Influence of pollination methods on fruit development, fruit yield and oil quality in oil tree peony

2022 ◽  
Vol 295 ◽  
pp. 110877
Author(s):  
Kaiyue Zhang ◽  
Chunling He ◽  
Shuaibing Wang ◽  
Xiaogai Hou
Keyword(s):  
Fruit Development ◽  
Oil Quality ◽  
Fruit Yield ◽  
Tree Peony ◽  
Pollination Methods

scholarly journals Nitrogen Stimulated Increases in Peach Yields Are Associated with Extended Fruit Development Period and Increased Fruit Sink Capacity

1997 ◽  
Vol 122 (6) ◽  
pp. 772-777 ◽  
Author(s):  
J.L. Saenz ◽  
T.M. DeJong ◽  
S.A. Weinbaum
Keyword(s):  
Growth Rates ◽  
Fruit Development ◽  
Dry Mass ◽  
N Fertilization ◽  
Fruit Growth ◽  
Fruit Yield ◽  
Growth Potential ◽  
Fresh Mass ◽  
Development Period ◽  
Sink Capacity

This study was designed to characterize the mechanisms of N-stimulated peach Prunus persica (L.) Batsch productivity. The effects of N fertilization on potential assimilate availability (source capacity) and on the growth capacity of individual fruit (sink capacity) were assessed. On heavily thinned trees, fertilization did not stimulate fruit growth rates relative to those on nonfertilized trees, suggesting that fruit growth rates were not assimilate-limited throughout the period of fruit development. However, N fertilization resulted in a longer fruit development period and increased the growth potential of individual fruit by 20% (fresh mass) and 15% (dry mass) vs. controls. In unthinned trees, N fertilization increased total fruit yield by 49% (fresh mass) and 40% (dry mass) compared to the unthinned, nonfertilized controls. N fertilization increased total fruit yield per tree in unthinned peach trees by extending the fruit development period and thus increasing the amount of assimilate accumulated for fruit growth. The fruit development period was prolonged both by assimilate deprivation associated with increasingly higher crop loads and by N fertilization. Thus, the prolongation of the peach fruit development period by N-fertilization appears inconsistent with the role of N in increasing assimilate availability for fruit growth. We conclude that N fertilization stimulates peach yields by increasing the period for fruits to use assimilates (sink capacity). The effect of N on assimilate availability was not directly evaluated. The timing of fertilizer N availability did not influence fruit growth potential.

scholarly journals Olive Fruit Development and Ripening: Break on through to the “-Omics” Side

2021 ◽  
Vol 22 (11) ◽  
pp. 5806
Author(s):  
Christina Skodra ◽  
Vaia Styliani Titeli ◽  
Michail Michailidis ◽  
Christos Bazakos ◽  
Ioannis Ganopoulos ◽  
...  
Keyword(s):  
Fruit Development ◽  
Oil Quality ◽  
Olive Tree ◽  
Fruit Trees ◽  
Perennial Crop ◽  
Crop Species ◽  
Olive Fruit ◽  
Complex Process ◽  
Fruit Development And Ripening ◽  
Analytical Tools

The olive tree (Olea europaea L. subsp. europaea) is the most important perennial crop in the Mediterranean region, producing table olives and oil, both appreciated for their nutraceutical value. Although olive oil quality traits have been extensively studied, much less attention has been paid to olive drupe. Olive drupe ripening is an extremely complex process involving numerous physiological and molecular changes that are unique in this fruit crop species. This review underlines the contribution of “-omics” techniques and of the recent advances in bioinformatics and analytical tools, notably next-generation sequencing and mass spectrometry, for the characterization of the olive ripening syndrome. The usage of high-dimensional datasets, such as transcriptomics, proteomics, and metabolomics, will provide a systematical description of the molecular-specific processes regulating olive fruit development and ripening. However, the incomplete sequence of the O. europaea L. reference genome has largely hampered the utilization of omics tools towards olive drupe research. Due to this disadvantage, the most reported -omics studies on fruit trees concern metabolomics and only a few transcriptomics and proteomics. In this review, up-to-date applications of -omics technologies towards olive drupe biology are addressed, and future perspectives in olive fruit research are highlighted.

