Plant Growth Retardants Improve Sink Strength and Yield of Sunflower

Secondo, A.S. Pious; Reddy, Y. A. Nanja

doi:10.20546/ijcmas.2018.710.013

Cited by 5 publications

(4 citation statements)

References 8 publications

(8 reference statements)

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“…It is also concluded that increase in 1000 seed weight by CCC might be due to accelerated translocation of photo assimilate toward seed. Similar results were also obtained by Sontakey et al, (1991) in sesame, Sarkar et al, (2006) in sesame and Secondo and Reddy (2018) in sunflower.…”

Section: Seed Weight (G)supporting

confidence: 89%

Impact of Plant Growth Regulators on Sesame (Sesamum indicum L.) Yield and its Attributes

Bhadauria¹,

Singh²,

Kanabi³

2021

Int.J.Curr.Microbiol.App.Sci

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The experiment was conducted at Agronomy Instructional Farm, S. D. Agricultural University, Sardarkrushinagar during Kharif 2020 to examined the effect of different foliar spray of plant growth regulators viz., GA3 (100 and 200 ppm), NAA (50 and 100 ppm), CCC (500 and 1000 ppm) and SA (500 and 1000 ppm) on seed yield and its related attributes of sesame variety (Gujarat Til 3).The research was laid out in randomized block design, with ten treatments in three replication under rainfed condition. GA3 200 ppm significantly increased seed yield and its attributes of sesame the number of capsule per plant, number of seeds per capsule, biological yield, harvest index and oil content.

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Section: Seed Weight (G)supporting

confidence: 89%

Impact of Plant Growth Regulators on Sesame (Sesamum indicum L.) Yield and its Attributes

Bhadauria¹,

Singh²,

Kanabi³

2021

Int.J.Curr.Microbiol.App.Sci

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“…The potentiality of foxtail millet has not been exploited in India due to mainly growing in rainfed condition, not recommended potash fertilizers and not altered the source-sink relation by using PGRs. Greater proportion of photo-assimilates is diverted for production and maintenance of vegetative plant parts rather than translocation to reproductive parts and hence, the plant puts on more plant height and higher biomass (Secondo and Reddy, 2018). Therefore, any attempts to reduce plant height would be expected to improve the yield by diverting the photo-assimilates to reproductive structures.…”

Section: Introductionmentioning

confidence: 99%

Impact of Foliar Spray of Plant Growth Retardants with Potassium on Growth Traits, Gas Exchange Parameters and Grain Yield in Foxtail Millet (Panicum italicum L.)

Sivakumar¹,

Parasuraman²,

Vijayakumar³

2021

IJARe

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Background: Foxtail millet is one of the nutri-cereal foods for the people of semi arid regions. Proper nutrient management and source-sink alteration are major keys for achieving higher productivity in millets. However, potassium is not recommended to foxtail millet and the potential yield is not exploited. And also the study of source-sink alteration in foxtail millet by using plant growth regulators is meager. Methods: An experiment was conducted to study the impact of plant growth retardants viz., chlormequat chloride (CCC) and mepiquat chloride (MC) with the nutrient potassium (K2SO4 - 1%) on growth, gas exchange parameters and grain yield of foxtail millet under rainfed condition. Plant growth retardants with potassium consortium were used as foliar spray at flower initiation stage under field condition. Standard methods were used to measure the plant height, root length, number of leaves, LAD, CGR and grain yield. The photosynthetic rate, transpiration rate and leaf temperature were measured by using the instrument PPS. Result: Foliar spray of CCC (250 ppm) with 1% K2SO4 showed supremacy to enhance crop growth rate, leaf area duration, photosynthetic rate, transpiration rate and grain yield compared to other treatments. However, lowest plant height (100.7 cm) and number of leaves were observed by CCC (250 ppm) alone. Highest photosynthetic rate (26.84) and transpiration rate (17.94) were registered by CCC + K2SO4. Lowest leaf temperature of 34.1ºC was registered by 1% K2SO4 compared to control (35.6°C). CCC with K2SO4 recorded highest LAD value of 46.1 which is on par with K2SO4 alone (45.9). CCC with K2SO4 registered highest grain yield of 2.13 t ha-1 with increased yield of 18.3% over control. However, highest benefit cost ratio of ratio of 2.75 was recorded by 1% K2SO4 alone.

