scholarly journals Cytokinin for Growth and Productivity of Polyploid Chrysanthemum on Third Generation

2021 ◽  
Vol 748 (1) ◽  
pp. 012031
Author(s):  
Ai Komariah ◽  
Elly Roosma Ria ◽  
Endah Islamiyati ◽  
Noertjahyani ◽  
Nunung Sondari ◽  
...  

Abstract Chrysanthemum (Chrysanthemump) is a one of the most popular cutting flower commodities in Indonesia. The beauty of colors and variations in the shape of flowers and the low level of withering cause Chrysanthemum to be in great demand. The polyploid chrysanthemum has some superior properties but the growth rate and flowering time is slow due to colchicine. The study aimed to determine the influence of the concentration of the cytokinins in the growth and productivity of chrysanthemum polyploid genotypes. The experimental design as used Split Plot Design consists of 2 factors and 2 replications. The first factors were concentration of the cytokinin (Si, i are 1,…,4) as a main plot with different levels about 0, 1, 2,3, 4 ml L−1 of cytokinin solutions, respectively. The second factorswere the third generation of the polyploid chrysanthemum (G) genotype as a sub plot with 4 genotype, namely: g0 = KRA0, g1 = KRA1, g2 = KRA2, and g3 = KRA3. Based on the experiments and analysis results, it was found that the treatment of 3 ml L−1 of the cytokinin solution produced 16 shoots while the polyploid chrysanthemum genotype KRA2 gave the best response to the number of shoots at 12 WAP compared to other polyploid chrysanthemum genotypes.

Agrotek ◽  
2018 ◽  
Vol 3 (2) ◽  
Author(s):  
Baso Daeng

<em>The rate of conversion of paddy fields and irrigation water crisis suggest to consider the development of upland rice.� Empowerment of organic-based dryland done to increase rice, as well as environmental sustainability efforts.� The purpose of this experiment was to determine the effect of organic fertilizer residue to upland rice in the second growing season.� Experiments using a split-split plot design.� The main plot consisted of a dosage of 50% and 100% organic fertilizer in the first growing season.� Sub plot consisted of chicken manure (20 tons ha<sup>-1</sup>), <span style="text-decoration: underline;">Centrosema</span>� <span style="text-decoration: underline;">pubescens</span> (4.3 tons ha<sup>-1</sup>) + chicken manure (10 tons ha<sup>-1</sup>), and <span style="text-decoration: underline;">Thitonia</span> <span style="text-decoration: underline;">diversifolia</span> (4.3 tons ha<sup>-1</sup>) + chicken manure (10 tons ha<sup>-1</sup>).� Sub-sub plot consist of Danau Gaung and Batu Tegi varieties.� The different types of fertilizer had no effect on plant productivity.� The addition of <span style="text-decoration: underline;">Thitonia</span> <span style="text-decoration: underline;">diversifolia</span> gave a good effect on some growth variable and its resistance due pathogen attack.� Batu Tegi varieties are varieties that give the best response from an organic fertilizer.� Interaction between dosage, type of fertilizer, and varieties do not provide areal impact.</em>


2020 ◽  
Vol 11 (6) ◽  
pp. 585-589
Author(s):  
Imnatemjen Aier ◽  
◽  
D. Nongmaithem ◽  

A field experiment was conducted in the Experimental Research Farm of School of Agricultural Sciences and Rural Development (SASRD), Nagaland University during the kharif season 2018. Groundnut variety ICGS-76 was sown @ 70 kg ha-1 for 60×20 cm2 spacing. The experiment was laid in split plot design with three replications. The main plot treatments consisted of two lime levels: lime @ 0 t ha-1 and lime @ 3 t ha-1 while the sub- plot treatments consisted of five sulphur levels: sulphur @ (0 kg ha-1, 10 kg ha-1, 20 kg ha-1, 30 kg ha-1 and 40 kg ha-1 along with recommended dose of fertilizer at 20:60:40 kg N, P2O5 and K2O ha-1 respectively in the form of diammonium phosphate and murate of potash. The results showed that application of lime @ 3 t ha-1 gave higher growth and yield attributes compared to no lime and also application of sulphur @ 40 kg ha-1 gave higher growth and yield attributes compared to lower doses of sulphur though there was only slight increase in the attributes between each successive doses of sulphur. Overall application of lime and sulphur increased all the yield attributes of groundnut, where the highest number of pods plant-1, seeds pod-1, 100 kernels weight, pod yield, kernel yield and stover yield were recorded when treatment was done with lime @ 3 t ha1 and sulphur @ 40 kg ha-1.


