Effects of water stress duration on proline content and forage quality of Panicum maximum Jacq.
1996
Nawarat Udomprasert | Suwapong Sawasdiphanich (Kasetsart Univ. Kamphaeng Saen Campus, Nakhon Pathom (Thailand). Faculty of Agriculture. Dept. of Agronomy)
Effects of the duration of water stress on forage quality of purple guinea (Panicum maximum Jacq.) were determined by using the accumulation of proline content during water stress as an indicator for drought tolerance. The plants were subjected to water stress for 10, 15 and 20 days before proline, protein, and acid detergent fiber analyses. It was found that protein content of guinea grass decreased under the short period of water stress condition, but increased when the stress was prolonged. Protein content was similar to the control when plants were subjected to water stress for 20 days. Acid-detergent fiber increased under water stress condition. However, different durations of water stress had no effect on the quantity of acid-detergent fiber. Proline content increased as the duration of water stress increased. The results suggested that purple guinea tends to acclimate to drought as considering from the change in its proline and protein contents.
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
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