Studies on the effect of pre-harvest application of plant growth regulators and chemicals on yield and quality of guava (Psidium guajava L.) cv. L.-49

Manivannan, M. I.; Irulandi, S.; Thingalmaniyan, K. Shoba

doi:10.15740/has/ijas/11.1/138-140

Cited by 4 publications

(7 citation statements)

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“…The higher sugar content of fruits might be due to role of potassium in translocation of sugars from leaves to fruits and maybe be because of higher assimilating power of leaves over a long period resulting in increased availability of sugars in the fruits. These results are similar with Hamouda et al, (2015) and Tehranifar and Tabar (2009) in pomegranate, Vijayalakshmi and Srinivasan (2000), Kumar et al, (2006) and Baiea et al, (2015) in mango, Manivannan et al, (2015) and Dutta (2004) in guava, Nandan et al, (2011) in banana, Pandey and Singh (2016) in litchi, Doroshenko et al, (2005) in apple and Lester et al, (2007) in cantaloupe. The results gained in the present investigation under different potassium sources found significant concerning juice pH, ascorbic acid and anthocyanin content (Table 3).…”

Section: Resultssupporting

confidence: 89%

“…The results were in line with Heshi et al, (2001), Khayyat et al, (2012), Thirupathi and Ghosh (2015) and Hamouda et al, (2015) in pomegranate, Dalal et al, (2017) and Vijay et al, (2016) in sweet orange cv. Jaffa, Manivannan et al, (2015) in guava, Altindisli et al, (1999) in grapes, Yadav et al, (2014) in berand Baiea et al, (2015) in mango. Also, it was reported that a positive correlation exists between potassium concentration and anthocyanin content which play a crucial role in anthocyanin synthesis through increasing the translocation of sugars into fruits, as well as acting as a cofactor and stimulator of some enzymes like UDPgalactose: flavonoide-3-o-glicosyl transferase.…”

Section: Resultsmentioning

confidence: 99%

“…Such similar results are also reported in other crops like in sweet orange cv. Jaffa (Dalal et al, 2017) and (Vijay et al, 2016), mango (Vijayalakshmi and Srinivasan, 2000), grapes (Sharma and Sindhu, 2005), guava (Manivannan et al, 2015), banana (Nandan et al, 2011), ber (Yadav et al, 2014) and in apple (Doroshenko et al, (2005) and (Yousuf et al, 2018).…”

Section: Resultsmentioning

confidence: 99%

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Impact of Foliar Application of Potassium on Quality of Pomegranate cv. Bhagwa

Chidananda¹,

Shivakumar²,

Salimath³

et al. 2020

Int.J.Curr.Microbiol.App.Sci

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Section: Resultssupporting

confidence: 89%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Impact of Foliar Application of Potassium on Quality of Pomegranate cv. Bhagwa

Chidananda¹,

Shivakumar²,

Salimath³

et al. 2020

Int.J.Curr.Microbiol.App.Sci

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“…Agnihotri et al (2013) [2] found that foliar spraying with 60 ppm 2, 4-D increased shoot length. The usage of potassium sulphate (1%) significantly improved the branch length of the guava tree (Manivannan et al, 2015) [54] . According to Bhagawati et al (2015) [9] , the earliest emergence of buds and cumulative lengths of new shoots are due to vigorous pruning.…”

Section: Effect On Linear and Radial Growth Of Shootmentioning

confidence: 99%

“…According to Katiyar et al (2009) [44] , the maximum yield was found in urea 2% + NAA 100 ppm. Manivannan et al (2015) [54] investigated that application of potassium sulphate (1%) significantly enhanced the yield parameters viz., fruit length, number of fruits, fruit weight and yield per tree. Saini et al (2016) [71] observed that all the treatments were effective in increasing the growth characters, however, heading back at the level of 200 cm and two pinchings were found most effective in increasing the growth characters i.e.…”

Section: Fruit Yieldmentioning

confidence: 99%

Studied the growth, yield and quality attributes of guava as influenced by Canopy management practices: A review

Singh,

Dixit

2024

Int. J. Agric. Extension Social Dev.

