scholarly journals Effect of Foliar Application of Potassium Sources on Quality of Peach (Prunus persica L.) cv. Shan-i-Punjab Fruit

2021 ◽  
Vol 9 (3) ◽  
pp. 279-288
Author(s):  
Ajmal Hussain Zai ◽  

The aim of present study was to study the effect of foliar spray of different nutrients (potassium sulphate, potassium nitrate and potassium orthophosphate) on physic-chemical attributes in peach cv. Shan-i-Punjab at different concentrations. The experiment was conducted in randomized block design (RBD) with three replications having one tree per replication. The treatments were applied as foliar spray in the end of March. The maximum fruit weight (83.54g) and fruit length (62.8 mm) was recorded in KNO3 (3%), closely followed by KNO3 (2%) i.e. (81.27 g and 62.20 mm) respectively, Foliar spray of KNO3 (2%) resulted into maximum fruit diameter (62.40 mm) as compared to all other treatments. Maximum shape index (1.06) was observed with foliar spray of KH2PO4 (2%). The physical quality of fruits with respect to stone weight, pulp weight, pulp stone ratio and pulp thickness was found maximum with foliar spray of KNO3 @ 3.0% i.e. (9.32g, 74.22g, 7.96 and 1.93 mm) respectively, Minimum fruit firmness and fruit acidity was observed in foliar spray of K2SO4 (2%) i.e. (6.96 kg/cm2 and 0.89%) respectively, while foliar spray of K2SO4 @ 1.5% resulted into maximum mean TSS i.e. (8.20%). High skin color was observed with foliar spray of K2SO4 (1.5 and 2.0%). Foliar spray of KNO3 at (2.0 and 3.0%) resulted into mean fruit ascorbic acid (9.32 mg/100 g fruit pulp).

Author(s):  
Amina Alvi ◽  
M. Z. Rashid ◽  
M. A. Rashid ◽  
S. Ahmad ◽  
M. Ullah

Various growth regulators have been used to improve the quality of different fruit crops. Foliar spray of macro and micronutrients play an important role in vegetative growth, yield and fruit quality. In the present study, the influence of foliar application of growth regulators and nutrients on fruit splitting and fruit quality was evaluated. For that purpose, Naphthaleneacetic acid (NAA), Potassium nitrate (KNO3) and Boric acid (H3BO3) at the rate of 40 ppm, 1% and 0.3% were used respectively. Spray of chemicals were applied in 2nd and 8th week from full bloom to yield in pomegranate cultivar ‘Golden pearl’. The experiment was designed under Randomized Complete Block Design (RCBD) comprised with seven treatments and replicated thrice. Fruit splitting was reduced (48.68%) significantly with application of KNO3 + Boric acid, while maximum fruit size (60.26 cm2), fruit weight (84gm), fruit grain weight (136.38gm), total soluble solid (TSS) 12.52% and yield (21.9kg/plant) were observed in KNO3 + Boric acid. Moreover, peel weight was increased in control (60.66 gm) and minimum was observed in 48.62 gm in KNO3 + Boric acid. Finally, it is concluded KNO3 %+ Boric acid reveled best results against fruit splitting % and other fruit quality parameters. These findings show that application of KNO3+ Boric acid significantly influences fruit quality of pomegranate when fruit are in the beginning stages of growth and development.


2021 ◽  
Vol 42 (4) ◽  
pp. 1085-1091
Author(s):  
A. Dash ◽  
◽  
D. Samant ◽  
D.K. Dash ◽  
S.N. Dash ◽  
...  

