PRODUÇÃO DE MUDAS DE Physocalymma scaberrimum EM SUBSTRATOS COMPOSTOS POR DIFERENTES PORCENTAGENS DE RESÍDUO ORGÂNICO DE AÇAÍ

Physocalymma scaberrimum Pohl é uma espécie nativa que ocorre principalmente no Norte e Centro-Oeste do Brasil, com potencial madeireiro, para arborização urbana e para recomposição de vegetação em áreas degradadas. Considerando a necessidade de conhecimento do seu comportamento em viveiro e da utilização de resíduos agroflorestais como componente de substrato, este estudo teve por objetivo avaliar o crescimento de mudas dessa espécie em substratos compostos por porcentagens de resíduo de açaí (0%, 25%, 50%, 75%, 100%) misturado à terra de mata. O experimento ocorreu em delineamento inteiramente casualizado, com 5 tratamentos (substratos) e 20 repetições. Foi avaliado o crescimento das mudas através da altura, diâmetro do colo, massa seca da parte aérea e radicular e total, e Índice de Qualidade de Dickson (IQD). Houve ajuste de regressão linear e correlação positiva entre altura, diâmetro do colo e massa seca total com as porcentagens de resíduo de açaí. O substrato constituído por 100% do resíduo de açaí proporcionou o maior crescimento das mudas: 32,9 cm de altura, 2,98 mm de diâmetro do colo, 2,003 g de massa seca total e maior IQD (0,1142). Para a utilização com terra de mata, a composição entre 25% e 75% de resíduo também se mostrou possível.Palavras-chave: Resíduos agroflorestais; produção de mudas; espécies florestais nativas; silvicultura. AbstractPhysocalymma scaberrimum seedlings production in substrate composed by different percentages of organic residue of açaí. Physocalymma scaberrimum Pohl is a native species that occurs mainly in the North and Midwest regions of Brazil, with potential for wood production, urban forestry and restoration of vegetation in degraded areas. Considering the need for better understanding of the seedlings behavior in the nursery, and use of agroforestry residue as components of substrate, this study aimed to evaluate the growth of this species in substrates composed by different percentages of açaí residue (0%, 25%, 50%, 75%, 100%) mixed with forest soil. The experiment was set up according to the completely randomized design, with 5 treatments (substrates) and 20 replicates. It was evaluated the growth of seedlings through shoot height, collar diameter, dry weights of shoot and roots and total, and Dickson Quality Index (IQD). A fit linear regression and positive correlation was found out between height, collar diameter and dry weight total dry mass with increasing percentages of açaí residue. The substrate composed by 100% of açaí residue provided the highest mean growth of seedlings: height (32.9 cm seedling-1), collar diameter (2.98 mm seedling-1), total dry mass (2.003 g seedling-1), and highest IQD (0.1142). To use with soil, the composition between 25% and 75% of residue also showed possibility.Keywords:agroforestry residues; seedlings production; native forest species; silviculture.

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Influence of substrate compaction in nursery containers on the growth of Scots pine (Pinus sylvestris L.) seedlings

Forest Research Papers ◽

10.2478/frp-2013-0029 ◽

2013 ◽

Vol 74 (4) ◽

pp. 307-314 ◽

Cited By ~ 2

Author(s):

Mariusz Kormanek ◽

Jacek Banach ◽

Michał Ryba

Keyword(s):

Pinus Sylvestris ◽

Growth Parameters ◽

Dry Weight ◽

Dry Mass ◽

Shoot Dry Weight ◽

Pine Seedlings ◽

Collar Diameter ◽

Influence Of Substrate ◽

Nursery Field ◽

Growth Of Seedlings

Abstract The paper presents research on influence of nursery soil compaction, composed of peat (90%) and perlite (10%), on the growth of seedlings of Pinus sylvestris grown in containers. Polyethylene nursery are containers used for the seedling production. These containers were filled with three different densities of the peat and perlite substrate (0.3, 0.5 and 0.7 g·cm-3). During the experiment, nursery containers were initially placed in a plastic tent for a period of two months, and then for three months further months in an open nursery field. Growth measurements for individual plants were the length of shoots and the root system, root collar diameter, root and shoot dry weight and photosynthetic rate. There was a relationship between the extent of compaction of the soil substrate and all analyzed growth parameters of seedlings. A more compact substrate adversely affected on the number of grown seedlings and their length but positively influenced the dry mass of pine seedlings.

