scholarly journals 841 PB 387 PHOSPHORUS RATES AND MEDIA FOR PRODUCTION OF TOMATO TRANSPLANTS USING THE FLOAT SYSTEM

HortScience ◽  
1994 ◽  
Vol 29 (5) ◽  
pp. 553f-553
Author(s):  
Jim E. Wyatt ◽  
Marla C. Akridge
Keyword(s):  
Leaf Area ◽  
Plant Height ◽  
Production System ◽  
Dry Weight ◽  
Stem Diameter ◽  
Plastic Foam ◽  
Growing Media ◽  
Root Dry Weight ◽  
P Rate ◽  
Nutrient Solutions

Tomato transplants were grown in plastic foam trays floated in nutrient solutions using a system adapted from tobacco transplant growers. Nutrient solutions were compared which contained equivalent amounts of nitrogen and potassium and either 35 or 70 mg·liter-1 phosphorus (P). Growing media tested were 1) Jiffy-Mix*, 2) Pro-Mix®, 3) horticultural vermiculite, or 4) perlite. The higher P rate caused increases in stem diameter, and in plant fresh and dry weight. Plant height, root dry weight and leaf area were not affected by P rate. Transplants grown in Pro-Mix® had significantly greater plant height and stem diameter than other media. Leaf area, and plant fresh and dry weight did not differ between Pro-Mix* and Jiffy-Mix@. Vermiculite and perlite produced smaller tomato transplants and should not be considered when using this production system.

scholarly journals The Vegetative Growth Response of Detam Soybean Varieties towards Bacillus subtilis and Trichoderma sp. Applications as Bio-fertilizer

2021 ◽  
Vol 232 ◽  
pp. 03024
Author(s):  
Agus Miftakhurrohmat ◽  
Sutarman
Keyword(s):  
Bacillus Subtilis ◽  
Leaf Area ◽  
Plant Height ◽  
Dry Weight ◽  
Stem Diameter ◽  
Observation Data ◽  
Root Dry Weight ◽  
Randomized Design ◽  
Number Of Leaves ◽  
Soybean Plants

This study aims to determine the effect of bacterial isolates of Bacillus subtilis Bs-Sdj-01 and Trichoderma sp. Tc-Jro-02 isolates as biological fertilizer in plant growth until the end of the vegetative phase. The experiment was arranged factorially in a Completely Randomized Design (CRD) with each factor being the application of B. subtilis consisting of and without B. subtilis and the Trichoderma application consisting of with and without Trichoderma; the experiment was repeated four times. The observed variables were: plant height, stem diameter, number of leaves, leaf area, stover dry weight, root dry weight, and B. subtilis population at the end of the observation. Data were analyzed using with ANOVA and HSD tests at the 5% level. The combination of Trichoderma sp. and B. subtilis bacteria produce the highest increase in plant height, stem diameter, number of leaves, leaf area, stover dry weight, and root dry weight of soybean plants up to 35 days after planting and increase B. subtilis population grew from 1010 CFU.g-1 to be 4.43x1011 CFU.g-1. The presence of Trichoderma supports the activity of B. subtilis in the rhizosphere of the Detam variety soybean plantation.

scholarly journals Effect of Photoselective Shadecloth and Plastic Film on Growth of Chrysanthemums under Supplemental Lighting

HortScience ◽  
2004 ◽  
Vol 39 (4) ◽  
pp. 837C-837
Author(s):  
Kent D. Kobayashi*
Keyword(s):  
Leaf Area ◽  
Plant Height ◽  
Wide Spectrum ◽  
Dry Weight ◽  
Stem Diameter ◽  
Leaf Number ◽  
Plastic Film ◽  
Root Dry Weight ◽  
Supplemental Lighting ◽  
Leaf Dry Weight

