Critical Levels of Soil- and Nutrient-Solution Calcium for Vegetative Growth and Fruit Development of Florunner Peanuts

1979 ◽  
Vol 43 (6) ◽  
pp. 1159-1164 ◽  
Author(s):  
J. D. Wolt ◽  
Fred Adams
Keyword(s):  
Nutrient Solution ◽  
Fruit Development ◽  
Vegetative Growth ◽  
Critical Levels

scholarly journals EFFECT OF DIPPING IN GIBBERLLIC ACID AND SPRAYING NUTRIENT SOLUTION AGRO LEAF ON SOME VEGETATIVE GROWTH AND YIELD OF JERUSALUM ARTICHOKE.

2016 ◽  
Vol 47 (4) ◽  
Author(s):  
Sadik & et al.
Keyword(s):  
Leaf Area ◽  
Nutrient Solution ◽  
Vegetative Growth ◽  
Dry Weight ◽  
Factorial Experiment ◽  
Growth And Yield ◽  
Control Treatment ◽  
Highest Weight ◽  
Number Of Leaves ◽  
Number Of Branches

This study was conducted in experimental fields, Department of Horticulture, University of Bagdad, in Abu-Graib  during season 2011-2012 for jerusalum artichoke. This study was included the effect of dipping tubers in three concentrations of GA3(2.5,5,10g/l) (G1,G2,G3),as well as to control treatment (G0), and spraying nutrient solution Agro leaf A1 (8g/l), as well as to control treatment (A0). This study was made by using Factorial experiment (4*2) within the design RCBD with three replicates. Results could be summarized as follows: G3A0 increased field emergence (12.00 day), G2A0 increased percentage of germination (99.33%) and G2A1 increased number of branches (4.60 stem.plant-1) but the treatment G1A1gave highest rate for number of leaves, leaf area, guide of leaf area, dry weight of the vegetative parts and dry weight of 100gm tubers as(4495.10 leaf.plant-1, 2246.20 dsm2, 99.84, 922.40g, 24.00g.) respectively. The treatments gave significant differences quantity yield, so treatment G3A0 gave highest weight of the tubers as(45.55g.) but the treatment G3A1 gave highest number of the tubers as(68.00 tuber.plant-1 ) and highest yield of plant as (2890g/plant).

scholarly journals `Bing' Sweet Cherry on the Dwarfing Rootstock `Gisela 5': Thinning Affects Fruit Quality and Vegetative Growth but not Net CO2 Exchange

2004 ◽  
Vol 129 (3) ◽  
pp. 407-415 ◽  
Author(s):  
Matthew D. Whiting ◽  
Gregory A. Lang
Keyword(s):  
Leaf Area ◽  
Fruit Quality ◽  
Fruit Development ◽  
Vegetative Growth ◽  
Sweet Cherry ◽  
Fruit Growth ◽  
Soluble Solids ◽  
Stage Iii ◽  
Floral Bud ◽  
Gisela 5

Canopy fruit to leaf area ratios (fruit no./m2 leaf area, F:LA) of 7- and 8-year-old `Bing' sweet cherry (Prunus avium L.) on the dwarfing rootstock `Gisela 5' (P. cerasus L. × P. canescens L.) were manipulated by thinning dormant fruit buds. F:LA influenced yield, fruit quality, and vegetative growth, but there were no consistent effects on whole canopy net CO2 exchange rate (NCERcanopy). Trees thinned to 20 fruit/m2 LA had yield reduced by 68% but had increased fruit weight (+25%), firmness (+25%), soluble solids (+20%), and fruit diameter (+14%), compared to unthinned trees (84 fruit/m2). Fruit quality declined when canopy LA was ≈200 cm2/fruit, suggesting that photoassimilate capacity becomes limiting to fruit growth below this ratio. NCERcanopy and net assimilation varied seasonally, being highest during stage III of fruit development (64 days after full bloom, DAFB), and falling more than 50% by 90 DAFB. Final shoot length, LA/spur, and trunk expansion were related negatively to F:LA. F:LA did not affect subsequent floral bud induction per se, but the number of flowers initiated per bud was negatively and linearly related to F:LA. Although all trees were thinned to equal floral bud levels per spur for the year following initial treatment (2001), fruit yields were highest on the trees that previously had no fruit, reflecting the increased number of flowers initiated per floral bud. Nonfruiting trees exhibited a sigmoidal pattern of shoot growth and trunk expansion, whereas fruiting trees exhibited a double sigmoidal pattern due to a growth lag during Stage III of fruit development. Vegetative growth in the second year was not related to current or previous season F:LA. We estimate that the LA on a typical spur is only sufficient to support the full growth potential of a single fruit; more heavily-set spurs require supplemental LA from nonfruiting shoots. From these studies there appears to be a hierarchy of developmental sensitivity to high F:LA for above-ground organs in `Bing'/`Gisela 5' sweet cherry trees: trunk expansion > fruit soluble solids (Stage III) > fruit growth (Stage III) > LA/spur > shoot elongation > fruit growth (Stages I and II) > LA/shoot. Current season F:LA had a greater influence on fruit quality than prior cropping history, underscoring the importance of imposing annual strategies to balance fruit number with LA.