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Growth of Copaifera Langsdorffii seedlings in different conditions on the substrate

Scientific Electronic Archives ◽

10.36560/131120201136 ◽

2020 ◽

Vol 13 (11) ◽

pp. 20

Author(s):

T. Woiciechowski ◽

M. F. S. Pinheiro ◽

L. J. B. Silvino

Keyword(s):

Controlled Release ◽

Dry Weight ◽

Dry Mass ◽

Native Forest ◽

Scale Production ◽

Shoot Height ◽

Shoot Dry Weight ◽

Copaifera Langsdorffii ◽

Neck Diameter ◽

Quality Indexes

The demand for seedlings of native forest species for reforestation helps in favor of the need for scale production, since technical techniques for producing native seedlings with quality are incipient, especially when it comes to silvicultural methods such as irrigation, fertilization and substrate preparation. The objective of the work was to evaluate the development of Copaifera langsdorffii Desf. seedlings, under different conditions in the substrate. The treatments were: control, commercial substrate; adding hydrogel to the substrate; use of controlled release fertilization; and addition of hydrogel and use of controlled release fertilization. After 150 days after sowing, the biometric characteristics of shoot height, neck diameter, root length, shoot dry weight, root and total, and quality indexes were measured. Individually, controlled fertilization provided greater height of the aerial part, diameter of the neck and quality indexes, however it was similar to the control in some cases. The addition of hydrogel together with controlled fertilization increased the total dry mass of the seedlings. In general, the addition of hydrogel to the commercial substrate showed unsatisfactory results in the development of Copaíba seedlings.

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Azospirillum brasilense INOCULATION ON SEED GERMINATION AND INITIAL GROWTH OF SEEDLINGS OF NATIVE FOREST SPECIES

FLORESTA ◽

10.5380/rf.v51i4.73520 ◽

2021 ◽

Vol 51 (4) ◽

pp. 855

Author(s):

Francival Cardoso Felix ◽

Daniele Cristina Pereira de Matos ◽

Leandro Porto Latoh ◽

Renata De Almeida Maggioni ◽

Antônio Carlos Nogueira

Keyword(s):

Seed Germination ◽

Azospirillum Brasilense ◽

Dry Weight ◽

Native Forest ◽

Initial Growth ◽

Forest Species ◽

Collar Diameter ◽

Concentrated Solution ◽

Germination And Growth ◽

Growth Of Seedlings

Inoculation of rhizobacteria in seeds and plants has been documented as a stimulant and promoter of germination and growth of agricultural crops, but there is little information on native forest species. Therefore, the present study aims to evaluate the potential of Azospirillum brasilense inoculation in the germination of seeds and initial growth of seedlings of native forest species. The following experiments were carried out: (I) germination of seeds in germination chamber, and (II) initial growth of seedlings in nursery, both with four forest species (Cassia leptophylla, Lafoensia pacari, Mimosa flocculosa and Schinus terebinthifolius). For the four species, in both experiments, two treatments were used: inoculation of seeds with concentrated solution of A. brasilense and no inoculation of seeds (control). Physiological aspects of seed germination and seedling vigor were evaluated in the first experiment (germination speed, and length and dry weight of seedlings), and seedling growth was evaluated in the second experiment (height, collar diameter and dry weight of seedlings). Inoculation of A. brasilense in seeds of C. leptophylla, L. pacari, M. flocculosa and S. terebinthifolius did not promote beneficial or promising results for seed germination and initial growth of seedlings, so its use to produce seedlings of these species is not recommended.

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Açai seedling production: effect of substrates and seeds size on germination and growth of seedlings

JOURNAL OF ADVANCES IN AGRICULTURE ◽

10.24297/jaa.v4i1.4300 ◽

2015 ◽

Vol 4 (1) ◽

pp. 316-323 ◽

Cited By ~ 1

Author(s):

Oscar J. Smiderle ◽

Vanuza Xavier Silva ◽

Edvan Alves Chagas ◽

Aline G. Souza ◽

Maria Isabel Garcia Ribeiro ◽

...