Controlling plant height is an important practice in the ornamental plant industry. With high cost of growth regulators and concern about their environmental aspects and health of workers, alternative ways of controlling growth may be advantageous. Objective was to determine effect of photoselective shadecloth and plastic film on growth of `Barbara', `Shasta', and `Chesapeake' mums under supplemental lighting. In experiment 1, `Barbara' plants (two and four weeks old) were placed under either wide spectrum fluorescent lamps and incandescent light bulbs (control) or lights covered with photoselective shadecloth. In experiment 2, 3-week-old `Shasta' and `Chesapeake' plants were placed under lights or lights covered with photoselective plastic film. Effect of shadecloth differed with age of `Barbara' plants. For 1-month-old plants placed under lights, stem diameter, stem dry weight, and root dry weight were reduced under shadecloth compared to control. No differences were observed for plant height, pot height, leaf number, leaf area/plant, and leaf dry weight. For 2-week-old plants, leaf number, leaf area/plant, leaf dry weight, and stem dry weight were less under shadecloth than control. No effects on plant height, pot height, stem diameter, and root dry weight were observed. Plastic film reduced plant height and pot height for `Shasta' and `Chesapeake' plants and reduced stem dry weight and total plant dry weight for `Shasta'. No differences were seen for other growth measurements. This study indicated photoselective shadecloth did not control height of `Barbara' and its effect on growth was influenced by plant age. Photoselective plastic film controlled height of `Shasta' and `Chesapeake' and offers an alternative method for growth control of mum plants.

scholarly journals RESPONSE OF GAMAL (Gliricidia sepium) AND INDIGOFERA (Indigofera zollingeriana) FORAGE ON APPLICATION OF ANORGANIC AND ORGANIC FERTILIZER

Pastura ◽  
2019 ◽  
Vol 8 (1) ◽  
pp. 33
Author(s):  
Roni N.G.K. ◽  
S.A. Lindawati
Keyword(s):  
Leaf Area ◽  
Plant Height ◽  
Plant Species ◽  
Organic Fertilizer ◽  
Dry Weight ◽  
Stem Diameter ◽  
Inorganic Fertilizer ◽  
Organic Fertilizers ◽  
Total Dry Weight ◽  
Leaf Dry Weight

The productivity of forage depends on the availability of nutrients in the soil where it is grown, so fertilization to replace harvested produce is absolutely necessary. This study aims to study the response of gamal and indigofera forage on application of inorganic and organic fertilizers. Research using a completely randomized design factorial pattern of two factors, the first factor is the type of plant (G = Gamal; I = Indigofera) and the second factor is the type of fertilizer (T = without Fertilizer; A = Inorganic fertilizer NPK; K = commercial organic fertilizer; O = conventional organic fertilizer; B = bioorganic fertilizer), repeated 4 times so that it consists of 40 experimental units. The variables observed were plant height, number of leaves, stem diameter, leaf dry weight, stem dry weight, total dry weight of leaves, ratio of dry weight of leaves/stems and leaf area per pot. The results showed that there was no interaction between plant species and types of fertilizer in influencing the response of gamal and indigofera plants. Plant species have a significant effect on stem diameter, while fertilizer types have a significant effect on plant height, leaf dry weight, total dry weight of leaves and leaf area per pot. Based on the results of the study it can be concluded that the response of gamal plants is similar to indigofera, all types of fertilizers can improve the response of plants and organic fertilizers produce the same crop response with inorganic fertilizers. Keywords: gamal, indigofera, inorganic fertilizer, organic fertilizer

scholarly journals Evaluation of growth and yield of selected hybrid and inbred rice varieties grown in net-house during transplanted aman season

1970 ◽  
Vol 34 (1) ◽  
pp. 67-73
Author(s):  
M SH Islam ◽  
MSU Bhuiya ◽  
AR Gomosta ◽  
AR Sarkar ◽  
MM Hussain
Keyword(s):  
Leaf Area ◽  
Plant Height ◽  
Dry Matter ◽  
Dry Weight ◽  
Growth And Yield ◽  
Rooting Depth ◽  
Rice Varieties ◽  
Root Dry Weight ◽  
Matter Production ◽  
1000 Grain Weight

