نتایج جستجو برای: damaged seeds

تعداد نتایج: 74369  

2009
Yoriko Yanakawa

In April 2007, an Economic Commission for Latin America and the Caribbean (ECLAC) assessment mission estimated that more than 400,000 hectares of cultivated area had been damaged or lost affecting the food security of thousands of subsistence farmers. Thousands of rural communities that lost all their crops did not have sufficient seeds for the next sowing season. A CEPAL mission calculated tha...

1999
Michael Felice Mouafak Tourojman Craig Rogers

Ectopic splenic tissue may be congenital or acquired. Splenules can result from trauma or, less frequently, splenectomy, in which splenic parenchyma seeds accessible tissue to subsequently develop ectopic splenic tissue. This process of auto-transplantation is known as splenosis. Splenosis is a rare, benign condition most often found incidentally on imaging.1 Here, we describe a patient with a ...

2015
Aaron B. Shiels Donald R. Drake

Mammalian herbivores can limit plant recruitment and affect forest composition. Loulu palms (Pritchardia spp.) once dominated many lowland ecosystems in Hawai'i, and non-native rats (Rattus spp.), ungulates (e.g. pigs Sus scrofa, goats Capra hircus) and humans have been proposed as major causes of their decline. In lowland wet forest, we experimentally determined the vulnerability of seeds and ...

Journal: :Annals of botany 2008
Patricia Berjak N W Pammenter

BACKGROUND Considered only in terms of tolerance of, or sensitivity to, desiccation (which is an oversimplification), orthodox seeds are those which tolerate dehydration and are storable in this condition, while highly recalcitrant seeds are damaged by loss of only a small proportion of water and are unstorable for practical purposes. Between these extremes, however, there may be a gradation of...

2018
Hamid Bakhshabadi HabibOllah Mirzaei Alireza Ghodsvali Seid Mahdi Jafari Aman Mohammad Ziaiifar

Application of novel technologies such as microwave and pulsed electric fields (PEF) might increase the speed and efficiency of oil extraction. In the present research, PEF (3.25 kV/cm electric field intensity and 30 pulse number) and microwave (540 W for 180 s) pretreatments were used to study the process of oil extraction from black cumin (Nigella sativa) seeds. After applying the selected pr...

Journal: :Insect biochemistry and molecular biology 2001
C P Silva W R Terra J Xavier-Filho M F Grossi de Sá E M Isejima R A DaMatta F C Miguens T D Bifano

Zabrotes subfasciatus larvae possess three alpha-amylase isoforms as determined by in gel assays following SDS-PAGE. The two minor isoforms present lower electrophoretic mobility than the major form, and seem to occur as a heterodimer. When developed inside Vigna unguiculata (cowpea) seeds, fourth instar larvae have minor quantities of the slow-migrating forms, but when reared on seeds of Phase...

2016
Zbyszek Boratyński Javi Miranda Arias Cristina Garcia Tapio Mappes Timothy A. Mousseau Anders P. Møller Antonio Jesús Muñoz Pajares Marcin Piwczyński Eugene Tukalenko

Radioactivity released from disasters like Chernobyl and Fukushima is a global hazard and a threat to exposed biota. To minimize the deleterious effects of stressors organisms adopt various strategies. Plants, for example, may delay germination or stay dormant during stressful periods. However, an intense stress may halt germination or heavily affect various developmental stages and select for ...

2017
Janaina Costa E Silva Dalmarcia de Sousa Carlos Mourão Fabia Silva de Oliveira Lima Renato de Almeida Sarmento Mateus Sunti Dalcin Raimundo Wagner de Souza Aguiar Gil Rodrigues Dos Santos

The objective of this work was to evaluate the efficiency of noni essential oil on the control of Exserohilum turcicum, a causative agent of Exserohilum spot in maize culture. In the sanitary test 400 seeds were incubated using the blotter test method. For the transmissibility test, the fragments of damaged leaves of seedlings were removed and put into a potato, dextrose and agar (PDA) culture ...

Journal: :Plant physiology 2001
N Thapar A K Kim S Clarke

Protein L-isoaspartyl methyltransferase is a widely distributed repair enzyme that initiates the conversion of abnormal L-isoaspartyl residues to their normal L-aspartyl forms. Here we show that this activity is expressed in developing corn (Zea mays) and carrot (Daucus carota var. Danvers Half Long) plants in patterns distinct from those previously seen in winter wheat (Triticum aestivum cv Au...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید