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<![endif]-->Penelitian
ini bertujuan untuk menemukan hubungan antara keterediaan kalsium, aktivitas
fisiologis, dan produksi serat abaka. Penelitian ini dilakukan dengan metode
survei. Variabel yang diamati dalam penelitian ini yaitu iklim mikro; sifat
fisika tanah; sifat kimiawi tanah; aktivitas nitrat reduktase (ANR), kadar
klorofil, bukaan stomata, kerapatan stomata, jumlah daun, bobot segar daun,
luas daun, bobot segar pseudostem, dan bobot kering serat abaka.
Berdasarkan data yang telah terkumpul, ditemukan bahwa ketersediaan kalsium
ditanggapi oleh abaka secara signifikan. Abaka menanggapi ketersediaan kalsium
pada variabel ANR, kadar klorofil, kerapatan stomata, jumlah daun, bobot segar
daun, luas daun, bobot segar pseudostem, dan bobot kering serat abaka.
Berdasarkan pembahasan yang telah dilakukan, dapat disimpulkan bahwa
ketersediaan kalsium ditanggapi oleh tanaman abaka dalam aktivitas fisiologis
dan produksi seratnya. Selain itu, ditemukan kecenderungan bahwa dengan adanya
peningkatan ketersediaan kalsium maka semakin aktif aspek fisiologis dan
produksi serat abaka dalam penelitian ini. Adapun mekanisme yang diduga dapat
menjelaskan fenomena ini adalah hadirnya calmodulin.
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<![endif]-->This
study aims to find the relationship between calcium availability, physiological
activity, and abaca fiber production. This research was conducted using a
survey method. The variables observed in this study were microclimate; physical
properties of soil; chemical properties of soil; nitrate reductase activity
(ANR), chlorophyll content, stomatal opening, stomatal density, leaf number,
fresh leaf weight, leaf area, fresh pseudostem weight, and dry abaca fiber
weight. Based on the collected data, it was found that the availability of
calcium was responded by abaca significantly. Abaca responded to calcium
availability in the variables ANR, chlorophyll content, stomatal density, leaf
number, fresh leaf weight, leaf area, fresh pseudostem weight, and dry abaca fiber
weight. Based on the discussion, it can be concluded that the availability of
calcium was responded to by the abaca plant in its physiological activity and
fiber production. Furthermore, it was found that with increasing calcium
availability, the physiological aspects and fiber production of abaca became heightened
in this study. The mechanism that is suspected to explain this phenomenon is
the presence of calmodulin.
Kata Kunci : fisiologi, kalsium, serat, abaka