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“…The tendrils act as a sink and affect the better source-sink relationship. Greater proportion of photo-assimilates is diverted for production and maintenance of vegetative plant parts (tendril in horsegram) rather than translocation to reproductive parts leads to more plant height (Secondo and Reddy, 2018). Based on the above statement, it is clearly indicated that diversion of photosynthates to tendril which is vegetative part of horsegram can reduce the economic yield.…”

Section: Introductionmentioning

confidence: 95%

Impact of Foliar Spray of PGR Nutrient Consortium on Growth, Photosynthesis and Yield of Horsegram (Macrotyloma uniflorum Lam) under Rainfed Condition

Sivakumar,

Vijayakumar,

Tamilselvan

2020

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Background: Horsegram is considered as poor man’s crop and it has high nutritive value for human being. Apart from its photo and thermo sensitive in nature, formation of tendrils with excessive vegetative growth is major constraints and reason for poor yield. The tendrils act as sink and utilize photo-assimilates for its continuous growth. Hence, a strategy is required for reduction of vegetative growth and tendril formation for yield improvement. The current study is aimed to enhancement of yield in horsegram through physiological approach. Methods: An experiment was conducted to study the impact of plant growth regulators and nutrients viz., brassinolide (1 ppm), CCC (250 ppm), nutrient consortium (K2SO4 (0.5%) + MAP (0.5%) + FeSO4 (0.5%) + boric acid (0.3%) and TNAU Horsegram Wonder (1%) on growth, physiological traits and yield of horsegram (Macrotyloma uniflorum) variety Paiyur 2 under rainfed condition during 2018 - 2020. Plant growth regulators and nutrient consortium were used as foliar spray at flowering stage (50 days after sowing) under field condition. Result: TNAU Horsegram Wonder showed supremacy to enhance photosynthetic rate, SPAD value, soluble protein and yield compared to other treatments. Early flowering and reduced number of tendrils were observed in CCC nutrient consortium and TNAU Horsegram Wonder treatments. Foliar spray of 1% TNAU Horsegram Wonder recorded highest SPAD value of 22.8 which is on par with BL nutrient consortium. Highest photosynthetic rate of 16.94 µmol m-2 s-1 and lowest number of tendrils (2.6) were registered by 1% TNAU Horsegram Wonder. Foliar application of TNAU Horsegram Wonder at flowering stage registered highest grain yield of 1090 kg ha-1 and increased yield of 23% over control with BC ratio of 2.24.

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Plant Growth Retardants Improve Sink Strength and Yield of Sunflower

Cited by 5 publications

References 8 publications

Impact of Plant Growth Regulators on Sesame (Sesamum indicum L.) Yield and its Attributes

Impact of Plant Growth Regulators on Sesame (Sesamum indicum L.) Yield and its Attributes

Impact of Foliar Spray of Plant Growth Retardants with Potassium on Growth Traits, Gas Exchange Parameters and Grain Yield in Foxtail Millet (Panicum italicum L.)

Impact of Foliar Spray of PGR Nutrient Consortium on Growth, Photosynthesis and Yield of Horsegram (Macrotyloma uniflorum Lam) under Rainfed Condition

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Plant Growth Retardants Improve Sink Strength and Yield of Sunflower

Cited by 5 publications

References 8 publications

Impact of Plant Growth Regulators on Sesame (Sesamum indicum L.) Yield and its Attributes

Impact of Plant Growth Regulators on Sesame (Sesamum indicum L.) Yield and its Attributes

​Impact of Foliar Spray of Plant Growth Retardants with Potassium on Growth Traits, Gas Exchange Parameters and Grain Yield in Foxtail Millet (Panicum italicum L.)

Impact of Foliar Spray of PGR Nutrient Consortium on Growth, Photosynthesis and Yield of Horsegram (Macrotyloma uniflorum Lam) under Rainfed Condition

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Impact of Foliar Spray of Plant Growth Retardants with Potassium on Growth Traits, Gas Exchange Parameters and Grain Yield in Foxtail Millet (Panicum italicum L.)