{"id":1372,"date":"2016-04-24T03:03:24","date_gmt":"2016-04-24T03:03:24","guid":{"rendered":"http:\/\/blogs.oregonstate.edu\/seedproduction\/?p=1372"},"modified":"2016-04-24T03:04:28","modified_gmt":"2016-04-24T03:04:28","slug":"grass-seed-crop-development-advanced-in-back-to-back-years","status":"publish","type":"post","link":"https:\/\/dev.blogs.oregonstate.edu\/seedproduction\/2016\/04\/24\/grass-seed-crop-development-advanced-in-back-to-back-years\/","title":{"rendered":"Grass seed crop growth and development advanced again"},"content":{"rendered":"<p><em>Thomas G. Chastain<\/em><\/p>\n<p>Growth and development of grass seed crops are progressing at a faster rate than is usual for the Willamette Valley as a result of warm winter and spring temperatures in the 2015-16 crop year (Fig. 1).\u00a0 The same pattern was observed in the 2014-15 crop year.\u00a0 These crop years were both much warmer than the average temperatures observed for the region and this is reflected in the growing degree days (base temperature = 5\u00b0C or 41\u00b0F) accumulated during the crop years.<\/p>\n<figure id=\"attachment_1370\" class=\"wp-caption thumbnail aligncenter\" style=\"width: 600px;\">\n    <a href=\"http:\/\/blogs.oregonstate.edu\/seedproduction\/files\/2016\/04\/GDD-comparison.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-1370\" src=\"http:\/\/blogs.oregonstate.edu\/seedproduction\/files\/2016\/04\/GDD-comparison.jpg\" alt=\"Figure 1. Growing degree days (GDD) for the crop year through April 21 at Corvallis, Oregon.\" width=\"600\" height=\"425\" srcset=\"https:\/\/osu-wams-blogs-uploads.s3.amazonaws.com\/blogs.dir\/873\/files\/2016\/04\/GDD-comparison.jpg 916w, https:\/\/osu-wams-blogs-uploads.s3.amazonaws.com\/blogs.dir\/873\/files\/2016\/04\/GDD-comparison-300x213.jpg 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a>\n    <figcaption class=\"wp-caption-text\">Figure 1. Growing degree days (GDD) for the crop year through April 21 at Corvallis, Oregon.<\/figcaption>\n    <\/figure>\n<p>&nbsp;<\/p>\n<p>These warm temperatures in the past two crop years are the result of strong El Ni\u00f1o conditions that have been prevalent.\u00a0 The effect of more growing degree days (GDD) accumulated earlier in the crop year drives development of the crop so that stages of crop development are reached at earlier calendar dates.\u00a0 In other words, the crops are progressing toward maturity at a faster rate than seed growers might otherwise expect.\u00a0 Certain management practices like PGR applications and others are taking place earlier in the season as a result.<\/p>\n<p>One aspect of the 2015-16 crop year that is different than in 2014-15 is the high precipitation in the current crop year.\u00a0 While it has been warm, it has also been wet.\u00a0 Last year was marked by severe drought conditions.\u00a0 Looking ahead, scientists are projecting that the El Ni\u00f1o conditions have waned and that there is a possibility of cooler weather in the next crop year.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Thomas G. Chastain Growth and development of grass seed crops are progressing at a faster rate than is usual for the Willamette Valley as a result of warm winter and spring temperatures in the 2015-16 crop year (Fig. 1).\u00a0 The same pattern was observed in the 2014-15 crop year.\u00a0 These crop years were both much&hellip; <a href=\"https:\/\/dev.blogs.oregonstate.edu\/seedproduction\/2016\/04\/24\/grass-seed-crop-development-advanced-in-back-to-back-years\/\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":2299,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[788175,788179,788184],"tags":[3414,3418,109093],"class_list":["post-1372","post","type-post","status-publish","format-standard","hentry","category-climateweather","category-grass-seed-crops","category-seed-production","tag-climateweather","tag-grass-seed-crops","tag-seed-production"],"_links":{"self":[{"href":"https:\/\/dev.blogs.oregonstate.edu\/seedproduction\/wp-json\/wp\/v2\/posts\/1372","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dev.blogs.oregonstate.edu\/seedproduction\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dev.blogs.oregonstate.edu\/seedproduction\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dev.blogs.oregonstate.edu\/seedproduction\/wp-json\/wp\/v2\/users\/2299"}],"replies":[{"embeddable":true,"href":"https:\/\/dev.blogs.oregonstate.edu\/seedproduction\/wp-json\/wp\/v2\/comments?post=1372"}],"version-history":[{"count":3,"href":"https:\/\/dev.blogs.oregonstate.edu\/seedproduction\/wp-json\/wp\/v2\/posts\/1372\/revisions"}],"predecessor-version":[{"id":1375,"href":"https:\/\/dev.blogs.oregonstate.edu\/seedproduction\/wp-json\/wp\/v2\/posts\/1372\/revisions\/1375"}],"wp:attachment":[{"href":"https:\/\/dev.blogs.oregonstate.edu\/seedproduction\/wp-json\/wp\/v2\/media?parent=1372"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dev.blogs.oregonstate.edu\/seedproduction\/wp-json\/wp\/v2\/categories?post=1372"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dev.blogs.oregonstate.edu\/seedproduction\/wp-json\/wp\/v2\/tags?post=1372"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}