scholarly journals Planting Method and Irrigation Rate Influence Vegetative and Reproductive Growth of Peach Planted at High Density

1990 ◽  
Vol 115 (2) ◽  
pp. 207-212 ◽  
Author(s):  
J.G. Williamson ◽  
D.C. Coston
Keyword(s):  
Vegetative Growth ◽  
Fruit Size ◽  
High Density ◽  
Flower Bud ◽  
Reproductive Growth ◽  
Yield Efficiency ◽  
Irrigation Rate ◽  
Growing Seasons ◽  
Planting Method ◽  
Vegetative And Reproductive Growth

Several planting treatments modified vegetative and reproductive growth of young, own-rooted peach (Prums persica) trees evaluated at two levels of irrigation in a high-density orchard (5000 trees/ha). Trees planted in auger holes, narrow herbicide strips, and in fabric-lined trenches, but not those from raised beds, were smaller than control trees set in holes dug with a shovel. After two growing seasons, trees planted in the fabric-lined trenches were smaller and had more flowers per node and greater flower bud densities than trees in other planting treatments. Yield efficiency was greatest for this treatment, although fruit size was small throughout the orchard. Irrigation rates did not affect fruit yield or size. The effects of irrigation rate on vegetative growth were small compared to differences among planting treatments.

scholarly journals Effects of Rootstock, Tree Density and Training System on Early Growth, Yield and Fruit Quality of Blush Pear

HortScience ◽  
2021 ◽  
pp. 1-8
Author(s):  
Lexie McClymont ◽  
Ian Goodwin ◽  
Desmond Whitfield ◽  
Mark O’Connell ◽  
Susanna Turpin
Keyword(s):  
Fruit Quality ◽  
Vegetative Growth ◽  
Fruit Size ◽  
Growth Yield ◽  
Substantial Effect ◽  
Training System ◽  
Tree Density ◽  
High Density ◽  
Marketable Yield ◽  
And Training

Vegetative growth, orchard productivity, fruit quality and marketable yield were evaluated for rootstock (D6, BP1 and Quince A), tree density (741–4444 trees/ha), and training system (Open Tatura trellis, two-dimensional vertical and three-dimensional traditional) effects on young trees of the blush pear cultivar ‘ANP-0131’. ‘ANP-0131’ is a vigorous scion and vegetative growth, precocity, and yield were influenced by the selected rootstocks. Tree density and training system treatments exerted a substantial effect on canopy radiation interception while increasing tree density improved yield. Increasing tree density from 2222 (high density) to 4444 (ultra-high density) trees/ha did not improve cumulative yield. Crop load affected fruit size, such that “marketable” yield (yield of fruit weighing between 150 and 260 g) was greatest for trees on D6 rootstock and trained to Open Tatura trellis at high and ultra-high densities.

scholarly journals First results of an orchard trial with new clonal sweet cherry rootstocks at Holovousy

2011 ◽  
Vol 31 (No. 2) ◽  
pp. 47-57 ◽  
Author(s):  
J. Blažková ◽  
I. Hlušičková
Keyword(s):  
Sweet Cherry ◽  
Fruit Size ◽  
Negative Influence ◽  
Yield Efficiency ◽  
Growing Seasons ◽  
First Results ◽  
Graft Compatibility ◽  
Cherry Rootstocks ◽  
High Yields ◽  
Sweet Cherry Rootstocks

Ten clonal dwarf or semi-dwarf sweet cherry rootstocks were evaluated for 5 growing seasons in a orchard that was established in the spring 1999 at Holovousy within international cherry rootstock trials that are co-ordinated in Europe by the Danish Institute of Plant and Soil Science at Aarslev, Denmark. Lapins cv. was used as a scion tester for all these rootstocks; five of them were also tested by Regina cv. Among the new rootstocks, G 195/5 was evaluated as the most promising for Lapins cv. It produced trees even smaller than P-HL-A or Tabel (Edabriz), with higher yield efficiency and good fruit size. In agreement with the results of earlier experiments, both P-HL-A and Tabel (Edabriz) proved to be quite reliable rootstocks for modern sweet cherry orchards established there. Among the semi-dwarf rootstocks, G 154/7 also seemed to be interesting because of high yields and fruit size. Weiroot 158 was found as relatively the most promising rootstock for Regina cv. On the other hand, the most disappointing results were obtained with the rootstock Weiroot 53 because of its inferior graft compatibility and its negative influence on fruit size. Some of the tested rootstocks significantly changed the time of flowering and the time of fruit ripening. Several relationships between the observed characteristics were found within this study and they are more thoroughly discussed.  

