Results 91 to 100 of about 142,660 (208)

Floral morphology and reproductive biology of medicinal plants: <em>Costus </em>(Costaceae) [PDF]

open access: yesJournal of Medicinal Plants Studies, 2021
Amita Sharma, Stuti Sharma
openaire   +1 more source

Aspects of the biology and ecology of Acyrthosiphon kondoi shinji (Homoptera: Aphididae): a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Biology at Massey University [PDF]

open access: yes, 1977
The biology and ecology of the blue-green lucerne aphid, Acyrthosiphon kondoi Shinji, was studied in the Palmerston North area for one year. Observations on the morphology of the developmental stages and morphs of A. kondoi are presented.
Henderson, Neville Clifford
core  

Physiological and Agronomic Responses of Four Rice Varieties to Drought in the Rainforest. [PDF]

open access: yes, 2019
The present investigation tested the hypothesis that there would be variation in physiological responses to water deficit among rice varieties from different production ecologies, with contrasting tolerance to water deficit under repeated cycle of soil ...
Adegbehingbe, F.T.   +5 more
core   +1 more source

Reproductive and Pollination Characteristics of Three Understory Impatiens Species

open access: yesHorticulturae
Understory flowering plants often face limitations in pollinator availability. This necessitates an investigation of pollination mechanisms and reproductive traits to understand their survival strategies. Floral syndromes, which are critical determinants
Yuxi Xue   +8 more
doaj   +1 more source

How does urbanization affect the reproductive characteristics and ecological affinities of street plant communities?

open access: yesEcology and Evolution, 2019
Anthropogenic activities in urban ecosystems induce a myriad of environmental changes compared with adjacent rural areas. These environmental changes can be seen as series of abiotic and biotic selection filters affecting the distribution of plant ...
James Desaegher   +3 more
doaj   +1 more source

Optimal adult growth of Daphnia in a seasonal environment [PDF]

open access: yes, 1993
1. The cladoceran Daphnia serves as an example of an iteroparous organism, with overlapping generations, that is capable of substantial adult growth. The life history of Daphnia was modelled as the consequence of a series of decisions about allocation of
Gabriel, Wilfried, Taylor, B. E.
core  

Rice root genetic architecture: Meta-analysis from a drought QTL database [PDF]

open access: yes, 2009
During the last 10 years, a large number of quantitative trait loci (QTLs) controlling rice root morphological parameters have been detected in several mapping populations by teams interested in improving drought resistance in rice.
Ahmadi, Nourollah   +7 more
core   +1 more source

Review on Techniques for Plant Leaf Classification and Recognition

open access: yesComputers, 2019
Plant systematics can be classified and recognized based on their reproductive system (flowers) and leaf morphology. Neural networks is one of the most popular machine learning algorithms for plant leaf classification.
Muhammad Azfar Firdaus Azlah   +4 more
doaj   +1 more source

Identification and Characterization of the PEBP Family Genes in Moso Bamboo (Phyllostachys heterocycla). [PDF]

open access: yes, 2019
Moso bamboo is one of the economically most important plants in China. Moso bamboo is a monocarpic perennial that exhibits poor and slow germination. Thus, the flowering often causes destruction of moso bamboo forestry.
Chen, Lei   +10 more
core  

Floral Biology, Breeding System and Conservation Implications for the Azorean Endemic Azorina vidalii (Campanulaceae)

open access: yesPlants
This study investigates the seasonal and floral phenology, breeding strategies, and floral morphology of Azorina vidalii, an Azorean endemic Campanulaceae with hermaphroditic, protandrous flowers, dichogamy and secondary pollen presentation.
Rúben M. Correia Rego   +6 more
doaj   +1 more source

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