Evaluation of the effectiveness of zinc oxide nano particles on growth and yield of rice (Oryza sativa L.)

2019 ◽  
Vol 20 (3) ◽  
Keyword(s):  
Zinc Oxide ◽  
Oryza Sativa ◽  
Oryza Sativa L ◽  
Nano Particles ◽  
Growth And Yield

scholarly journals Isolation and Characterization of Root-Associated Bacterial Endophytes and Their Biocontrol Potential against Major Fungal Phytopathogens of Rice (Oryza sativa L.)

Pathogens ◽  
2020 ◽  
Vol 9 (3) ◽  
pp. 172
Author(s):  
Maqsood Ahmed Khaskheli ◽  
Lijuan Wu ◽  
Guoqing Chen ◽  
Long Chen ◽  
Sajid Hussain ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Fungal Pathogens ◽  
Oryza Sativa L ◽  
Defense Responses ◽  
Growth And Yield ◽  
Bacterial Endophytes ◽  
16S Rrna Sequence ◽  
Resistance Response ◽  
Isolation And Characterization ◽  
Fungal Phytopathogens

Rice (Oryza sativa L.) is a major cereal food crop worldwide, and its growth and yield are affected by several fungal phytopathogens, including Magnaporthe oryzae, Fusarium graminearum, F. moniliforme, and Rhizoctonia solani. In the present study, we have isolated and characterized root-associated bacterial endophytes that have antifungal activities against rice fungal phytopathogens. A total of 122 root-associated bacterial endophytes, belonging to six genera (Bacillus, Fictibacillus, Lysinibacillus, Paenibacillus, Cupriavidus, and Microbacterium) and 22 species were isolated from three rice cultivars. Furthermore, the 16S rRNA sequence-based phylogeny results revealed that Bacillus was the most dominant bacterial genera, and that there were 15 different species among the isolates. Moreover, 71 root-associated endophytes showed antagonistic effects against four major fungal phytopathogens, including M. oryzae, F. graminearum, F. moniliforme, and R. solani. Additionally, the biochemical, physiological, and PCR amplification results of the antibiotic-related genes further supported the endophytes as potential biocontrolling agents against the rice fungal pathogens. Consequently, the findings in this study suggested that the isolated bacterial endophytes might have beneficial roles in rice defense responses, including several bioactive compound syntheses. The outcomes of this study advocate the use of natural endophytes as an alternative strategy towards the rice resistance response.

scholarly journals Uji efektivitas kombinasi pupuk bio-slurry dengan pupuk npk terhadap pertumbuhan dan produksi dua varietas padi sawah (oryza sativa L.)

2018 ◽  
Vol 2 (2) ◽  
pp. 188
Author(s):  
Ahmad Khanafi ◽  
Yafizham Yafizham ◽  
Didik Wisnu Widjajanto
Keyword(s):  
Oryza Sativa ◽  
Oryza Sativa L ◽  
Growth And Yield ◽  
Production Data ◽  
Single Treatment ◽  
Randomized Design ◽  
Npk Fertilizer ◽  
Completely Randomized Design ◽  
Fertilizer Combination ◽  
Range Test