scholarly journals Impact of Repeated Yearly Applications of Prohexadione-Calcium On Vegetative and Reproductive Growth of ‘Golden Delicious’/M.9 Apple Trees

2017 ◽  
Vol 25 (1) ◽  
pp. 47-54 ◽  
Author(s):  
A. Nilgün Atay ◽  
Fatma Koyuncu
Keyword(s):  
Fruit Quality ◽  
Vegetative Growth ◽  
Fruit Set ◽  
Negative Impact ◽  
Apple Trees ◽  
Reproductive Growth ◽  
Node Number ◽  
Golden Delicious ◽  
Vegetative And Reproductive Growth ◽  
Prohexadione Calcium

Abstract Growth retardants have great potential to balance between vegetative and reproductive growth. To assess the effects of prohexadione-calcium (Pro-Ca, Regalis) on reproductive and vegetative growth, return bloom, fruit set, and also fruit quality in ‘Golden Delicious’ apple grafted on M.9 rootstock, an experiment was performed during 2010-2012. The applications of 125 mg dm-3 Pro-Ca on the same trees in each year resulted in a 40-43% shoot length reducing. Internodes length decreased with Pro-Ca at about 30%, while total node number was unaffected. Results indicate that Pro-Ca applications have no effects on tree trunk growth, flowering, yield, fruit set and development. Pro-Ca also didn’t have any negative impact on fruit quality during the three consecutive years. Moreover, Pro-Ca resulted in higher fruit size compared to control in the third year of trial. The results of this experiment clearly suggest that fruit growers can use Pro- Ca for the control of vegetative growth without having any negative effects on fruit quality and yield parameters. Once a full canopy has been achieved, annual shoot growth can be suppressed in the range of 20 to 30 cm with 125 mg dm-3 Pro-Ca treatment in ‘Golden Delicious’ apple trees.

VEGETATIVE AND REPRODUCTIVE GROWTH OF DETERMINATE TOMATOES AS INFLUENCED BY APPLICATIONS OF ETHEPHON, DCIB, NAA AND SADH AT THE SIX-CLUSTER STAGE

1974 ◽  
Vol 54 (4) ◽  
pp. 777-782 ◽  
Author(s):  
J. A. VELIATH ◽  
A. C. FERGUSON
Keyword(s):  
Lycopersicon Esculentum ◽  
Phosphonic Acid ◽  
Fruit Set ◽  
Total Yield ◽  
Fruit Size ◽  
Normal Growth ◽  
Reproductive Growth ◽  
Vegetative And Reproductive Growth ◽  
Potential Use ◽  
Fruit Load

In an attempt to control fruit set and thereby increase fruit size, 2-(chloroethyl) phosphonic acid (ethephon), sodium 2,3-dichloroisobutyrate (DCIB), naphthaleueacetic acid (NAA) and N-dimethylaminosuccinamic acid (SADH) were applied as sprays to plants of the determinate tomato Lycopersicon esculentum Mill. ’Summit’ when fruit was set on six clusters. In comparison, one set of plants was deblossomed manually after the six-cluster stage, and another untreated. Although none of the chemicals provided perfect control of fruit load, NAA (100 ppm), SADH (4,000 ppm) + NAA (100 ppm), DCIB (4,000 ppm) + ethephon (500 ppm) and DCIB (6,000 ppm) were approximately 81, 77, 75 and 73% effective, respectively, in reducing fruit load. However, decreases in fruit load were not accompanied by corresponding increases in fruit size. In all probability, this was due to the impairment of normal growth by the chemicals. Several of the treatments produced substantial increases in early and total yield, by maturing a greater number of fruits and thus may be of potential use to commercial growers.

