Mesophyll cells isolated mechanically from leaves of Zinnia elegans L. cv Canary bird differentiate into tracheary elements (TE) semisynchronously and at high frequency. Using this system, three cDNA clones, TED2 to TED4, whose corresponding mRNAs were expressed in a close association with tracheary element differentiation, were isolated by differential screening of a lambda gt11 cDNA library. ...

We present the study of structure seed coat 52 species from 31 genera (Acmella, Ambrosia, Aspilia, Balsamorhiza, Blainvillea, Borrichia, Chrysogonum, Clibadium, Delilia, Echinacea, Eclipta, Engelmannia, Helianthella, Helianthus, Heliomeris, Heliopsis, Iva, Lindheimera, Parthenium, Ratibida, Rudbeckia, Sanvitalia, Silphium, Sphagneticola, Synedrella, Synedrellopsis, Tithonia, Verbesina, Xanthium...

the drastic decline of precipitation over the past decade along with overuse of chemical inputs and consequent soil fertility reduction are the most important problems in the approach to agricultural expansion, particularly in urban landscaping. therefore, an experiment was designed to examine the effects of different irrigation levels (40, 70 and 100 % of field capacity, or fc) and different v...

Soybean is one of the important food commodities in Indonesia which occupies third position after rice and corn. In 2020, soybean production reached 632.3 tons but decreased by 3.01% to 613.3 2021 predicted continue decline until 2024. Whitefly (Bemisia tabaci) pests on soybeans. also a viral vector. The purpose this study was obtain refugia plants were effective suppressing whitefly pest popul...

Locally specific Natabo brown rice was identified in Pangaribuan Subdistrict, North Tapanuli, where the attack of stem borer, planthoppers, leafhoppers and stink bugs affects productivity. The alternative step to control pests a biological used by biology pesticides increase productivity food security. This research conducted for eight months during March October 2020, with survey stage, invent...