scholarly journals Effect of pruning levels and growth regulator application on guava (Psidium guajava l.) cv. Lucknow – 49 for high yield and quality

2019 ◽  
Vol 8 (3) ◽  
pp. 3510
Author(s):  
Balamohan T.N. ◽  
Kala B.
Keyword(s):  
Growth Regulator ◽  
Psidium Guajava ◽  
Fruit Weight ◽  
High Density ◽  
High Yield ◽  
Chemical Treatments ◽  
Yield And Quality ◽  
Old Trees ◽  
Different Levels ◽  
Planting System

A field experiment to standardize the levels of pruning and growth regulator application in guava (Psidium guajava L.) cv. Lucknow-49 was undertaken at Horticultural College and Research Institute, Periyakulam during 2016-2017. The experiment consists of seven different levels of pruning and growth regulator application and the treatments were imposed on two years old trees. The result of the experiment revealed that, the treatment T5 (Light pruning + Paclobutrazol application) recorded the highest mean fruit weight, fruit length, fruit circumference, fruit pulp weight. Major objective of canopy management in guava cv. Lucknow -49 under high density planting system is to maximize the yield and maintaining the optimum canopy without overlapping. In a nutshell, taking into consideration of the performance of various pruning and chemical treatments, particularly yield and yield components, the treatment followed by T3 (Moderate pruning + Paclobutrazol application) in guava cv. Lucknow – 49 under high density planting system.

scholarly journals Analyzing the Effect of Different Levels of Pruning on Growth, Yield and Quality of Psidium guajava L. Cv. Lalit (Guava)

2020 ◽  
pp. 177-183
Author(s):  
Amrish Kumar ◽  
Saket Mishra ◽  
Ravi Kumar Singh
Keyword(s):  
Block Design ◽  
Growth Yield ◽  
Psidium Guajava ◽  
Fruit Weight ◽  
Research Field ◽  
Cropping Pattern ◽  
Yield And Quality ◽  
Tree Fruit ◽  
Different Levels

The present investigation entitled „„Effect of different levels of pruning on growth, yield and quality of guava. (Psidium guajava L.) Cv. Lalit” guava plant at the Horticulture Research Field, Department of Horticulture, SHUATS, Naini, Prayagraj agro-climatic condition during 2019-20. The data had been statistically analyzed by using Randomized Block Design. In this experiment, seven pruning treatments (control, 10 cm, 20 cm, 30 cm,40 cm, 50 cm and 60 cm) significantly influenced cropping pattern of guava viz. plant height (30, 60, 90, 120, 150 DAP), No. of flowers / tree, Fruit set (%), Days to first fruit harvest, Number of fruit per tree, Fruit weight (gm.), Fruit diameter (cm), Yield (Kg/Plant), Yield (t/ha.), TSS (%), Acidity (%). The maximum fruit yield was recorded in T4 (30 cm pruning) (13.33 kg) per plant and the minimum yield was recorded in T1 (Control) (8.19 kg) per plant.

scholarly journals Groundcover Materials Improve Quality and Storability of 'Aroma' Apples

HortScience ◽  
2005 ◽  
Vol 40 (5) ◽  
pp. 1416-1420 ◽  
Author(s):  
Ibrahim I. Tahir ◽  
Eva Johansson ◽  
Marie E. Olsson
Keyword(s):  
Starch Content ◽  
Quality Parameters ◽  
Fruit Weight ◽  
Chemical Treatments ◽  
Weed Growth ◽  
Yield And Quality ◽  
Fruit Maturity ◽  
Material Systems ◽  
Annual Weeds ◽  
Storage Disorders

To decrease the unfavorable effects of herbicides on human health and on the environment, new sustainable mulching methods have been developed. These methods aim to impede weed growth and also result in good yield and high fruit quality. The objective of the present study was to investigate the effects of the replacement of conventional methods (chemical treatments or mechanical) with different groundcover material systems (GCMSs) that use aluminum, bark and black polypropylene on 'Aroma' apple (Malus domestica) fruit maturity and quality, and fruit resistance to bruising and decay. The experiment was carried out from 1995 to 2001. Compared with conventional mulching methods, aluminum mulching was found to control annual weeds more effectively, to increase soil temperature, light reflection, yield, and fruit weight, to decrease bruise occurrence, to intensify and saturate the red coloration of apples, and to increase firmness and acid and sugar contents, resistance to storage disorders and decay after storage and shelf life. The other two used GCMSs, bark and black polypropylene also influenced many yield and quality parameters. However, less positive influences on the different parameters were found for bark compared with aluminum, and the use of black propylene was not favorable compared with the conventional mulching methods. Generally, decreased starch content at early picking dates was found for apples grown with GCMSs, indicating an earlier ripening for these apples compared with apples grown with a conventional mulching system. In summary, aluminum mulching was found to be the best alternative mulching method for production of 'Aroma' apples.

