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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 developmental growth stages in mango on the basis of absolute vs. relative growth rates

Author:
Dambreville, A.; Normand, F.; Lauri, P. E.; Guedon, Y.
Source:
Acta horticulturae 2017 no.1160 pp. 69-74
ISSN:
0567-7572
Subject:
cultivars; developmental stages; inflorescences; leaves; mangoes; models; phenology; plant development; plant growth
Abstract:
... Plant development, the change in plant structure, and growth, the increase of organ size over time are often studied as two separate processes. The concept of developmental growth stages has been recently proposed in mango to integrate both morphological traits and growth measurements. These stages rely on a strong match between developmental (i.e., phenological) stages and growth stages deduced f ...
DOI:
10.17660/ActaHortic.2017.1160.10

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