Flowering is a critical step in fructification. No flowers mean no fruit, and when flower number is low crop load may be limited by the number of flowers formed. In most cases, however, citrus trees form a number of flowers exceedingly higher than the final number of fruits harvested, which usually is a very low percentage of the initial flower number. As in other species which form a large amo...

In this study we have demonstrated the variations of carbohydrates and phenolic compounds present in the leaves and stems of ‘Kinnow’ mandarin (Citrus reticulata Blanco) trees in alternate bearing cycle and the possible involvement of these compounds to flower bud formation process. The amounts of these compounds were determined in the leaves and stems of “on” and “off” trees  monthly  from Nov...

In both short-day and long-day plants, endogenous rhythms apparently are involved in photoperiodic response. One line of the evidence is a rhythmic flowering response to cycle length (1, 3,4, 6,9), and another is the rhythmic effectiveness of light breaks given at different points in very long dark periods (2, 4,6,8, 10). Phlarbitis nil, strain Violet, is an extremely sensitive short-day plant....

(In the 3rd of April 2008) and in the morning of (16 April 2008), the temperature reached - 6 ο C in some pistachio gardens of Kerman County especially in Sirjan. The coldness was so high that affected not only on the open flowers but also on bud endings and lop growth, So that the next year product was endangered, as well. In order to study the effect of some treatments and decrease the damage...

Based on next-generation sequencing data, we assembled the mitochondrial (mt) genome of date palm (Phoenix dactylifera L.) into a circular molecule of 715,001 bp in length. The mt genome of P. dactylifera encodes 38 proteins, 30 tRNAs, and 3 ribosomal RNAs, which constitute a gene content of 6.5% (46,770 bp) over the full length. The rest, 93.5% of the genome sequence, is comprised of cp (chlor...

Based on a careful examination of the onset violet colored dots along filaments in developing floral bud stage and formation alternating bands white color matured flowers Passiflora incarnata (Passion flower), it is concluded that pattern arises from competition between production anthocyanin colorless flavonols filaments. The activator-inhibitor model Gierer Meinhardt with reaction diffusion t...

The RNA base analogues, 2-thiouracil, 6-azauracil and 8-azaguanine incorporated singly into the medium, increased the number of floral buds in excised stem segments of Nicotiana tabacum variety Wisconsin No. 38 cultured in vitro. Combined treatments with 2 and 3 base analogues were even more effective. The effects were prevented by the corresponding natural counterparts, uracil, uridine, and gu...