Study On The Effects Induced By Photoperiod To Different Leaf Ages Before Flowering In Adzuki Bean

The experiment carries on the plant specimen garden of AUH in 2005-2006. Takelate-maturing variety adzuki bean Jihong-4 as the experiment material, establishes 12 hourshort-daylenth as the photoperiod treatment day-lenth, until the first couple leaves breaksground, the treating starts. Establishes 5 leaf ages treatment, Take the treatments as thecomparison, which are natural light and continuously treating of short-day for 5 leaf ages.Studies the effects for flowering, sharp, photosynthesis physiology, material accumulationand the yield, main test result as follows:1 The short-day treatment of different leaf ages changed the plant advancementobviously. Compares for every leaf age, younger the leaf age is, earlier mature is, shorterthe whole period of duration is, but the processing change is only in front of the firstflowering time, reduced the vegetative growth time, change the reproduction to growsooner or later, but substantive reduces the total time by no means which there productiongrows, the short-day effects greatly reduced after enters the reproduction growth laterperiod, and the influence is very little to the mature period.2 The activity of NR(nitrate reductase) under LF(leaf age) treatment is higher than CK(natural light) treatment on the whole, and is lower than SD(continuous short daylenth)treatment; The content of the dissociation amino acid under these three treatments show adescend trend along with the leaf ages accretion, but the inducement increasing the contentof dissociation amino acid, different leaf ages leaves show some difference, and alternatingrise with SD treatment; Inducement can reduce the content of soluble sugar, andcontinuous inducement shows a accumulation effect; 2LF is the most sensitivity stage forsoluble protein under photoperiodic inducement, From this stage, each leaf indumenta canreducing the content soluble protein, but continuous inducement reducing rising it. Contentof Car(caroternoid) higher than the other two treatments on the whole, but the content ofChl(chlorophyll) of LF treatment only higher than the CK treatment before 3LF, andreduce subsequently.3 The photoperiod inducement can restrain nutrition growing and younger the leaf ages are, the more distinctness effects are, and each leaf age appears accumulation effect, andthe effect influence the yield directly, but the disciplinarian at each leaf age needs studynext step.4 The influence of the matter accumulates to be more obvious under short-daytreatment in different leaf ages. In the accumulation of flowering, there is more in theyounger, but in the in seed accumulation, the more is the older.5 The effects of the initial bloom stage under short-day treatment in different leaf ages:the first leaf can accept the photoperiod inducement, and is extremely obvious to the firstflowering time influence. Accounting by the leaf period, the most sensitive leaf is 1LF,according to CK first flowering ahead of time 13 days; Accounting by the number ofreduced days from seeding to abloom after treatment per day, the 0LF reduction number ofdays most are many is 3 days, but accumulates 0LF to 4LF continuously SD treatment, theshort-day processing reduction number of days to be most, it seems to be the processingaccumulation effect. Under the test condition, to the florescence photoperiods responsecannot say completely finished.The treatment effects of hurl sequence for the initial bloom stage is obviously, SDtreatment can cause to blossom burl sequence reduces. After the different inducementunder short-day treatment, the 1LF processing compares CK 2 burl to blossom ahead oftime. 0LF, 2LF and 3LF ahead of time 1 burl blossoms, The 4LF processing and CK aresame that blossoms burl is 9th, compares with CK, various maturity degree of young plantsphotoperiods processing not only blossoms ahead of time, the blooms hurl sequencereduces, and the total number of burl when the first flowering is also reduces.6 The influence of gross of flowers and flowered burl distribution under short-daytreatment in different leaf ages: The gross of flowers and the florescence length take a nothalf change after treatment, different processing will enter the flowering season accordingto CK sooner or later the difference to be obvious, the first enters the flowering season isthe SD processing. During the different leaf ages compares, younger the plants is, earlierto enter the flowering season is, and also earlier the ending flowering season is; Accordingto how many distribution orders of the gross of flowers, The least spots flowering count ofeach processing concentrate in 21-25 burl sequence, Other each processing first multi-flowers spots concentrate besides4LF in 6-10 burl sequence, CK and 4LF flowering countfollows according to how many distribution orders first in 11-15, Then is upward to under,again to the under upward rule, This indicated 4LF the reproduction growth process is beenvery small the earlier period short sunshine induction influence, basically does not have thedifference with CK.