Results 91 to 100 of about 838,968 (184)

La planta ideal de yuca para obtener rendimientos máximos [PDF]

open access: yes, 2016
A series of trials were carried out using cassava. Crop growth rate increased with leaf area up to LAI 4; root growth rate increased up to LAI 3-3.5, then declined. LAI is determined by leaf size, leaf formation rate and individual leaf life.
Cock, James H.   +3 more
core  

Agronomic variability in white clover varieties under differing nitrogen application rates

open access: yesJournal of Agriculture and Food Research
White clover (Trifolium repens, L.) incorporation into pasture based ruminant production systems has the potential to increase their economic and environmental sustainability.
Ciara Carroll   +4 more
doaj   +1 more source

Growth Parameters Related to Productivity in Cassava (Manihot Esculenta Crantz) [PDF]

open access: yes, 1980
Dry matter production and distribution to major plant organs were studied by periodic harvests over 12 months in six varieties of cassava with varying b ranching patterns.
Tan, Swee Lian
core  

Non-destructive plant health sensing using absorption spectroscopy [PDF]

open access: yes
The sensor group of the 1988 EGM 4001 class, working on NASA's Controlled Ecological Life Support Systems (CELSS) project, investigated many different plant health indicators and the technologies used to test them.
Bledsoe, Jim   +3 more
core   +1 more source

BrSQE1 and the ethylene signaling pathway suppress cell division to regulate plant size in Chinese cabbage (Brassica rapa subsp. pekinensis)

open access: yesFrontiers in Plant Science
The heading leaves of Chinese cabbage (Brassica rapa L. ssp. pekinensis) represent a critical agronomic trait that serves as the primary economic organ in Chinese cabbage. Leaf morphogenesis, a complex developmental process, is fundamentally regulated by
Rui Yang   +9 more
doaj   +1 more source

Influence of the physical dimension of leaf size measures on the goodness of fit for Taylor's power law using 101 bamboo taxa

open access: yesGlobal Ecology and Conservation, 2019
The mean and variance of ecological measures usually follow a power-law relationship, referred to as Taylor's power law (TPL). Leaves are important organs for photosynthesis, and leaf size is closely related to photosynthetic potential.
Peijian Shi   +8 more
doaj   +1 more source

Brain Weight and Life-Span in Primate Species [PDF]

open access: yes, 1993
In haplorhine primates (tarsiers, monkeys, apes, and humans), there is a significant correlation between brain weight and maximum life-span when the effect of body size is removed.
Allman, John   +2 more
core  

Exploring the limits of crop productivity: A model to evaluate progress [PDF]

open access: yes
The goal was to determine the limits of crop productivity when all environmental constraints were removed. Researchers define productivity as food output per unit of input.
Bugbee, Bruce
core   +1 more source

Growth response to temperature of two maize (Zea mays L.) hybrids with differing levels of cold tolerance : a thesis presented in partial fulfillment of the requirements for the degree of Master of Agricultural Science in Plant Science (Seed Technology), Massey University [PDF]

open access: yes, 1993
Low temperatures are a hazard to maize production especially in high altitude and high latitude areas (Eagles, 1979; Hardacre and Eagles, 1986) where it may cause substantial yield reductions through its accumulated effect on vegetative and reprodutive ...
Mukumbuta, Mwangala Stephen
core  

Reducing size to increase number: a hypothesis for compound leaves

open access: yesIdeas in Ecology and Evolution, 2012
Adaptive advantages of the compound leaf form in flowering plants have so far remained elusive.  A novel idea—proposed here—is that there are no direct advantages; the compound leaf evolved instead as a trade-off of selection in favour of something else:
Lonnie Aarssen
doaj  

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