scholarly journals IMPACT OF FOLIAR FERTILIZATION ON PRODUCTIVITY OF NEW INTRODUCED CULTIVARS OF PADDY RICE

AGROFOR ◽  
2018 ◽  
Vol 2 (2) ◽  
Author(s):  
Ivanka TOROMANOVA ◽  
Tonya GEORGIEVA
Keyword(s):  
Oryza Sativa ◽  
Oryza Sativa L ◽  
Climatic Conditions ◽  
Paddy Rice ◽  
High Yield ◽  
Rice Cultivars ◽  
Average Yield ◽  
Foliar Fertilization ◽  
Split Plot

The interest to the introduced rice cultivars (Oryza sativa L.) is explained by thesearch for more suitable varieties with good adaptability and high yield to begrown under the agro-climatic conditions in Bulgaria. The new foliar treatmentproducts on the market - Folur, Amalgerol and Lithovit, have also provoked ourinterest. The survey was carried out in 2013 - 2015, applying the two-factor fieldexperiment following the split plot method. Two Turkish - Osmanchik 97 andGala, along with four Italian cultivars – Lince, Cameo, Puma and Brio were set asfactor one. The foliar product Folur (2 l/da), Amalgerol (1.2 l/da) and Lithovit(0.300 kg/da) were set as factor two. The following factors were studied:phenological development of the cultivars, productive tillering capacity and yield.It has been specified that Osmanchik 97 and Gala had a shorter vegetative period.Lince stood out against the 6 tested cultivars by highest tillering results – 4.70number of tillers/plant and was sharply outlined from the standard – Osmanchik97, Puma and Brio. The tested products Folur and Lithovit had proven their effecton the formation of more productive tillering capacity – by 7.7% and 13.1%respectively. The highest yield was observed with Cameo (954.5 kg/da) and Brio(949.1 kg/da), which surpassed the Osmanchik 97 (control) by 8.6% and 8%respectively. The Amalgerol treatment proved to have the strongest positive impacton productivity and increased the average yield of the tested cultivars by 11.3%.

scholarly journals Uji Daya Hasil Galur Generasi F3 Padi Beras Merah (Oryza sativa L.)

2018 ◽  
Vol 4 (1) ◽  
Author(s):  
Muliarta Aryana ◽  
Yurnawati Yurnawati ◽  
Sutresna Wayan Sutresna
Keyword(s):  
Oryza Sativa ◽  
Sea Level ◽  
Oryza Sativa L ◽  
Block Design ◽  
Yield Potential ◽  
High Yield ◽  
Red Rice ◽  
Average Yield ◽  
Randomized Block Design ◽  
High Yield Potential

The aim of this research was to know the potential of several lines of F3 generation of new red rice from the crossbreeding of Fatmawati and IPB3S varieties with red rice. The research was conducted in Nyurlembang Village, Narmada District, West Lombok Regency, West Nusa Tenggara Province, with elevation of ± 127 m above sea level from July to October 2017. The experiment design was Randomized Block Design (RAK) with 25 treatments i.e. 20 red rice lines, three parents and two comparator varieties. The result shows that all observed characters were significant differences. There are 13 lines of 20 red rice lines have high yield potential above the average yield of the parent and comparator varieties are G17, G9, G18, G13, G12, G15, G8, G14, G7, G11, G6, G19 and G20:11.30 ton.ha-1,  9.44 ton.ha-1, 9.21 ton.ha-1, 9.17 ton.ha-1, 8.94  17 ton.ha-1, 8.92 ton.ha-1, 8.89 ton.ha-1, 8.88 ton.ha-1, 8.81 ton.ha-1, 8.67 ton.ha-1, 8.38 ton.ha-1, 8.12 ton.ha-1and 8.10 ton.ha-1 respectively

The effect of harvest date on yield loss of long and short-grain rice cultivars (Oryza sativa L.) in Northeast China

2021 ◽  
Vol 131 ◽  
pp. 126382
Author(s):  
Jinwu Wang ◽  
Xiaobo Sun ◽  
Yanan Xu ◽  
Qi Wang ◽  
Han Tang ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Northeast China ◽  
Yield Loss ◽  
Oryza Sativa L ◽  
Harvest Date ◽  
Rice Cultivars

Effect of varieties and weeding regimes on weed and performance of

2011 ◽  
Vol 1 (3) ◽  
pp. 121-130
Author(s):  
U. Ismaila ◽  
M. G. Kolo ◽  
A. U. Gbanguba
Keyword(s):  
Oryza Sativa ◽  
Active Ingredient ◽  
Oryza Sativa L ◽  
Weed Suppression ◽  
Dichlorophenoxyacetic Acid ◽  
Aerobic Rice ◽  
Split Plot ◽  
Main Plot ◽  
And Performance ◽  
Plot Design