Aim: To evaluate the efficacy of foliar application of Ascophyllum nodosum extract, homobrassinolide, and triacontanol for improving fruit retention, yield, and quality in mango. Methodology: The experiment was laid out in a randomized block design with 10 treatments, comprising Ascophyllum nodosum extract (1000, 3000, and 5000 ppm), homobrassinolide (0.1, 0.3, and 0.5 ppm), triacontanol (1, 3, and 5 ppm), and water as control. Treatments were foliar sprayed at panicle initiation, pea, and marble stages of fruit growth. Observations were recorded on flowering, fruiting, yield, and fruit quality parameters. Results: All the treatments of Ascophyllum nodosum extract and triacontanol exhibited significant improvement in fruit retention, fruit weight, yield, and fruit quality parameters over control. However, 3000 and 5000 ppm Ascophyllum nodosum extract treatments outperformed all the treatments of triacontanol. Plants sprayed with 5000 ppm Ascophyllum nodosum extract recorded the maximum value for fruit retention (48.15, 36.74, 29.48, and 25.76% at 3, 6, 9, and 12 weeks after pea stage, respectively), number of fruits (133.25 per tree), fruit weight (188.84 g per fruit), and yield (25.16 kg per tree), whereas the lowest values were recorded under control. With respect to fruit quality, 3000 ppm ANE produced the fruits with the highest TSS (19.62 °B), whereas the highest TSS/acid ratio was recorded with 5000 ppm ANE (62.29) treatment. Interpretation: In mango, foliar application of Ascophyllum nodosum extract (3000-5000 ppm) thrice at panicle initiation, pea, and marble stages of fruit growth is effective for reducing fruit drop and enhancing quantum and quality of produce.


2020 ◽  
Vol 10 (1) ◽  
pp. 88
Author(s):  
NI MADE KESUMA DEWI ◽  
I NYOMAN RAI ◽  
I WAYAN WIRAATMAJA

Fertilization Response to Off-Season Production and Fruit Quality of Salak Gula Pasir (Salacca Zalacca cv. Gula Pasir) and water and Chlorophyll Content of Leaves. Naturally salak Gula Pasir (Salacca zalacca cv. Gula Pasir) flowers every three months a year, but only one to two seasons of the flowers can develop into fruit. Failure of flowers develop into fruit, usually call fruit-set failure, causes the fruits be available seasonally in a short time period, only 2-3 months a year, i.e. during the harvest time (on-season period) from December to February. This research aimed to know response of fertilization to off-season production and fruits quality of salak Gula Pasir and its ralatinship to water and chlorophyll content of leaves. The study used a randomized block design with the treatment was fertilization, consists of 14 levels (fertilized according farmers’ way with leaf midrib only/control, fertilized with compost, mycorrhizal biofertilizer, inorganic NPK, combination of farmers' way and compost, combination of farmers’ way and mycorrhizal biofertilizer,  combination of farmers' way and inorganic NPK, combination of compost and mycorrhizal biofertilizer,  combination of compost and inorganic NPK,  combination of mycorrhizal and inorganic NPK,  combination of farmers’ way, compost, and mycorrhizal biofertilizer,  combination of farmers’ way, compost, inorganic NPK,  combination of farmers’ way, mycorrhizal biofertilizer and inorganic NPK, and  combination of farmers’ way, compost, mycorrhizal biofertilizer, and inorganic NPK). Each treatment was repeated 3 times. The study was carried out in the off season period from April to Nopember 2018 at the production center of salak Gula Pasir plantation i.e. at Sibetan Village, Bebandem District, Karangasem Regency. The results showed that the highest fruit weight per tree at the off-season was obtained on combination of fertilization of farmers' way and mycorrhizal biofertilizer  (of 2536.67 g) and the lowest was on  control/fertilized according farmers’ way  (1,220.00 g). Fertilization with compost, mycorrhizal biofertilizer, and inorganic NPK singly, or by combining it, increases the quality of off-season fruit of salak Gula Pasir, reflected by the increase of weight per fruit, fruit diameter and fruit sweetness compared to control. The lower of yield per tree and quality of fruit on control compared to other fertilization treatments was relate to low relative water content and chlorophyll content of leaves.


