scholarly journals Rice Direct Seeding Method with Recycled-paper Mulching

1999 ◽  
Vol 2 (1) ◽  
pp. 53-57 ◽  
Author(s):  
Hideto Ueno ◽  
Motoko Shimura ◽  
Minoru Yamauchi
Keyword(s):  
Direct Seeding ◽  
Recycled Paper ◽  
Seeding Method

scholarly journals Studies on High Frequency Shoot Regeneration in Sesame (Sesamum indicum L.)

2012 ◽  
Vol 21 (1) ◽  
pp. 45-52 ◽  
Author(s):  
Bangaramma S. Wadeyar ◽  
R. Lokesha
Keyword(s):  
Key Words ◽  
Shoot Regeneration ◽  
Plant Tissue ◽  
High Frequency ◽  
Sesamum Indicum ◽  
Direct Seeding ◽  
The Other ◽  
Seeding Method ◽  
Regeneration Response ◽  
High Sucrose

High frequency shoot regeneration was attempted in sesame (Sesamum indicum L. Pedaliaceae), using five genotypes/varieties viz. Tumkur and Gulbarga Locals (land races), W-II, E-8 and DS-1 (varieties). The hypocotyl-derived callus obtained through direct seeding method was placed on MS with five different treatments viz. pre-culture of callus on high sucrose (6 - 9%) for two weeks and transferring on to plain MS with 3% sucrose, MS with variable concentrations of TDZ alone, MS with constant TDZ and variable concentrations of BA and IAA, MS with variable concentrations of BA and IAA without TDZ, MS with ABA and AgNO3 and MS with BAP, NAA and AgNO3.  Highest frequency of cent per cent shoot regeneration was initiated in variety DS-1on MS containing NAA 2.5 mg/l, BAP 3.5 mg/l and 20 µM AgNO3 with 2.50 mean shoots/callus followed by 91.6% in variety W-II on MS containing 25 µM TDZ with 2.20 mean shoots/callus. The other treatments had poor shoot regeneration response. The results have been discussed in the light of sesame improvement through biotechnological ways.   Key words: Sesamum indicum, hypocotyl, high frequency,  shoot regeneration   D. O. I. 10.3329/ptcb.v21i1.9562   Plant Tissue Cult. & Biotech. 21(1): 45-52, 2011 (June)

scholarly journals Mapping of QTLs controlling seedling establishment using a direct seeding method in rice

2010 ◽  
Vol 60 (4) ◽  
pp. 353-360 ◽  
Author(s):  
Natsuko Iwata ◽  
Hiroshi Shinada ◽  
Hitoshi Kiuchi ◽  
Takashi Sato ◽  
Kenji Fujino
Keyword(s):  
Seedling Establishment ◽  
Direct Seeding ◽  
Seeding Method

scholarly journals Root knot nematode infections promoted by agricultural practice modifications in Vietnam and the impacts on rice production

2020 ◽  
Vol 42 (3) ◽  
Author(s):  
Nguyen Thi Hue ◽  
Anne -Sophie Masson ◽  
Lionel Moulin ◽  
Trinh Quang Phap ◽  
Ha Viet Cuong ◽  
...  
Keyword(s):  
Crop Rotation ◽  
Rice Variety ◽  
Its Region ◽  
Direct Seeding ◽  
Parasitic Nematodes ◽  
Agricultural Practice ◽  
Root Knot Nematode ◽  
Meloidogyne Graminicola ◽  
Seeding Method ◽  
The Impact

A survey conducted on newly cultivated lowland rice fields by direct seeding method in Hai Duong Province, Viet Nam, in March 2017 revealed high devastation of the field. In these fields, farmers used an annual crop rotation cycle of rice-scallion-rice. Investigations on the devastated fields revealed that the chemical and physical soil properties were appropriate for rice cultivation. On the other hand, observations done on the root systems showed that the dead plants have symptomatic root galls suggesting the presence of plant parasitic nematodes. Sequencing of the internal transcribed spacer (ITS) region of the rDNA genes of the nematodes showed that the root nematodes extracted from the infested fields belonged to Meloidogyne graminicola. The reproductive factor of the isolated M. graminicola population on the IR64 rice variety (Oryza sativa indica) was normal, suggesting that the impact of this plant pest was not due to the emergence of an unusual virulent population. The combination of the three factors (wrong cropping choice for rotation, using rice variety susceptible to M. graminicola and direct seeding) were obviously promoting the nematode infection and its high proliferation in the surveyed fields. Meloidogyne graminicola could parasitize and propagate in scallions of Vietnam. Since this plant is annually cultivated on a paddy field for crop rotation, preventive measures or alternative plant for crop rottion is necessary.   

scholarly journals Yield of Sweet Pepper (Capsicum annuum) Cultivars in Northwestern Puerto Rico

1969 ◽  
Vol 61 (1) ◽  
pp. 90-99
Author(s):  
Angel C. Serrano Pérez
Keyword(s):  
Puerto Rico ◽  
Capsicum Annuum ◽  
Environmental Conditions ◽  
Sweet Pepper ◽  
Direct Seeding ◽  
Yield Potential ◽  
Seeding Method ◽  
North Western

