scholarly journals Varietal Differences in High Temperature-induced Flowering Retardation and Repression of Florigen Gene FTL3 in Summer-to-autumn-flowering Small-flowered Spray-type Chrysanthemums

2019 ◽  
Vol 18 (4) ◽  
pp. 381-390 ◽  
Author(s):  
Yoshio Mori ◽  
Yoshihiro Nakano ◽  
Yuki Hayashi ◽  
Shigekazu Takahashi ◽  
Tamotsu Hisamatsu ◽  
...  
1865 ◽  
Vol 24 (1) ◽  
pp. 191-205 ◽  
Author(s):  
Alexander Buchan

A brief account of the weather of this period as regards temperature was read before the Royal Society last year. It was drawn up at the request of Professor Balfour, to accompany his paper “On the Remarkable State of Vegetation in the Edinburgh Botanic Garden in December 1863.”From the 26th of October to the end of December the weather was in every way remarkable. Though frost occurred in the end of October and beginning of November it was not severe, and the temperature continued on the whole seasonable till the 12th of November. From this date till the end of the month it ranged unprecedently high, being 9° above the average temperature of the season. It then fell for the next ten days, but on no occasion below the average; and again rose considerably above the average during the week ending with the 18th of December. Under this genial weather vegetation in the open air advanced rapidly to a state of forwardness not usually seen till the month of March. In December 245 plants were in flower in the Gardens in the open air, and of these 35 were spring flowers. The frost which had occurred was insufficient to damage, to any material extent, 210 autumn-flowering plants; and the high temperature of November, which was as high as what ordinarily occurs in the beginning of May, brought the spring flowers prematurely into bloom, so that there was to be seen the rare spectacle of sweet peas and hepaticas flowering together.


2015 ◽  
Vol 17 (3) ◽  
pp. 105-114
Author(s):  
Makoto Sakai ◽  
Katsunori Tamura ◽  
Satoshi Morita ◽  
Tomomori Kataoka ◽  
Yasuaki Tamura

2013 ◽  
Vol 12 (1) ◽  
pp. 67-74
Author(s):  
Takahiro Tanigawa ◽  
Toshihiro Kunitake ◽  
Takatoshi Matsuno ◽  
Asuka Yamada ◽  
Takuro Suyama ◽  
...  

1969 ◽  
Vol 9 (36) ◽  
pp. 23
Author(s):  
JP Evenson

Widespread occurrence in cotton of 'parrot beaked' bolls, with one or more locule empty of seed, was shown to be related to periods when anthesis takes place under conditions of high temperature and water stress. Marked sowing date effects were recorded ; cotton sown in March and April having significantly lower percentage of parrot beaked bolls than cotton sown in December. Significant varietal differences in amount of the phenomenon were also recorded. The relationship between anther contabescence, and subsequent development of the parrot beaked condition, was clearly shown, and the effects of parrot beaked bolls on yield is discussed. Limited tests of lint quality showed no difference between lint from normal and parrot beaked bolls.


1995 ◽  
Vol 22 (6) ◽  
pp. 927 ◽  
Author(s):  
PJ Stone ◽  
ME Nicolas

Short periods of very high temperature (> 35�C) are common in many of the world's wheat growing areas and can be a significant factor in reducing yield and quality of wheat. This study was designed to determine the stage at which grain growth is most sensitive to a short period of high temperature and to examine whether varietal differences in heat tolerance are expressed throughout the whole grain-filling period. Two varieties of wheat differing in heat tolerance (cvv. Egret and Oxley) were exposed to a short (5 days) period of very high temperature (40�C max. for 6 h each day) at 5-day intervals throughout grain filling, starting from 15 days after anthesis (DAA) and concluding at 50 DAA. Responses of grain dry matter accumulation and water content to high temperature were monitored throughout grain filling, and the results compared with controls maintained at 21/16�C day/night. Varietal differences in heat tolerance were expressed throughout the grain-filling period. Mature individual kernel mass was most sensitive to heat stress applied early in grain filling and became progressively less sensitive throughout grain filling, for both varieties. Reductions in mature kernel mass resulted primarily from reductions in duration rather than rate of grain filling.


2005 ◽  
Vol 74 (2) ◽  
pp. 115-120 ◽  
Author(s):  
Hisashi Yamada ◽  
Masashi Kamio ◽  
Shoji Amano

Author(s):  
M.S. Grewal ◽  
S.A. Sastri ◽  
N.J. Grant

Currently there is a great interest in developing nickel base alloys with fine and uniform dispersion of stable oxide particles, for high temperature applications. It is well known that the high temperature strength and stability of an oxide dispersed alloy can be greatly improved by appropriate thermomechanical processing, but the mechanism of this strengthening effect is not well understood. This investigation was undertaken to study the dislocation substructures formed in beryllia dispersed nickel alloys as a function of cold work both with and without intermediate anneals. Two alloys, one Ni-lv/oBeo and other Ni-4.5Mo-30Co-2v/oBeo were investigated. The influence of the substructures produced by Thermo-Mechanical Processing (TMP) on the high temperature creep properties of these alloys was also evaluated.


Author(s):  
B. J. Hockey

Ceramics, such as Al2O3 and SiC have numerous current and potential uses in applications where high temperature strength, hardness, and wear resistance are required often in corrosive environments. These materials are, however, highly anisotropic and brittle, so that their mechanical behavior is often unpredictable. The further development of these materials will require a better understanding of the basic mechanisms controlling deformation, wear, and fracture.The purpose of this talk is to describe applications of TEM to the study of the deformation, wear, and fracture of Al2O3. Similar studies are currently being conducted on SiC and the techniques involved should be applicable to a wide range of hard, brittle materials.


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