2018 ◽  
Vol 2 (3) ◽  
pp. 48-58
Author(s):  
Ni Komang Alit Astiari ◽  
Luh Kartini ◽  
Ni Putu Anom Sulistiawati ◽  
I Nyoman Rai

The research aimed to find out the efforts to produce off-season orange fruit and increase the quality of fruit through the application of potassium nitrate and agrodyke organic fertilizer. The study used a factorial randomized block design with 2 treatment factors. The first factor is the flower induction application using potassium nitrate (K) consisting of 3 levels, namely (K0 = 0 g/tree), (K1 = 20 g/tree), and (K2 = 40 g/tree). While the second factor is the application of agrodyke organic fertilizer (P) consisting of 4 levels, namely (P0 = 0 g / tree), (P1 = 15 g/tree), (P2 = 30 g / tree) and (P3 = 45 g/tree). There are 12 combination treatments and each of them is repeated 3 times so that 36 tree plants are needed. The results showed the interaction between potassium nitrate treatment with agrodyke organic fertilizer treatment had no significant effect on all observed variables. Potassium nitrate treatment and agrodyke organic fertilizer can significantly improve the quality of orange citrus fruit out of season physically. In the treatment of potassium nitrate 40 g/tree, the weight of the harvested fruit per tree was obtained, the weight per fruit and the highest fruit diameter were 13703.90 g; 99.92 g and 6.81 cm or an increase of 62.24%; 16.32% and 9.49% compared with no treatment of potassium nitrate which is 8446.60 g; 87, 42 g and 6.22 cm.


Author(s):  
S. P. S. Solanki ◽  
Naveen C. Sharma ◽  
J. S. Chandel ◽  
Debashish Hota

The present studies were carried out in Experimental Block, Department of Fruit Science, Dr. YS Parmar University of Horticulture and Forestry, Nauni, Solan (HP) during the year 2015-16. Nine years old trees of uniform size and vigour planted at 4.0 x 2.0 m spacing were selected for the studies. The experiment was laid out in a randomized block design with 11 treatments. The maximum increased in fruit set (87.70%) and yield (20.16 kg/tree) were observed significantly higher under 75% RDF + vermicompost 15 kg/tree. Maximum fruit length (64.06 mm), breadth (61.89 mm), fruit weight (129.51 g), total soluble solids (13.33 ºB) and total sugars (7.51%) were recorded under 75% RDF + vermicompost 15 kg/tree, however, highest fruit firmness (6.56 kg/cm2) and lowest titratable acidity (0.50%) were found with 4 applications of jeevamrut.


2018 ◽  
Vol 24 (1) ◽  
Author(s):  
RAVI KUMAR ◽  
A. K. PAL ◽  
SANDEEP K. MAURIYA ◽  
KULVEER SINGH YADAV ◽  
ARUN KUMAR

An investigation was carried out during rainy season at the HorticultureResearch Farm, Department of Horticulture, Institute of Agriculture Sciences, Banaras Hindu University, Varanasi. The investigation comprised ten treatments viz.,three levels each of gibberellic acid GA3 (50, 75 and 100 ppm), cytokinin (50, 75 and 100 ppm) and NAA (50, 75 and 100 ppm) along with control (distilled water) were applied as foliar application at 30 and 40 days after transplanting. The experiment was laid out in a randomized block design with three replications. Results revealed that, the minimum number of days (49.97) to 1st edible fruits harvesting was recorded in 100 ppm GA3 which was statistically at par with 75 ppm GA3. The maximum fruit length (13.22 cm), fruit diameter (1.82 cm), number of seeds per fruit (50.13), number of fruits per plant (23.47), fruit yield per plant (354.30 g), highest fruit yield (141.72 q/ha), 100 seed weight (5.18 g), seed yield per plant (47.97 g) and highest seed yield (19.19 q/ha) were recorded with GA3 at 100 ppm. The maximum fresh fruit weight (15.85 g) was recorded in 50 ppm.