Ten sweet pepper cultivars were tested to determine their yield potential in north western Puerto Rico. Nine plantings were made from September 1970 to July 1972 using both transplant and direct seeding methods. Puerto Rico Wonder (bell type) and Blanco del País (condiment type) outyielded similar cultivars in all cases. They are well adapted to the environmental conditions of northwestern Puerto Rico. The best time for direct seeding appears to be January through April, while June is best for transplanting. Direct seeding is recommended because planting can be mechanized, setbacks avoided, and better yields harvested earlier. These two cultivars were reevaluated against Yolo Wonder Y and Cubanelle, using the direct seeding method. Six plantings were made from August 29, 1972, to June 6, 1973. The results confirmed previous findings.

scholarly journals Evaluation of yield performance and establishment methods of drought tolerant rice genotypes under rainfed condition in drought prone areas of Bangladesh

2020 ◽  
Vol 5 (2) ◽  
pp. 97-104
Author(s):  
M.M. Islam ◽  
M.I. Ali ◽  
M.S. Islam ◽  
A.B.M.S. Alam ◽  
M.H. Rahman ◽  
...  
Keyword(s):  
Grain Yield ◽  
Field Experiments ◽  
Block Design ◽  
Direct Seeding ◽  
Rice Varieties ◽  
Rainfed Condition ◽  
Local Cultivar ◽  
Drought Tolerant ◽  
Seeding Method ◽  
Randomized Complete Block Design

Two field experiments were carried out at farmer’s field of Rajshahi and Chapainawabgonj under the Department of Agronomy, BINA during aman season of 2017 and 2018 consecutively to evaluate the drought tolerant rice varieties under different establishment methods in rain fed condition. First experiment (E1) was conducted to find out the performance of varieties and second experiment (E2) was to find out the suitability of method of transplanting/sowing in combination with short duration aman varieties. Different methods were as direct seeding, puddled and un-puddled transplanting and cultivars were used to cultivate BRRI dhan56, Binadhan-7, Binadhan-17 (except in second experiment) and Huttra (local cultivar). The experiment was laid out in a randomized complete block design with three replications. The recommended fertilizer doses applied for the experiment were 80 kg N ha-1, 15 kg P ha-1, 50 kg K ha-1, 20 kg S ha-1 and 2 kg Zn ha-1. Nitrogen, phosphorus, potassium, sulphur and zinc were supplied from urea, TSP, MoP, gypsum and zinc sulphate monohydrate respectively while urea was applied in three equal splits. Among the cultivar Binadhan-17 produced statistically higher grain yield (5.62 t ha-1) at Chapainawabgonj. Among methods Binadhan-7 statistically higher grain yield 5.32 t ha-1 and 5.21 t ha-1, respectively) in puddle transplanting method both Chapainawabgonj and Rajshahi region during 2017. Among the cultivar Huttra (local) produced statistically higher grain yield (5.43 t ha-1) at Chapainawabgonj. Among methods, BRRI dhan56 statistically higher grain yield 6.37 t ha-1 and 6.19 t ha-1, respectively) in puddle transplanting method bothat Rajshahi and Chapainawabgonj during 2018. Overall results indicates that BRRI dhan56, Binadhan-7, Binadhan-17 performed better in puddled transplanting, Huttra (local) in direct seeding method in drought prone region of Bangladesh.

scholarly journals Effect of plant establishment method and weeding on the yield and yield components of Boro rice

2016 ◽  
Vol 27 (1) ◽  
pp. 27-31
Author(s):  
RC Ghosh ◽  
MSU Bhuiya ◽  
MR Uddin ◽  
UK Sarker ◽  
KR Das
Keyword(s):  
Grain Yield ◽  
Harvest Index ◽  
Block Design ◽  
Direct Seeding ◽  
Plant Establishment ◽  
Straw Yield ◽  
Seeding Method ◽  
Establishment Method ◽  
Biological Yield ◽  
Boro Rice

An experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh, Bangladesh during December 2013 to May 2014 to observe the effect of plant establishment method and weeding on the yield and yieldcomponents of boro rice cv. BRRI dhan29. The treatments included two plant establishment methods  viz. direct seeding and transplantingusing the seedling of direct seeded plots; four weedings viz. no weeding, one weeding at 15 days after transplanting (DAT), two weedings at 15 and 30 DAT, three weedings at 15, 30 and 45 DAT.The experiment was laid out in a randomized complete block design with four replications. Yield contributing characters and yield of boro rice were influenced by plant establishment method and weeding. The highest plant height (79.24 cm), grains panicle-1 (121.90), grain yield (2.86 t ha-1), straw yield (3.56 t ha-1), biological yield (6.42 t ha-1) and harvest index (44.81%) were recorded by transplanting method. The highest number of total tillers hill-1 (17.48 ), effective tillers hill-1 (13.39), grain yield (3.38 t ha-1), straw yield (4.22 t ha-1), biological yield (7.61 t ha-1) and harvest index (47.01%) were obtained with three weeding at 15, 30 and 45 DAT. The lowest grain yield (1.69 t ha-1) and straw yield (2.42 t ha-1) were recorded from no weeding. The highest grain yield (3.65 t ha-1) was recorded from transplanting method with three weeding, which was statistically similar to transplanting method with two weeding. Again direct seeding method with three weeding resulted in similar yield with that of transplanting method with two weeding. The lowest grain yield (1.46 t ha-1) was recorded from direct seeding method with no weeding. From the present experiment it may be concluded that transplanting method with two weeding or direct seeding method with three weeding may be recommended for cultivation of modern bororice.Progressive Agriculture 27 (1): 27-31, 2016

scholarly journals Effect of Seed Priming on Lodging Indices of Rice (Oryza sativa L.) Cultivars in Direct Seeding Method