A Field trial was conducted at the aerobic rice experimental field of the NationalCereals Research Institute (NCRI), Badeggi, Nigeria (9 ° 04 N and 6° 7 E)in 2007 and 2008 wet seasons to determine the weed competitiveness andperformance of inter Ã¢â‚¬Â and intra‐specific aerobic rice (Oryza sativa L.) varietiesunder seven weeding regimes. The trial was laid out in a split plot designwith the two varieties of rice (NERICA 1 as inter Ã¢â‚¬Âspecific and FARO 46 asintra Ã¢â‚¬Âspecific) assigned to the main plot while seven weeding regimes (hoeweeding at 25, 45, and 65 days after sowing (DAS), 25 DAS, 45 DAS, 25 and45 DAS, application of 3’,3’ Ã¢â‚¬Â dichloropropionanilide /2, 4 – Dichlorophenoxyacetic acid (orizo plus R) by Candel Company Ltd. at 3.5 kg active ingredient(ai )ha Ã¢â‚¬Â1 at 25 DAS, hoe weeding at 25 DAS followed by orizo plus at 3.5 kg aiat 45 DAS and weedy check) constituted the sub – plots. The treatmentswere replicated three times in a split plot design. From the results, interspecificvariety (NERICA1) had better weed suppression ability with highergrain yield of 3.1 t ha Ã¢â‚¬Â1 than the intra‐specific variety (FARO 46). Weed controlwas better when hoe weeding was done at 25, 45 and 65 DAS or 25 and45 DAS and at 25 DAS followed by orizo plus at 45 DAS than in other treatments.However, hoe weeding at 25, 45 and 65 DAS gave significantlygreater grain yield than other treatments. Although economic yield was obtainedfrom hoe weeding at 25 DAS followed by orizo plus at 45 DAS.

scholarly journals PENGENDALIAN GULMA DENGAN BEBERAPA JENIS MULSA PADA BEBERAPA VARITAS TANAMAN PADI SAWAH (Oryza sativa L.) DENGAN METODE SYSTEM OF RICE INTENSIFICATION (SRI)

2019 ◽  
Vol 4 (2) ◽  
pp. 74
Author(s):  
Amir Mahmud ◽  
Mukhlis Mukhlis
Keyword(s):  
Oryza Sativa ◽  
Oryza Sativa L ◽  
System Of Rice Intensification ◽  
Eleusine Indica ◽  
Split Plot ◽  
Rice Intensification ◽  
Plot Design

Penelitian ini telah di lakukan di Desa Purwodadi Kecamatan Padang Sidimpuan Batunadua Kota Padangsidimpuan Provinsi Sumatera Utara dari bulan Mei sampai dengan bulan Agustus 2017. Tujuan dari penelitian ini adalah untuk menguji beberapa jenis mulsa dalam mengendalikan gulma pada beberapa varietas tanaman padi sawah dengan metode System Of Rice Intensification. Percobaan ini menggunakan Rancangan Petak Terpisah (Split plot design) dalam pola RAK dengan dua faktor. Faktor utama adalah varietas padi sawah yang terdiri dari tiga taraf perlakuan yaitu varitas Aryze H6444, varitas Situ Bagendit dan varitas Siganteng. Faktor anak petak adalah penggunaan mulsa yang terdiri dari empat taraf perlakuan yaitu jerami padi, sekam padi, titonia dan mulsa plastik hitam.Varitas Aryze H6444 Gold dan varitas Siganteng menunjukkan hasil terbaik pada penggunaan mulsa plastik, sedangkan varitas Situ Bagendit menunjukkan hasil terbaik pada mulsa jerami padi. Jenis gulma Ludwigia octovalvis merupakan gulma yang mendominasi pada pemberian mulsa jerami padi, sekam padi dan mulsa plastik. Sedangkan pada mulsa Titonia jenis gulma yang mendominasi adalah gulma Eleusine indica. Penggunaan mulsa plastik lebih baik dari pada penggunaan mulsa Titonia, mulsa jerami padi dan sekam padi dalam menekan pertumbuhan gulma pada tanaman padi sawah dengan sistem SRI. Kata Kunci : pengendalian gulma, jenis mulsa, beberapa varitas,metode SRI.

scholarly journals Análisis Prospectivo de la Detección Hiperespectral de Cultivos de Arroz (Oryza Sativa L.)

2018 ◽  
Vol 3 (1) ◽  
pp. 69
Author(s):  
Jorge Serrano ◽  
José Fábrega ◽  
Evelyn Quirós ◽  
Javier Sánchez- Galán ◽  
José Ulises Jiménez
Keyword(s):  
Principal Component Analysis ◽  
Oryza Sativa ◽  
Oryza Sativa L ◽  
Principal Component ◽  
Field Measurements ◽  
Spectral Signature ◽  
Prospective Analysis ◽  
Rice Cultivars ◽  
Crop Varieties ◽  
Nm Range

The objective of this work is to perform a prospective analysis of the wavelengths that can be used to recognize a rice crop due to its phenological status and variety. For this purpose, field measurements of spectral signature in the 350 nm -1049 nm range were employed. The rice cultivars FCA 616FL and IDIAP 54-05 were used. The study site was located in the Juan Hombrón area in the Coclé province, Panama. A principal component analysis (PCA) was carried out, which resulted in the lengths 728.16, 677.89 and 785.48 nm let phenological differentiation within the cultivar FCA 616FL and IDIAP 54-05, the lengths 729.72, 814.58 and 666.81 nm let distinguish between crop varieties FCA 616FL and IDIAP 54-05 in vegetative phase.Keywords: Rice, reflectance, hyperspectral signature, phonological state.

