Effect of Different Pre Sowing Treatments on Seed Germination and  Seedling Growth of Walnut (Juglans  regia L.)

Negi, P. S.; Nautiyal, B. P.; Thakur, N. S.; Negi, Manju; Kumari, Vinita; na, Mee

doi:10.20546/ijcmas.2017.607.396

“…However, this result slightly varied with the report of Souza and Fagundes (2014) on Copaitera langsdorffi, which observed that while large seed had higher percentage germination and vigorous seedlings, small seed emerged faster. The obtained result is also comparable with reports from other workers on early emergence of 13 days on African walnut who used a combination of cracking with GA3 (Gibberellic acid) by 750 ppm stratification for 30 days (Negi et al, 2017). Further, the result of this study showed that small seed had the least performance in both number of days to emergence of 19 days and germination rate in all media combination.…”

Section: Discussionsupporting

confidence: 90%

Effects of seed size and nursery media on the germination and seedling growth of Plukenetia conophora

Onwubiko,

Enwereji

2023

ipas

0

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Research on the effects of seed size, soil-based and soilless media to determine the best condition for increased seedling production of African walnut was carried out at the green house of Department of Crop Science and Technology, Federal University of Technology, Owerri. Seed size was categorized into 10.23 to 10.31g (for large seeds) and below 10.23g (for small seeds). Soil-based nursery medium was sawdust mixed with topsoil volume by volume (v/v) 1:1, while soilless was sawdust alone. The experiment was a 2×3 factorial in a complete randomized design with 6 replications. Data were collected on number of days to emergence, plant height at 4, 8, and 12 weeks after planting (WAP), and number of leaves at 4, 8, and 12 WAP. Data collected were tested with analysis of variance (ANOVA), and treatment means were separated with Fishers least significant difference at 5% level of probability. Result showed that large seeds planted on soil-based media performed best in all the assessed traits. The inference is that high quality seedlings of African walnut can be produced by planting large seeds in soil-based media.

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“…This might be due to the fact that, the ability of hot water to separate the columnar macro-sclereid cells through thermal expansion (Teketay, 1998) was ineffective in permitting water to penetrate the seeds. Our experiment was however in contrast with Negi et al (2017) where they reported early germination at 12.67 days and best germination of 75.88% when GA3 was used as presowing treatment. This might be due to the fact that seedlings varieties used in their research trial were of better quality and due to the availability of optimum temperature and humidity.…”

Section: Discussioncontrasting

confidence: 83%

Effect of Different Pre-Sowing Treatments on Germination of Persian Walnut (Juglans Regia L.) in Rukum (East) District, Nepal

Lamichhane

¹

,

Thapa

²

,

Thapa

³

et al. 2021

Turkish JAF Sci.Tech.

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A field-based experiment was carried out in Rukum (East), Nepal, from February to June 2020, to assess the effect of different pre-sowing treatments on germination of Persian walnut. The experiment was carried out in a randomized complete block design with six treatments and four replications. The treatments included hot water treatment, chilling stratification only, cracking + Gibberellic acid (500ppm) followed by chilling stratification, cracking + Gibberellic acid (750ppm) followed by chilling stratification, Gibberellic acid (500ppm) + chilling stratification and Gibberellic acid (750ppm) + chilling stratification. The minimum days for germination (15.75 days) and highest germination (53.25%) were obtained when the combination of cracking with GA3 @ 750 ppm along with chilling stratification was done. The maximum shoot length (34.83 cm) was observed in the combination of cracking with GA3 @ 500 ppm followed by stratification but statistically similar shoot length (34.63 cm) was observed when cracking, application of GA3 @ 750 ppm followed by stratification was done. Cracking, treatment with GA3 @ 500 ppm followed by chilling stratification resulted in the highest shoot fresh weight (11.93 gm) and root fresh weight (10.77 gm) compared to the other treatments used. Thus, cracking along with treatment by GA3 @ 750 ppm followed by chilling stratification could be suggested to the walnut growers for better germination and a better morphological and physiological status of the rootstocks/seedlings.

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“…This is also in agreement with Ren and Tao (2004). Our experiment was however in contrast with Negi et al (2017) where they reported early germination at 12.67 days and best germination of 75.88% when GA3 was used as presowing treatment. This might be due to the fact that seedlings varieties used in their research trial were of better quality and due to the availability of optimum temperature and humidity.…”

Section: Discussioncontrasting

confidence: 83%

EFFECT OF DIFFERENT PRE-SOWING TREATMENTS ON GERMINATION OF PERSIAN WALNUT (Juglans Regia L.) IN RUKUM (EAST) DISTRICT, NEPAL

Lamichhane¹,

Thapa²,

Thapa³

et al. 2020

Trop.cal.Agr

0

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A field-based experiment was carried out in Rukum (East), Nepal, from February to June 2020, to assess the effect of different pre-sowing treatments on germination of Persian walnut. The experiment was carried out in a randomized complete block design with six treatments and four replications. The treatments included hot water treatment, chilling stratification only, cracking + Gibberellic acid (500ppm) followed by chilling stratification, cracking + Gibberellic acid (750ppm) followed by chilling stratification, Gibberellic acid (500ppm) + chilling stratification and Gibberellic acid (750ppm) + chilling stratification. The minimum days for germination (15.75 days) and highest germination (53.25%) were obtained when the combination of cracking with GA3 @ 750 ppm along with chilling stratification was done. The maximum shoot length (34.83 cm) was observed in the combination of cracking with GA3 @ 500 ppm followed by stratification but statistically similar shoot length (34.63 cm) was observed when cracking, application of GA3 @ 750 ppm followed by stratification was done. Cracking, treatment with GA3 @ 500 ppm followed by chilling stratification resulted in the highest shoot fresh weight (11.93 gm) and root fresh weight (10.77 gm) compared to the other treatments used. Thus, cracking along with treatment by GA3 @ 750 ppm followed by chilling stratification could be suggested to the walnut growers for better germination and a better morphological and physiological status of the rootstocks/seedlings.

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Effect of Different Pre Sowing Treatments on Seed Germination and Seedling Growth of Walnut (Juglans regia L.)

Cited by 5 publications

References 13 publications

Effects of seed size and nursery media on the germination and seedling growth of Plukenetia conophora

Effects of seed size and nursery media on the germination and seedling growth of Plukenetia conophora

Effect of Different Pre-Sowing Treatments on Germination of Persian Walnut (Juglans Regia L.) in Rukum (East) District, Nepal

EFFECT OF DIFFERENT PRE-SOWING TREATMENTS ON GERMINATION OF PERSIAN WALNUT (Juglans Regia L.) IN RUKUM (EAST) DISTRICT, NEPAL

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