The objective of this research was to investigate the effectiveness of combination of bio-slurry fertilizer and NPK fertilizer on the growth and production of two varieties of rice. The experiment was assigned in a completely randomized design of factorial pattern. The first factor was the combination of bio-slurry and NPK fertilizer that consisted of P0 = no added fertilizer (control) 0 ton/ha, P1 = NPK fertilizer 550 kg/ha (165 kg N, 33 kg P, 45 kg K); P2 = bio-slurryfertilizer 2.3 tons/ha (45 kg N, 14 kg P, 23 kg K) and NPK fertilizer 400 kg/ha (120 kg N, 24 kg P, 32 kg K); P3 = bio-slurryfertilizer 4.6 tons/ha (90 kg N, 28 kg P, 46 kg K) and NPK fertilizer 250 kg/ha (75 kg N, 15 kg P, 20 kg K); P4 = bio-slurry fertilizer 5.9 tons/ha (115 kg N, 36 kg P, 59 kg K) and NPK fertilizer 100 kg/ha (30 kg N, 6 kg P, 8 kg K); and P5 = bio-slurryfertilizer 8.5 tons/ha (165 kg N, 52 kg P, 85 kg K). The second factor was varieties of rice that consisted of V1 : IR-64 and V2 : Ciherang. Each treatment was repeated three times. Parameters observed were plant height, number of tillers, weight of 1.000 grains, and rice production. Data were analyzed using ANOVA and continued with Duncan’s Multiple Range Test (DMRT). The results showed that the combination of bio-slurry fertilizer and NPK fertilizer were significantlyaffect (p <0.05)all observation parameters, while varieties of wetland rice did not show significant effect on all observation parameters (p<0.05). The application of bio-slurry fertilizer in single treatment or in either combination with NPK fertilizer had the same result with the treatment of NPK fertilizer on the growth and yield of rice. Keywords: rice, fertilizer combination, bio-slurry fertilizer, NPK fertilizer

scholarly journals Effect of seedling age, seeding density and nitrogen fertilizer on growth and grain yield of rice (Oryza sativa L.)

2019 ◽  
Vol 3 (1) ◽  
pp. 81
Author(s):  
Saroj Thapa ◽  
Khagendra Thapa ◽  
Jiban Shrestha ◽  
Amit Chaudhary
Keyword(s):  
Oryza Sativa ◽  
Grain Yield ◽  
Management Practices ◽  
Oryza Sativa L ◽  
Critical Factor ◽  
Growth And Yield ◽  
Seeding Density ◽  
Potential Yield ◽  
Seedling Age ◽  
Nitrogen Rates

Rice (Oryza sativa L.) is first staple crop of Nepal. The national average yield of rice is less than its potential yield, for which poor agronomic management has been reported as the critical factor. Among various agro-management practices seedling age, seeding density and nitrogen rates significantly affect the growth and yield of rice. The lower seeding density produces the taller plant, more effective tiller, lower sterility and higher grain yield. On the other hand, seedling of older age from higher seeding density gives the lowest yield. Transplanting younger seedling with low seeding density and application of recommended dose of nitrogen gives a higher yield. This article summarizes various effects of seedling age, seeding density and nitrogen rates on plant height, number of effective tillers, number of filled grains, thousand grain weight and grain yield of rice. This information may be useful for maize growers and researchers.

scholarly journals PEMBERIAN POC GAMAL TERHADAP PERTUMBUHAN DAN PRODUKSI PADI SAWAH (Oryza sativa L.) DENGAN METODE SALIBU

EUGENIA ◽  
2018 ◽  
Vol 24 (1) ◽  
Author(s):  
Mifta Mamentu ◽  
Jeanne M. Paulus ◽  
Edy Lengkong
Keyword(s):  
Oryza Sativa ◽  
Grain Yield ◽  
Plant Height ◽  
Rice Field ◽  
Oryza Sativa L ◽  
Organic Fertilizer ◽  
Field Research ◽  
Lowland Rice ◽  
Growth And Yield ◽  
Treatment Factor

ABSTRACT The purpose of the research was to studied the application of gliricidia MOL on the growth and yield of lowland rice in the salibu method, and to get the best concentration of gliricidia liquid organic fertilizer  (POC) on the growth and production of lowland rice. Field research has been conducted in Tababo Village, Subdistrict of Belang, district of Southeast Minahasa. The treatment in the experiment consists of one treatment factor, that were concentrations of gliricidia POC, ie  : 0, 50 , 100, 150, and 200 ml/litre. The results showed that gliricidia POC  have an effect on plant height, the number of  grain/panicle, and the dry grain yield (GKP) / plot, but not affect the number of productive tillers and weight of 1,000 grain. The best results were achieved in gliricidia POC concentration 200 ml/litre  with the highest values were: plant height was 98.93 cm; 116.420 grain/panicle; and 8.300 kg dry grain yield or equivalent to 6.92 ton/ha.Keywords : gliricidia POC, production, lowland rice,  salibu method

Sign in / Sign up

Export Citation Format

Share Document