2017 ◽  
Vol 7 (3) ◽  
pp. 129-143 ◽  
Author(s):  
Hasan Akhgari ◽  
Masoud Esfahani ◽  
Gholam Reza Mohsenabadi ◽  
Ali Alami ◽  
◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Oryza Sativa L ◽  
Seed Priming ◽  
Direct Seeding ◽  
Seeding Method

scholarly journals Review of rice transplanter and direct seeder to be applied in Indonesia paddy field

2021 ◽  
Vol 922 (1) ◽  
pp. 012019
Author(s):  
J Pitoyo ◽  
M Idkham
Keyword(s):  
Paddy Field ◽  
Powder Coating ◽  
Direct Seeding ◽  
Production Costs ◽  
Rice Seed ◽  
Rural Labor ◽  
Seeding Method ◽  
Land And Water Management ◽  
Sowing Seed ◽  
Unfavorable Condition

Abstract The challenge to plant one seed or plant per hill by rice ordinary rice transplanter (RT) is still difficult to be achieved due to random in sowing seed by on rice nursery tray. But due to the vigority of seed after sowing in the field and also the unfavorable condition, the more number of seed are still needed and the yield lower compare transplanter method. Recently, the use of rice direct seeding has been increasing rapidly owing to rural labor shortages and continuous increases in agricultural production costs. This article reviews the research and application progress of mechanized rice direct seeding including direct seeding technologies, precision rice seeding, precision rice seed-metering devices. The other important component on succession direct seeding method is also discussed i.e. calcium gypsum coating and iron powder coating. Operating direct seeding machine also need consider about land and water management. Paddy field need to be managed since the seed drooped in order give favor condition of seed and facility the seed with optimum growing condition. In this approach, pre-germinated seeds are uniformly hill-dropped in the expected positions in puddled soil. The both technology PNRT and RDS have prospect and great potential for promoting the development of precession on rice cultivation in Asia.

Two-stage self-seeding method for preparation of single crystals of poly(phenylene sulfide)

1989 ◽  
Vol 47 ◽  
pp. 368-369
Author(s):  
Sengshiu Chung ◽  
Peggy Cebe
Keyword(s):  
Single Crystals ◽  
High Performance ◽  
Dilute Solution ◽  
Two Stage ◽  
Annealing Behavior ◽  
High Performance Polymers ◽  
Seeding Method ◽  
Phenylene Sulfide

We are studying the crystallization and annealing behavior of high performance polymers, like poly(p-pheny1ene sulfide) PPS, and poly-(etheretherketone), PEEK. Our purpose is to determine whether PPS, which is similar in many ways to PEEK, undergoes reorganization during annealing. In an effort to address the issue of reorganization, we are studying solution grown single crystals of PPS as model materials.Observation of solution grown PPS crystals has been reported. Even from dilute solution, embrionic spherulites and aggregates were formed. We observe that these morphologies result when solutions containing uncrystallized polymer are cooled. To obtain samples of uniform single crystals, we have used two-stage self seeding and solution replacement techniques.

Resource efficiency in deinked pulp production: a review

TAPPI Journal ◽  
2014 ◽  
Vol 13 (11) ◽  
pp. 37-43 ◽  
Author(s):  
LIISA KOTANEN ◽  
MIKA KÖRKKÖ ◽  
ARI ÄMMÄLÄ ◽  
JOUKO NIINIMÄKI
Keyword(s):  
Waste Disposal ◽  
Resource Efficiency ◽  
Raw Material ◽  
Ecological Strategy ◽  
Recycled Paper ◽  
Paper Production ◽  
Recycled Pulp ◽  
Current State ◽  
The Cost ◽  
Pulp Production

The use of recovered paper as a raw material for paper production is by far the most economical and ecological strategy for the disposal of waste paper. However, paper production from recovered paper furnish generates a great amount of residues, and the higher the demand requirements for the end product, the higher the amount of rejected material. The reason for this is that the selectivity of the deinking process is limited; therefore, some valuable components are also lost in reject streams. The rejection of usable components affects the economics of recycled paper production. As the cost of waste disposal continues to increase, this issue is becoming more and more severe. This paper summarizes the current state of the resource efficiency in recycled pulp production and provides information on the volumes of rejected streams and the usable material within them. Various means to use these reject streams are also discussed, including the main findings of a recent thesis by the main author. This review summarizes current internal and external use of reject streams generated in the deinking operations.

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