scholarly journals Studies on solid matrix priming of seeds in bitter gourd (Momordica charantia L.)

2017 ◽  
Vol 9 (1) ◽  
pp. 395-401
Author(s):  
Rajesh Kanwar ◽  
D. K. Mehta
Keyword(s):  
Seedling Emergence ◽  
Seed Priming ◽  
Momordica Charantia ◽  
Fruit Yield ◽  
Growth And Yield ◽  
Bitter Gourd ◽  
Solid Matrix ◽  
Total Field ◽  
Seed Soaking ◽  
Field Emergence

A study was carried out to evaluate the effect of solid matrix priming of seeds on emergence (%), growth and fruit yield characters of bitter gourd (Momordica charantia L.) cultivar ‘Solan Hara’. The Experiment comprised of two vigour groups of seeds viz., ‘V1’ (High vigour seeds) and ‘V2’ (72 hours accelerated aged seeds/low vigour seeds) and five seed priming treatments viz., ‘P1’ (Solid matrix priming with Cocopeat), ‘P2’ (Solid matrix priming with Perlite), ‘P3’ (Solid matrix priming with Vermiculite), ‘P4’ (Seed soaking in water), ‘P5’ (Control -Without treatment).Investigation proved that low vigour seeds were inferior in respect of high vigour seeds in terms of seed physiological quality, emergence, growth and yield characteristics. Seed priming with Perlite for 72 hours proved its potential over other priming treatments, seed soaking and control (non-primed seeds) in both high vigour and low vigour seeds for agronomic attributes under study. High vigour seeds primed with Perlite ‘V1P2’ was found to be the best treatment for most of the traits understudy recording highest total field emergence (76.60%), fruit yield per plot (16.12 Kg) and per hectare (250.35 q). Similarly, Low vigour seeds primed with Perlite also recorded enhanced and improved total field emergence (73.83%) fruit yield per plot (9.28 Kg) and per hectare (143.26 q) compared to other low vigour treated and non treated seeds. From the present investigation it was inferred that that the extent of improvement w.r.t. attributes studied was more in low vigour seeds (V2) and seed priming with solid matrix carrier ‘Perlite’ can be used as a beneficial pre-sowing treatment to enhance the seedling emergence, growth and yield characteristics in bitter gourd.

scholarly journals Emergence of Spring- and Summer-planted Onions following Osmotic Priming

HortScience ◽  
1992 ◽  
Vol 27 (5) ◽  
pp. 409-410 ◽  
Author(s):  
Glen A. Murray ◽  
Jerry B. Swensen ◽  
Gary Beaver
Keyword(s):  
Laboratory Experiments ◽  
Field Experiments ◽  
Seedling Emergence ◽  
Seed Priming ◽  
Cultivar Differences ◽  
Controlled Environment ◽  
Poor Predictor ◽  
Soil Temperatures ◽  
Field Emergence ◽  
Laboratory Emergence

The effect of osmotic priming on onion (Allium cepa L.) seedling emergence was evaluated in the field and in a controlled environment at 15C. Seeds of onion cultivars Bronze Wonder, Challenger, Big Mac, and White Keeper were primed in a solution of 300 g polyethylene glycol 8000/liter for 7 days at 10C 1 to 2 weeks before being planted in Spring 1986 and Summer 1987. Time to 50% of maximum emergence (T) for seedlings from primed seeds averaged 10% to 12% less than for unprimed seeds in both seasons and in laboratory experiments. Maximum emergence was improved 7% by priming in one spring field experiment but not in the summer field experiments or in the laboratory. Differences in T among cultivars in the 1986 experiments were small and significant only in one laboratory experiment. In 1987, cultivar differences in T were significant but not consistent in all experiments. Cultivar T means from laboratory experiments were significantly (P = 0.05) correlated with those for field emergence in three of four experiments, but coefficients were low (r = 0.37 to r = 0.45). Values for maximum emergence in the laboratory were not correlated with maximum emergence in the field. Laboratory emergence tests at 15C were a poor predictor of field emergence. Seed priming may benefit establishment of spring-seeded onions emerging at soil temperatures ≤ 15C more than summer-seeded onions emerging in soils >24C.