scholarly journals 526 Hydrogen Cyanamide Hastens Fruit Development and Increases Fruit Yield and Berry Size of Blueberry

HortScience ◽  
1999 ◽  
Vol 34 (3) ◽  
pp. 536C-536
Author(s):  
J.G. Williamson ◽  
E.P. Miller
Keyword(s):  
Fruit Development ◽  
Fruit Yield ◽  
Yield Response ◽  
Flower Bud ◽  
North Central ◽  
Hydrogen Cyanamide ◽  
Central Florida ◽  
Berry Size ◽  
Southern Highbush ◽  
The Times

Field-grown `Misty', `Star', and `Southmoon' southern highbush, and `Climax' rabbiteye blueberry plants were sprayed to drip with 0, 7.7 and 15.4 g·L–1 concentrations of hydrogen cyanamide in north central Florida on 17 Dec. 1997 and 6 Jan. 1998. Plants were dormant with slightly swollen flower buds (stage 2) at the times of applications. The extent and earliness of vegetative budbreak were increased by both hydrogen cyanamide sprays. Hydrogen cyanamide also increased mean fruit fresh weights and reduced fruit development periods for `Misty', `Southmoon' and `Climax' but not for `Star'. Yield response to hydrogen cyanamide was variable among cultivars. Fruit yields of `Misty' and `Climax' increased slightly by 7.7 g·L–1 sprays and decreased significantly by 15.4 g·L–1 sprays. In that case, increased fruit yields appeared to be the result of greater mean fruit fresh weights while reduced yields resulted from significant flower bud thinning that occurred at the highest spray concentration. Both hydrogen cyanamide spray concentrations increased fruit yield for `Southmoon' and decreased fruit yield for `Star' when compared to controls. Spray date had no effect on fruit yield and little effect on fruit development period. Hydrogen cyanamide has potential for increasing fruit quality and earliness of some blueberry cultivars that are grown in the lower southeastern United States.

Fruit growth, yield and oil quality changes induced by deficit irrigation at different stages of olive fruit development

2019 ◽  
Vol 212 ◽  
pp. 88-98 ◽  
Author(s):  
Riccardo Gucci ◽  
Giovanni Caruso ◽  
Clizia Gennai ◽  
Sonia Esposto ◽  
Stefania Urbani ◽  
...  
Keyword(s):  
Fruit Development ◽  
Deficit Irrigation ◽  
Oil Quality ◽  
Growth Yield ◽  
Fruit Growth ◽  
Quality Changes ◽  
Olive Fruit

scholarly journals DEVELOPMENT AND ABSCISSION OF 'MAURITIUS' LITCHI FRUITS AND THE DECREASE OF ABSCISSION BY AUXIN 2,4,5-TP.

HortScience ◽  
1992 ◽  
Vol 27 (6) ◽  
pp. 596a-596
Author(s):  
R.A. Stern ◽  
S. Gazit
Keyword(s):  
Fruit Development ◽  
Fruit Yield ◽  
Naked Eye ◽  
Rapid Replacement ◽  
Marketable Fruit ◽  
Litchi Fruit ◽  
Second Wave ◽  
Female Flowers

The rate of 'Mauritius' litchi fruit development and abscission was studied over three consecutive seasons. Two pronounced abscission waves were observed. The first started at the end of the female bloom and ended about four weeks later. Female flowers abscised at a rate of 85-90% during this period. Most of the abscised fruitlets were devoid of embryo and/or endo-sperm. After a lull of about a week, the second abscission wave began, lasting about two weeks. Approximately 5% of the female flowers survived this wave, Most of the abscised fruit-lets had embryos. The second wave coincided with the period of rapid replacement of endosperm by embryo. Auxin (2,4,5-TP) was very effective in increasing marketable fruit yield when applied during the lull between the two abscission waves, At that time fruitlets weighed about 2 g. A longitudinal cut revealed an embryo already visible to the naked eye, at the micropylar end of the seed cavity.

