15534
It is common to see poor growth and or stunting of the plant , yellowing or wilting of the foliage , and reduced root systems which can include root necrosis , lack of feeder or secondary roots , and occasional tufts of stubby rootlets .
 yellowing
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 yellowing