Effect of Planting Density on the Growth and Yield in Staking Cultivation of Bitter Gourd (Momordica charantia L.) under Non-heated Greenhouse

2015 ◽  
Vol 24 (3) ◽  
pp. 173-177
Author(s):  
Ki-cheol Seong ◽  
기철 성 ◽  
Chun Hwan Kim ◽  
Seung Hwan Wei ◽  
Chan Gyu Lim ◽  
...  
Keyword(s):  
Momordica Charantia ◽  
Growth And Yield ◽  
Bitter Gourd ◽  
Planting Density

Growth and yield maintenance in bread wheat by seed priming under late-sown conditions

2003 ◽  
Vol 51 (4) ◽  
pp. 445-453 ◽  
Author(s):  
S. Kant ◽  
P. Verma ◽  
S. S. Pahuja
Keyword(s):  
Growth Regulator ◽  
Seedling Emergence ◽  
Seed Priming ◽  
Growth And Yield ◽  
Yield Reduction ◽  
Optimum Time ◽  
Wheat Varieties ◽  
Tropical Regions ◽  
Sprouted Seeds ◽  
Rapid Emergence

In the sub-tropical regions of India, the 1st to 3rd week of November is the optimum time for sowing wheat. A delay in sowing due to various factors causes a substantial yield reduction. Seeds of four wheat varieties (Sonak, UP 2338, Raj 3765 and PBW 343) were subjected to seed priming treatments involving water, salts, growth regulator and the sowing of sprouted seed under late-sown conditions during the winter seasons of 1998-99 and 1999-2000. The sowing of sprouted seeds resulted in significantly more rapid emergence of seedlings, accompanied by higher grain and straw yields. Seeds primed with IAA, KCl, water, ZnSO4 and Na2SO4 followed in this order. The lowest seedling emergence and grain yield were obtained for unprimed seeds. Seedling emergence was higher in the variety Sonak, while Raj 3765 and UP 2338 had higher leaf water, osmotic and turgor potentials during the 1998-99 season. The variety PBW 343 produced significantly higher grain and straw yields in the 1999-2000 season.

scholarly journals Influence of Seed Vigor and Preplant Herbicides on Emergence, Growth, and Yield of Tomato

HortScience ◽  
1990 ◽  
Vol 25 (3) ◽  
pp. 288-291 ◽  
Author(s):  
Cosme A. Argerich ◽  
Kent J. Bradford ◽  
Floyd M. Ashton
Keyword(s):  
Growth Rate ◽  
Relative Growth Rate ◽  
Seedling Emergence ◽  
Seed Vigor ◽  
Fruit Yield ◽  
Growth And Yield ◽  
Water Control ◽  
Relative Growth ◽  
Fruit Maturity ◽  
Aged Seeds

The interactions of seed vigor with herbicides were studied with respect to seedling emergence, growth, and fruit yield of processing tomatoes (Lycopersicon esculentum Mill. cv. UC204C). Seed vigor (speed of germination) was enhanced by priming in an aerated solution of 0.12 m K2HP O4 plus 0.15 m KN O3 at 20C for 5 days followed by drying in forced air at 30C. The vigor of a second subsample of the same seed lot was reduced by controlled deterioration at 13% water content (dry-weight basis) for 6 days at 50C (aged seeds). Primed, aged, and untreated seeds were tested for their sensitivity to napropamide and metribuzin herbicides in greenhouse and field studies. A seed vigor × herbicide interaction was detected only under greenhouse conditions, where aged seeds were more sensitive than primed or untreated seeds to metribuzin. In April and May field plantings, seed vigor influenced the rate and percentage of final emergence and the earliness of fruit maturity, but had no effect on relative growth rate or total vegetative or reproductive yield. Napropamide at 4.5 and 9 kg·ha-1 and metribuzin at 0.4 and 0.8 kg·ha-1 had no effect on the rate or percentage of seedling emergence, relative growth rate, or total fruit yield. Metribuzin increased the mortality of seedlings at either application rate, and at 0.8 kg·ha-1 delayed early growth and fruit maturity in the April planting. Napropamide treatments did not differ from the water control for all characteristics and environments studied. Chemical names used: 4-amino-6-tert-butyl-3(methylthio)-1,2,4-triazin-5(4H)-one (metribuzin); 2-(α-napthoxy)-N,N-diethyl propionamide (napropamide).