Keyword(s):

Dry Weight ◽

Germination Percentage ◽

Second Step ◽

Initial Growth ◽

Euterpe Oleracea ◽

Shoot Height ◽

Randomized Design ◽

Completely Randomized Design ◽

Forced Air ◽

Growth Of Seedlings

The açaí palm (Euterpe oleracea Mart.) is a tree native to the Amazonia. In some states in the region, growth of the planted area has been observed, but the difficulty in obtaining substrates which are viable for the production of seedlings is high. It was intended in a first step to evaluate the effect of seed size and substrates upon germination and in the second step, to evaluate the initial growth of seedlings of E. oleracea on different substrates. The experimental design was a completely randomized design in 2 x 2 factorial scheme with four replications at 100 seeds. Germination percentage, percentage of abnormal seedlings, shoot and root length and dry weight of the seedlings were evaluated after 70 days. In the second step, completely randomized design in 9 x 6 factorial scheme with five replications with four seedlings/ plot was utilized. At 60, 90 , 120 , 150 , 180 and 210 days after transplanting, shoot height and diameter of the stem of the plant were assessed, number of leaves were determinate at 90, 120 , 150, 180 and 210 dat and at 210 dat, determinations of dry weight of the shoot and root system were conducted. These samples were put in an oven with forced air circulation at 60 ºC for 72 hours. Açaí seeds considered large present greater germination percent as compared with small seeds and the substrate sand provides greater percentage of seed germination. The substrates composed of 75% (soil+sand) + 25% manure and with 75% (soil+sand) + 25% carbonized rice husk present better development of açai seedlings.

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AVOCADO SEEDLINGS MULTIPLE STEMS PRODUCTION

Revista Brasileira de Fruticultura ◽

10.1590/0100-29452016221 ◽

2016 ◽

Vol 38 (2) ◽

Cited By ~ 1

Author(s):

MARCUS VINICIUS SANDOVAL PAIXÃO ◽

JOSÉ CARLOS LOPES ◽

EDILSON ROMAIS SCHMILDT ◽

RODRIGO SOBREIRA ALEXANDRE ◽

CAROLINE MERLO MENEGHELLI

Keyword(s):

Root Length ◽

Dry Weight ◽

Adventitious Rooting ◽

Dry Mass ◽

Stem Diameter ◽

Experimental Unit ◽

Shoot Height ◽

Shoot Dry Weight ◽

Federal Institute ◽

Multiple Stems

ABSTRACT This study aimed to evaluate the potential of multi-stems in avocado seeds according to their mass as well as the adventitious rooting of multi-stem budding with or without the use of auxin. The research was carried out at the Vegetation House of Federal Institute of Espírito Santo, Campus Santa Teresa -ES, with seeds of different masses: <60 g, 61 to 80 g, 81 to 100 g and >100 g, in which each experimental unit was made of five seeds, distributed within five repetitions, under a completely randomized design. The seeds were put to germinate and the percentage number of emergence and multiple stems were evaluated. After 150 days, the following evaluations were carried out: survival of rooted cuttings; number of leaves; stem diameter; root length; root volume; root and shoot fresh mass; root and shoot dry mass; shoot height; absolute growth and shoot growth rate; shoot dry weight/root dry mass ratio; shoot height/stem diameter ratio; shoot height/root length and Dickson's quality index ratio. Avocado seeds with mass over 100 g and between 81-100 g presented higher percentage of multiple stems. Rods over 20 cm that were not treated with IBA (indole-3-butyric acid) resulted on avocado plants of better quality. The use of IBA (2000 mg L-1) does not affect the rooting and growth of avocado's multi-stem plants.

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Effects of Aluminum and pH on Germination of Echium plantagineum L.

Journal of Agricultural Studies ◽

10.5296/jas.v8i1.16179 ◽

2020 ◽

Vol 8 (1) ◽

pp. 313

Author(s):

Rodrigo Roso ◽

Ubirajara Russi Nunes ◽

Caren Alessandra Müller ◽

Juçara Terezinha Paranhos ◽

Sidinei José Lopes ◽

...

