatment of manure dosage consisting of 4 levels of treatment and the second factor of local upland rice cultivars as a subplot consisting of 22 cultivars. Production characters were observed and assessments are panicle length, grain number, number of grain content, wet grain weight, dried grain weight, grain weight per culm, and grain yield (t ha-1). The results showed that the yield potency of local upland rice cultivar in North Buton ranged from 3.11- 4.97 t ha-1 and the treatment of organic fertilizer can increase the yield components of upland rice.


2019 ◽  
Vol 4 (2) ◽  
pp. 91
Author(s):  
Puji Lestari Tarigan ◽  
Tohari Tohari ◽  
Priyono Suryanto

This research was aimed to know the effects of the furrow system containing organic matter for rainfed, to growth and yield of several varieties on agroforestry system with Kayu Putih. The research was conducted in Petak 83 Resort Pengelolaan Hutan (RPH) Menggoran, Bagian Daerah Hutan (BDH) Playen, Kesatuan Pengelolaan Hutan (KPH) Yogyakarta from March to August of 2018. The experimental design applied the strip plot design. The vertical factor was the furrow system of treatment consisting of 2 levels i.e, without furrow + without organic matter and furrow + organic matters. The horizontal factors were the varieties of upland rice consisting of 3 varieties i.e. Situ Patenggang, Situ Bagendit, and Ciherang. Then the collected data were analyzed by analysis of variance (Anova) applying a level of significance α = 5%. Whenever the significant differences among treatments were found, further analysis was carried out by applying the Tukey's HSD (Honestly Significant Difference) at 5% levels. The result showed that furrow containing organic matter was able to support plant growth in dry land. Situ Patenggang has highest adaptation to growth dan produce in drought stress. The combination of furrow containing organic matter with Situ Patenggang showed the best result in CGR, total root length, total chlorophyll content, number of panicle, number of spikelet per panicle, 1000 grain weight and estimated productivity.


2018 ◽  
Vol 45 (3) ◽  
pp. 249
Author(s):  
Solikin ,

Dioscorea is potentially used as staple food to support food security. The research was aimed to determine the effect of stake length and time of  stem twining  on  the growth of Dioscorea sansibarensis Pax. The experiment was conducted  in  Purwodadi Botanic Garden from December 2014 until May 2015 using split plot randomized block design consisted of two factors, i.e. the stake length and time of stem twining. The stake length was the main plot consisted of 150 cm, 100 cm and 50 cm above soil surface and without stake (control). The time of stem twining as subplots, i.e. stem twined early, twined at the time of 4 leaves stage, and twined at 8 leaves stage. Each combination of the treatments was replicated three times. The results showed that there was significant effect on the stake length  and the time of stem twining treatments on the plant growth and yield. The stake  length of 150 cm treatment produced the highest fresh tuber and total plant dry weight, i.e., 257.24 g and 132.77 g per plant, respectively. On the contrary, the plant without stake produced the lowest fresh tuber and  total dry weight of plant, i.e., 112.10 g and 48.65 g per plant, respectively.<br /><br />Keywords: biomass,leaf area, photosyntesis, tuber weight


2019 ◽  
Vol 137 ◽  
pp. 62-74 ◽  
Author(s):  
Jay Prakash Awasthi ◽  
Tilak Chandra ◽  
Sagarika Mishra ◽  
Shaifaly Parmar ◽  
Birendra Prasad Shaw ◽  
...  

2017 ◽  
Vol 54 (3) ◽  
pp. 253 ◽  
Author(s):  
Vinay Sharma ◽  
Rahul K Verma ◽  
PC Dey ◽  
SK Chetia ◽  
AR Baruah ◽  
...  

2021 ◽  
Vol 6 (1) ◽  
pp. 38
Author(s):  
Riza Afrinda ◽  
Budiastuti Kurniasih

Marginal land along the coast should be utilized to increase the national rice production. In addition, the use of saline resistant varieties, it is necessary to determine the best seedling age for saline soil. This study aimed to evaluate the growth and yield responses of two rice varieties transplanted at different seedling age on saline soil. The experiment was arranged in a factorial Randomized Completely Block Design (RCBD) with three replications, conducted at saline coastal area of Baros, Yogyakarta, starting from January to June 2017. The first factor was rice varieties, consisting of Dendang and IR-64. Meanwhile, the second factor was the seedling age, consisting of 2 and 4 weeks after sowing (WAS) seedlings. The results showed that the growth and yield of two rice varieties (Dendang and IR-64) showed significant difference, and Dendang showed a better performance than IR-64. The higher yield of Dendang compared to IR-64 was supported by higher plant growth (shoot dry weight) and yield components (number of seeds per panicle, seed weight per plot, and productivity). The 2 and 4 WAS seedlings did not give significantly different effects on nearly all growth variables. However, 2 WAS Dendang rice seedlings had higher shoot dry weight. Meanwhile, IR-64 had higher leaf greenness in 4 WAS seedlings compared to that in 2 WAS seedlings.


