PubAg

Main content area

Search

5  Search Results

1 - 5 of 5
Number of results to display per page

Search Results

1. Flowering and heat requirements of four olive cultivars grown in the south of Tunisia

Author:
Zouari, I.; Mezghani, A.; Labidi, F.
Source:
Acta horticulturae 2017 no.1160 pp. 231-236
ISSN:
0567-7572
Subject:
climate; cold treatment; cultivars; flowering date; global warming; heat; heat sums; olives; phenology; spring; temperature; Mediterranean region; Tunisia
Abstract:
... Olive phenology is a sensitive indicator of climate change and especially the climatic warming of areas where olives are grown. Flowering occurs after being exposed to chilling and subsequent accumulation. The Mediterranean region is characterized by a changeable climate, especially in spring when temperature varies quickly from year to year. In this context, a study was carried out on local ('Mes ...
DOI:
10.17660/ActaHortic.2017.1160.34

2. Modeling apple bloom phenology

Author:
Chaves, B.; Salazar, M. R.; Schmidt, T.; Dasgupta, N.; Hoogenboom, G.
Source:
Acta horticulturae 2017 no.1160 pp. 201-206
ISSN:
0567-7572
Subject:
apples; buds; cultivars; fruits; growing season; heat sums; mathematical models; model validation; orchards; phenology; temperature; trees; Washington (state)
Abstract:
... Detailed information about apple phenology allows a grower to manage the orchard efficiently and to decide how many fruits per tree harvest. In general, eight stages have been identified for apple development starting with green tip until petal fall. Mathematical models can be developed to predict crop phenological stages. The objective of this study was to model apple phenology as a function of t ...
DOI:
10.17660/ActaHortic.2017.1160.29

3. Modeling fruit growth of apple

Author:
Chaves, B.; Salazar, M. R.; Schmidt, T.; Dasgupta, N.; Hoogenboom, G.
Source:
Acta horticulturae 2017 no.1160 pp. 335-340
ISSN:
0567-7572
Subject:
apples; cultivars; environmental factors; equations; flowering; fruits; growing season; heat sums; orchards; prediction; statistical models; temperature; trees; Washington (state)
Abstract:
... Fruit growth of an individual apples starts after petal and is affected by different environmental factors and orchard and tree management. Prediction of fruit size is critical for management and to prepare for postharvest processing and the logistics. The objective of this study was to develop a model to predict growth of an individual apple fruit as a function of the physiological time using cum ...
DOI:
10.17660/ActaHortic.2017.1160.48

4. Modeling spring phenology and chilling requirements using the chill overlap framework

Author:
Pope, K. S.; DeJong, T. M.
Source:
Acta horticulturae 2017 no.1160 pp. 179-184
ISSN:
0567-7572
Subject:
Prunus dulcis; almonds; climate; climate change; crops; cultivars; frost; heat; models; orchards; ovules; phenology; prediction; risk; spring; temperature; California
Abstract:
... The timing of bloom and leaf-out has important implications for orchard systems. As temperatures continue to shift under climate change, it is important to be able to accurately model the impact of these changes on the timing of spring phenological events. Changing temperatures may impact cultivars differently, and interfere with pollinizer variety bloom overlap. Bloom windows may shift later or e ...
DOI:
10.17660/ActaHortic.2017.1160.26

5. Peach cell number and size is affected by crop load and cultivar

Author:
Reighard, G. L.; Souza, F. B. M.; Pio, R.
Source:
Acta horticulturae 2017 no.1160 pp. 357-360
ISSN:
0567-7572
Subject:
computer software; cultivars; developmental stages; fruit set; genetics; mesocarp; peaches; ripening; temperature; trees
Abstract:
... Peach fruit development is impacted by crop load, cultivar genetics, and temperature during the Phase I growth stage after fruit set. Four peach cultivars, 'Carored', 'Summerprince', 'Scarletprince' and 'Redhaven', ripening from mid-May to early July were selected for fruitlet sampling every 5 days from week 2 to week 5 post-bloom. Fruitlets were collected mid-shoot, 1.5 m above ground, from the e ...
DOI:
10.17660/ActaHortic.2017.1160.51