Fluid Drilling of Vegetable Seeds

Gray, D.

doi:10.1002/9781118060766.ch1

Cited by 7 publications

(3 citation statements)

References 36 publications

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“…Fluid drilling: The procedure of fluid drilling or gel seeding consists of germinating seeds in aerated water until redicle emergence. The seeds are then mixed in a viscous gel and sown with an appropriate drill (Gray, 1981). The gel facilitates sowing seeds without injury to the emerged redicle and maintains seed moisture.…”

Section: Successful Of Seed Treatmentmentioning

confidence: 99%

Seed treatments for sustainable agriculture-A review

Sharma

Singh²,

Sharma³

et al. 2015

JANS

170

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Abstract:Seed treatment refers to the application of certain agents physical, chemical or biological to the seed prior to sowing in order to suppress, control or repel pathogens, insects and other pests that attack seeds, seedlings or plants and it ranges from a basic dressing to coating and pelleting. Introduction and ban of arsenic (used from 1740 until 1808) is the key milestones in the history of modern seed treatment till then a continuous research and advancement in this technology is going on. The technological advancement prepared a roadmap for refining existing seed treatment technologies and future work on technologies like fluid drilling as a way to sow germinated seeds where gel can also serve as a delivery system for other materials, seed priming advances the early phase of germination without redicle emergence. Another advanced technology, solid matrix priming (SMP) has been evaluated as a means to advances the germination of seeds and serve as a carrier for useful material too. Physical and biological seed treatments alone an alternative to chemicals or in combination with a chemical treatment are being used worldwide because of their environmental safety and socioeconomic aspects. Biological seed treatments are expected to be one of the fastest growing seed treatment sectors in the near future, in part because they are easier to register at Environment Protection Agency (EPA). Lack of awareness to seed treatments at farmer's level is one of the limiting factors in disease management and hence, efforts should be made at farmer's level to adopt the technology. Keeping the all above facts in mind, selected seed treatment technologies with their improvement and significance will be discussed in this review.

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Section: Successful Of Seed Treatmentmentioning

confidence: 99%

Seed treatments for sustainable agriculture-A review

Sharma

Singh²,

Sharma³

et al. 2015

JANS

170

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“…SAP could be degraded through physical or chemical processes (Mikkelsen, 1994). Hence, increasing number of SAP commercial products have been developed to raise water use efficiency, alleviate drought stress, improve soil physical properties and increase crop yield (Terry, Richard & Nelson, 1986; Mikkelsen, 1994; Gray, 2011). Hydrogel supply enhanced soil moisture and seed germination rate (Rehman, Ahmad & Safdar, 2011).…”

Section: Introductionmentioning

confidence: 99%

Amelioration of drought effects in wheat and cucumber by the combined application of super absorbent polymer and potential biofertilizer

Shi

Zhang

et al. 2019

PeerJ

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Biofertilizer is a good substitute for chemical fertilizer in sustainable agriculture, but its effects are often hindered by drought stress. Super absorbent polymer (SAP), showing good capacity of water absorption and retention, can increase soil moisture. However, limited information is available about the efficiency of biofertilizer amended with SAP. This study was conducted to investigate the effects of synergistic application of SAP and biofertilizers (Paenibacillus beijingensis BJ-18 and Bacillus sp. L-56) on plant growth, including wheat and cucumber. Potted soil was treated with different fertilizer combinations (SAP, BJ-18 biofertilizer, L-56 biofertilizer, BJ-18 + SAP, L-56 + SAP), and pot experiment was carried out to explore its effects on viability of inoculants, seed germination rate, plant physiological and biochemical parameters, and expression pattern of stress-related genes under drought condition. At day 29 after sowing, the highest viability of strain P. beijingensis BJ-18 (264 copies ng−1 gDNA) was observed in BJ-18 + SAP treatment group of wheat rhizosphere soil, while that of strain Bacillus sp. L-56 (331 copies ng−1 gDNA) was observed in the L-56 + SAP treatment group of cucumber rhizosphere soil. In addition, both biofertilizers amended with SAP could promote germination rate of seeds (wheat and cucumber), plant growth, soil fertility (urease, sucrose, and dehydrogenase activities). Quantitative real-time PCR analysis showed that biofertilizer + SAP significantly down-regulated the expression levels of genes involved in ROS scavenging (TaCAT, CsCAT, TaAPX, and CsAPX2), ethylene biosynthesis (TaACO2, CsACO1, and CsACS1), stress response (TaDHN3, TaLEA, and CsLEA11), salicylic acid (TaPR1-1a and CsPR1-1a), and transcription activation (TaNAC2D and CsNAC35) in plants under drought stress. These results suggest that SAP addition in biofertilizer is a good tactic for enhancing the efficiency of biofertilizer, which is beneficial for plants in response to drought stress. To the best of our knowledge, this is the first report about the effect of synergistic use of biofertilizer and SAP on plant growth under drought stress.

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“…To overcome this problem, a pre-germination technique that involves seed hydration up to the point of radicle protrusion could be practiced. The pre-germination method results in rapid and uniform seed germination by means of avoiding unpredictable environmental conditions on germination by advancing seedling emergence (Gray, 1981). Sowing of pre-germinated seeds selected based on the length of the emerged radicle can be practiced to get optimum field stand during seed production.…”

Section: Introductionmentioning

confidence: 99%

Effect of Pre-germination Technique on Enhancing Seed and Seedling Vigour in Ridge gourd (LuffaacutanglaRoxb.)

Abinaya¹,

Sundareswaran²,

Raja³

2020

Madras Agricultural Journal

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Sowing pre-germinated seeds has proved to be an effective technique to obtain early emergence, optimum field stand and high germination percentage. Before sowing, the pre-germination method could be used to separate dead seed and as dead low vigor seeds to get high vigor seeds, which can be taken for sowing. With this notion, an experiment was conducted with ridge gourd seed var. PKM 1 with two factors, one as soaking duration (6, 9, 12, 16, 20, and 24 h) and other as the incubation periods (1, 2, 3 and 4 days). Seeds were soaked in distilled water for the above-mentioned different durations in a 1:1 ratio on a volume basis. After a specified period of soaking, the seeds were placed in between the moist gunny bags and kept for incubation under dark conditions. Data were collected for different parameters viz., sprouting percentage, germination percentage, root length, shoot length, dry matter production and vigor index I & II and analyzed. Results obtained from the study showed that there is a significant difference between the treatments and seeds soaked in water for 20h with one-day incubation recorded the highest values in all the parameters. The seeds that were incubated without soaking performed similar to that of absolute control because of the presence of hard seed coat. Whereas, seeds that were soaked but not incubated had performed better than dry seed and only incubated seeds. This might be because, soaking seeds in water stimulates the pre-germinative metabolism, activates enzymes earlier and also releases the physical dormancy of ridge gourd seeds which makes the seed to germinate easier and faster. Hence, the study concluded that this technique might be considered as farmer's friendly method that can be used to separate live seed in a seed lot, which will be useful for producing healthy seedlings, maintaining optimum plant population and uniformity in seedling emergence of ridge gourd.

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Fluid Drilling of Vegetable Seeds

Cited by 7 publications

References 36 publications

Seed treatments for sustainable agriculture-A review

Seed treatments for sustainable agriculture-A review

Amelioration of drought effects in wheat and cucumber by the combined application of super absorbent polymer and potential biofertilizer

Effect of Pre-germination Technique on Enhancing Seed and Seedling Vigour in Ridge gourd (LuffaacutanglaRoxb.)

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