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^ШХР: *http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1445-6664 /issues (http://onlinelibr)
^АВТ: Ichihara M.; Uchida S.; Fujii S.; Yamashita M. ; Sawada H.; Inagaki H.
^ЗГЛ: Weed seedling herbivory by field cricket Teleogryllus emma (Orthoptera: Gryllidae) in relation to the depth of seedling emergence [Изучение поедаемости проростков плевела многоцветкового сверчком Teleogryllus emma (Orthoptera: Gryllidae) в зависимости от глубины появления всходов. (Япония)]
^ВЫХ: Weed Biology & Management, 2014; Vol.14,N 2. - P. 99-105
^ДАТ: 2014
^ПРМ: Bibliogr.:p.104-105
+Реферат:

^РЕФ: This study aimed to determine whether seedling herbivory by the field cricket, Teleogryllus emma (Ohmachi et Matsuura), promoted the mortality of Italian ryegrass (Lolium multiflorum Lam.), a non-native grass weed in Japan, whether the impact of seedling herbivory differed depending on the depth of seedling emergence and the influence of cricket density on seedling mortality. First, the seedlings at emergence depths of 0, 1 and 2 cm were exposed to the cricket for 2 days in plastic cups and the amount of seedling mortality by herbivory was calculated. The level of mortality of 60 seedlings that emerged from seeds on the soil surface was 92.4%, significantly higher than that of the seedlings that emerged from seeds at depths of 1 cm (10.8%) and 2 cm (9.6%). Second, the seedlings at the emergence depths of 0 and 1 cm were exposed to the crickets at four different densities (zero, one, two and three individuals per 5700 cm2) for 5 days in plastic containers and the amount of seedling mortality by herbivory was calculated. The level of mortality by herbivory of the seedlings that emerged from 100 seeds on the soil surface was higher (33.3-61.3%) than that of the seedlings that emerged from seeds at a depth of 1 cm (4.7-13.1%) in the containers with one-to-three crickets. The level of seedling mortality tended to increase with an increasing cricket density. These results suggest that seedling herbivory by crickets is an important factor in weed mortality, particularly in no-till fields and in field margins, where the seeds are more prevalent near the soil surface. aref1

^TRN: 1648084
^ВИД: Статья из книги
^ЯЗК: Английский
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