Pot experiments were conducted during T. aman 2001 and 2002 (wet season) at Bangladesh Rice Research Institute (BRRI) in net house. Hybrid variety Sonarbangla-1 and inbred modern variety BRRI dhan-31 were used in both the seasons and BRRI hybrid dhan-l was used in 2002. The main objective of the experiments was to compare the growth and yield behaviour of hybrid and inbred rice varieties under controlled condition. In 2001, BRRI dhan-3l had about 10-15% higher plant height, very similar tillers/plant, 15-25% higher leaf area at all days after transplanting (DAT) compared to Sonarbangla-1. Sonarbangla- 1 had about 40% higher dry matter production at 25 DAT but had very similar dry matter production at 50 and 75 DAT, 4-11% higher rooting depth at all DATs, about 22% higher root dry weight at 25 DAT, but 5-10% lower root dry weight at 50 and 75 DAT compared to BRRI dhan-31. The photosynthetic rate was higher (20 μ mol m-2/sec-1) in BRRI dhan-3l at 35 DAT (maximum tillering stage) but at 65 DAT, Sonarbangla-l had higher photosynthetic rate of 19.5 μ mol m-2 sec-1. BRRI dhan-3l had higher panicles/plant than Sonarbangla-1, but Sonarbangla-1 had higher number of grains/panicle, 1000-grain weight and grain yield than BRRI dhan-31. In 2002, BRRI dhan-31 had the highest plant height at 25 DAT, but at 75 DAT, BRRI hybrid dhan-l had the highest plant height. Sonarbangla-1 had the largest leaf area at 25 and 50 DAT followed by BRRI dhan-31, but at 75 DAT, BRRI dhan-31 had the largest leaf area. The highest shoot dry matter was observed in BRRI dhan-31 followed by Sonarbangla-1 at all DATs. Sonarbangla-1 had the highest rooting depth and root dry weight at all DATs. BRRI dhan-31 gave the highest number of panicles/plant followed by Sonarbangla-I, BRRI hybrid dhan-l had the highest grains/panicle followed by BRRI dhan-31 and Sonarbangla-I had the highest 1000-grain weight followed by BRRI dhan-31. The highest amount of grains/plant (34.6 g) was obtained from BRRI dhan-31. Key Words: Shoot dry matter; root dry weight; leaf area; photosynthesis; grain yield. DOI: 10.3329/bjar.v34i1.5755Bangladesh J. Agril. Res. 34(1) : 67-73, March 2009

scholarly journals IMPROVING QUALITY OF CONTAINER-GROWN PEPPER TRANSPLANTS THROUGH FERTILITY MANIPULATION

HortScience ◽  
1995 ◽  
Vol 30 (3) ◽  
pp. 428d-428
Author(s):  
Darbie M. Granberry ◽  
William Terry Kelly
Keyword(s):  
Leaf Area ◽  
Plant Height ◽  
Stem Diameter ◽  
Plant Weight ◽  
Optimum Height ◽  
Number Of Leaves ◽  
Southern Georgia ◽  
Soil Mix ◽  
Intact Root ◽  
Nutrient Solutions

During summer in southern Georgia, greenhouses often reach or exceed 49C. Subsequently, transplants grown in these houses tend to exceed optimum height. To determine effects of N and P fertility levels on pepper (Capsicum annuum) transplant growth, applications of nutrient solutions with 58, 12, and 0 ppm N and 114, 57, and 0 ppm P205 were applied to recently emerged Capistrano bell pepper beginning 12 Aug. 1994. Plants were grown in polystyrene flats using a commercial noncharged artificial soil mix. Nutrient solutions were applied as needed to maintain adequate moisture until 31 Aug., except for two treatments that received only water after 22 Aug. Data were taken on 22 and 31 Aug. With 58 ppm N, 0 P decreased plant height, leaf count, leaf area, and plant weight. Higher N increased plant height, ratings of intact root plugs and washed roots, stem diameter, leaf count, leaf area, and plant weight. At 12 ppm N, P had no significant effect on transplant growth. Withholding fertilizer the final week reduced plant height, ratings of intact root plugs, stem diameter, number of leaves, leaf area, and plant weight.

