. instead of harvesting grain by hand with a sharp blade, wheeled machines cut a continuous swath. instead of threshing the grain by beating it with sticks, threshing machines separated the seeds from the heads and stalks. these machines required a lot of power, which was originally supplied by horses...
and productivity of the affected plantations occurs within a period of thre to five years after initial establishment of the disease. the disease initially manifests on youngest leaf of the affected plants as slender chlorotic flecks. these flecks eventually develop into pale green discontinuous stripes...
and productivity of the affected plantations occurs within a period of thre to five years after initial establishment of the disease. the disease initially manifests on youngest leaf of the affected plants as slender chlorotic flecks. these flecks eventually develop into pale green discontinuous stripes...
and productivity of the affected plantations occurs within a period of thre to five years after initial establishment of the disease. the disease initially manifests on youngest leaf of the affected plants as slender chlorotic flecks. these flecks eventually develop into pale green discontinuous stripes...
and productivity of the affected plantations occurs within a period of thre to five years after initial establishment of the disease. the disease initially manifests on youngest leaf of the affected plants as slender chlorotic flecks. these flecks eventually develop into pale green discontinuous stripes...
and productivity of the affected plantations occurs within a period of thre to five years after initial establishment of the disease. the disease initially manifests on youngest leaf of the affected plants as slender chlorotic flecks. these flecks eventually develop into pale green discontinuous stripes...
and productivity of the affected plantations occurs within a period of thre to five years after initial establishment of the disease. the disease initially manifests on youngest leaf of the affected plants as slender chlorotic flecks. these flecks eventually develop into pale green discontinuous stripes...