EFFECT OF FRUIT DEVELOPMENT ON VEGETATIVE GROWTH OF SQUASH

1981 ◽  
Vol 61 (3) ◽  
pp. 673-676 ◽  
Author(s):  
C. D. ZACK ◽  
J. B. LOY
Keyword(s):  
Fruit Development ◽  
Vegetative Growth ◽  
Stem Elongation ◽  
Growing Season ◽  
Cucurbita Maxima ◽  
Leaf Initiation

The effect of the presence or absence of fruit on vegetative growth in a bush strain and bush-vine hybrid of squash (Cucurbita maxima Duch.) was studied. Internode lengths increased progressively during development in both bush and heterozygous bush-vine plants, but at a faster rate in bush-vine plants. The presence of fruit did not significantly affect internode lengths, but decreased the rate of leaf initiation in bush plants, thus suppressing stem elongation and maintaining the bush phenotype late into the growing season.

scholarly journals Phenology of ‘Magallanes’ Pummelo (Citrus maxima) Trees and Its Growth and Development as Influenced by Potassium Nutrition

2019 ◽  
pp. 1-18
Author(s):  
Alminda Magbalot-Fernandez ◽  
Constancio C. De Guzman
Keyword(s):  
Fruit Development ◽  
Vegetative Growth ◽  
Fruit Set ◽  
Foliar Application ◽  
Soil Analysis ◽  
Fruit Size ◽  
Tree Height ◽  
Maximum Growth ◽  
Nutrient Competition ◽  
Citrus Maxima

This study aimed to determine the influence of potassium (K) fertilization on the vegetative growth, flowering and fruit development of 13-year old ‘Magallanes’ pummelo [Citrus maxima (Burm. Ex Rumph.) Merr.] trees. The experiment was conducted at South Davao Corporation (SODACO) farm, Davao city for 12-months duration. Five treatments were observed with increasing K levels were applied per tree: control (no fertilization), without K, 150 g K basal (recommended rate based on soil analysis), 225 g K basal, and 225 g K basal + foliar application. The critical stage of tree growth coincided with the months of May and August. Peak leaf flushing occurred in June and peak flowering with fruit set in April. The crucial stage of fruit development was noted two months after fruit set. Thus, optimum fertilization must be applied during these stages for maximum growth and production in ‘Magallanes’ pummelo. The vegetative growth of pummelo was not affected by increasing K rates. The recommended rate (150g K basal per tree) significantly increased canopy diameter by 76% but higher K rates did not increase tree height, due to the effect of fruit load and nutrient competition. On the other hand, increasing K rates to 50% higher than the recommended rate (225 g K per tree) increased the number of flushes by 36-100%. Flowering, fruit set and yield of ‘Magallanes’ pummelo were also enhanced by higher K rates. Flowering was increased by 4 times, fruit set by 86-100%, fruit number by 7 times, weight per fruit by 22-26%, and yields up to 9 times on trees composted with 225 g K rates.  The fruit size (diameter and length), however, did not increase by increasing the K level.

scholarly journals Silicon Supplied via Root or Leaf Relieves Potassium Deficiency Effects in Common Bean

2021 ◽  
Author(s):  
Marcilene Machado dos Santos Sarah ◽  
Renato de Mello Prado ◽  
Jonas Pereira de Souza Júnior ◽  
Gelza Carliane Marques Teixeira ◽  
João Carlos dos Santos Duarte ◽  
...  
Keyword(s):  
Common Bean ◽  
Nutrient Solution ◽  
Vegetative Growth ◽  
Photosynthetic Activity ◽  
Foliar Application ◽  
Foliar Spray ◽  
Bean Plants ◽  
K Deficiency ◽  
Use Efficiency ◽  
And Control

Abstract Potassium (K) deficiency affects physiological performance and decreasing vegetative growth in common bean plants. However, silicon (Si) supplied via nutrient solution or foliar application may relieve nutritional stress. Thus, two experiments were carried out: initially, a test was performed to determine the best source and concentration of leaf-applied Si. Subsequently, the chosen Si source was applied via nutrient solution or via leaf to verify if it is efficient in alleviating the effects caused by K deficiency. To that end, a completely randomized 2 x 3 factorial design was used, with two levels of K: deficient (0.2 mmol L− 1 of K) and sufficient (6 mmol L− 1 of K); and Si: via nutrient solution (2 mmol L− 1 of Si) or foliar spray (5.4 mmol L− 1 of Si) and control (0 mmol L− 1 of Si). In the first experiment, foliar spraying with sodium silicate and stabilized potassium at a concentration of 5.4 mmol L− 1 was better in favoring the physiology of bean plants. In the second experiment, K deficiency without the addition of Si compromised the plant's growth. Si applied through nutrient solution or foliar spray relieved K deficiency stress, increasing chlorophylls and carotenoids content, photosynthetic activity, water use efficiency and vegetative growth.

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