Sains Malaysiana 45(7)(2016): 1013–1018
Jatropha curcas
Leaves
Mulch Effect on Seedling Emergence and Growth of Maize (Zea
mays)
(Kesan Mulsa Daun Jatropha curcas ke atas
Percambahan Benih
dan Pertumbuhan Jagung (Zea mays))
MUHAMMAD IRSHAD*,
FAIZAN
ULLAH,
SULTAN
MEHMOOD
& ASIF ULLAH KHAN
Department
of Botany, University of Science and Technology Bannu,
Khyber Pakhtunkhwa
Pakistan
Diserahkan: 21 September 2015/Diterima:
21 Januari 2016
ABSTRACT
Allelopathy is a process in
which one plant species may usefully or adversely affect the growth
of other plant species through the production of allelochemicals.
During the present investigation, mulch effect of Jatropha
curcas leaves was evaluated on seed
germination and seedling growth of maize varieties viz. Pioneer
(V1), Azam (V2) and Jalal (V3). Mulch was applied at 1 and 2 tons/hectare.
Phenolic compounds were detected in Jatropha curcas
leaf (131.15 mg gallic acid eq./gm extract). Mulch
applied at 2 tons/hectare significantly reduced seed germination
(%), germination index, relative water content, root width and seedling
dry weight. From the findings of the present investigation, it was
inferred that Jatropha curcas leaves
exhibited phytotoxic effects on maize at high concentrations.
Keywords: Jatropha
curcas; maize; mulch; phenolics
ABSTRAK
Alelopati adalah suatu proses menggunakan satu spesies pokok untuk
mengawal atau
menjejaskan pertumbuhan spesies tumbuhan yang lain melalui pengeluaran
alelokimia. Semasa kajian ini, kesan mulca daun
Jatropha curcas
dinilai pada percambahan
benih dan pertumbuhan anak benih varieti jagung
viz. Pioneer (V1), Azam (V2) dan Jalal
(V3). Mulca telah digunakan
pada 1 dan 2
tan/hektar. Sebatian fenolik dikesan pada daun Jatropha
curcas (131.15 mg ekstrak
asid galik eq./gm). Mulca yang digunakan pada
2 tan/hektar telah
mengurangkan percambahan benih (%), indeks percambahan, kandungan air relatif, lebar akar dan berat
kering anak
benih. Daripada keputusan kajian
ini, dapat disimpulkan bahawa daun Jatropha curcas menunjukkan kesan fitotoksik ke atas jagung
pada kepekatan
yang tinggi.
Kata kunci: Fenolik;
jagung; Jatropha curcas; mulca
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*Pengarang
untuk surat-menyurat;
email: hmirshad86@gmail.com
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