Salt tolerance of kallar grass (Leptochloa fusca (L.) Kunth.)
1993
Chaiyanam Ditsathaphon | Angsana Tokitkla | Somsri Arunin (Land Development Dept., Bangkok (Thailand). Soil and Water Conservation Div.)
Salt tolerance of kallar grass (Leptochloa fusca (L.)) Kunth was tested in the green house and field condition. The dry matter of kallar grass did not showed any significantly different under the range of salinity level from 0 to 16 ds/m but height of plants, number of tillers, dry weight of roots, number of leaves and number of panicles significantly decreased at 16 ds/m. The accumulation of Na in the shoot tended to decrease at 16 ds/m which may be the mechanism for its salt tolerance. Field experiment was conducted in saline sodic soil with the saturation extract electrical conductivity (Ece) of 12 to 63 ds/m. The results showed that the fresh weight of kallar grass planted at spacing of 10 to 40 cm depended on spacing and the electrical conductivity of soil. The fresh weight obtained from spacing of 10*10 cm were 1.70-4.99 ton/rai and the Eca of EM38 ranged from 239-336 millisemen/m.
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
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