scholarly journals Effect of parsley seed treatment on root yield

2011 ◽  
Vol 49 (No. 5) ◽  
pp. 213-217 ◽  
Author(s):  
S. Podlaski ◽  
Z. Chrobak ◽  
Z. Wyszkowska
Keyword(s):  
Field Study ◽  
Seed Treatment ◽  
Seedling Emergence ◽  
Seed Priming ◽  
Solid Matrix ◽  
Root Yield ◽  
Seed Vigour ◽  
Pre Treatment ◽  
Priming Technique

As parsley seed vigour is known to be low, a 3-year field study was conducted to examine the effectiveness of seed priming and pelleting. Hardening and solid matrix priming (SMP) were applied to two varieties (Cukrowa and Berlińska). Both methods of seed pre-sowing treatment increased the percentage, speed and synchrony of seedling emergence. Due to seed pre-treatment the original root yield of cv. Cukrowa increased by 6.45 to 7.09 t/ha and that of cv. Berlińska by 2.44 to 5.48 t/ha, depending on the priming technique. Pelleting of primed seeds negatively affected seed vigour as compared to the primed non-pelleted seeds.

Enhancing the germination of three fodder shrubs (Atriplex amnicola, A. nummularia, A. undulata; Chenopodiaceae): implications for the optimisation of field establishment

2006 ◽  
Vol 57 (12) ◽  
pp. 1279 ◽  
Author(s):  
J. C. Stevens ◽  
E. G. Barrett-Lennard ◽  
K. W. Dixon
Keyword(s):  
Salicylic Acid ◽  
Seed Germination ◽  
Gibberellic Acid ◽  
Seedling Emergence ◽  
Seed Priming ◽  
Germination Percentage ◽  
Controlled Conditions ◽  
Field Emergence ◽  
Signalling Compounds ◽  
Germination Requirements

Saltbush (Atriplex) species are widely grown in Australia as saltland pastures. Direct seeding practices for saltbush currently result in asynchronous and unreliable seedling establishment (5% successful establishment is not uncommon from field-sown seed). In part this may stem from a limited understanding of Atriplex seed germination requirements. This paper presents findings with 3 Atriplex species, A. amnicola (Paul G. Wilson.), A. nummularia (Lindl.), and A. undulata (D. Dietr), each of which differs in germination characteristics. For A. amnicola, the presence of light (and artificial substitution of light by 1000 ppm gibberellic acid) improved germination under controlled conditions and resulted in a 4-fold increase (70% total emergence) in field emergence of seedlings. For A. undulata, removing bracteoles increased germination under controlled conditions (~15%), with a 1.5-fold improvement in field seedling emergence (55% final emergence); however, seed priming or gibberellic acid application had no significant effect. In contrast, for A. nummularia, bracteole removal and light had minor positive effects on germination under controlled conditions, but this did not translate into improved emergence in soil or in the field. Under –0.5 MPa NaCl stress, application of gibberellic acid, salicylic acid, or kinetin to the germination medium significantly increased the final germination percentage of A. amnicola seeds (58, 16, and 14%, respectively) and improved the rate at which seeds germinated. All plant signalling compounds significantly increased final germination percentage and germination rate of A. undulata, albeit with a <10% increase at –0.5 MPa NaCl. Priming seeds with plant signalling compounds had similar effects on seed germination under low water potentials compared to direct treatment of the germination media. The effects of seed priming on Atriplex seedling emergence from saline soils varied among species. Priming with water significantly increased emergence percentage of A. amnicola but had no effect on A. nummularia and A. undulata. Gibberellic acid improved A. amnicola germination parameters only, whereas salicylic acid and kinetin improved the rate of emergence in all 3 species at various levels of salinity. This study suggests that a basic understanding of seed dormancy and germination requirements has the potential to substantially improve field emergence of saltbush species.

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