scholarly journals Fundamental growth response to fertilizer in rice plants. I. Varietal difference in the growth rate at the seedling stage.

1990 ◽  
Vol 59 (3) ◽  
pp. 426-434 ◽  
Author(s):  
Hiroshi EHARA ◽  
Mikio TSUCHIYA ◽  
Tatsuo OGO
Keyword(s):  
Growth Rate ◽  
Growth Response ◽  
Seedling Stage ◽  
Varietal Difference ◽  
Rice Plants

scholarly journals Fundamental growth response to fertilizer in rice plants. II. Types of the fundamental growth response at seedling stage.

1990 ◽  
Vol 59 (3) ◽  
pp. 435-442 ◽  
Author(s):  
Mikio TSUCHIYA ◽  
Hiroshi EHARA ◽  
Tatsuo OGO
Keyword(s):  
Growth Response ◽  
Seedling Stage ◽  
Rice Plants

scholarly journals Varietal Difference in Pre-germination Flooding Tolerance and Waterlogging Tolerance at the Seedling Stage in Maize Inbred Lines.

2002 ◽  
Vol 71 (3) ◽  
pp. 361-367 ◽  
Author(s):  
Yoshiro MANO ◽  
Masanori MURAKI ◽  
Toshinori KOMATSU ◽  
Masahiro FUJIMORI ◽  
Fumiaki AKIYAMA ◽  
...  
Keyword(s):  
Inbred Lines ◽  
Seedling Stage ◽  
Varietal Difference ◽  
Flooding Tolerance ◽  
Waterlogging Tolerance ◽  
Maize Inbred Lines

Trichostrongylosis and wool growth. 2. The wool growth response of infected sheep to parenteral and duodenal cystine and cysteine supplementation

1973 ◽  
Vol 13 (63) ◽  
pp. 351 ◽  
Author(s):  
IA Barger ◽  
WH Southcott ◽  
VJ Williams
Keyword(s):  
Growth Rate ◽  
Growth Rates ◽  
Growth Response ◽  
Infected Sheep ◽  
Trichostrongylus Colubriformis ◽  
Intestinal Nematode ◽  
Wool Growth ◽  
Cysteine Hydrochloride ◽  
Significant Difference ◽  
Maintenance Ration

Two experiments are reported. In experiment 1, light infections with the intestinal nematode Trichostrongylus colubriformis reduced wool growth of sheep by 42 per cent compared with pair-fed controls. There was no significant difference in wool growth between those sheep given a cystine supplement as an intraperitoneal pellet and those given a daily intra-duodenal injection of cystine, although cystine was poorly absorbed from the peritoneal cavity. In experiment 2, fifteen sheep were fed a maintenance ration and their wool growth rates defined. When six of the sheep were given a daily intra-duodenal drip containing 2 g cysteine hydrochloride, and six sheep were given the same drip intravenously, their wool growth rate increased by a mean of 33 per cent compared with the wool growth of the three untreated sheep, irrespective of the route of administration of the cysteine. Three sheep in each group of six were then lightly infected with Trichostrongylus colubriformis and the wool production of all sheep was measured in the presence and absence of the daily cysteine supplement via the two routes. The infection depressed wool growth, but did not influence the wool growth response to either route of cysteine supplementation. It was concluded that the reduced wool growth induced by trichostrongylosis could not be attributed to malabsorption of cysteine. Evidence was obtained that sheep resistant to Trichostrongylus colubriformis produced less wool when subjected to a larval challenge.

scholarly journals GROWTH SUBSTANCE CURVATURES OF AVENA IN LIGHT AND DARK

1936 ◽  
Vol 20 (2) ◽  
pp. 283-309 ◽  
Author(s):  
J. Van Overbeek
Keyword(s):  
Growth Hormone ◽  
Growth Rate ◽  
Growth Response ◽  
Growth Substance ◽  
Continuous Exposure ◽  
Growth Responses ◽  
Section 8 ◽  
Oxidative Inactivation

An attempt has been made to analyze the base response, one of the light growth responses of Avena coleoptiles, by means of growth substance curvatures. The decrease in growth rate (first part of the base response) after exposure to light does not show if hetero-auxin is substituted for auxin-a (Sections 5, 6, and 10). This decreased growth after exposure very likely is due to an oxidative inactivation of auxin-a (Sections 8 and 9). Hetero-auxin can be inactivated too but in a much lesser degree than auxin-a (Section 9). The increase in growth rate following on the decreased growth (second part of the base response) is due to an increase in response of the plant to growth hormone which is independent of the type of hormone (Sections 1, 2, 7, 8, and 10). Under conditions of continuous exposure to light, however, the inactivation of the auxin-a under influence of the light is superimposed on this increased response to growth hormone. This inactivation can be eliminated from the light growth response by replacing the auxin-a by hetero-auxin. More detailed information on this subject can be found in Section 10. A review of the experiments and their results can be obtained from the scheme in Section 8. In Section 11 it is shown that light inhibits the formation of growth hormone in the decapitated coleoptile (regeneration). Very small amounts of light (25 m.c.s.) inhibit the regeneration markedly.

scholarly journals Physiological and growth response of rice plants (Oryza sativa L.) to Trichoderma spp. inoculants

AMB Express ◽  
2014 ◽  
Vol 4 (1) ◽  
Author(s):  
Febri Doni ◽  
Anizan Isahak ◽  
Che Radziah Che Mohd Zain ◽  
Wan Mohtar Wan Yusoff
Keyword(s):  
Oryza Sativa ◽  
Growth Response ◽  
Oryza Sativa L ◽  
Trichoderma Spp ◽  
Rice Plants

Isozyme variation, morphology, and growth response to temperature in Pythium ultimum

1996 ◽  
Vol 74 (5) ◽  
pp. 753-761 ◽  
Author(s):  
D. J. S. Barr ◽  
S. I. Warwick ◽  
N. L. Désaulniers
Keyword(s):  
Growth Rate ◽  
Growth Response ◽  
Effective Means ◽  
Pythium Ultimum ◽  
Morphological Characters ◽  
Isozyme Analysis ◽  
Isozyme Variation ◽  
Different Temperatures ◽  
Isozyme Loci ◽  
Response To Temperature

A worldwide collection of 60 isolates of Pythium ultimum and 37 asexual (sexually sterile) isolates presumed to be P. ultimum were compared by isozyme analysis, morphological characters, and their growth rate at different temperatures. Isolates were separated into 10 multilocus genotypes as defined by nine isozyme loci. Five genotypes (U1–U5) comprising 85 isolates differed from each other merely by homo- or hetero-zygous states at one and (or) two loci. Four isolates in genotype U6 produced zoospores and were presumed to be var. sporangiiferum. They differed at one locus from genotypes U1–U5. Genotypes U7, U8, U9, and U10 differed from U1–U5 at one, two, three, and five loci, respectively. Sexual isolates occurred in genotypes U1–U3 and U6–U10, and asexual isolates in genotypes U2–U6. Only minor differences were detected in morphology in six isolates (genotypes U8–U10). A single isolate (genotype U10) differed in growth rate from all others. Isozyme analysis is an effective means of distinguishing P. ultimum from nine other species included for comparative purposes and for identifying asexual isolates that cannot be positively identified by morphology. Keywords: Pythium ultimum var. ultimum, Pythium ultimum var. sporangiiferum, isozymes.

Sign in / Sign up

Export Citation Format

Share Document