scholarly journals Vigor Bibit Nangka Tulo setelah Konservasi pada Media Tanam Organik yang Berbeda

2015 ◽  
Vol 5 (3) ◽  
pp. 183 ◽  
Author(s):  
Enny Adelina ◽  
Vanny M.A.Tiwow ◽  
, Adrianton
Keyword(s):  
Factorial Design ◽  
Leaf Area ◽  
Organic Material ◽  
Block Design ◽  
Dry Weight ◽  
Stem Diameter ◽  
Seedling Height ◽  
Growing Media ◽  
Seed Conservation ◽  
Commercial Scale

<p>ABSTRACT</p><p>Provision  of  quality  seedling  materials  by  high  vigority  seedling  is  one of the  important supporting system to  the  development  of  commercial-scale jackfruit  farms.  After passing through  a period of  jackfruit  seed conservation period, the viability of the seed is decreasing,  and a propertreatment  is needed  before  planting.  Organic  growing  media  for  seedling  may  have beneficial  to maintain  seedling  vigority.  The  use  of  waste  organic material for  improving  seed  vigority  is  less researched. The  purpose of this experiment was  to  identify  the best  growing media  for improving Tulo jackfruit  seed  vigority  after  a  period  of  conservation.  Experiment  was conducted  using  arandomized block design  (RBD)  factorial design, consisting of a  seed  source  (conservation  period) and  the  type  of  organic  growing media. The experimental  results  indicated  that  the  source  of seedling  and growing  media  affected  strongly  the  leaf  area,  dry  weight  and  seedling vigorhypothetical index. The interaction between the seedling source and organic growing media showedsignificant differences in seedling height, stem diameter and leaf numbers.</p><p>Keywords: seedling vigority, jackfruit, conservation, waste and organic growing media</p><p> </p><p>ABSTRAK</p><p>Penyediaan bahan tanam yang bermutu melalui vigor bibit yang tinggi menjadi daya dukung dalam pengembangan tanaman nangka dalam pembuatan kebun-kebun berskala komersial. Setelah melewati  periode  konservasi  benih  nangka mengalami  penurunan  viabilitas  sehingga  dibutuhkan perlakuan yang tepat ketika penanaman akan dilakukan. Salah satu cara meningkatkan vigor bibit adalah memberikan media tanam organik yang dapat meningkatkan vigor bibit, bahan organik yang berasal  dari  limbah  belum  banyak  dikaji efektivitasnya dalam  meningkatkan  vigor  bibit.  Tujuan percobaan untuk memperoleh media tanam terbaik yang menunjang vigor bibit nangka Tulo setelah periode  konservasi.  Percobaan  dilakukan  menggunakan  Rancangan Acak  Kelompok (RAK)  pola faktorial,  terdiri  dari  sumber  benih  (periode konservasi)  dan  jenis  media  tanam  organik.  Hasil percobaan menunjukkan bahwa sumber benih dan media tanam berpengaruh secara bebas terhadap luas daun, bobot kering bibit dan indeks vigor hipotetik. Interaksi sumber benih dan media tanan organik  menunjukkan  adanya  perbedaan  yang  nyata  terhadap tinggi  bibit,diameter  batang  dan jumlah daun.</p><p>Kata kunci: vigor bibit, nangka, konservasi, limbah dan media tanam organik</p>

scholarly journals Coir as an Alternative to Peat in Media for Tomato Transplant Production