2020 ◽  
Vol 01 (01) ◽  
pp. 05-13
Author(s):  
M. Hasan ◽  
M. B. Akter ◽  
M. M. Karim ◽  
F. Yasmine ◽  
A. K. Hasan

The experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh, to explore the growth and yield performance of boro rice cv. BRRI dhan28 is influenced by foliar spray of potassium nitrate (KNO3) at four rice growth stages. The experiment consisted of four doses of KNO3 viz. 0 (Control), 0.25, 0.50 and 1.00 kg ha−1 and applied at four growth stages of rice development viz. at panicle initiation, at ear emergence, at anthesis period and at dough stage. This experiment was carried out in Randomized Complete Block Design (RCBD) with three replications with 10 m2 (4.0 m × 2.5 m) unit plot size and spacing between blocks and unit plots was 1 m and 0.5 m, respectively. Results revealed that foliar application of potassium nitrate at four growth stages significantly affected yield and yield contributing characters of BRRI dhan28. But most of the yield contributing characters did not differ significantly due to the interaction between potassium nitrate and stage of foliar spray. However, the foliar application of KNO3 @ 0.25 kg ha−1 showed the highest yield production (5.86 kg ha−1) while the lowest yield (4.85 kg ha−1) was found in control. Furthermore, better yield performances were recorded when the KNO3 was applied at panicle initiation stage rather than the other four growth stages. The total number of tillers, 1000–grain weight and grain yield, was higher with foliar spraying of a 0.25 kg ha−1 KNO3 at panicle initiation stage. From this experiment, it may be concluded that foliar application of KNO3 affected the yield performances of BRRI dhan28 and 0.25 kg ha−1 KNO3 produced the highest grain yield when applied at panicle initiation stage of boro rice.


Author(s):  
Manisha . ◽  
Rakesh Kumar ◽  
Hardev Ram ◽  
Nitin Tyagi ◽  
Rajesh Kumar Meena ◽  
...  

Background: The improvement in livestock productivity may be possible by availing better quality fodder in adequate quantity to the dairy farmers. Zinc deficiency might be a major factor for lower quality fodder of cowpea. Methods: The experiment was laid out in factorial randomized block design; comprised of three cowpea cultivars viz., C-152, MFC-08-14 and MFC-09-1 and five zinc management practices viz., control; 10 kg ZnSO4 as basal; 20 kg ZnSO4 as basal; 0.5% ZnSO4 as foliar spray at 20 DAS; 0.5% ZnSO4 as foliar spray at 20 and 40 DAS. Result: Results revealed that C-152 showed significantly better quality in terms of higher dry matter, crude protein and total ash; and lower acid insoluble ash, neutral detergent fibre, acid detergent fibre and acid detergent lignin amongst all the three varieties. Though, remarkably higher ether extract was obtained with MFC-08-14. Among the zinc management practices, 20 kg ZnSO4 as basal (Zn3) and foliar application of 0.5% ZnSO4 at 20 and 40 DAS (Zn5) recorded significant improvement in fodder yield and quality traits of cowpea.


Horticulturae ◽  
2021 ◽  
Vol 7 (8) ◽  
pp. 228
Author(s):  
Lu-Lu Meng ◽  
Sheng-Min Liang ◽  
Anoop Kumar Srivastava ◽  
Yan Li ◽  
Chun-Yan Liu ◽  
...  

