Actinidia chinensis with those of fruit from autotetraploids produced by colchicine-induced chromosome doubling. Our aim was to determine the effects of increasing the number of genomes on fruit quality and development using a number of easily measured
Jin-Hu Wu, A. Ross Ferguson, Brian G. Murray, Alison M. Duffy, Yilin Jia, Canhong Cheng, and Philip J. Martin
Tessa M. Mills, Jianming Li, and M. Hossein Behboudian
are presented in Fig. 1 . Fig. 1. Midday air temperature and relative humidity in the glasshouse where vines of Actinidia chinensis were grown and exposed to reduced irrigation. Plant water use. During Phase 2, total plant
Clint Wall, William Dozier, Robert C. Ebel, Bryan Wilkins, Floyd Woods, and Wheeler Foshee III
and Discussion Actinidia chinensis: ‘Golden Sunshine’ and ‘Golden Dragon’. Dormant bud rest was completed, as indicated by maximum budbreak, with 700 h of chilling for ‘Golden Sunshine’ ( Fig. 1 ). The maximum number of flowers that developed
Jinquan Feng, Andrew V. McGlone, Mike Currie, Chris J. Clark, and Bob R. Jordan
‘Hort16A’ ( Actinidia chinensis Planch. var. chinensis ) is a yellow-fleshed kiwifruit cultivar that is marketed globally as ZESPRI® GOLD kiwifruit. SSC at harvest is an indicator of fruit maturity, and DM content reflects the potential SSC at
Michael S. Reid, David A. Heatherbell, and Harlan K. Pratt
Chinese gooseberry fruits or “kiwifruit” (Actinidia chinensis Planchon, cv. Bruno) were harvested for analysis at intervals throughout the season. On a fresh weight basis, immature fruit contained high concentrations of starch which was hydrolyzed after the fruit reached full size. Concurrently, there was a rapid increase in the concentrations of sucrose, glucose, and fructose, which were the major sugars present. This increase was reflected in a linear rise in soluble solids content of the fruit. Malic and quinic acid concentrations decreased during the early part of fruit growth, rose to a maximum after the fruit reached full size, and then declined slightly. The concentration of citric acid rose linearly during fruit growth, then fell gradually after the fruit reached full size. Ascorbic acid and amino nitrogen concentrations fell during the early part of fruit development, then remained relatively constant. The relationships between patterns of chemical change and the triple sigmoid growth curve of this fruit are discussed.
Ashley K. Brantley, James D. Spiers, Andrew B. Thompson, James A. Pitts, J. Raymond Kessler Jr., Amy N. Wright, and Elina D. Coneva
cultivar to be traded globally was Actinidia chinensis Planch. ‘Hort16A’ ( Patterson et al., 2003 ). This gold-fleshed cultivar has the closest resemblance to A. deliciosa and has had much success commercially. ‘Hort16A’ was noted as being more
Hongwen Huang, Shengmei Wang, Renhuang Huang, Zhengwang Jiang, and Zhonghui Zhang
'Jintao' is a new yellow-fleshed kiwifruit (Actinidia chinensis Planch) developed from the breeding program at the Wuhan Institute of Botany (WIB), in Wuhan, Hubei, People's Republic of China. 'Jintao' is a midseason cultivar that ripens three to four weeks before the standard commercial cultivar [A. deliciosa (A. Chev.) C.F. Liang et A.R. Ferguson] 'Hayward'. It is sweeter than 'Hayward' and has a smooth skin. 'Jintao' was selected from A. chinensis and offers growers in warmer climates an alternative to 'Hayward', because of its higher productivity, better fruit quality, and improved heat tolerance. 'Jintao', which means golden peach in Chinese, is named in recognition of its yellow flesh and the common Chinese name, Mihou-tao, or monkey peach.
Fouad M. Basiouny
Kiwifruits at 3 stages of ripening were stored at 3°C for 4 weeks to study the effect of cold storage on ethylene production and fruit quality. Samples taken weekly were analyzed for firmness, TSS, acidity, tissue chlorophyll and carbohydrate contents. Fruits at early stage of ripening (hard) produced less ethylene than fruits at late ripening stage (soft). Fruit quality attributes vary significantly among the different ripening stages and storage intervals.
Shaoli Lu and Mark Rieger
One-year-old kiwifruit [Actinidia deliciosa (A. Chev.) C.F. Liang et R. Ferguson var. deliciosa] vines were grown under 8- and 16-hour photoperiods to study the influence of photoperiod on cold acclimation and determine the potential level of hardiness that young vines attain. Vines were acclimated by reducing growth chamber temperature at 2-week intervals, beginning at 31/20C (16 hours/8 hours) and ending with 15/5C after 8 weeks. Vines receiving an 8-hour photoperiod were more cold hardy than vines receiving a 16-hour photoperiod after 4 weeks of acclimation as determined by electrolyte leakage from stem tissues. Moreover, vines receiving an 8-hour photoperiod survived freezing at – 9C at the end of the 8-week acclimation period, whereas those receiving a 16-hour photoperiod were killed at – 6C. Vine survival and electrolyte leakage of sterns were highly correlated (r = – 0.79 to – 0.90).
Tingting Zhao, Dawei Li, Lulu Li, Fei Han, Xiaoli Liu, Peng Zhang, Meiyan Chen, and Caihong Zhong
cultivars are selections of natural Actinidia chinensis and Actinidia deliciosa from China ( Ferguson and Huang, 2007 ). Compared with other fruit trees, limited information is available about the effects of temperature on the chilling requirement in the