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Guava (Psidium guajava L.) is important tropical fruit crop grown throughout the tropical and sub-tropical regions. Although it is native to tropical America, its cultivation has spread to all tropical countries, with India being particularly important (Samson, 1980). It is a resilient, prolific bearer, and very profitable fruit crop that may be produced successfully in a variety of soil and climatic conditions. As a result, canopy management aids in achieving high quality and productivity. Now a days, there is a global trend in fruit-producing countries to accommodate the largest number of fruit plants possible by employing canopy management and pruning procedures to regulate tree growth and structure, so limiting tree size while yet ensuring high fruit production of desired quality. Pruning not only helps to encourage new shoots after the harvest but has also been adapted for rejuvenation of orchards along with crop regulation. Canopy management includes training and pruning, rootstock and scions, high density planting system and application of plant growth regulators. Guava bears flowers on current season's growth. Therefore, a light annual pruning is considered to be essential to boost up new vegetative shoot emergence. The length of flowering shoots tended to decrease with delay in time of pruning but increased with the increasing severity of pruning irrespective of season ( Bajpai et al., 1973;Gopikrishna, 1981;Dhaliwal et al., 1998). An increase in shoot length due to severity of pruning might be due to elimination of growing points which in turn encouraged the length of remaining shoots (Dhaliwal et al., 1998). Pruning by heading back encourages new, long, whip-like shoots growth with sparse flowering compared with cutting at fork (Nakasone and Paull, 1998). Canopy Management included, training and pruning of guava trees has been found to improve yield and fruit quality (Mitra and Bose, 1990). The trees should be kept open for better penetration of sunlight leading to more number of shoot and higher yield.

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Assessment of foliar application of nutrients on yield and quality of guava (Psidium guajava)

BALODA,

SHARMA,

SHARMA

et al. 2024

Indian J Agri Sci

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Present study was carried out during rainy (kharif) seasons of 2020–2022 at CCS Haryana Agricultural University, Hisar, Haryana to assess the effect of foliar application of nutrients on the yield and quality aspects of rainy season guava (Psidium guajava L.). Experiment was conducted in a randomized block design (RBD) comprised of 4 different foliar applications of zinc sulphate, viz. ZnSO4 @0% (Control); ZnSO4 @0.3%; ZnSO4 @0.6%; ZnSO4 @0.9%; and 4 foliar applications of potassium sulphate, viz. K2SO4 @0% (Control); K2SO4 @1.0%; K2SO4 @1.5%; and K2SO4 @2.0, and replicated thrice. However, foliar application of ZnSO4 @0.9% was found to be the best treatment in improving the fruit yield (46.2 kg/plant), fruit weight (135.2 g), fruit length (6.10 cm) and fruit breadth (5.64 cm) of rainy season guava (cv. L-49). Similarly, ZnSO4 @0.6% was found best for increasing the TSS (total soluble solids) (10.6 B) and ascorbic acid content (187.4 mg/100 g pulp). On the other hand, K2SO4 @2.0% increased the fruit yield (45.4 kg/plant), fruit weight (135.2 g) and ascorbic acid content (190.3 mg/100 g pulp) of guava fruit. The maximum N, P, K and Zn content for nutrient analysis in leaf was noted under foliar application of ZnSO4 @0.9% and K2SO4 @2.0%. The maximum N and Zn content in fruit was observed due to application of ZnSO4 @0.9% and maximum P and K content was observed with treatment ZnSO4 @0.6%. Similarly, K2SO4 @2.0% increased the N, P, K and Zn content of guava fruit.

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Studies on the effect of pre-harvest application of plant growth regulators and chemicals on yield and quality of guava (Psidium guajava L.) cv. L.-49

Cited by 4 publications

References 0 publications

Impact of Foliar Application of Potassium on Quality of Pomegranate cv. Bhagwa

Impact of Foliar Application of Potassium on Quality of Pomegranate cv. Bhagwa

Studied the growth, yield and quality attributes of guava as influenced by Canopy management practices: A review

Assessment of foliar application of nutrients on yield and quality of guava (Psidium guajava)

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