2021 ◽  
Vol 83 (4) ◽  
pp. 137-150
Author(s):  
Nurul Fairuz Diyana Bahrudin ◽  
Umar Hamzah ◽  
Wan Zuhairi Wan Yaacob

The application of biotechnology in upland rice improvement programs depends on the availability of efficient regeneration protocols.  Although protocols for shoot regeneration of upland rice are available, none has been reported for pigmented cultivars.  This study reports on a protocol for callus induction and regeneration of Tadong, a pigmented upland rice cultivar from Sabah.  For callus induction, immature embryos were cultured on media containing 2,4-Dichlorophenoxyacetic (2,4-D) at various concentrations (0 – 2.5 mg/L) and on different types of media (MS; MSB5; N6B5; N6).  To induce shoot regeneration, callus explants were cultured on MS medium supplemented with combinations of 6-Benzylaminopurine (BAP) at various concentrations (0 – 3.0 mg/L) and 1-Naphthaleneacetic acid (NAA) at 1.0 mg/L.  To induce shoot development, callus explants were pre-treated with Thidiazuron (TDZ) at various concentrations (0-1.0 mg/l) and exposed to different desiccation periods (0 – 72 hours).  2,4-Dichlorophenoxyacetic at 2.5 mg/L and N6B5 medium resulted in the highest percentages of explant forming callus which were 60.3 ± 17.0 % and 58.7 ± 9.8 % respectively.   The regeneration media failed to induce shoot on callus explants, instead, green spots were formed on the surface of the callus.  The green spots were stimulated to develop into shoots when the callus explants were pre-treated with 0.5 mg/L TDZ or exposed to partial desiccation for 24 h, the percentages of explant forming shoot were 35.7 ± 4.8 % and 47.7 ± 6.8 % respectively.   Shoots developed into complete plants on hormone-free MS medium and acclimatized. 


2021 ◽  
Vol 9 (3) ◽  
pp. 161-173
Author(s):  
Bhagawan Bharali ◽  

Background: Manganese (Mn) being one of the micronutrients available in acid soils acts crucial role in crop plants. In Assam soil, its concentration is 3-52 ppm whereas in plants the critical limit is 2-3ppm. Although the effects Mn on plants have been well documented, information on its impacts on yield and yield components in upland rice crop grown in Assam was scanty, and deserved its investigation. Method: A pot experiment was carried out to study the effects of Mn (0, 10,20,30 ppm Mn as MnSO4H2O) foliar spray (each 1000cm3) at vegetative stage i.e.70days after sowing, on yield and yield components of ten rice genotypes (Kanaklata, Mulagabharu, Kapilee, Disang, Kolong, Joymoti, Jyoti Prasad, Luit, Lachit and Chilarai) cultivated in Assam. Conclusion: The lower dose of Mn (10ppm) significantly increased panicle length (16.29-37.46%), panicle weight (10.54-19.50%), panicle number per plant (4.54-13.63%), number of seeds per panicle (18.38-36.48%), test weight (7.21-29.15%), high density grains (5.59-30.45%), economic yield (14.40-28.03%), biological yield (32.58-47.70%), and harvest index (3.2-7.90%). 30ppm Mn affected adversely all the physiological attributes in the study. Among the ten genotypes, Kanaklata performed the best followed by Chilarai in the experiment.


2005 ◽  
Vol 40 (12) ◽  
pp. 1211-1215 ◽  
Author(s):  
Nand Kumar Fageria ◽  
Virupax Chanabasappa Baligar

The objective of this work was to evaluate Zn use efficiency by upland rice genotypes. The experiment was carried out in a greenhouse, with ten upland rice genotypes grown on an Oxisol (Typic Hapludox) with no application, and with application of 10 mg kg-1 Zn, applied as zinc sulfate. Shoot dry weight, grain yield, Zn harvest index, Zn concentration in shoot and in grain were significantly influenced by soil Zn levels and genotypes. However, panicle number and grain harvest index were significantly affected only by genotype. Genotypes CNA8557, CNA8540 and IR42 produced higher grain yield than other genotypes. Genotypes showed significant variability in Zn recovery efficiency. On average, 13% of the applied Zn was recovered by upland rice genotypes. Genotypes with high Zn recovery efficiency could be used in breeding of Zn efficient upland rice cultivars. Higher level of soil Zn (10 mg kg-1) increased significantly the concentrations of plant Cu and Mn. However, Fe concentrations in plant (shoot and grain) were not influenced by soil Zn levels.


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