The role of arbuscular mycorrhizal fungi in sweet oranges is well known, but the function of their secondary metabolite, especially the easily extractable glomalin-related soil protein (EE-GRSP), an active fraction of glomalin, is still unclear. The proposed study aimed to analyze the field response of foliar application of exogenous EE-GRSP on tree mycorrhizal development and fruit quality of two sweet orange (Citrus sinensis L. Osbeck) varieties viz., Lane Late Navel (LLN) and Rohde Red Valencia (RRV). Application of EE-GRSP significantly increased the root mycorrhizal colonization and soil mycorrhizal hyphal length in both the sweet orange varieties. The external quality of fruits (fruit weight, polar diameter, and equatorial diameter) also improved in response to foliar application of EE-GRSP in both sweet orange varieties. However, EE-GRSP treatment showed no change in fruit soluble solid content, while it increased the Vc content, solids-acid ratio, fructose, glucose, and sucrose content of sarcocarp in the two sweet oranges varieties. The LLN variety treated with EE-GRSP recorded significantly higher N, P, K, Fe, and Si content of sarcocarp as a mark of nutritional quality, while the RRV variety treated with EE-GRSP displayed a higher concentration of nutrients like Cu, Fe, Si, and Zn in the sarcocarp as compared with the corresponding non-treated control. To the best of our knowledge, this is the first report regarding the improvement in fruit quality of late-ripening sweet oranges (especially LLN) in response to foliar application of EE-GRSP as another potential biostimulant.


Agrika ◽  
2019 ◽  
Vol 13 (2) ◽  
pp. 136
Author(s):  
Yuni Agung Nugroho

 ABSTRAKSetiap varietas tanaman salak mempunyai spesifikasi deskriptif meliputi warna kulit, tekstur buah, cita rasa daging dan aroma buah.  Kematangan bunga betina dan bunga jantan tidak selalu bersamaan pada setiap kebun salak sehingga diperlukan cara agar dapat mempertahankan umur guna dari benangsari dan alat bantu penyerbukan yang dapat meningkatkan keberhasilan penyerbukan. Tujuan penelitian ini adalah untuk meningkatkan keberhasilan penyerbukan salak pondoh Ampelgading dengan rekayasa penyimpanan benangsari dan alat bantu penyerbukan. Penelitian menggunakan Rancangan Acak Kelompok, dengan perlakuan paduan antara   rekayasa penyimpanan dengan jenis alat bantu penyerbukan. Setiap perlakuan diulang 3 kali. Sebagai kontrol adalah perlakuan dengan penyerbukan konvensional.  Untuk analisa data kuantitatif dilakukan dengan menggunakan analisa ragam (uji F))  terhadap  karakteristik buah salak pondoh (Salacca zalacca) hasil penyerbukan.  Hasil penyimpanan 1 minggu pada semua perlakuan cara penyimpanan masih mampu mempertahankan kualitas benangsari tanaman salak pondoh.  Namun pada penyimpanan umur 2 minggu  menunjukkan bahwa pada suhu kamar dan eksikator sudah menunjukkan adanya jamur pada serbuksari yang disimpan, sedangkan pada penyimpanan di kulkas dan freezer masih bagus kondisi serbuksari.  Penyimpanan    satu minggu pada freezer kombinasi  penyerbukan memakai kuas memberikan keberhasilan fruitset lebih banyak jika dibandingkan dengan kontrol. Kata kunci: benangsari; penyerbukan; penyimpanan; rekayasa; salak pondoh ABSTRACTEach zalacca variety has descriptive specifications including skin color, fruit texture, meat taste and fruit aroma. Maturity female and male flowers are not always at the same time at each zalacca garden so it is needed a way to maintain the useful life of stamens and pollination aids that can increase the success of pollination.  The purpose of this study is to increase the success of Ampelgading salak  pollination with engineering of benangsari storage and pollination aids.  The study used a Randomized Block Design with a combination of storage engineering with the type of pollination aids. Each treatment was repeated 3 times. As control is  conventional pollination. For quantitative data analysis, the analysis of variance (F test) was carried out on the characteristics of salacca pondoh (Salacca zalacca) from pollination.  One week storage results on all treatments of storage methods are still able to maintain the quality of stamen. However, at the age of 2 weeks of storage shows that at room temperature and the exitator has shown the presence of fungus in stored starch, while the storage in the refrigerator and freezer is still good condition. One week of storage at the freezer pollination combination using a brush gives more fruitset success when compared to controls. Keywords: engineering; pollination; pondoh snakefruit;stamens;storage


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