Keyword(s):

Aerial Part ◽

Aluminum Sulfate ◽

Growth Parameters ◽

Primary Root ◽

Dry Mass ◽

The Third ◽

Sulfate Solutions ◽

Randomized Design ◽

Primary Root Length ◽

Growth Of Seedlings

The objetive of this study was to identify the effects of aluminum concentrations and pH levels of solution on germination of Echium plantagineum L. seeds. Three different experiments were carried out in completely randomized design with four repetitions. In the first experiment, we used aluminum sulfate solutions in concentrations of 0.0; 0.3; 0.6; 1.0; 2.0; 3.0; 4.0; 5.0; 6.0 and 7.0 cmolc L-1 and in the second experiment, solutions with different pH, 3.0; 4.0; 5.0; 6.0; 7.0; 8.0; 9.0 and 10.0. In the third experiment, we carried out a factorial (4x4) with aluminum sulfate solutions (0.0; 2.0; 4.0 and 6.0 cmolc L-1) and pH (4.0; 5.0; 6.0 and 7.0). It was evaluated the germination of Echium plantagineum L. at four and 14 days after seeding (DAS), germination speed index, primary root length, aerial part and dry mass of seedlings. The presence of aluminum reduced the germination by 27 and 40% at four and 14 DAS, respectively, in concentrations superior to 3.0 cmolc L-1. The three growth parameters presented linear reduction with the increase of aluminum concentrations. In the second experiment, the solutions with pH of 3.0 and 10.0 provided increases in germination, length of root and aerial part, and little influence in the dry mass of seedlings. In the third experiment, there was significant interaction between the aluminum concentrations and pH levels of substrate. The presence of aluminum in the substrate presented toxic effect on germination of seeds, length of seedlings and dry mass. The pH of the solution has little effect in germination of seeds and in the growth of seedlings of E. plantagineum.

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Trichoderma Contributes to the Germination and Seedling Development of Açaí Palm

Agriculture ◽

10.3390/agriculture10100456 ◽

2020 ◽

Vol 10 (10) ◽

pp. 456

Author(s):

Bruno Fróes Campos ◽

Anselmo Junior Corrêa Araújo ◽

Cristina Aledi Felsemburgh ◽

Thiago Almeida Vieira ◽

Denise Castro Lustosa

Keyword(s):

Dry Mass ◽

Initial Growth ◽

Randomized Design ◽

Trichoderma Isolate ◽

Number Of Leaves ◽

Collar Diameter ◽

Completely Randomized Design ◽

Set Up ◽

Root Size ◽

Trichoderma Isolates

The application of Trichoderma fungus can be used to obtain seedlings of higher quality for plantations. The objective of this study was to evaluate the effects of Trichoderma isolates on the germination and initial growth of açaí seedlings. Two trials were set up. In the laboratory, the seeds were inoculated in suspensions prepared with each of the isolates for 24 h, and they were arranged in trays containing filter paper in a completely randomized design with five replicates containing 50 seeds each. For the control, the seeds were submerged only in water. Part of the seedlings resulting from seeds treated and not treated with Trichoderma were transferred to bags containing forest soil and were submitted to seven modes of application of Trichoderma and kept in a nursery. The speed of germination and hypocotyl were not influenced by the biological treatment. The application of the different Trichoderma isolates positively influenced the height, collar diameter, number of leaves, root size, leaf area and root, and aerial part dry mass of the açaí seedlings. The application of the Trichoderma isolate TAM01 on the preplanting substrate and biweekly applications on the postplanting substrate was the combination that most positively influenced the development of açai seedlings.

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CHARACTERIZATION OF SEEDS, SEEDLINGS AND INITIAL GROWTH OF JACARANDA MIMOSIFOLIA D. DON. (BIGNONIACEAE)

Revista Árvore ◽

10.1590/1806-90882018000400003 ◽

2018 ◽

Vol 42 (4) ◽

Author(s):

Jamille Rabêlo de Oliveira ◽

Clark Alberto Souza da Costa ◽

Antonio Marcos Esmeraldo Bezerra ◽

Haynna Fernandes Abud ◽

Eliseu Marlônio Pereira de Lucena

Keyword(s):

Quality Index ◽

Dry Weight ◽

Initial Growth ◽

Randomized Design ◽

Germination Process ◽

Length Width ◽

Number Of Leaves ◽

Collar Diameter ◽

Jacaranda Mimosifolia

ABSTRACT This research aimed to characterize the biometry of seeds, the morphology of seedlings and to evaluate the initial growth of blue jacaranda trees (Jacaranda mimosifolia D. Don.) in two environments with distinct luminosity. The biometry of 100 de-winged seeds was measured by their length, width and thickness. One hundred seeds were sown into 300 cm3 tubes and seedlings morphology was registered throughout the germination process using digital photographs disposed sequentially according to seedlings age. The initial growth analysis was performed in two environments, full sun and greenhouse, during nine periods, and arranged in a complete randomized design with subplots. The response variables were: number of leaves, plant height, collar diameter, root length, aerial and roots dry weight, and Dickson’s Quality Index (DQI). Biometry results showed seeds 7.09 - 9.26 mm long, 6.74 -9.39 mm wide, and 1.11 -1.89 mm thick. Germination is of hypogealphanerocotylar type, with first root arising six days after sown. Plants at full sun presented larger collar diameters, greater root dry weight and higher DQI as evaluation periods passed by. In conclusion, the biometry of seeds and the morphology of seedlings of blue jacaranda can be used to recognize this species in the field. Plants at full sun presented better development. Seedlings cultivated at full sun can be destined to recuperate forests and degraded areas just 36 weeks after sowed.