scholarly journals Effect of cultivars on tree growth, yield and quality attributes of apple on espalier architecture under high density planting system

2019 ◽  
Vol 14 (1) ◽  
pp. 20-25
Author(s):  
K K Srivastava ◽  
Dinesh Kumar ◽  
S R Singh ◽  
O C Sharma
Keyword(s):  
Correlation Matrix ◽  
Growth Yield ◽  
Fruit Weight ◽  
Color Intensity ◽  
Cross Sectional ◽  
Positive Correlation ◽  
Yield Efficiency ◽  
Yield And Quality ◽  
Positive Correlation Coefficient ◽  
Planting System

Annual extension growth (AEG), an indicator of tree vigor, was recorded maximum (145.63 cm) in Granny Smith and minimum (111.04cm) in Spartan, where as correlation matrix showed negative relation between trunk cross sectional area (TCSA) and AEG. Granny Smith exhibited maximum (184.09 g) fruit weight and it was minimum (128.68 g) in Spartan, the correlation matrix between fruit weight and yield efficiency exhibited significant positive correlation over the years. Yield tree-1 was maximum (29.45 kg tree-1) in Coe red Fuji and minimum (16.04 kg/tree) in Spartan. Significant and positive correlation coefficient (0.870) observed between yield and TCSA. TCSA has positive correlation with fruit weight and yield efficiency, maximum mean yield efficiency (1.11 kg/cm2) was recorded in Granny Smith. All the cultivars trained on this architecture had high chroma values (color intensity).

scholarly journals Influence of fertigation on Mrig Bahar guava (Psidium guajava L.) var. Arka Amulya under high density planting system

2020 ◽  
Vol 8 (3) ◽  
pp. 141-145
Author(s):  
Bhagyashree Das ◽  
Dilip Kumar Dash ◽  
Prabhat Chandra Pradhan ◽  
Pragyanshree Priyadarshinee Sahu
Keyword(s):  
Psidium Guajava ◽  
High Density ◽  
Planting System

scholarly journals Influence of growth, yield and quality of guava (Psidium guajava L.) by drip irrigation and fertigation

2017 ◽  
Vol 9 (1) ◽  
pp. 642-645
Author(s):  
K.V. Ramana Rao ◽  
Suchi Gangwar ◽  
Arpna Bajpai ◽  
Lavesh Chourasiya ◽  
Kumar Soni
Keyword(s):  
Plant Height ◽  
Interaction Effect ◽  
Block Design ◽  
Growth Yield ◽  
Psidium Guajava ◽  
Fruit Weight ◽  
Water Soluble ◽  
Irrigation Level ◽  
Yield And Quality

A study was conducted during 2010-2015 at Central Institute of Agricultural Engineering, Bhopal, to find out effect of irrigation and fertigation scheduling on growth, yield and quality of guava (Psidium guajava ). The ex-periments were laid out in factorial randomized block design with six treatment combinations which include three irrigation level (100, 80 and 60 %) along with two fertigation level (100 and 75 % water soluble fertilizers) and repli-cated thrice. The nitrogen, phosphorus and potassium fertilizers were applied through fertigation as well as soil ap-plication to test various attributes of five six old guava cv. L-49. The investigation indicated that the maximum plant height, Periphery of rootstock, yield per plant (kg/plant) and yield (t/ha) were higher under D1F1 (100 % irrigation with 100 % fertigation) followed by D2F1 (80 % irrigation with 100 % fertigation) and minimum under D3F2 (60 % irrigation with 75 % fertigation). Interaction effect was non-significant at 0.05 % level due to plant height (3.90 m) and Periphery of rootstock (26.26 cm) but significantly influenced by yield per plant (27.65 kg/plant) and yield (7.65 t/ha). Physico-chemical properties like fruit diameter (6.76 cm), fruit weight (182.10 g) and pulp weight (134.38 g) were significantly at 0.05 % due to different irrigation and fertigation level as well as interaction effects but fruit length (7.45 cm), TSS (13.22 %) and ascorbic acid (54.32 mg/100 g pulp) were non-significant due to different level of irri-gation and fertigation as well as interaction effect.

