نتایج جستجو برای: leaf size
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velvetleaf (abutilon theophrasti) is one of the most important weeds of soybean fields in golestan province. a field experiment was conducted in gorgan agricultural research station in 2007 to determine the critical period for velvetleaf control in williams soybean (glycine max (l.) merr.) cultivar using a randomized complete block design with 4 replications. treatments were included two sets o...
A deterministic algorithm for building the majority rule consensus tree of an input collection of conflicting phylogenetic trees with identical leaf labels is presented. Its worst-case running time is O(nk), where n is the size of the leaf label set and k is the number of input phylogenetic trees. This is optimal since the input size is Ω(nk). Experimental results show that the algorithm is fas...
Leaf size influences many aspects of tree function such as rates of transpiration and photosynthesis and, consequently, often varies in a predictable way in response to environmental gradients. The recent development of panAmazonian databases based on permanent botanical plots has now made it possible to assess trends in leaf size across environmental gradients in Amazonia. Previous plot-based ...
The ch4 mutant of sweetclover (Melilotus alba) has previously been demonstrated to be temperature- and photoperiod-sensitive for the accumulation of chlorophyll. Pigment content of ch4 mutant leaves was examined as a function of trifoliolate mass, an index of leaf development. Inhibition of chlorophyll accumulation caused by increased growth temperature or decreased photoperiod can be attenuate...
HE segregation of continuous F, distributions has been demonstrated on the character cotyledon size in Part I “Monohybrid segregation” in WEBER (1959). The same methods were applied to the character primary leaf size for the parents and the F,, the single measurements length (insertion to tip) = x4 and area = x5 being used. Figure 1 shows the average sizes of hypocotyl, cotyledon and primary le...
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