Jurnal Agro ◽  
10.15575/4590 ◽  
2019 ◽  
Vol 6 (1) ◽  
pp. 35-48
Author(s):  
Yuyun Yuwariah ◽  
Sheli Mustikasari Dewi ◽  
Warid Ali Qosim ◽  
Anne Nuraini

Jawawut merupakan salah satu tanaman pangan lokal Indonesia yang belum banyak dikembangkan dan dimanfaatkan sebagai sumber pangan. Penelitian ini bertujuan untuk mendapatkan genotip jawawut yang memberikan pengaruh paling baik terhadap pertumbuhan dan hasil pada berbagai tingkat pemberian air di rumah plastik. Penelitian dilaksanakan pada bulan Juni sampai dengan September 2017 di Kebun Percobaan Fakultas Pertanian, Universitas Padjadjaran. Penelitian menggunakan Rancangan Petak Terbagi (Split Plot Design) dengan 3 ulangan. Petak utama terdiri dari tiga macam genotip yaitu genotip 44, 46, dan 48. Anak petak terdiri dari tiga taraf kapasitas lapang  yaitu 75%, 50% dan 25%. Hasil penelitian menunjukkan perlakuan pemberian air 25% kapasitas lapang berpengaruh paling buruk terhadap  proses fisiologis pertumbuhan dan hasil tiga genotip jawawut. Genotip 44 dan 46, pada pemberian air 50 % KL menghasilkan  konduktan stomata terbaik. Genotip 46 dan 48 memberikan pengaruh paling baik terhadap proses fisiologis pertumbuhan dan hasil jawawut yaitu jumlah anakan per rumpun.ABSTRACTMillet is one of Indonesia's local food crops that has not been widely developed as food sources. The purpose of this study was to obtain the genotypes of millet which gave the best effect on the growth and yield at various levels of water supply in the plastic house. The study was conducted from June to September 2017 at the Experimental Station of the Faculty of Agriculture, Universitas Padjadjaran. The research used the Split Plot Design with three replications. The main plot factor consisted of three levels of treatment; genotypes 44, 46, and 48. The subplot factor consisted of three stages of different treatment of the field capacity; 75%, 50% and 25%. The results showed the treatment of 25% water to field capacity had the worst effect on the physiological process of growth and yield of three millet genotypes. Genotypes 44 and 46, at 50% field capacity, produced the best stomatal conductance. Genotype 46 and 48 showed the best response to the physiological processes for the number of tillers.


Author(s):  
KM Tripathi ◽  
DD Dhakal

The experiment was conducted to assess the effectiveness of paclobutrazol in inducing off-season flowering in two Nepalese and one Indian commercial landraces of acid lime during 2002 to 2003 at Rampur, Chitwan, Nepal. The experiment was laid out in split-plot design with landraces as main plot and dates of application of paclobutrazol as sub plot factors. Fourteen month-old seedlings of landraces planted on 28 May 2001 were soil drenched with paclobutrazol (25%) @ 5 ml per tree at the collar region of the tree on four different dates at 50 days interval beginning from 17 July to 17 December, 2002. Paclobutrazol applied on 17 July was the most effective in inducing early flowering at fourth week of December, which was 70 days ahead of normal flowering date. The subsequent applications on September, October and December also advanced flowering time by 59, 41 and 32 days, respectively. The earlier (July) application of paclobutrazol was superior among the treatments under Chitwan condition to induce and advance early flowering for offseason market. Key words: Cultar, sourlime, germplasm J. Inst. Agric. Anim. Sci. 26:87-92 (2005)