scholarly journals Foraging Behavior of Honeybees (Apis Mellifera L.) and Ground Bumblebees (Bombus Terrestris L.) and its Influence on Seed Yield and Oil Quality of Oil Tree Peony Cultivar ‘Fengdan’ (Paeonia Ostii T. Hong et J. X. Zhang)

2020 ◽  
Vol 64 (1) ◽  
pp. 131-142
Author(s):  
Chunling He ◽  
Kaiyue Zhang ◽  
Dongbo Han ◽  
Shuaibing Wang ◽  
Xiaogai Hou ◽  
...  
Keyword(s):  
Apis Mellifera ◽  
Seed Yield ◽  
Bombus Terrestris ◽  
Oil Quality ◽  
Visit Time ◽  
Tree Peony ◽  
Flower Visit ◽  
Single Flower ◽  
Bumblebee Pollination

AbstractOil peony (Paeonia spp.) is a new type of woody oil crop in China with a large cultivation area. Inadequate pollination is one of the main reasons for low seed yield. A pollination net room was built at an oil tree peony base, the numbers of honeybees (Apis mellifera L.) and ground bumblebees (Bombus terrestris L.) were artificially increased and the foraging behaviors and daily activities of the two bees on the plants were observed. Four different pollination methods (honeybee pollination, ground bumblebee pollination, natural field pollination and pollination without insects) were applied. The visit interval, single-flower visit time, number of single-flower visits, number of flowers visited per minute and number of stigma contacts were compared. Meanwhile, the effects of honeybee and bumblebee pollination on the oil yield and quality of peony seeds were compared. There were noticeable differences in daily activity between honeybees and ground bumblebees. Significant differences in the single-flower visit time, visit interval and visit frequency were also observed; honeybee and ground bumblebee pollination increased the seed yield of oil tree peony by 78.74% and 31.88%, respectively. Therefore, both honeybees and ground bumblebees are effective pollinators of oil tree peony. These results provide a theoretical basis for further utilization of bee resources for oil tree peony pollination.

scholarly journals Leaf Structural Traits Vary With Plant Size in Even-Aged Stands of Sapindus mukorossi

2021 ◽  
Vol 12 ◽  
Author(s):  
Yunni Chang ◽  
Chaobin Xu ◽  
Hong Yang ◽  
Junxin Zhou ◽  
Weiping Hua ◽  
...  
Keyword(s):  
Leaf Area ◽  
Negative Correlation ◽  
Oil Quality ◽  
Leaf Tissue ◽  
Tree Height ◽  
Plant Size ◽  
Leaf Length ◽  
Fruit Yield ◽  
Research Attention ◽  
Structural Traits

Sapindus mukorossi Gaertn., an important oleaginous woody plant, has garnered increasing research attention owing to its potential as a source of renewable energy (biodiesel). Leaf structural traits are closely related to plant size, and they affect the fruit yield and oil quality. However, plant size factors that predominantly contribute to leaf structural traits remain unknown. Therefore, the purpose of this study was to understand the associations between leaf structural traits and plant size factors in even-aged stands of S. mukorossi. Results showed that leaf length (LL) and leaf area (LA) markedly increased with the increasing diameter at breast height (DBH) and tree height (TH), although other leaf structural traits did not show noticeable changes. Difference in slopes also indicated that the degree of effect of plant size factors on leaf structural traits was in the order of TH > DBH. Leaf structural traits showed no systematic variation with crown width (CW). LA was significantly positively correlated with LL, leaf width (LW), LL/LW, and leaf thickness (LT) and was significantly but negatively correlated with leaf tissue density (LTD) and leaf dry mass content (LDMC). Specific leaf area showed a significantly negative correlation with LT, LDMC, and LTD. LTD showed a significantly positive correlation with LDMC, but a negative correlation with LT. The results were critical to understand the variability of leaf structural traits with plant size, can provide a theoretical foundation for further study in the relationship between leaf structural traits and fruit yield, and regulate leaf traits through artificial management measures to promote plant growth and fruit yield.

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