scholarly journals High-density Planting System with Nursery Plants by Cutting of Tomato

HortScience ◽  
2004 ◽  
Vol 39 (4) ◽  
pp. 802D-802
Author(s):  
Seung-Ku Yang ◽  
Kyong-Ju Choi ◽  
Soon-Ju Chung ◽  
Wol-Soo Kim*
Keyword(s):  
Fruit Weight ◽  
High Density ◽  
Planting Density ◽  
Tomato Seedling ◽  
Tomato Seedlings ◽  
Green House ◽  
Tomato Seeds ◽  
Cell Capacity ◽  
Planting System

In order to cultivate tomato of the first fruit cluster harvest a lot of nursery plants were required as much as 75,000 to 100,000 plants per hectare in green house in Korea. Therefore, it needs too many expenses to buy tomato seeds. This study was carried out to confirm the possibility of alternative use of the tomato cuttings instead of tomato seedlings of two varieties. The cutting materials of each node were taken from the suitable transplanting tomato seedling nursery plants in commercial green house. Four to five nodes of seedling nursery plants were cut into plug tray with 50 to 128 cells, 23 to 80 mL/cell in cell capacity. At 5 days after cutting rooting was initiated and the rooted plants could be transplanted as cutting nursery plants. The cutting nursery plants of Rockusanmaru and Momotarou-yoku varieties were planted to the perlite media in hydroponics bench in green house with 111,110 plants/ha (90 cm × 10 cm) in planting density at 8 May 2002. The matured fruits were harvested from 9 July through 26 July 2002. The number of harvested fruits was 2.9 to 3.3 for the two varieties. The fruit weight was 138 to 153 g for `Rockusanmaru', and 127 to 146 g for `Momotarou-yoku'. The cutting nursery plants of `Rockusanmaru' showed higher fruit yields as much as 51.5 tons/ha than that of seedlings as 40.3 tons/ha. There was a similar result in `Momotarou-yoku'. The duration from cutting to harvest of first fruit cluster was required 89 to 105 days, as well as 63 to 79 days from field planting to harvest. In conclusion the cultivation with tomato cutting nursery plants was considered as better effects in shorter periods in nursery raising and higher yields in comparison to conventional cultivation with seedlings.

scholarly journals Change of Melon Agrobiological Indicators Depending on Feeding Area of Plants

2021 ◽  
Vol 7 (2) ◽  
pp. 67-74
Author(s):  
A. Pahlevanyan ◽  
G. Martirosyan ◽  
L. Tadevosyan ◽  
I. Vardanian
Keyword(s):  
Quality Indicators ◽  
Total Yield ◽  
Fruit Weight ◽  
High Density ◽  
High Yield ◽  
Marketable Yield ◽  
Optimal Method ◽  
Scientific Center ◽  
High Productivity ◽  
Feeding Area

The purpose of this work is to study and identify the optimal method of sowing and plant feeding surface in seed-production of melon crop, providing a high yield of healthy varietal seeds with a low self-cost. The experiments were carried out in 2018–2020. on the experimental fields of the Scientific Center of Vegetable and Industrial Crops of the Ministry of Economy of the Republic of Armenia. The influence of the sowing scheme 200+80/2×60, 200+80/2×80 and 200+80/2×100 cm on phenological and quality indicators, fruit and seed productivity, average fruit weight, and resistance to diseases was studied. The study object was mid-early ripening melon variety Arpi, which is distinguished by high productivity and taste quality. The control was the sowing scheme 200+80/2×80 cm, which is generally accepted in the agricultural technology of melon cultivation in the Ararat valley. It was found that in case of low-density planting of plants (1.4 m2), the weight of one fruit is the heaviest (4.0 kg), but the productivity of the fruits is reduced by 11.6% in comparison with the control, and in case of high-density planting by 19.3%. Meanwhile, as the feeding area of one plant increases, in relation to the total yield the marketable yield increases, respectively 92.3%; 94.1% and 95.3%. The results of the experiments allow us to state the fact that high density of the seed producing field (feeding area 0.84 m2) contributes to an increase of seed yield by 27.3% compared to the control, to some extent reducing the self cost of seeds, however significant changes in quality indicators of the Arpi variety were not found. In its turn, early diagnosis of diseases based on the modern PCR method allows to take protective measures in time and accordingly contributes to the production of healthy seeds.

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