Results 61 to 70 of about 107,370 (215)

The role of abscisic acid and water relations in drought responses of subterranean clover [PDF]

open access: yes, 1997
The role of water relations and abscisic acid (ABA) in the responses to drought were studied in a mediterranean forage crop, Trifolium subterraneum L. under field conditions.
Chaves, M   +3 more
core   +1 more source

Analyzing Phytohormone Levels in Fruits of Date Palm Phoenix dactylifera L. Derived from Tissue Culture under Different Pollination Treatments

open access: yesMaǧallaẗ al-baṣraẗ al-ʻulūm al-zirāʻiyyaẗ, 2023
This study evaluated three male date palm varieties, namely, Red-Ganami, Red-Ganami + Khakri Al-Adi and Red-Ganami + Al-Canary, in three age of spathes  (early, late and middle) in a private orchard at Al-Seebah district, Basrah province. The plants were
Firas M. Al-Hamoud   +2 more
doaj  

The effects of carboxylic acids on the aqueous dispersion and electrophoretic deposition of ZrO2 [PDF]

open access: yesJournal of the European Ceramic Society, Volume 32, Issue 1, 2012, Pages 235-244, 2013
The agglomeration, electrokinetic properties and electrophoretic deposition behaviour of aqueous suspensions of ZrO2 with carboxylic acid additives were studied in comparison with conventional pH adjustment. It was found that citric acid imparted negative zeta-potential values and electrosteric stabilisation to particles in suspensions at all pH levels.
arxiv   +1 more source

Nature's Starships. I. Observed Abundances and Relative Frequencies of Amino Acids in Meteorites [PDF]

open access: yes, 2014
The class of meteorites called carbonaceous chondrites are examples of material from the solar system which have been relatively unchanged from the time of their initial formation. These meteorites have been classified according to the temperatures and physical conditions of their parent planetesimals.
arxiv   +1 more source

Improvement of seed germination of Fagus orientalis Lipsky [PDF]

open access: yes, 2003
This thesis was seeking two main approaches for improvement of seed germination of oriental beech, a timber producing species in Hyrcanian forests in northern Iran. Germination behavior of beechnuts was enhanced either by decreasing the dormancy breakage
Soltani, Ali
core  

Overexpression of Poplar Pyrabactin Resistance-Like Abscisic Acid Receptors Promotes Abscisic Acid Sensitivity and Drought Resistance in Transgenic Arabidopsis. [PDF]

open access: yesPLoS ONE, 2016
Drought stress is an important environmental factor limiting productivity of plants, especially fast growing species with high water consumption like poplar.
Jingling Yu   +10 more
doaj   +1 more source

Dormancy in wheat grain (Triticum aestivum L.) : studies on grain-coat pigment formation and abscisic acid content during the development of wheat grain of six genotypes : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Botany at Massey University [PDF]

open access: yes, 1978
Dormancy in wheat grain has been associated with red pigmentation of the grain-coats. The development from anthesis to harvest-ripeness of two-white-grained and four red-grained genotypes of varying dormancy was investigated. Grain growth was measured as
Verry, Isabelle Marjorie
core  

Cytological and molecular characteristics of delayed spike development in wheat under low temperature in early spring

open access: yesCrop Journal, 2022
Low temperature in early spring impairs wheat growth and grain yield. However, little is known about the cytological and molecular mechanisms underlying low temperature regulation of wheat spike development.
Xurun Yu   +5 more
doaj  

Suppression of Root Nodule Formation by Artificial Expression of the TrEnodDR1 (Coat Protein of White clover cryptic virus 1) Gene in Lotus japonicus

open access: yesMolecular Plant-Microbe Interactions, 2005
TrEnodDR1 (Trifolium repens early nodulin downregulation 1) encodes a coat protein of White clover cryptic virus 1. Its expression in white clover was down-regulated at the time when root nodules formed.
Mitsumi Nakatsukasa-Akune   +9 more
doaj   +1 more source

Meteoritic Abundances of Fatty Acids and Potential Reaction Pathways in Planetesimals [PDF]

open access: yesIcarus, 2019, 319, 685-700, 2018
The origin of fatty acids on the prebiotic Earth is important as they likely formed the encapsulating membranes of the first protocells. Carbon-rich meteorites (i.e., carbonaceous chondrites) such as Murchison and Tagish Lake are well known to contain these molecules, and their delivery to the early planet by intense early meteorite bombardments ...
arxiv   +1 more source

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