Author(s):  
, Susilawati ◽  
Rujito Agus Suwignyo ◽  
, Munandar ◽  
Mery Hasmeda

The research objective was to study the agronomic and physiological characteristics of red chilli (Capsicum annuumL.) varieties under waterlogging stress. These studies were conducted at two locations: in Palembang, South Sumatra, from February to August 2010 and in Bogor in West Java, from September to November 2010. Experiments in Palembang was using split plot design with three replications. The main plot was waterlogging treatment for 1, 2, 3 and 4 days. The subplot was red chilli varieties: Kiyo F1, Riawan, Ferosa, Bravo F1 and Laris. Experiments in Bogor was conducted without the use of experimental design; the same plant varieties were waterlogged for 2 and 4 days. The results showed that waterlogging caused root damages on all varieties. Kiyo F1 had better agronomic characters and high levels of tolerance than other varieties. The content of ethylene in all varieties increased with increasing time of waterlogging, except for Laris. In all varieties both leaf chlorophyll and tissue N content tend to decline with the increase in waterlogging duration. However Bravo F1 experienced an increase in the chlorophyll content whereas Kiyo F1 had an increase in N in the plant tissue. Keywords: agronomic character, physiological character, red chili, waterlogging


2018 ◽  
Vol 19 (2) ◽  
pp. 94
Author(s):  
Sri Hartati

<p>Performance of Several Mungbean Lines Resulted from Mutation of Co-60 Gamma Rays Irradiation. Sri Hartati, 23 pages. The objectives of the research were to evaluate the agronomic traits of the fourth generation (M3) of mungbean mutants and to get at least one potential genotype for further selection in order to achieve a new high yielding variety. He research was done in Grumosol of Joho Mojolaban, Sukoharjo.</p><p>The experimental design was completely randomized design with 12 treatments: G1/V1R0: the third generation of ‘Merpati’ with no radiation; G2/V1R1: the third generation of ‘merpati’ radiated at rate of 5 K rad; G3/ViR2: the third generation of ‘Merpati’ radiated at rate of 10 K rad; G4/V1R3: the third generation of ‘Merpati’ radiated at rate of 15 K rad; G5/V2R0: the third generation of ‘Camar’ with no radiation; G6/V2R1: the third generation of ‘Camar’ radiated at rate of 10 K rad; G7/V2R3: the third generation of ‘Camar’ radiated a rate of 15 K rad; G9/V3R0: the third generation of ‘Walet’ no with radiation; G10/V3R1: the third generation of ‘Walet’ radiated at rate of 5 K rad; G11/V3R2: the third generation of ‘Walet’ radiated at rate of 10 K rad; G12/V3R3: the third generation of ‘Walet’ radiated at rate of 15 K rad.</p><p>The research conclude that weight of 1000 seeds and weight of seed per plot from the first to the fourth generation were achieved by ‘Walet’ variety irradiated at the rate of 10 K rad; and thus, this was the potential lines for further selection program.</p>


Author(s):  
B Irawan ◽  
◽  
R P Tamin ◽  
R A Hardiyanti

The response of tropical trees to the change of light intensity has been reported to be varied among different species. Some reports argued that the growth was increasing parallel to the increasing of light intensity, but other reports mentioned that the sensitivity to the light intensity was depending on the species. Another environmental factor that has been scientifically proven to affect tree growth is humidity. While humidity itself also directly affected by the light intensity in the forest ecosystems. Therefore, it is possible that the growth pattern of trees under different light intensities is also affected by air humidity under the canopy. This research aimed to study the growth response of a light-demanding Alstonia scholaris and a shade-tolerant Eusideroxylon zwageri to the different levels of air humidity and light intensity. The experiment was conducted in Jambi, Indonesia from April to November 2019. The experiment was carried out using split plot design with factorial treatments. The main plot was the air humidity with three levels and the sub plots was light intensity with five levels. Four replicates were applied. In general, the A. scholaris tends to be more sensitive to the humidity and light intensity compared to E. zwageri. In particular, A. scholaris tends to be more sensitive to the light intensity while, E, zwageri is more sensitive to the humidity. However, there is also strong indication that the effects of light intensity to the growth, especially for A. scholaris, was affected by the humidity level.