HortScience ◽  
2002 ◽  
Vol 37 (2) ◽  
pp. 309-312 ◽  
Author(s):  
M. Arenas ◽  
C.S. Vavrina ◽  
J.A. Cornell ◽  
E.A. Hanlon ◽  
G.J. Hochmuth
Keyword(s):  
Leaf Area ◽  
Seedling Emergence ◽  
C:N Ratio ◽  
Dry Weight ◽  
Medium Composition ◽  
Stem Diameter ◽  
Tomato Seed ◽  
Root Dry Weight ◽  
Growth Differences ◽  
Summer Fruit

Sixteen media prepared from peat, coir, vermiculite, or perlite were used to determine the optimum growing media for tomato (Lycopersicum esculentum Mill.) transplants. Medium composition did not affect tomato seed emergence, although seedling emergence was higher in winter (90%) than summer (85%). Greatest transplant root dry weight, stem diameter, and leaf area were achieved in 50% to 75% peat + 25% to 50% vermiculite in summer. In winter, greatest transplant root dry weight, stem diameter, and leaf area were achieved in eight media: 100% peat, 75% peat + 25% vermiculite, 75% peat + 25% perlite, 50% peat + 50% vermiculite, 50% peat + 50% perlite, 25% peat + 50% coir + 25% vermiculite, 50% peat + 25%coir + 25% vermiculite, and 25% peat +25% coir +25% vermiculite +25% perlite. Transplants grown with >50% coir exhibited reduced plant growth compared to peat-grown transplants, a response that may be associated with high N immobilization by microorganisms and high C:N ratio. Despite transplant growth differences during the summer, fruit yields generally were unaffected by transplant media.

scholarly journals Tanggap Pertumbuhan Bibit Kopi Robusta (Coffea Robusta L.) Terhadap Berbagai Media Tanam Dan Frekuensi Penyiraman

1970 ◽  
Vol 5 (1) ◽  
Author(s):  
Lia Karlina Br Sembiring ◽  
Rosita Sipayung ◽  
Irsal
Keyword(s):  
Leaf Area ◽  
Plant Height ◽  
Rice Husk ◽  
Dry Weight ◽  
Stem Diameter ◽  
Leaf Number ◽  
Root Weight ◽  
Total Leaf Area ◽  
Total Leaf ◽  
Fresh Root

Massive breeding is often the case with the availability of the amount of water that can be stored on the media. The aim of this research is to know the influence of media and the frequency of watering on the growth of robusta coffee seedlings and to find the best media and optimum watering frequency. This experiment was conducted at the Faculty of Agriculture, University of Sumatera Utara, Medan from June to September 2017. The experimental method used was Factorial Randomized Block Design with 2 treatment factors, ie 1: planting medium ie, topsoil ; topsoil: sand (2: 1); topsoil: rice husk (2: 1), topsoil: charcoal husk (2: 1) and factor 2: watering frequency ie, watered once a day; watered every 4 days; watered 7 days and watered once every 10 days. The variable was plant height, stem diameter, total leaf number, total leaf area, fresh crown weight, canopy dry weight, fresh root weight, root dry weight, longest root, and canopy and root ratio. The results showed that planting media treatment had a significant effect on plant height variables, stem diameter increase, leaf number, total leaf area, fresh crown weight, canopy dry weight, fresh root weight, root dry weight, and root canopy ratio. The best treatment of planting medium was found in topsoil treatment: rice husk (2: 1). The treatment of watering frequency had a significant effect on the stem diameter 2 - 12 of the week after planting move observation variable, total leaf area, fresh crown weight, dry crown weight, fresh root weight, and dry weight of roots. The best treatment frequency of watering hose is watering every 4 days. The interaction between the two treatments had a significant effect on the diameter of the stem diameter variable, the total leaf area and the fresh weight of the canopy.

scholarly journals Assessment of the early growth of agarwood (Aquilaria crassna) seedlings under different sources of nutrients