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Influência da Casca de Arroz Carbonizada no Desenvolvimento de Mudas de Enterolobium contortisiliquum (VELL.) Morong

UNICIÊNCIAS ◽

10.17921/1415-5141.2018v22n2p76-80 ◽

2018 ◽

Vol 22 (2) ◽

pp. 76

Author(s):

Vinícius Moreira Vaz ◽

Douglas Santos Gonçalves ◽

Priscila Bezerra De Souza

Keyword(s):

Rice Husk ◽

Quality Index ◽

Dry Mass ◽

Native Forest ◽

Seedling Production ◽

University Campus ◽

Forest Nursery ◽

Forest Species ◽

Shoot Height ◽

Dickson Quality Index

Entre as espécies florestais nativas indicadas para a recuperação de áreas degradas está o Enterolobium contortisiliquum (Vell.) Morong, pouco se sabe sobre os processos germinativos e de produção de mudas desta espécie. Diante disso, o presente estudo teve como objetivo avaliar a influência da casca de arroz carbonizada no desenvolvimento de mudas de Enterolobium contortisiliquum. O experimento foi conduzido no Viveiro Florestal da Universidade Federal do Tocantins, campus Universitário de Gurupi – TO, em que foram instalados cinco tratamentos e 20 repetições, com adição de Casca de Arroz Carbonizada (CAC) no substrato comercial Bioflora® (SCB), nas proporções de (T1) 0% CAC + 100% SCB, (T2) 25% CAC + 75% SCB, (T3) 50% CAC + 50% SCB, (T4) 75% CAC + 25% SCB e (T5) 100% CAC. Aos 20, 40 e 60 dias, após a semeadura, foram avaliados os parâmetros altura da parte aérea e diâmetro do coleto. Ao final de 60 dias foram obtidos os parâmetros: peso da massa seca da raiz, peso da massa seca da parte aérea, peso da massa seca total e índice de qualidade de Dickson. O delineamento experimental utilizado foi o inteiramente casualizado (DIC), as médias dos tratamentos foram comparadas através do Software Assistat 7.7 pelo teste Scott e Knott ao nível de 5% de probabilidade. O uso de casca de arroz carbonizada (CAC) influenciou no desenvolvimento de mudas de Enterolobium contortisiliquum (Vell.) Morong. Palavras-chave: Substratos Alternativos. Tamboril. Viveiro Florestal AbstractAmong the native forest species indicated for the recovery of degraded areas is Enterolobium contortisiliquum (Vell.) Morong, little is known about the germination processes and seedling production of this species. Therefore, the present study aimed to evaluate the influence of carbonized rice husk on the development of Enterolobium contortisiliquum seedlings. The experiment was conducted in the Forest Nursery of the Federal University of Tocantins, University campus of Gurupi - TO, five treatments and 20 replicates were installed, with the addition of Carbonized Rice Peel (CAC) in the commercial substratum Bioflora ® (SCB), in proportions (T1) 0% CAC + 100% SCB, (T2) 25% CAC + 75% SCB, (T3) 50% CAC + 50% SCB, (T4) 75% CAC + 25% SCB and (T5) 100% CAC . At 20, 40 and 60 days after sowing, the parameters of shoot height and shoot diameter were evaluated. At the end of 60 days, the following parameters were obtained: root dry mass weight, shoot dry mass weight, total dry mass weight and Dickson quality index. The used experimental design was completely randomized (DIC), the means of the treatments were compared using Software Assistat 7.7 by the Scott and Knott test at the 5% probability level. The use of carbonized rice husk (CAC) influenced the development of Enterolobium contortisiliquum (Vell.) Morong seedlings. Keywords: Alternative Substrates. Monkfish. Forest Nursery