2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Yu-Guang Zhou ◽  
Yong Xiong ◽  
Chao-Wu Yang ◽  
Xiao-Song Jiang ◽  
Jin-Shan Ran ◽  
...  

The micromolar calcium activated neutral protease (CAPN1) and calpastatin (CAST) have been widely regarded as genes related to muscle growth and meat tenderness. The objective of this study was to verify the association of SNPs of CAPN1 and CAST genes with carcass and tenderness traits and search the possible change patterns of SNPs in CAPN1 and CAST genes in six generations of broiler breeding process for growth rate, efficiency, and reproduction, during the third generation and the ninth generation, respectively. We found that, for CAPN1, genetic effects between SNPs (G3535A, C7198A) and meat tenderness were similar in different generations, while SNP3 (G7324A) was a novel polymorphism and had significant association with carcass and tenderness traits (P<0.05) in this study. Furthermore, there was significant association between SNP4 (G9950A) and carcass indexes instead of tenderness traits (P<0.05) which was consistent in the two generations. Moreover, although SNP6 (G37868A) of CAST had no relevance to carcass traits or tenderness traits in the third generation, it showed significant association with LW and CW in the ninth generation (P<0.05).


2020 ◽  
Vol 25 (3) ◽  
pp. 334-341
Author(s):  
Khoryfatul Munawaroh ◽  
Sri Wilarso Budi ◽  
Prijanto Pamoengkas

Open pit mining of silica sand causes some soil degradations and environmental impacts, such as lowering soil pH, lowering soil fertility, soil compaction, and toxicity of micronutrients such as Al, Fe, and Zn. The aim of this study was to analyze the soil properties of land post mining of silica sand and to analyze the growth response of Falcataria sp. and Ochroma bicolor by combination of soil ameliorant and MycoSilvi. The experimental design was split plot design of two treatment factors, MycoSilvi and soil ameliorant. The main plot is MycoSilvi that consist of two levels (MycoSilvi and without MycoSilvi). The subplot is soil ameliorant that consisted of six levels (compost 0 g, lime 0 g; compost 0 g, lime 1.56 g; compost 0 g, lime 3.12; compost 9 g, lime 0 g; compost 9 g, lime 1.56 g; compost 9 g, lime 3.12 g). The results showed that the soil ameliorant (lime 3.12 g and compost 9 g) and MycoSilvi was the best treatment to increase height, diameter, biomass, and mycorrhizal colonization of Falcataria sp. and O. bicolor.   Keywords: MycoSilvi, reclamation, soil ameliorant


HortScience ◽  
1995 ◽  
Vol 30 (4) ◽  
pp. 762B-762
Author(s):  
George C.J. Fernandez

Split-plot design is a very popular experimental design in analyzing factorial treatments in horticultural experiments. Two different sizes or types of experimental units are assigned to main plot and the split-plot treatments. The SAS procedure GLM with the TEST option is commonly used to analyze the split-plot data by assigning the correct error term to test the main plot factor. In SAS GLM, no option is available to compare the two main factors within a split-plot factor. The CONTRAST tests and LSMEAN comparisons are valid only for comparing split-plot factors within a main plot treatment. The main factor standard error provided by the LSMEAN option is also incorrect. The new PROC MIXED procedure available in SAS 8.08 or above can be used to correct these problems in split-plot analysis. The analysis of split-plot experiments using the PROC MIXED is presented here.


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