2022 ◽  
Author(s):  
Kkiu Arunakumara ◽  
Bc Walpola ◽  
Chathura Karunatunga
Keyword(s):  
Leaf Area ◽  
Plant Height ◽  
Soil Ph ◽  
Dry Weight ◽  
Stem Diameter ◽  
Soil Parameters ◽  
P Content ◽  
Chlorophyll Index ◽  
Different Sources ◽  
Aquilaria Crassna

The effect of different sources of nutrients on the growth of Aquilaria crassna seedlings was assessed by raising seedlings in polybags treated with inorganic fertilizer (IF), organic fertilizer (OF) and biofertilizer (BF) either alone or in combinations. The pots were established following a completely randomized block design with eight treatments: (T1) soil without IF, OF or BF ‒ control; (T2) soil + IF; (T3) soil + OF; (T4) soil + BF; (T5) soil + IF + OF; (T6) soil + IF + BF; (T7) soil + OF + BF; (T8) soil + IF + OF + BF each replicated five times. Plant height, stem diameter, dry weight of shoots and roots, leaf area and chlorophyll index were measured six months after planting. Soil pH (H<sub>2</sub>O) and available soil P content were measured as soil parameters. The best growth performances (54.30 cm, 6.48 mm, 7.10 and 5.92 g·plant<sup>–1</sup>, 435.33 cm<sup>2</sup> and 58 for plant height, stem diameter, shoot and root dry weight, leaf area and chlorophyll index, respectively) were recorded in T8, which also resulted in the highest available P content (18.96 mg·kg–1 soil). The lowest soil pH (H<sub>2</sub>O) value (6.02) was recorded in T7 followed by T6 (6.17). The application of IF, OF and BF as a combination could be recommended to promote the growth of Aquilaria seedlings.

scholarly journals Effect of Plant Media Composition and POC Doses of Rabbit Urine on Growth and Yield of Melon (Cucumis melo L.) Plants

2019 ◽  
Vol 6 (3) ◽  
pp. 412-423
Author(s):  
Gita Ayu Lestari ◽  
Sumarsono ◽  
Eny uskhah Fuskhah
Keyword(s):  
Plant Height ◽  
Economic Value ◽  
Dry Weight ◽  
Fruit Weight ◽  
Growth And Yield ◽  
Media Composition ◽  
Fresh Weight ◽  
Growing Media ◽  
Root Dry Weight ◽  
Fruit Diameter

Melon has a high economic value but in its cultivation, this plant requires quite an intensive handling.One effort to increase the production of melon plants is modifying planting media composition andfertilizing. This research aimed to examine the interaction between plant media composition and therabbit urine fertilizer dosage on melon growth and yield. The research was held on April 4 to August4, 2019, at The Agro Fruit Purwosari Greenhouse, Mijen, Semarang and Ecology, and CropProduction Laboratory, Faculty of Animal and Agricultural Sciences, Diponegoro University,Semarang. The study used a completely randomized factorial design 3x5 with 5 replications. The firstfactor was the growing media composition of 100% husk charcoal (M1), 75% husk charcoal + 25%soil (M2), 50% husk charcoal + 50% soil (M3). The second factor was rabbit urine fertilizer dosageof 55 ml/plant (P1), 82,5 ml/plant (P2), 110 ml/plant (P3), 137,5 ml/plant (P4), 165 ml/plant (P5).Data were analyzed by variance and proceeded with the DMRT test. The observed variables wereplant height, amount of leaves, harvest age, fruit weight, fruit diameter, fruit sweetness level, crown,and root fresh weight, crown and root dry weight. The results of the study showed that the interactionof the growing media composition and rabbit urine fertilizer dosage was significant (P<0.05) on theparameters of plant height, amount of leaves, and fruit sweetness level. The treatment of (M2)obtained the highest result on the parameters of plant height, amount of leaves, and fruit sweetnesslevel but had not been shown on the parameters of harvest age, fruit weight, fruit diameter, crownand root fresh weight, crown, and root dry weight.

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