Changes in plants following insect attack are referred to as induced responses. These responses are widely viewed as a form of defence against further insect attack. In the current study we explore whether it is possible to make generalizations about induced plant responses given the unpredictability and variability observed in insect-plant interactions. Experiments were conducted to test for c...

Brevipalpus yothersi Baker (Acari: Tenuipalpidae) is reported for the first time on cocoa, Theobroma cacao L. (Malvaceae) in northwestern Peru. Mites were collected from organic cocoa smallholdings September to December 2020 eight localities (three Provinces) of Piura Department. The highest mite population density was found peduncle and epicarps fruits different phenological stages, lowest lea...

Germplasm identification and characterization is an important link between the conservation and utilization of plant genetic resources. Traditionally, species or cultivars identification has relied on morphological characters like growth habit or floral morphology like flower colour and other characteristics of the plant. Studies were undertaken for identification and determination of genetic v...

HE genus Gossypium, a member of the Malvaceae, includes the T species of cultivated cottons. More than IOO species of Gossypium have been described, but recent workers include all the described types in fewer than 20 species (HUTCHINSON and GHOSE 1937; HARLAND 1939). The basic chromosome number in the genus is 13, and all species studied have either 13 or 26 pairs of chromosomes. The cytologica...

Predicting how species' abundances and ranges will shift in response to climate change requires a mechanistic understanding of how multiple factors interact to limit population growth. Both abiotic stress and species interactions can limit populations and potentially set range boundaries, but we have a poor understanding of when and where each is most critical. A commonly cited hypothesis, firs...