scholarly journals Penerapan Padi-Itik Pada Berbagai Sistem Tanam dalam Mengendalikan Serangga Hama di Tanaman Padi (Oryza sativa L)

2020 ◽  
Vol 8 (1) ◽  
pp. 130-138
Author(s):  
Sumini Sumini ◽  
Etty Safriyani ◽  
Holidi Holidi ◽  
Sutejo Sutejo ◽  
Samsul Bahri ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Oryza Sativa L ◽  
Split Plot

Penelitian bertujuan untuk mengevaluasi penerapan padi-itik pada berbagai sistem tanam dalam mengendalikan hama di tanaman padi. Penelitian dilaksanakan di lahan sawah irigasi di Desa S.Kertosari Kabupaten Musi Rawas dari bulan Agustus sampai bulan November 2016. Penelitian menggunakan metode Eksperimental dengan Rancangan Petak Terbagi (split plot desing) dengan 2  perlakuan dan  3 kali ulangan. Perlakuan itik (I) sebagai petak utama dan sistem tanam (S) sebagai anak petakan. Perlakuan itik (I) sebagai petak utama meliputi I0 = Tanpa itik (Kontrol), I1 = Padi-Itik. Sedangkan perlakuan sistem tanam (S) sebagai anak petakan meliputi S1 = Sistem Tegel, S2 = Jajar Legowo 2:1, S3 = Jajar Legowo 3:1, S4 = Jajar Legowo 4:1, S5 = Jajar Legowo 5:1. Hasil penelitian menunjukan bahwa perlakuan itik dan sistem tanam memberikan hasil yang berbeda nyata pada populasi hama wereng coklat namun berbeda tidak nyata pada hama penggerek batang padi. Pesentase serangan hama wereng coklat dan penggerek batang padi tertinggi pada kombinasi perlakuan tanpa itik dan sistem tanam tegel (I0S1).  Populasi hama tertinggi pada perlakuan tanpa itik (I0) yaitu wereng coklat sebanyak 3,03 ekor dan penggerek batang padi 2,50 ekor. Populasi hama tertinggi pada perlakuan sistem tanam tegel S1 yaitu wereng coklat sebanyak 2,53 ekor dan penggerek batang padi pada perlakuan S4 yaitu 2,54 ekor. Perlakuan itik (I1) dan sistem tanam jajar legowo 2:1 (S2) serta kombinasi perlakuan itik dan sistem tanam jajar legowo 2:1 (I1S2) memberikan hasil terbaik terhadap semua peubah serta mampu menekan populasi dan persentase serangan hama.

scholarly journals Modulation of ascorbate-glutathione cycle by selenate and sulphate treatments in the seedlings of two rice (Oryza sativa L.) cultivars

2020 ◽  
Vol 7 (3) ◽  
Author(s):  
Debarati Das ◽  
Paulin Seal ◽  
Sabarni Biswas ◽  
Asok K Biswas
Keyword(s):  
Oryza Sativa ◽  
Growth And Development ◽  
Elevated Level ◽  
Oryza Sativa L ◽  
Ascorbate Oxidase ◽  
Rice Cultivars ◽  
Rice Seedlings ◽  
Thiol Metabolism ◽  
Regulatory Enzymes ◽  
Glutathione Cycle

The trace element Selenium (Se) has a dual role in the growth and metabolism of plants. Low concentration of selenium (2 ?M selenate) promotes growth and counteracts the detrimental effects of abiotic stress as opposed to higher levels (?10 ?M) where it acts as a pro-oxidant. We focused on both individual and interactive influence of selenate and sulphate on thiol metabolism in seedlings of rice cultivars, satabdi and khitish. Inhibition of ascorbate contents by about 17% on an average, in the test seedlings treated with Se correlated with increased activities of ascorbate peroxidase and ascorbate oxidase in the cultivars. The glutathione levels also increased significantly, on an average by about 102% in roots and 74% in shoots of cv. satabdi compared to a rise, by about 49% in roots and 56% in shoots of cv. khitish. The elevated level of glutathione coincided with the stimulatory influence of Se on its regulatory enzymes. Concomitantly the levels of ?-tocopherol and phytochelatins were also induced in both the test cultivars. Increase in ?-tocopherol activity reached a maximum by about 47% in roots and 80% in shoots of cv. satabdi whereas it increased by about 36% in roots and about 64% in shoots of cv. khitish. Substantive increase in the levels of PC4 followed by PC2 and PC3 was also noted. The effects were found to be less conspicuous in shoots than in roots. Rice seedlings exposed to combined Se and 10mM sulphate treatments showed improved growth and development as a result of better thiol metabolism due to amelioration of the adverse effects caused by selenium alone on all the parameters tested.

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