Effect of paclobutrazol on flower-bud production and vegetative growth in two species of Eucalyptus

1993 ◽  
Vol 23 (4) ◽  
pp. 640-647 ◽  
Author(s):  
A.R. Griffin ◽  
P. Whiteman ◽  
T. Rudge ◽  
I.P. Burgess ◽  
M. Moncur
Keyword(s):  
Vegetative Growth ◽  
Foliar Spray ◽  
Weather Conditions ◽  
Growing Season ◽  
Seed Orchard ◽  
Response Assessment ◽  
Growth Responses ◽  
Flower Bud ◽  
Growing Seasons ◽  
Quality Choice

A series of experiments on field-grown seed-derived trees between 2 and 17 years old demonstrated that the growth regulator paclobutrazol could be used to reduce vegetative growth and enhance flower-bud production in Eucalyptusglobulus Labill. and Eucalyptusnitens (Dean & Maid.) ex Maid. Responses to high levels of trunk injection and collar drenching persisted for up to six growing seasons, yielding both increases in frequency of flowering and heaviness of bud crop. Growth responses were expressed in the immediate growing season, but flowering responses were not evident for another year. Foliar spray treatments reduced vegetative growth in young trees of both species for one growing season, but only the E. globulus showed an associated flowering response. Assessment of seed yield per capsule and subsequent germination tests showed no deleterious effects on seed development or quality. Choice of application method will vary with objective and size of tree. Collar drenching shows the most promise for treating large numbers of seed orchard trees because application time is substantially independent of tree size and weather conditions.

scholarly journals CONTRIBUTION OF CARBON AND NITROGEN RESERVES TO VEGETATIVE AND REPRODUCTIVE GROWTH OF RABBITEYE BLUEBERRY

HortScience ◽  
1991 ◽  
Vol 26 (6) ◽  
pp. 682G-682
Author(s):  
Keith T. Birkhold ◽  
Rebecca L. Darnell
Keyword(s):  
Vegetative Growth ◽  
Growing Season ◽  
Full Bloom ◽  
Reproductive Growth ◽  
Vaccinium Ashei ◽  
Carbon And Nitrogen ◽  
Fruit Maturity ◽  
Leaf Drop ◽  
Vegetative And Reproductive Growth

Partitioning of carbon and nitrogen reserves were examined in two cultivars of rabbiteye blueberries (Vaccinium ashei] differing in their timing of vegetative budbreak relative to floral budbreak. Floral budbreak precedes vegetative budbreak in `Climax', while floral and vegetative budbreak occur concomitantly in `Bonita'. Twenty eight containerized plants from each cultivar were dual labeled in the fall with 105 μCi of 14C02 and 0.6 g of nitrogen enriched with 5% 15N. Plants were grown outdoors throughout the winter and the following growing season. At five dates, beginning 27 days prior to full bloom and ending at fruit maturity, plants were harvested into old shoots, roots, fruit, and vegetative growth. Fall leaf drop accounted for loss of 12% of applied N and 20% of applied 14C. In the first harvest, approximately 73% of the recovered 15N and 50% of the recovered 14C was in the roots for both cultivars. By fruit maturity, approximately 8% of the recovered 15N was in the fruits, 51% in new vegetative growth, and 41% in old shoots and roots. Approximately 1.2% of the recovered 14C was in fruit, 1.5% in vegetative growth, and 97% in old shoots and roots. Data suggest that differences in the timing of vegetative budbreak between these two cultivars do not influence overall partitioning patterns of reserve carbon and nitrogen.

Competition effects and responses to variable numbers of neighbours in two tropical savanna grasses in Venezuela

1995 ◽  
Vol 11 (1) ◽  
pp. 39-52 ◽  
Author(s):  
José Raventós ◽  
Juan F. Silva
Keyword(s):  
Linear Regression ◽  
Vegetative Growth ◽  
Grass Species ◽  
Seasonal Patterns ◽  
Tropical Savanna ◽  
Depressing Effect ◽  
Reproductive Growth ◽  
Species Effects ◽  
Competition Effects ◽  
Vegetative And Reproductive Growth

ABSTRACTIn a garden experiment we monitored tillering and flowering for target plants of two grass species, surrounded by one to five neighbours and compared them with control plants growing alone. We analysed the results using a non-linear regression. The species differed markedly in their seasonal patterns of growth but these differences faded when growing with two or more neighbours. The presence of neighbours had a significant depressing effect on both tillering and flowering in both species. Effects and responses were strongly asymmetrical concerning species and mode of growth. Andropogon semiberbis is in disadvantage against Trachypogon plumosus concerning vegetative growth. However, T. plumosus is strongly affected in its reproductive growth by competition not only from A. semiberbis but also from conspecific neighbours. We conclude that the complexity of interactions between effects and responses as well as vegetative and reproductive growth could have a net result of competitive equivalence or compensating competitive abilities of these two species.

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