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PENGARUH UMUR PANEN RIMPANG TERHADAP PERUBAHAN FISIOLOGI DAN VIABILITAS BENIH JAHE PUTIH BESAR SELAMA PENYIMPANAN

Jurnal Penelitian Tanaman Industri ◽

10.21082/littri.v21n1.2015.17-24 ◽

2016 ◽

Vol 21 (1) ◽

pp. 17

Author(s):

DEVI RUSMIN ◽

M.R. SUHARTANTO ◽

SATRIYAS ILYAS ◽

DYAH MANOHARA ◽

ENY WIDAJATI

Keyword(s):

Weight Loss ◽

Seed Viability ◽

High Growth ◽

Dry Weight ◽

Zingiber Officinale ◽

Shoot Height ◽

Harvesting Time ◽

Seed Technology ◽

Randomized Design ◽

Growth Ability

ABSTRAK Salah satu faktor yang menentukan daya simpan benih jahe putih besar (JPB) adalah mutu. Mutu benih sangat ditentukan oleh tingkat kemasakan rimpang. Penelitian bertujuan untuk mengetahui pengaruh umur panen terhadap perubahan fisiologi dan viabilitas benih selama penyimpanan. Penelitian dilaksanakan di Rumah Kaca dan Laboratorium Teknologi Benih, Balai Penelitian Tanaman Rempah dan Obat serta Laboratorium Pascapanen IPB Bogor, mulai bulan Juli 2012 sampai dengan Februari 2013. Rancangan yang digunakan adalah acak lengkap (RAL) dengan lima ulangan. Perlakuan yang diuji adalah tiga tingkat umur panen benih 7, 8, dan 9 bulan setelah tanam (BST). Pengamatan dilakukan terhadap perubahan fisiologis (penyusutan bobot, persentase rimpang bertunas, tunas, kadar air, dan laju respirasi), serta viabilitas rimpang benih (daya tumbuh, tinggi, dan bobot kering bibit). Hasil penelitian menunjukkan rimpang benih umur 7 dan 8 BST mempunyai daya simpan terbaik karena menghasilkan masing-masing total angka penyusutan bobot lebih rendah (24,65 dan 25,25%) dan tunas lebih pendek (0,30 dan 1,08 cm) dibandingkan dengan umur panen 9 BST (27,13% dan 1,62 cm), selama 4 bulan disimpan. Masa dormansi rimpang benih JPB mulai pecah setelah mengalami periode simpan 2 bulan. Pertumbuhannya mulai seragam setelah 3 bulan simpan. Umur panen jahe 7 dan 8 BST mempunyai derajat dormansi yang lebih tinggi dibanding 9 BST. Rimpang benih umur panen 7, 8, dan 9 BST mempunyai daya tumbuh tinggi (>95%) dan pertumbuhan bibit seragam setelah 3 bulan disimpan. Kata kunci: Zingiber officinale Rosc., penyimpanan, benih, perubahan fisiologis, viabilitasABSTRACT One of the factors that determine the storability of seed rhizome of white big ginger (WBG) is quality. The quality is determined by the maturity levels of seed rhizome. The aim of the experiment was to observe the effect of harvesting time on physiological changes and seed viability of WBG seed rhizomes during the storage. The experiment was conducted at Green House and Seed Technology Laboratory of Indonesian Spice and Medicinal Crops Research Institute, Bogor and Postharvest Laboratory, IPB, from July 2012 to February 2013. The experiment was arranged in a completely randomized design with five replications. The treatments tested were three levels of WBG seed rhizome harvesting time: 7, 8, and 9 month after planting (MAP). Variables observed were physiological changes of seed rhizomes during the storage (weight loss, sprouting percentage, shoot height, respiration rate, and moisture content) and viability (growth ability, height, and dry weight of the seedling). The results showed that seed rhizomes at 7 and 8 had the best storability, since it was produced each low rate of weight loss (24.65 and 25.25%), and shoots shorter (0.3 and 1.08 cm) than 9 MAP (27.13% and 1.62 cm), for 4 months in storage. Dormancy of WBG seed rhizomes has been broken after 2 months in storage. Harvesting at 7 and 8 showed a degree of dormancy higher than the harvesting age 9 MAP. Harvesting time at 7, 8, and 9 MAP had high growth ability (> 95%) and uniform seedling growth after 3 months in storage. Keywords: Zingiber officinale Rosc., storage, seed, physiological changes, viability

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